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(triple bluff)
(more clue types)
Line 111: Line 111:
|style="border-color:#ddd;background:#fff;border-top:8px solid #ccc;"|{{text|c=#080|w=bold|Finesse}}:
|style="border-color:#ddd;background:#fff;border-top:8px solid #ccc;"|{{text|c=#080|w=bold|Finesse}}:
* {{text|c=#080|1 unmarked play connects to the target}}
* {{text|c=#080|1 unmarked play connects to the target}}
|-
|style="border-color:#ddd;border-top:8px solid #ccc;"rowspan=2|Alice clues {{card|2}} to Bob:
{{cardholder|{{hBack|2|n=}}{{hBack}}{{hBack}}{{hBack}} |Bob 🡲}}
{{cardholder|{{hb|1}}{{hb|5}}{{hk}}{{hk}} |Cathy 🡲}}
|style="border-color:#ddd;background:#efe;border-top:8px solid #ccc;"|Bob discards
|style="border-color:#ddd;background:#efe;border-top:8px solid #ccc;"|must wait for
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;text-align:right;"|➕{{cardholder|{{hb|1}} |Cathy}}🟰
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;"|{{cardholder|{{hb|2|n=}}{{hBack}}{{hBack}}{{hBack}} |Bob 🡲}}
|style="border-color:#ddd;background:#fff;border-top:8px solid #ccc;"rowspan=2|{{text|c=#080|w=bold|Reversed Finesse}}:
* {{text|c=#080|1 unmarked play connects to the target}}
|-
|style="border-color:#ddd;background:#efe;"|Cathy plays {{hb|1}}
|style="border-color:#ddd;background:#efe;"|connects to {{hBack|2|n=}}
|style="border-color:#ddd;background:#eef;text-align:right;"|🟰
|style="border-color:#ddd;background:#eef;"|{{cardholder|{{hBack}}{{hb|2|n=}}{{hBack}}{{hBack}} |Bob 🡲}}
|-
|style="border-color:#ddd;border-top:8px solid #ccc;"rowspan=2|Alice clues {{card|3}} to Cathy:
{{cardholder|{{hb|1}}{{hb|5}}{{hk}}{{hk}} |Bob 🡲}}
{{cardholder|{{hBack|3|n=}}{{hBack}}{{hBack}}{{hBack}} |Cathy 🡲}}
{{cardholder|{{hb|2}}{{hk}}{{hk}}{{hk}} |Donald 🡲}}
|style="border-color:#ddd;background:#efe;border-top:8px solid #ccc;"|Bob plays {{hb|1}}
|style="border-color:#ddd;background:#efe;border-top:8px solid #ccc;"|connects to {{hBack|3|n=}}
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;text-align:right;"|➕{{cardholder|{{hb|2}} |Donald}}🟰
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;"|{{cardholder|{{hb|3|n=}}{{hBack}}{{hBack}}{{hBack}} |Cathy 🡲}}
|style="border-color:#ddd;background:#fff;border-top:8px solid #ccc;"rowspan=2|{{text|c=#080|w=bold|Long Finesse}}:
* {{text|c=#080|Multiple unmarked plays connect to the target}}
|-
|style="border-color:#ddd;background:#efe;"|Donald plays {{hb|2}}
|style="border-color:#ddd;background:#efe;"|connects to {{hBack|3|n=}}
|style="border-color:#ddd;background:#eef;text-align:right;"|🟰
|style="border-color:#ddd;background:#eef;"|{{cardholder|{{hBack}}{{hb|3|n=}}{{hBack}}{{hBack}} |Cathy 🡲}}
|-
|style="border-color:#ddd;border-top:8px solid #ccc;"rowspan=3|Alice clues {{card|b|background={{b}}|color=white}} to Bob:
{{cardholder|{{hBack|2|{{b}}|c=}}{{hBack}}{{hBack}}{{hBack}} |Bob 🡲}}
{{cardholder|{{hy|1}}{{hb|1}}{{hb|5}}{{hk}} |Cathy 🡲}}
|style="border-color:#ddd;background:#efe;border-top:8px solid #ccc;"|Bob discards
|style="border-color:#ddd;background:#efe;border-top:8px solid #ccc;"|🡆 finesse
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;text-align:right;"|➕{{cardholder|{{hy|1}}{{hb|1}} |Cathy}}🟰
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;"|{{cardholder|{{hBack}}{{hb|2|c=}}{{hBack}}{{hBack}} |Bob 🡲}}
|style="border-color:#ddd;background:#fff;border-top:8px solid #ccc;"rowspan=3|{{text|c=#550|w=bold|Layered}} {{text|c=#080|w=bold|Finesse}}:
* {{text|c=#550|1 unmarked play does not connect to the target}}
* {{text|c=#080|1 unmarked play connects to the target}}
|-
|style="border-color:#ddd;background:#ffe;"|Cathy plays {{hy|1}}
|style="border-color:#ddd;background:#ffe;"|looking for {{hb|1}}
|style="border-color:#ddd;background:#eef;text-align:right;"|➕{{cardholder|{{hb|1}} |Cathy}}🟰
|style="border-color:#ddd;background:#eef;"|{{cardholder|{{hBack}}{{hb|2|c=}}{{hBack}}{{hBack}} |Bob 🡲}}
|-
|style="border-color:#ddd;background:#efe;"|Cathy plays {{hb|1}}
|style="border-color:#ddd;background:#efe;"|connects to {{hBack|2|{{b}}|c=}}
|style="border-color:#ddd;background:#eef;text-align:right;"|🟰
|style="border-color:#ddd;background:#eef;"|{{cardholder|{{hBack}}{{hBack}}{{hb|2|c=}}{{hBack}} |Bob 🡲}}
|-
|style="border-color:#ddd;border-top:8px solid #ccc;"rowspan=3|Alice clues {{card|2}} to Cathy:
{{cardholder|{{hy|1}}{{hb|1}}{{hb|5}}{{hk}} |Bob 🡲}}
{{cardholder|{{hBack|2|n=}}{{hBack}}{{hBack}}{{hBack}} |Cathy 🡲}}
|style="border-color:#ddd;background:#ffe;border-top:8px solid #ccc;"|Bob plays {{hy|1}}
|style="border-color:#ddd;background:#ffe;border-top:8px solid #ccc;"|connects to {{hBack|2|n=}}
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;text-align:right;"|➕{{cardholder|{{hb|1}} |Bob}}🟰
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;"|{{cardholder|{{hb|2|n=}}{{hBack}}{{hBack}}{{hBack}} |Cathy 🡲}}
|style="border-color:#ddd;background:#fff;border-top:8px solid #ccc;"rowspan=3|{{text|c=#550|w=bold|Clandestine Layered}} {{text|c=#080|w=bold|Finesse}}:
* {{text|c=#550|1 unmarked play appears to connect to the target}}
* {{text|c=#080|1 unmarked play connects to the target}}
|-
|style="border-color:#ddd;background:#efe;"|Cathy discards
|style="border-color:#ddd;background:#efe;"|must wait for
|style="border-color:#ddd;background:#eef;text-align:right;"|➕{{cardholder|{{hb|1}} |Bob}}🟰
|style="border-color:#ddd;background:#eef;"|{{cardholder|{{hBack}}{{hb|2|n=}}{{hBack}}{{hBack}} |Cathy 🡲}}
|-
|style="border-color:#ddd;background:#efe;"|Bob plays {{hb|1}}
|style="border-color:#ddd;background:#efe;"|connects to {{hb|2|n=}}
|style="border-color:#ddd;background:#eef;text-align:right;"|🟰
|style="border-color:#ddd;background:#eef;"|{{cardholder|{{hBack}}{{hb|2|n=}}{{hBack}}{{hBack}} |Cathy 🡲}}
|-
|-
|style="border-color:#ddd;border-top:8px solid #ccc;"|Alice clues {{card|b|background={{b}}|color=white}} to Cathy:
|style="border-color:#ddd;border-top:8px solid #ccc;"|Alice clues {{card|b|background={{b}}|color=white}} to Cathy:
Line 126: Line 208:
⚠ All bluff targets must be one card away from playable
⚠ All bluff targets must be one card away from playable
|-
|-
|style="border-color:#ddd;border-top:8px solid #ccc;"rowspan=2|Alice clues {{card|3}} to Donald:
|style="border-color:#ddd;border-top:8px solid #ccc;"|Alice clues {{card|2}} to Cathy:
 
{{hr|2}} {{hy|2}} {{hg|2}} {{hb|1}} {{hw|2}}
 
Discarded: {{hb|2}}
 
{{cardholder|{{hb|2}}{{hk}}{{hk}}{{hk}} |Bob 🡲}}
 
{{cardholder|{{hBack|2|n=}}{{hBack}}{{hBack}}{{hBack}} |Cathy 🡲}}
|style="border-color:#ddd;background:#efe;border-top:8px solid #ccc;"|Bob plays {{hb|2}}
|style="border-color:#ddd;background:#efe;border-top:8px solid #ccc;"|as {{hBack|2|n=}}
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;text-align:right;"|
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;"|
|style="border-color:#ddd;background:#fff;border-top:8px solid #ccc;"|{{text|c=#080|w=bold|Trash Finesse}}:
* All targets are known to the receiver as unplayable before the first response.
* {{text|c=#080|1 unmarked card plays as if it were clued directly with the same clue}}
|-
|style="border-color:#ddd;border-top:8px solid #ccc;"rowspan=3|Alice clues {{card|2}} to Bob:
 
{{hr|2}} {{hy|2}} {{hg|2}} {{hb|1}} {{hw|2}}


{{cardholder|{{hb|1}}{{hb|5}}{{hk}}{{hk}} |Bob 🡲}}
Discarded: {{hb|2}}


{{cardholder|{{hb|2|c=}}{{hk}}{{hk}}{{hk}} |Cathy 🡲}}
{{cardholder|{{hBack|2|n=}}{{hBack}}{{hBack}}{{hBack}} |Bob 🡲}}


{{cardholder|{{hBack|3|n=}}{{hBack}}{{hBack}}{{hBack}} |Donald 🡲}}
{{cardholder|{{hy|3}}{{hb|2}}{{hk}}{{hk}} |Cathy 🡲}}
|style="border-color:#ddd;background:#efe;border-top:8px solid #ccc;"|Bob plays {{hb|1}}
|style="border-color:#ddd;background:#efe;border-top:8px solid #ccc;"|Bob discards {{hBack|2|n=}}
|style="border-color:#ddd;background:#efe;border-top:8px solid #ccc;"|connects to {{hBack|3|n=}}
|style="border-color:#ddd;background:#efe;border-top:8px solid #ccc;"|🡆 finesse
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;text-align:right;"|➕{{cardholder|{{hb|2}} |Cathy}}🟰
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;text-align:right;"|➕{{cardholder|{{hy|3}}{{hb|2}} |Cathy}}
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;"|{{cardholder|{{hb|3|n=}}{{hBack}}{{hBack}}{{hBack}} |Donald 🡲}}
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;"|
|style="border-color:#ddd;background:#fff;border-top:8px solid #ccc;"rowspan=2| {{text|c=#080|w=bold|Long Finesse}}:
|style="border-color:#ddd;background:#fff;border-top:8px solid #ccc;"rowspan=3|{{text|c=#550|w=bold|Layered}} {{text|c=#080|w=bold|Trash Finesse}}:
* {{text|c=#080|Multiple unmarked plays connect to the target}}
* All targets are known to the receiver as unplayable before the first response.
* {{text|c=#550|1 unmarked play does not connect to the clue}}
* {{text|c=#080|1 unmarked play connects to the clue}}
|-
|style="border-color:#ddd;background:#ffe;"|Cathy plays {{hy|3}}
|style="border-color:#ddd;background:#ffe;"|looking for {{hb|2}}
|style="border-color:#ddd;background:#eef;text-align:right;"|➕{{cardholder|{{hb|2}} |Cathy}}
|style="border-color:#ddd;background:#eef;"|
|-
|-
|style="border-color:#ddd;background:#efe;"|Cathy plays {{hb|2}}
|style="border-color:#ddd;background:#efe;"|Cathy plays {{hb|2}}
|style="border-color:#ddd;background:#efe;"|connects to {{hb|3|n=}}
|style="border-color:#ddd;background:#efe;"|as {{hBack|2|n=}}
|style="border-color:#ddd;background:#eef;text-align:right;"|🟰  
|style="border-color:#ddd;background:#eef;text-align:right;"|
|style="border-color:#ddd;background:#eef;"|{{cardholder|{{hb|3|n=}}{{hBack}}{{hBack}}{{hBack}} |Donald 🡲}}
|style="border-color:#ddd;background:#eef;"|
|-
|style="border-color:#ddd;border-top:8px solid #ccc;"|Alice clues {{card|1}} to Cathy:
 
{{hr|1}} {{hy}} {{hg}} {{hb}} {{hw}}
 
{{cardholder|{{hr|2}}{{hk}}{{hk}}{{hk}} |Bob 🡲}}
 
{{cardholder|{{hBack|1|n=}}{{hBack}}{{hBack}}{{hBack}} |Cathy 🡲}}
|style="border-color:#ddd;background:#fee;border-top:8px solid #ccc;"|Bob plays {{hr|2}}
|style="border-color:#ddd;background:#fee;border-top:8px solid #ccc;"|
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;text-align:right;"|{{hBack|1|n=}} ➖ {{hr|1}} 🟰
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;"|{{cardholder|{{hCard|1|n=}}{{hBack}}{{hBack}}{{hBack}} |Cathy 🡲}}
|style="border-color:#ddd;background:#fff;border-top:8px solid #ccc;"|{{text|c=#800|w=bold|Trash Bluff}}:
* {{text|c=#800|1 unmarked play reveals the target is unplayable}}
⚠ Black powder: all bluff targets must be revealed to be trash and not lead to a promise bluff misinterpretation.
|-
|-
|style="border-color:#ddd;border-top:8px solid #ccc;"rowspan=2|Alice clues {{card|3}} to Donald:
|style="border-color:#ddd;border-top:8px solid #ccc;"rowspan=2|Alice clues {{card|3}} to Donald:
Line 310: Line 433:
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;text-align:right;"|➕{{cardholder|{{hb|2}} |Cathy}}🟰
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;text-align:right;"|➕{{cardholder|{{hb|2}} |Cathy}}🟰
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;"|{{cardholder|{{hb|3|n=}}{{hBack}}{{hBack}}{{hBack}} |Emily 🡲}}
|style="border-color:#ddd;background:#eef;border-top:8px solid #ccc;"|{{cardholder|{{hb|3|n=}}{{hBack}}{{hBack}}{{hBack}} |Emily 🡲}}
|style="border-color:#ddd;background:#fff;border-top:8px solid #ccc;"rowspan=2|{{text|c=#800|w=bold|Triple Bluff}}:
|style="border-color:#ddd;background:#fff;border-top:8px solid #ccc;"rowspan=3|{{text|c=#800|w=bold|Triple Bluff}}:
* {{text|c=#800|2 unmarked plays appear to connect to the target}}
* {{text|c=#800|2 unmarked plays appear to connect to the target}}
* {{text|c=#800|1 unmarked play reveals none connect to the target}}
* {{text|c=#800|1 unmarked play reveals none connect to the target}}
Line 416: Line 539:
{{InfoBox |state=collapsed |titleAlign=left |background=#eee |titleColor=#324
{{InfoBox |state=collapsed |titleAlign=left |background=#eee |titleColor=#324
|title={{text|c=#800|Reverse bluff}}
|title={{text|c=#800|Reverse bluff}}
|body=✅ Only when Bob is unable to respond (i.e. they must respond to a previous clue or give a fix clue.
|body=✅ Only when Bob is unable to respond (e.g. they must respond to a previous clue or give a fix clue.
:There are other more complex contextual exceptions to this e.g. Bob must scream or generate a token for another player, but let's not discuss that here {{s;)}}.
:There are other more complex contextual exceptions to this e.g. Bob must scream or generate a token for another player, but let's not discuss that here {{s;)}}.
:Example: [https://boardgamearena.com/archive/replay/250723-1404/?table=707388624&player=97777003&comments=84994396&goto=15 Reverse bluff '''when Bob is busy''']
:Example: [https://boardgamearena.com/archive/replay/250723-1404/?table=707388624&player=97777003&comments=84994396&goto=15 Reverse bluff '''when Bob is busy''']
Line 434: Line 557:
Bob plays {{hr|2}}: Donald will play {{hr|3}}{{hr|4}}
Bob plays {{hr|2}}: Donald will play {{hr|3}}{{hr|4}}
Cathy plays {{hm|3}}: Donald will  
Cathy plays {{hm|3}}: Donald will  
* [https://en.doc.boardgamearena.com/Tips_hanabi#Finesse_bluff Tips page example]
* [https://en.doc.boardgamearena.com/User:Sammy_McSam/Hanabi/Examples More complex example]


What context could change Cathy's response?
What context could change Cathy's response?
{|class=wikitable
|+Valid bluffs
!colspan=2 rowspan=2|
!colspan=4|{{text|c=#088|Prompts}}
!colspan=4|{{text|c=#080|Finesses}}
|-
!{{text|c=#088|1}}
!{{text|c=#088|2}}
!{{text|c=#088|3}}
!{{text|c=#088|4}}
!{{text|c=#080|1}}
!{{text|c=#080|2}}
!{{text|c=#080|3}}
!{{text|c=#080|4}}
|-
!rowspan=4|{{text|c=#800|Bluffs}}
!{{text|c=#800|0}}
|✅ {{text|c=#088|Prompt}}
|colspan=3|✅ {{text|c=#088|Long Prompt}}
|✅ {{text|c=#080|Finesse}}
|colspan=3|✅ {{text|c=#080|Long Finesse}}
|-
!{{text|c=#800|1}}
|✅ {{text|c=#088|Prompt}} {{text|c=#800|Bluff}}
|colspan=3|✅ {{text|c=#088|Long Prompt}} {{text|c=#800|Bluff}}
|✅ {{text|c=#080|Finesse}} {{text|c=#800|Bluff}}
|colspan=3|✅ {{text|c=#080|Long Finesse}} {{text|c=#800|Bluff}}
|-
!{{text|c=#800|2}}
|✅ {{text|c=#088|Prompt}} {{text|c=#800|Double Bluff}}
|colspan=3|✅ {{text|c=#088|Long Prompt}} {{text|c=#800|Double Bluff}}
|❌ {{text|c=#080|Finesse}} {{text|c=#800|Double Bluff}}
|colspan=3|❌ {{text|c=#080|Long Finesse}} {{text|c=#800|Double Bluff}}
|-
!{{text|c=#800|3}}
|❌ {{text|c=#088|Prompt}} {{text|c=#800|Triple Bluff}}
|colspan=3|❌ {{text|c=#088|Long Prompt}} {{text|c=#800|Triple Bluff}}
|❌ {{text|c=#080|Finesse}} {{text|c=#800|Triple Bluff}}
|colspan=3|❌ {{text|c=#080|Long Finesse}} {{text|c=#800|Triple Bluff}}
|}
Prompt bluff (dangerous)
Double prompt bluff (v dangerous)
reverse bluff
trash bluff
trash finesse
-->
-->


Line 651: Line 723:
-->
-->


== <div style="background:linear-gradient(45deg,#aff,#cfd,#fff0 40rem);padding:.25rem .5rem;border-top-left-radius:.5rem;">When is it chop focus?</div> ==
{{text|[[User:Sammy_McSam/Hanabi_page_2|Page 2 >]]|s=2}}
 
[https://boardgamearena.com/forum/viewtopic.php?t=37453 Travis Hall » 16 December 2023, 01:12]
<blockquote>
When playing with high-level partners, I generally try to regard a number clue touching chop as chop-focussed unless there is a timeliness consideration.[&hellip;]when giving a finesse, we can’t wait for the discard of the chop. For example:
:Played: {{hw|2}} {{cardholder|{{hw|3}}{{hk}}{{hk}}{{hk}} |B 🡲}} {{cardholder|{{hm|5}}{{hk}}{{hw|4}}{{hk|4}} |C 🡲}}
 
A clues 4 to C. Cluing white is blocked by {{hm|5}}. Cluing 4 can’t wait, because B will probably discard and {{hw|3}} will move out of finesse. C can note the finesse response and adjust their expectation to play the left 4.
 
And I try to consistently clue the same way.
 
I recognise that many masters will clue 2s non-chop-focussed in the early game. Frankly, I’m not a fan, as this forces me to guess who does this and who does not, but I will guess because my rate of error is lower that way. I understand the consideration that 2s are the most valuable cards, but I’m not sure the risks are worth it.
 
Whenever somebody touches my chop with a number clue and expects me to play from the left, and I misfire, my question is always “Well, if my cards were the opposite way around, how would you have clued them?” Of the few who will answer that question at all, the answer is usually, “I would clue <number>,” and they don’t understand that this makes it impossible for me to do anything other than guess.
</blockquote>
 
Since we know we can extract a playable cards with colour + number clues, it follows that number clues that mark the chop card are interpreted as:
# Unique save if the chop card can be unique
# Double discard save if the player either side of the receiver has a non-unique card of the same number
# Otherwise a left-focused play clue.
 
<span style="float:left;padding-inline-end:1ch;">{{hk|1}}</span>
=== Black powder 1 ===
 
{{card|1}} clues that mark the chop card are interpreted as a {{hk|1}} save (unless the receiver already has a known play).
 
* If a player can see {{hk|1}}, it is logical to play all cards marked {{card|1}} from '''oldest to newest'''.
The oldest is the most valuable {{card|1}} because otherwise it could have been discarded before cluing {{card|1}}.
 
Playing a chop card marked {{card|1}} can be played because:
# {{hk|1}} is visible (and the player who can't see it is '''promised''' {{hk|1}})
#* This player should then track the newest position that can be {{hk|1}}.
#** if this card reaches chop, it should not be saved with a direct clue.
#** if his card does receive a direct clue, it becomes a finesse.
# a playable {{card|1}} was '''discarded'''
# a playable {{card|1}} was '''not bluffed'''
 
 
=== The everlasting exception: context ===
 
'''Context''' > '''convention''' and ''can cause an unconventional move!''
 
Think carefully about:
# timing (why now?),
# negative clues (e.g. "not red"),
# recently discarded cards,
# unique cards,
# tokens needed for saves or other plays
 
{{infoBox |maxWidth=400 |state=collapsed |titleAlign=left |background=#088
|title=Example 1: double discard avoidance
|body=
Sometimes we need more information before we can know if a clue is a chop-focused save or a left-focused play clue.
Double discard avoidance saves are one of the most difficult clues to interpret because it's one of the very few times we can save non-unique cards without expecting a play response.
 
Nothing much is going on and there have not been any good ways to splash, give trash clues or otherwise delay one of the players.
Some players forbid a player from discarding if a [https://en.doc.boardgamearena.com/Gamehelphanabi#Definitions double discard] is possible
}}
 
== <div style="background:linear-gradient(45deg,#aff,#cfd,#fff0 40rem);padding:.25rem .5rem;border-top-left-radius:.5rem;">Strategy</div> ==
 
=== Back to basics ===
 
* In a {{player|5}} player game with {{hand|4}} each and avalanche, there are up to 30 possible moves per player (excluding flamboyants).
:e.g. if each hand has one avalanche {{hm}} card.
* In one round of play that means up to 150 possible unique positions!
* That's a lot to think about. But amazingly our human brains can filter out the vast majority of those moves as not logical given a bit of agreement on clue, play and discard interpretations (conventions).
<!--
, we agree as a team that we must:
Communicate to each other primarily via clues (as well as plays and discards)
Who: all
Where:
When:
Why: To win with the highest possible score
# What: not discard the last copy of any card.
#* How: mark the last copy
 
Two types of clues
 
*To separate
*We always mark unique cards before they are discarded
 
*Most of the time we understand that the clue giver should be the player directly before the clue receiver.
*This is because this seat has the newest information in view
 
*Relative seats of clue giver & receiver
*When we allow any player to clue any hand, it allows for a lot more freedom to clue.
*Cluing more than 1 seat away can happen for a '''[[Tips_hanabi#Skip|number of reasons]]'''.
 
*when to discard - when player right of you has nice cards like 2s
*Delaying certain players with nice non-unique cards
 
*Mark as many first copies of cards as possible to reduce the chance of getting '''bottom-decked'''.
*Bluffs are the easiest way to mark useful 1-away from playable cards.
*Where possible,
-->
=== Hand management ===
 
* Hand management is important in high level play to keep as many non-trash cards in the game for as long as possible.
 
==== When to skip players  ====
 
(and how to irritate them {{s:P}})
 
* Opening with no information on any of your cards.
* The player(s) skipped have duplicate cards that need to be marked with a good touch play clue.
* If you have been the target of a trash bluff and not yet discarded cards to the right of the trash cards.
* Players in front of you have trash.
* The player behind you has many plays.
 
==== Double Discard Avoidance (DDA) ====
 
* Many players have incomplete or non-existent methods for managing DDA because it is difficult as it requires a lot of contextual awareness.
* Players need to be aware of how many opportunities there are to mark double chop cards.
* Anytime a chop card is marked with a number of the same rank visible in the next player's hand DDA should be considered.
** Or even if the double chop players are not next to each other but the in-between players are busy.
 
<span style="float:left;padding-inline-end:1ch;">{{hclue|8}}</span>
=== Efficiency ===
 
==== Bluffs ====
 
* Bluffs are powerful...
* Easiest way to mark nice cards
 
===== Maximising bluff opportunities {{s8)}} =====
 
* Once we realise the power of bluffs, it follows that we want to maximise the number of bluffing opportunities available to players.
* In any given situation, it is possible to work out Alice's optimal move given the information available to her.
 
* The basic idea is simple: look for the bluff opportunity that is furthest ahead.
* Everyone should be making moves that enable that bluff opportunity to be used, and then work backwards from that player for the next opportunity.
 
So from Alice's point of view, she will see if:
# Donald can bluff Emily
# Cathy can bluff Donald
# Bob can bluff Cathy
# Alice can bluff Bob
 
{{infoBoxes3|state=collapsed |titleAlign=left |background=#088
|title1=Example 1|body1=&ZeroWidthSpace;
# {{text|Donald can bluff Emily|c=#080}}
# {{text|Cathy cannot bluff Donald|c=#800}}
# {{text|Bob can bluff Cathy|c=#080}}
# {{text|Alice cannot bluff Bob|c=#800}}
 
Then it's quite easy:
# Alice discards
# Bob bluffs Cathy
# Cathy discards
# Donald bluffs Emily
 
|title2=Example 2|body2=
Now if Alice can also bluff:
# {{text|Donald can bluff Emily|c=#080}}
# {{text|Cathy cannot bluff Donald|c=#800}}
# {{text|Bob can bluff Cathy|c=#080}}
# {{text|Alice can bluff Bob|c=#080}}
 
Then it's still easy:
# Alice either double bluffs Bob & Cathy or discards
# Bob responds or bluffs Cathy
# Cathy discards
# Donald bluffs Emily
 
|title3=Example 3|body3=
Now if Cathy can also bluff:
# {{text|Donald can bluff Emily|c=#080}}
# {{text|Cathy cannot bluff Donald|c=#800}}
# {{text|Bob can bluff Cathy|c=#080}}
# {{text|Alice can bluff Bob|c=#080}}
 
Then it's significantly more complicated for the team to predict, but not much more complex for Alice:
# Alice should probably discard (unless there is a {{text|i=italic|really}} good bluff target available to her
# Bob makes a similar decision
# Cathy responds, double bluffs or discards
# Donald responds or bluffs Emily
}}
 
===== When to not save unique cards {{s:O}} =====
 
* No matter how many tokens you have, whether it is {{hclue|1}} or {{hclue|7}}, you do not always have to spend a token to save a card.
** Some players might find this statement controversial.
* Each player must consider the likelihood of a certain move and assess if the risk-reward of all the possible moves.
 
[[#Back_to_basics We know that there are a lot of possible moves, and even more game states]].
 
Examples of clear good/bad
 
Questionable examples
 
Context examples
 
===== When to Trash bluff =====
 
* When you first learn about trash bluffs, you need to practice it and that's fine.
* Once you are comfortable with how it works, you need to consider if you '''''should''''' use a trash bluff.
 
* Examples where it is clearly bad
:Played: {{hw|1}} {{cardholder|{{hb|1}}{{hk}}{{hk}}{{hk}} |Bob 🡲}} {{cardholder|{{hw|1|n=}}{{hw|1|n=}}{{hb|2}}{{hb|2}} |Cathy 🡲}}
 
* With black powder: {{card|1}} bluffs are {{hk|1}} promise bluffs unless {{hk|1}} is known to Alice and the receiver.
Would you trash bluff 5k when all 5s are not visible?
 
<span style="float:left;padding-inline-end:1ch;">{{hw|3|n=}}</span>
=== Reverses with number ===
 
* Reverse finesses are often not great if the finessed card could instead be bluffed, however, it can be useful to mark a chop card as a reverse to ensure it is not discarded.
*: e.g. Alice sees Bob has {{hw|2}} on chop and Donald just drew {{hw|1}}. Normally the best moves would be for Alice and Bob to discard so that Cathy can bluff Donald's {{hw|1}}, but {{hw|2}} is more valuable than any bluff target Alice can see, so she chooses to reverse with colour.
 
But what if reversing with colour would mark trash?
* If we can finesse with number, why can't we also reverse finesse with number?
* A reverse with number is usually harder to read than a reverse with colour, but they can be a lot more efficient than colour + multiple correction clues (to prevent future bombs).
 
[https://boardgamearena.com/player?id=85786974 Travis Hall] gives a basic explanation of number reverses:
<blockquote>
Similarly, we often avoid number reverses, because if there’s both an available reverse to any card of that number and an immediately playable card of that number, the clue receiver has to guess at the correct move, and this can easily go wrong. Even so, when circumstance narrows the possibilities enough, we can sometimes do a number reverse safely.
</blockquote>
 
<span style="float:left;padding-inline-end:1ch;">{{hm|3|{{w}}|c=}}</span>
=== Multicolour reverses with colour  ===
 
[https://boardgamearena.com/player?id=85786974 Travis Hall] explains it well:
<blockquote>
We usually avoid reverse finesses in multicolour, because although multi does connect with any colour, if we reverse multis then responses to our most common play clues - colour clues to a playable card - just stop, all of them, if a playable multi is in someone’s blind finesse position. That can be very difficult to work around.
</blockquote>
 
* Multicolour reverses with a single colour can work, the most common situation being where the clue giver and receiver can both see a playable card of the colour clued either marked or in the finesse position in someone else's hand.
* Such a reverse may also trigger a [[Gamehelphanabi#Definitions|hesitation]] play.
 
=== When to GD ===
 
# Plays extra cards for free from one ''or more'' hands. <!--See [[#Patch_GD|Patch GD]].-->
# Protect cards
# Token is needed
 
GD without one of these benefits is usually of '''negative value''':
* Limits the freedom to clue.
* Misleads the receiver - the cards to the right of the copy is not trash.
 
== <div style="background:linear-gradient(45deg,#aff,#cfd,#fff0 40rem);padding:.25rem .5rem;border-top-left-radius:.5rem;">Context</div> ==
See [[User:Sammy_McSam/Hanabi_page_2#Context|Hanabi conventions page 2]]
 
== <div style="background:linear-gradient(45deg,#aff,#cfd,#fff0 40rem);padding:.25rem .5rem;border-top-left-radius:.5rem;">Endgame</div> ==
See [[User:Sammy_McSam/Hanabi_page_2#Endgame|Hanabi conventions page 2]]
 
== <div style="background:linear-gradient(45deg,#aff,#cfd,#fff0 40rem);padding:.25rem .5rem;border-top-left-radius:.5rem;">5 Flamboyants</div> ==
See [[User:Sammy_McSam/Hanabi_page_2#5_Flamboyants|Hanabi conventions page 2]]

Revision as of 16:47, 24 June 2026

⚠ Work in progress

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Interpretation

In order to play cooperatively, we need to mark playable cards to get them to play at the correct time. To maximise cooperation, we need to be able to predict the possible moves of other players. The cost of being able to predict moves is to limit the number of moves

  • If a card is playable, logically we assume it will be marked by a clue before it is discarded (unless there is another copy visible).
Valid clue types (not exhaustive)
Situation Response Receiver's Interpretation Clue type
Alice clues 2 to Cathy:

blue5,with a blue 5clue,black powder,with a black powder clue,blue1,with a blue 1clue,black powder,with a black powder clue, Bob 🡲

card back2,with a 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲

Bob plays blue1,with a blue 1clue, connects to card back2,with a 2clue, 🟰 blue2,with a blue 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲 Prompt:
  • 1 marked play connects to the target
Alice clues 2 to Cathy:

blue1,with a blue 1clue,blue5,with a blue 5clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

card back2,with a 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲

Bob plays blue1,with a blue 1clue, connects to card back2,with a 2clue, 🟰 blue2,with a blue 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲 Finesse:
  • 1 unmarked play connects to the target
Alice clues 2 to Bob:

card back2,with a 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Bob 🡲

blue1,with a blue 1clue,blue5,with a blue 5clue,black powder,with a black powder clue,black powder,with a black powder clue, Cathy 🡲

Bob discards must wait for ➕blue1,with a blue 1clue, Cathy🟰 blue2,with a blue 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Bob 🡲 Reversed Finesse:
  • 1 unmarked play connects to the target
Cathy plays blue1,with a blue 1clue, connects to card back2,with a 2clue, 🟰 card back,with a clue,blue2,with a blue 2clue,card back,with a clue,card back,with a clue, Bob 🡲
Alice clues 3 to Cathy:

blue1,with a blue 1clue,blue5,with a blue 5clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

card back3,with a 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲

blue2,with a blue 2clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Donald 🡲

Bob plays blue1,with a blue 1clue, connects to card back3,with a 3clue, ➕blue2,with a blue 2clue, Donald🟰 blue3,with a blue 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲 Long Finesse:
  • Multiple unmarked plays connect to the target
Donald plays blue2,with a blue 2clue, connects to card back3,with a 3clue, 🟰 card back,with a clue,blue3,with a blue 3clue,card back,with a clue,card back,with a clue, Cathy 🡲
Alice clues b to Bob:

card back2,with a 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Bob 🡲

yellow1,with a yellow 1clue,blue1,with a blue 1clue,blue5,with a blue 5clue,black powder,with a black powder clue, Cathy 🡲

Bob discards 🡆 finesse ➕yellow1,with a yellow 1clue,blue1,with a blue 1clue, Cathy🟰 card back,with a clue,blue2,with a blue 2clue,card back,with a clue,card back,with a clue, Bob 🡲 Layered Finesse:
  • 1 unmarked play does not connect to the target
  • 1 unmarked play connects to the target
Cathy plays yellow1,with a yellow 1clue, looking for blue1,with a blue 1clue, ➕blue1,with a blue 1clue, Cathy🟰 card back,with a clue,blue2,with a blue 2clue,card back,with a clue,card back,with a clue, Bob 🡲
Cathy plays blue1,with a blue 1clue, connects to card back2,with a 2clue, 🟰 card back,with a clue,card back,with a clue,blue2,with a blue 2clue,card back,with a clue, Bob 🡲
Alice clues 2 to Cathy:

yellow1,with a yellow 1clue,blue1,with a blue 1clue,blue5,with a blue 5clue,black powder,with a black powder clue, Bob 🡲

card back2,with a 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲

Bob plays yellow1,with a yellow 1clue, connects to card back2,with a 2clue, ➕blue1,with a blue 1clue, Bob🟰 blue2,with a blue 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲 Clandestine Layered Finesse:
  • 1 unmarked play appears to connect to the target
  • 1 unmarked play connects to the target
Cathy discards must wait for ➕blue1,with a blue 1clue, Bob🟰 card back,with a clue,blue2,with a blue 2clue,card back,with a clue,card back,with a clue, Cathy 🡲
Bob plays blue1,with a blue 1clue, connects to blue2,with a blue 2clue, 🟰 card back,with a clue,blue2,with a blue 2clue,card back,with a clue,card back,with a clue, Cathy 🡲
Alice clues b to Cathy:

red1,with a red 1clue,blue5,with a blue 5clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

card back2,with a 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲

Bob plays red1,with a red 1clue, as blue1,with a blue 1clue, 🟰 blue2,with a blue 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲 Bluff:
  • 1 unmarked play doesn't connect to the target

⚠ All bluff targets must be one card away from playable

Alice clues 2 to Cathy:

red2,with a red 2clue, yellow2,with a yellow 2clue, green2,with a green 2clue, blue1,with a blue 1clue, white2,with a white 2clue,

Discarded: blue2,with a blue 2clue,

blue2,with a blue 2clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

card back2,with a 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲

Bob plays blue2,with a blue 2clue, as card back2,with a 2clue, Trash Finesse:
  • All targets are known to the receiver as unplayable before the first response.
  • 1 unmarked card plays as if it were clued directly with the same clue
Alice clues 2 to Bob:

red2,with a red 2clue, yellow2,with a yellow 2clue, green2,with a green 2clue, blue1,with a blue 1clue, white2,with a white 2clue,

Discarded: blue2,with a blue 2clue,

card back2,with a 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Bob 🡲

yellow3,with a yellow 3clue,blue2,with a blue 2clue,black powder,with a black powder clue,black powder,with a black powder clue, Cathy 🡲

Bob discards card back2,with a 2clue, 🡆 finesse ➕yellow3,with a yellow 3clue,blue2,with a blue 2clue, Cathy Layered Trash Finesse:
  • All targets are known to the receiver as unplayable before the first response.
  • 1 unmarked play does not connect to the clue
  • 1 unmarked play connects to the clue
Cathy plays yellow3,with a yellow 3clue, looking for blue2,with a blue 2clue, ➕blue2,with a blue 2clue, Cathy
Cathy plays blue2,with a blue 2clue, as card back2,with a 2clue,
Alice clues 1 to Cathy:

red1,with a red 1clue, yellow,with a yellow clue, green,with a green clue, blue,with a blue clue, white,with a white clue,

red2,with a red 2clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

card back1,with a 1clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲

Bob plays red2,with a red 2clue, card back1,with a 1clue, ➖ red1,with a red 1clue, 🟰 card1,with a Hanabi card 1clue,card back,with a clue,card back,with a clue,card back,with a clue, Cathy 🡲 Trash Bluff:
  • 1 unmarked play reveals the target is unplayable

⚠ Black powder: all bluff targets must be revealed to be trash and not lead to a promise bluff misinterpretation.

Alice clues 3 to Donald:

blue5,with a blue 5clue,black powder,with a black powder clue,blue1,with a blue 1clue,black powder,with a black powder clue, Bob 🡲

blue2,with a blue 2clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Cathy 🡲

card back3,with a 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲

Bob plays blue1,with a blue 1clue, connects to card back3,with a 3clue, ➕blue2,with a blue 2clue, Cathy🟰 blue3,with a blue 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲 Prompt + Finesse:
  • 1 marked play connects to the target
  • 1 unmarked play connects to the target
Cathy plays blue2,with a blue 2clue,. connects to blue3,with a blue 3clue, 🟰 blue3,with a blue 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲
Alice clues 3 to Donald:

blue5,with a blue 5clue,black powder,with a black powder clue,blue1,with a blue 1clue,black powder,with a black powder clue, Bob 🡲

red1,with a red 1clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Cathy 🡲

card back3,with a 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲

Bob plays blue1,with a blue 1clue, connects to card back3,with a 3clue, 🟰 blue3,with a blue 3clue,blue2,with a blue 2clue,card back,with a clue,card back,with a clue, Donald 🡲 Prompt + Bluff:
  • 1 marked play connects to the target
  • 1 unmarked play doesn't connect to the target

⚠ This clue type is dangerous because Bob may not cooperate and try to bluff red1,with a red 1clue, himself before responding to blue3,with a blue 3clue,.

Cathy plays red1,with a red 1clue, as blue2,with a blue 2clue, ➖ blue2,with a blue 2clue, 🟰 blue3,with a blue 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲
Alice clues 3 to Donald:

blue1,with a blue 1clue,blue5,with a blue 5clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

red1,with a red 1clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Cathy 🡲

card back3,with a 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲

Bob plays blue1,with a blue 1clue, connects to card back3,with a 3clue, 🟰 blue3,with a blue 3clue,blue2,with a blue 2clue,card back,with a clue,card back,with a clue, Donald 🡲 Finesse + Bluff:
  • 1 unmarked play connects to the target
  • 1 unmarked play doesn't connect to the target
Cathy plays red1,with a red 1clue, as blue2,with a blue 2clue, ➖ blue2,with a blue 2clue, 🟰 blue3,with a blue 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲
Alice clues b to Donald:

red1,with a red 1clue,blue5,with a blue 5clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

blue2,with a blue 2clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Cathy 🡲

card back3,with a 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲

Bob plays red1,with a red 1clue, as blue1,with a blue 1clue, ➕blue2,with a blue 2clue, Cathy🟰 blue3,with a blue 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲 Promise Bluff:
  • 1 unmarked play doesn't connect to the target
  • 1 unmarked promise to connect to the target
    (in the finesse position of at least one player)
🟰 blue2,with a blue 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲 Bluff:
  • 1 unmarked play doesn't connect to the target
Alice clues 4 to Emily:

blue1,with a blue 1clue,blue5,with a blue 5clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

blue2,with a blue 2clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Cathy 🡲

red1,with a red 1clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Donald 🡲

card back4,with a 4clue,card back,with a clue,card back,with a clue,card back,with a clue, Emily 🡲

Bob plays blue1,with a blue 1clue, connects to card back4,with a 4clue, ➕blue2,with a blue 2clue, Cathy🟰 blue4,with a blue 4clue,blue3,with a blue 3clue,card back,with a clue,card back,with a clue, Emily 🡲 Long Finesse + Bluff:
  • Multiple unmarked plays connect to the target
  • 1 unmarked play doesn't connect to the target
Cathy plays blue2,with a blue 2clue, connects to blue4,with a blue 4clue, 🟰 blue4,with a blue 4clue,blue3,with a blue 3clue,card back,with a clue,card back,with a clue, Emily 🡲
Donald plays red1,with a red 1clue, as blue3,with a blue 3clue, ➖ blue3,with a blue 3clue, 🟰 blue4,with a blue 4clue,card back,with a clue,card back,with a clue,card back,with a clue, Emily 🡲
Alice clues 4 to Donald:

blue1,with a blue 1clue,blue5,with a blue 5clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

red1,with a red 1clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Cathy 🡲

card back4,with a 4clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲

Bob plays blue1,with a blue 1clue, connects to card back4,with a 4clue, 🟰 blue4,with a blue 4clue,blue2,with a blue 2clue,blue3,with a blue 3clue,card back,with a clue, Donald 🡲 Finesse + Promise Bluff:
  • 1 marked play connects to the target
  • 1 unmarked play doesn't connect to the target
  • 1 unmarked promise to connect to the target
    (in the finesse position of at least one player)
Cathy plays red1,with a red 1clue, as blue2,with a blue 2clue, ➖ blue2,with a blue 2clue, 🟰 blue4,with a blue 4clue,blue3,with a blue 3clue,card back,with a clue,card back,with a clue, Donald 🡲
Alice clues 2 to Donald:

blue1,with a blue 1clue,blue5,with a blue 5clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

red1,with a red 1clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Cathy 🡲

card back2,with a 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲

Bob plays blue1,with a blue 1clue, connects to card back2,with a 2clue, 🟰 blue2,with a blue 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲 Double Bluff:
  • 1 unmarked play appears to connect to the target
  • 1 unmarked play reveals neither connect to the target
Cathy plays red1,with a red 1clue, as blue2,with a blue 2clue, ➖ blue2,with a blue 2clue, 🟰 card2,with a Hanabi card 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲
Alice clues 3 to Emily:

blue1,with a blue 1clue,blue5,with a blue 5clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

blue2,with a blue 2clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Cathy 🡲

red1,with a red 1clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Donald 🡲

card back3,with a 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Emily 🡲

Bob plays blue1,with a blue 1clue, connects to card back3,with a 3clue, ➕blue2,with a blue 2clue, Cathy🟰 blue3,with a blue 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Emily 🡲 Triple Bluff:
  • 2 unmarked plays appear to connect to the target
  • 1 unmarked play reveals none connect to the target
Cathy plays blue2,with a blue 2clue, as blue2,with a blue 2clue, 🟰 blue3,with a blue 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Emily 🡲
Donald plays red1,with a red 1clue, as blue3,with a blue 3clue, ➖ blue3,with a blue 3clue, 🟰 card3,with a Hanabi card 3clue,card back,with a clue,card back,with a clue,card back,with a clue, Emily 🡲
Alice clues 2 to Donald:

blue1,with a blue 1clue,blue5,with a blue 5clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

red1,with a red 1clue,black powder4,with a black powder 4clue,black powder3,with a black powder 3clue,black powder,with a black powder clue, Cathy 🡲

card back2,with a 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲

Bob plays blue1,with a blue 1clue, connects to card back2,with a 2clue, 🟰 blue2,with a blue 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲 Double Promise Bluff:
  • 1 unmarked play appears to connect to the target
  • 1 unmarked play reveals neither connect to the target
  • n unmarked promise to connect to the target
    (in the finesse position of at least one player)
Cathy plays red1,with a red 1clue, as blue2,with a blue 2clue, ➕black powder4,with a black powder 4clue,black powder3,with a black powder 3clue, Cathy 🟰 black powder2,with a black powder 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲
➖ blue2,with a blue 2clue, 🟰 card2,with a Hanabi card 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Donald 🡲 Double Bluff:
  • 1 unmarked play appears to connect to the target
  • 1 unmarked play reveals neither connect to the target
Alice clues 2 to Emily:

black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Bob 🡲

multicolour1,with a multicolour 1clue,black powder,with a black powder clue,black powder,with a black powder clue,black powder,with a black powder clue, Cathy 🡲

multicolour2,with a multicolour 2clue,blue1,with a blue 1clue,blue5,with a blue 5clue,black powder,with a black powder clue, Donald 🡲

card back2,with a 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Emily 🡲

Bob discards 🡆 finesse ➕multicolour1,with a multicolour 1clue, Cathy 🟰 multicolour2,with a multicolour 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Emily 🡲 Patch Finesse:
  • Bob does not respond
  • 1 unmarked play attempts to connect to the target
  • 1 unmarked play doesn't connect to the target
  • 1 unmarked play connects to the target
Cathy plays multicolour1,with a multicolour 1clue, connects to card back2,with a 2clue, 🟰 multicolour2,with a multicolour 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Emily 🡲
Donald plays multicolour2,with a multicolour 2clue, disconnects card back2,with a 2clue, ➕blue1,with a blue 1clue, Donald 🟰 blue2,with a blue 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Emily 🡲
Donald plays blue1,with a blue 1clue, connects to card back2,with a 2clue, 🟰 blue2,with a blue 2clue,card back,with a clue,card back,with a clue,card back,with a clue, Emily 🡲

Quiz: valid or invalid?

Quadruple bluff (i.e. none of the four blind plays actually connect to the bluff target)
✅ The first three blind plays will connect to each other and the last blind play reveals the clued card is not the next card in the sequence.
Bluff + Finesse
❌ Bob would not respond if he sees the next connecting card.
Bluff + Prompt
❌ Bob would not respond if he sees the next connecting card.
Double bluff + Finesse
❌ Bob would not respond if he sees the next connecting card.
Double Promise bluff
✅ Only with:
  • number clue (otherwise it would be read as finesse + bluff) and
  • black powder (otherwise it would be read as double bluff).
Reverse bluff
✅ Only when Bob is unable to respond (e.g. they must respond to a previous clue or give a fix clue.
There are other more complex contextual exceptions to this e.g. Bob must scream or generate a token for another player, but let's not discuss that here winking smile​.
Example: Reverse bluff when Bob is busy
Known bluff (when Bob cannot have the connecting card)
✅ If Bob does not respond, someone else will (and bomb).
Example: Known bluff
Trash promise bluff
❌ What nonesense is this..


Extraction

It is possible to extract a card that is 'blocked' by an unplayable card using two clues.

  1. Clue the target with colour.
  2. Clue the target with number.
Example 1: avalanche
red,with a red clue, yellow1,with a yellow 1clue, green,with a green clue, blue,with a blue clue, white,with a white clue, multicolour,with a multicolour clue,

white5,with a white 5clue,yellow4,with a yellow 4clue,red3,with a red 3clue,green5,with a green 5clue, Bob 🡲 white4,with a white 4clue,green4,with a green 4clue,multicolour2,with a multicolour 2clue,yellow2,with a yellow 2clue, Cathy 🡲

  • Avalanche of colors option is on, so multicolour cards are marked by any colour clue.
  • Cathy's yellow2,with a yellow 2clue, should play before it is discarded.
  • The focus of a 2 clue on its own will be multicolour2,with a multicolour 2clue, and the focus of a yellow clue will also be multicolour2,with a multicolour 2clue,.
  • Alice to Cathy: these 2 cards are yellow.

red,with a red clue, yellow1,with a yellow 1clue, green,with a green clue, blue,with a blue clue, white,with a white clue, multicolour,with a multicolour clue, white5,with a white 5clue,yellow4,with a yellow 4clue,red3,with a red 3clue,green5,with a green 5clue, Bob 🡲 white4,with a white 4clue,green4,with a green 4clue,multicolour2,with a 1 2clue,yellow2,with a yellow 2clue, Cathy 🡲

  • Bob to Cathy: these 2 cards are 2s - this fix clue changes the focus from the left 2 to the other 2.

red,with a red clue, yellow1,with a yellow 1clue, green,with a green clue, blue,with a blue clue, white,with a white clue, multicolour,with a multicolour clue, white5,with a white 5clue,yellow4,with a yellow 4clue,red3,with a red 3clue,green5,with a green 5clue, Bob 🡲 white4,with a white 4clue,green4,with a green 4clue,multicolour2,with a 1 2clue,yellow2,with a yellow 2clue, Cathy 🡲

  • Note: if a multicolour card is the intended target of a play clue, the clearest clue would be a colour that does not splash any other card.
Example 2: 5 colors
red,with a red clue, yellow,with a yellow clue, green,with a green clue, blue,with a blue clue, white1,with a white 1clue,
extract white2,with a white 2clue,:
  1. Alice to Cathy: these 2 cards are white.
    • Focus is left.
    card back2,with a 2clue,card back3,with a 3clue,card back,with a clue,card back2,with a 2clue, Cathy 🡲 red2,with a red 2clue,white3,with a white 3clue,black powder,with a black powder clue,white2,with a white 2clue, Cathy 🡲
  2. Bob to Cathy: these 2 cards are 2s.
    • Changes focus from left to right.
    card back2,with a 2clue,card back3,with a 3clue,card back,with a clue,card back2,with a 2clue, Cathy 🡲 red2,with a red 2clue,white3,with a white 3clue,black powder,with a black powder clue,white2,with a white 2clue, Cathy 🡲
Example 3: avalanche
red,with a red clue, yellow,with a yellow clue, green,with a green clue, blue,with a blue clue, white1,with a white 1clue, multicolour,with a multicolour clue,
extract white2,with a white 2clue, with avalanche:
  1. Alice to Cathy: these 3 cards are white.
    • Focus is left.
    card back2,with a 2clue,card back3,with a 3clue,card back,with a clue,card back2,with a 2clue, Cathy 🡲 multicolour2,with a white 2clue,white3,with a white 3clue,black powder,with a black powder clue,white2,with a white 2clue, Cathy 🡲
  2. Bob to Cathy: these 2 cards are 2s.
    • Changes focus from left to right.
    card back2,with a 2clue,card back3,with a 3clue,card back,with a clue,card back2,with a 2clue, Cathy 🡲 multicolour2,with a white 2clue,white3,with a white 3clue,black powder,with a black powder clue,white2,with a white 2clue, Cathy 🡲

Since black powder can't be clued with colour, extraction is a little different:

  1. Clue the target with number.
  2. Clue the card to the left of the target with colour.
Example 4: black powder
red,with a red clue, yellow,with a yellow clue, green,with a green clue, blue,with a blue clue, white,with a white clue, black powder3,with a black powder 3clue,
extract black powder2,with a black powder 2clue,:
  1. Alice to Cathy: these 3 cards are 2s.
    • Focus is left.
    card back2,with a 2clue,card back2,with a 2clue,card back2,with a 2clue,card back,with a clue, Cathy 🡲 yellow2,with a yellow 2clue,red2,with a red 2clue,black powder2,with a black powder 2clue,black powder,with a black powder clue, Cathy 🡲
  2. Bob to Cathy: this card is red.
    • Changes focus from left to right.
    card back2,with a 2clue,card back2,with a 2clue,card back2,with a 2clue,card back,with a clue, Cathy 🡲 yellow2,with a yellow 2clue,red2,with a red 2clue,black powder2,with a black powder 2clue,black powder,with a black powder clue, Cathy 🡲

Why extraction works

  1. Alice gives a white colour clue to indicate to Bob that she is giving a play clue to Cathy.
  2. Bob has one job: don't let Cathy bomb. He sees that one of Cathy's marked white cards is playable, so he understands that he just has to help Cathy play the correct card:
  • If the leftmost white card is playable, Bob does not need to do anything.
  • If the leftmost white card is not playable, Bob needs to help with a follow-up fix clue.

Why colour before number?

  • In each colour, only one card can be playable (two with avalanche), whereas there can be many playable cards of a certain number. So Alice singles out one colour to help Bob know her intention is for him to help Cathy play the correct card.
  • A colour clue can mark a chop card without looking like a save.

How do I know it's not a finesse?

  • The leftmost card may be 1-away-from-playable.

But if Bob can see that one of the cards Alice marked with colour is playable, he will prefer to give a fix clue and not blind play his finesse position.

  • As Bob, consider the choice of clue:
    • if Alice wanted to finesse 2b with a playable 1m in front, why skip players to give specifically a blue clue (why not another colour or number)?
    • if Alice wanted to finesse 4k with a playable 4r in front, why skip players to give specficially a 4 clue (why not red)?

The everlasting exception: context

Context > convention and can cause an unconventional move!

Think carefully about:

  1. timing (why now?),
  2. negative clues (e.g. "not red"),
  3. recently discarded cards,
  4. unique cards,
  5. tokens needed for saves or other plays

Examples

blue2,with a blue 2clue,multicolour1,with a multicolour 1clue,black powder,with a black powder clue,black powder,with a black powder clue,Cathy 🡲 multicolour1,with a multicolour 1clue,blue2,with a blue 2clue,black powder,with a black powder clue,black powder,with a black powder clue,Cathy 🡲

Played: yellow2,with a yellow 2clue, card back,with a clue,card back,with a clue,card back5,with a 5clue,card back5,with a 5clue,Bob 🡲 yellow4,with a yellow 4clue,black powder4,with a black powder 4clue,black powder,with a black powder clue,black powder,with a black powder clue,Cathy 🡲

card back,with a clue,card back,with a clue,card back5,with a 5clue,card back5,with a 5clue,Bob 🡲 yellow4,with a yellow 4clue,black powder4,with a black powder 4clue,black powder,with a black powder clue,black powder,with a black powder clue,Cathy 🡲

  • Alice clues 4s to Cathy. How should Bob respond?
Answer
With no context, the interpretation falls to the fewest blind plays: i.e. prefer to play the marked card back5,with a 5clue, as yellow3,with a yellow 3clue, rather than slot 1 as black powder5,with a black powder 5clue,.
What context could change this interpretation?
Some possible answers:
  1. Bob has negative 3.
  2. Bob had yellow2,with a yellow 2clue, which was marked with number 2 instead of a number 3 fix, and either:
    1. Bob did not discard what would have been a trash 3
    2. yellow4,with a yellow 4clue, was discarded when it could have easily been marked to prompt yellow3,with a yellow 3clue,

In this game the context was 2.1: On move 23 a fix clue was given with number 2 instead of 3, Bob can know that their card back5,with a 5clue, is not yellow3,with a yellow 3clue, (else the fix should be 3¹, not 2). This is why it is important for each player to pay attention to how their own cards are fixed (and what cards they discard afterwards).

¹Note that there are no trash 3s at this point. If there were at least one trash 3 (e.g. white3,with a white 3clue, were played or already marked somewhere), Bob should only make this conclusion after discarding his unmarked card, to check that a 3 fix was not given due to bad touch.

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