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(conventions list update Talk:Gamehelphanabi)
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''Note: the BGA list of conventions does not cover all conventions, so please respect the convention the table creator wants to play. This is why there is an option to display the convention for the table.''
''Note: the BGA list of conventions does not cover all conventions, so please respect the convention the table creator wants to play. This is why there is an option to display the convention for the table.''


=== Standard convention ===
=== Finesse ===


Players assume:
Players assume:
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* The oldest, unmarked (chop) card is safe to discard.
* The oldest, unmarked (chop) card is safe to discard.
* Cards known to be trash are discarded in priority ''e.g. cards marked blue when the blue stack is completed.''
* Cards known to be trash are discarded in priority ''e.g. cards marked blue when the blue stack is completed.''
* Play clues may also include the '''newest, unmarked''' cards in every hand.
==== Save clue ====
* A (number) clue that marks a (unique) chop card¹.
* Focus is the chop card.
¹''Exception: 2 player game with 2+ consecutive saves.''


==== Play clue ====
==== Play clue ====
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# Lead to plays in other hands.
# Lead to plays in other hands.
# Lower rank.
# Lower rank.
==== Save clue ====
* A (number) clue that marks a (unique) chop card¹.
* Focus is the chop card.
¹''Exception: 2 player game with 2+ consecutive saves.''


==== Fix clue ====
==== Fix clue ====
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* Required to change the focus (and prevent a misfire).
* Required to change the focus (and prevent a misfire).


{{infoBoxes |maxWidth=650 |state=collapsed
==== Bad clue ====
|title1=Fix clue example 1
|body1={{Hr|2}} {{Hy|5}} {{Hg|5}} {{Hb|5}} {{Hw|5}}
{{cardholder|{{Hw|1}}{{Hw|1}}{{Hw|2}}{{Hr|4}} |Bob 🡲}}
{{cardholder|{{Hy|4}}{{Hr|5}}{{Hr|3}}{{Hw|3}} |Cathy 🡲}}


* Cathy's {{Hr|3}} must play next.
* Tell a lie ''e.g. a clue that marks {{Hr|2}} as playable without the required {{Hr|1}}.''
* The focus of a 3 clue on its own will be {{Hw|3}} and the focus of a red  clue will be {{Hr|5}}.
* Mark unknown trash or duplicate cards ''e.g. mark '''4'''s in another hand when your hand could have a copy of that '''4'''.''
* Alice to Cathy: these 2 cards are red.


{{Hr|2}} {{Hy|5}} {{Hg|5}} {{Hb|5}} {{Hw|5}}
==== Marked card discard ====
{{cardholder|{{Hw|1}}{{Hw|1}}{{Hw|2}}{{Hr|4}} |Bob 🡲}}
{{cardholder|{{Hy|4}}{{Hr|5|c=}}{{Hr|3|c=}}{{Hw|3}} |Cathy 🡲}}


* Bob to Cathy: these 2 cards are 3s - this fix clue changes the focus from {{Hr|5}} to {{Hr|3}} (now visible).
If a non-trash marked card is discarded it means:
* A copy of that card is already marked in someone else's hand (''sarcastic discard''); or
* A copy of that card must be marked in a future save clue (use with caution); or
* An unmarked copy of that card is playable (''gentleman's discard'')


{{Hr|2}} {{Hy|5}} {{Hg|5}} {{Hb|5}} {{Hw|5}}
==== Examples ====
{{cardholder|{{Hw|1}}{{Hw|1}}{{Hw|2}}{{Hr|4}} |Bob 🡲}}
{{cardholder|{{Hy|4}}{{Hr|5|c=}}{{Hr|3|n=|c=}}{{Hw|3|n=}} |Cathy 🡲}}


|title2=Fix clue example 2
{{infoBoxes3 |maxWidth=650 |state=collapsed
|body2={{Hr}} {{Hy|1}} {{Hg}} {{Hb}} {{Hw}} {{Hm}}
|title1=Save clue
{{cardholder|{{Hw|5}}{{Hy|4}}{{Hr|3}}{{Hg|5}} |Bob 🡲}}
|body1=
{{cardholder|{{Hw|4}}{{Hg|4}}{{Hm|2}}{{Hy|2}} |Cathy 🡲}}
{{Hr|1}} {{Hy|1}} {{Hg|1}} {{Hb|1}} {{Hw}} Discarded: {{Hw|2}}
{{cardholder|{{HBack}}{{HBack}}{{HBack}}{{HBack}} |Alice 🡲}}
{{cardholder|{{Hr|2}}{{Hy|4}}{{Hr|3}}{{Hw|5}} |Bob 🡲}}
{{cardholder|{{Hr|4}}{{Hy|3}}{{Hr|4}}{{Hw|2}} |Cathy 🡲}}


* Avalanche of colors option is on, so multicolour cards are marked by '''any colour clue'''.
* Alice to Bob: this card is a 5.
* Cathy's {{Hy|2}} should play before it is discarded.
* The focus of a 2 clue on its own will be {{Hm|2}} and the focus of a yellow  clue will also be {{Hm|2}}.


* Alice to Cathy: these 2 cards are yellow.
{{Hr|1}} {{Hy|1}} {{Hg|1}} {{Hb|1}} {{Hw}} Discarded: {{Hw|2}}
{{cardholder|{{HBack}}{{HBack}}{{HBack}}{{HBack}} |Alice 🡲}}
{{cardholder|{{Hr|2}}{{Hy|4}}{{Hr|3}}{{Hw|5|n=}} |Bob 🡲}}
{{cardholder|{{Hr|4}}{{Hy|3}}{{Hr|4}}{{Hw|2}} |Cathy 🡲}}


{{Hr}} {{Hy|1}} {{Hg}} {{Hb}} {{Hw}} {{Hm}}
* Bob knows that there is only one 5 of each colour in the deck, so all 5s need to be marked to keep them from being discarded.
{{cardholder|{{Hw|5}}{{Hy|4}}{{Hr|3}}{{Hg|5}} |Bob 🡲}}
* Bob sees Cathy's oldest card is {{Hw|2}} and checks the discard pile to see if he needs to save it from being discarded. There is already a {{Hw|2}} in the discard pile and Bob knows there are only two 2s of each colour, so Cathy has the last remaining {{Hw|2}} and Bob must save it.
{{cardholder|{{Hw|4}}{{Hg|4}}{{Hm|2|{{y}}|1|1|c=}}{{Hy|2|c=}} |Cathy 🡲}}
* Bob to Cathy: this card is a 2.
: Good job Bob.


* Bob to Cathy: these 2 cards are 2s - this fix clue changes the focus from the left 2 to the other 2.
{{Hr|1}} {{Hy|1}} {{Hg|1}} {{Hb|1}} {{Hw}} Discarded: {{Hw|2}}
{{cardholder|{{HBack}}{{HBack}}{{HBack}}{{HBack}} |Alice 🡲}}
{{cardholder|{{Hr|2}}{{Hy|4}}{{Hr|3}}{{Hw|5|n=}} |Bob 🡲}}
{{cardholder|{{Hr|4}}{{Hy|3}}{{Hr|4}}{{Hw|2|n=}} |Cathy 🡲}}


{{Hr}} {{Hy|1}} {{Hg}} {{Hb}} {{Hw}} {{Hm}}
* Cathy looks at the played cards to see if 2s are all playable. The {{Hw|1}} has not been played yet, so she cannot be sure it is playable yet.
{{cardholder|{{Hw|5}}{{Hy|4}}{{Hr|3}}{{Hg|5}} |Bob 🡲}}
* Next Cathy looks at the discard pile to see if there is a 2 in the discard pile.
{{cardholder|{{Hw|4}}{{Hg|4}}{{Hm|2|{{y}}|1|1|n=|c=}}{{Hy|2|n=|c=}} |Cathy 🡲}}
* There is a {{Hw|2}} discarded, so she interprets this number clue marking her oldest card as a save clue to prevent her from discarding it.
: Nice one 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.''
|title2=Play clue
}}
|body2=
 
{{Hr|1}} {{Hy|5}} {{Hg|1}} {{Hb|3}} {{Hw|4}}
==== Bad clue ====
{{cardholder|{{HBack}}{{HBack}}{{HBack}}{{HBack}} |Alice 🡲}}
 
* Tell a lie ''e.g. a clue that marks {{Hr|2}} as playable without the required {{Hr|1}}.''
* Mark unknown trash or duplicate cards ''e.g. mark '''4'''s in another hand when your hand could have a copy of that '''4'''.''
 
{{infoBoxes |maxWidth=650
|title1=Standard convention: Play clue
|body1={{Hr|1}} {{Hy|5}} {{Hg|1}} {{Hb|3}} {{Hw|4}}
{{cardholder|{{Hr|2}}{{Hy|4}}{{Hr|3}}{{Hw|5|n=}} |Bob 🡲}}
{{cardholder|{{Hr|2}}{{Hy|4}}{{Hr|3}}{{Hw|5|n=}} |Bob 🡲}}
{{cardholder|{{Hw|4}}{{Hy|1}}{{Hr|4}}{{Hr|3}} |Cathy 🡲}}
{{cardholder|{{Hw|4}}{{Hy|1}}{{Hr|4}}{{Hr|3}} |Cathy 🡲}}
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{{Hr|1}} {{Hy|5}} {{Hg|1}} {{Hb|3}} {{Hw|4}}
{{Hr|1}} {{Hy|5}} {{Hg|1}} {{Hb|3}} {{Hw|4}}
{{cardholder|{{HBack}}{{HBack}}{{HBack}}{{HBack}} |Alice 🡲}}
{{cardholder|{{Hr|2|c=}}{{Hy|4}}{{Hr|3|c=}}{{Hw|5|n=}} |Bob 🡲}}
{{cardholder|{{Hr|2|c=}}{{Hy|4}}{{Hr|3|c=}}{{Hw|5|n=}} |Bob 🡲}}
{{cardholder|{{Hw|4}}{{Hy|1}}{{Hr|4}}{{Hr|3}} |Cathy 🡲}}
{{cardholder|{{Hw|4}}{{Hy|1}}{{Hr|4}}{{Hr|3}} |Cathy 🡲}}
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* Bob now knows his newest card is the next playable in the sequence ({{Hr|2}}), and the other marked card is {{Hr|3}}, {{Hr|4}} or {{Hr|5}} (because every marked card will be playable at some point).
* Bob now knows his newest card is the next playable in the sequence ({{Hr|2}}), and the other marked card is {{Hr|3}}, {{Hr|4}} or {{Hr|5}} (because every marked card will be playable at some point).


|title2=Standard convention: Prompt
|title3=Fix clue
|body2={{Hr|2}} {{Hy|5}} {{Hg|1}} {{Hb|3}} {{Hw|4}}
|body3=
{{Hr|2}} {{Hy|5}} {{Hg|5}} {{Hb|5}} {{Hw|5}}
{{cardholder|{{Hw|1}}{{Hw|1}}{{Hw|2}}{{Hr|4}} |Bob 🡲}}
{{cardholder|{{Hy|4}}{{Hr|5}}{{Hr|3}}{{Hw|3}} |Cathy 🡲}}
 
* Cathy's {{Hr|3}} must play next.
* The focus of a 3 clue on its own will be {{Hw|3}} and the focus of a red  clue will be {{Hr|5}}.
* Alice to Cathy: these 2 cards are red.
 
{{Hr|2}} {{Hy|5}} {{Hg|5}} {{Hb|5}} {{Hw|5}}
{{cardholder|{{Hw|1}}{{Hw|1}}{{Hw|2}}{{Hr|4}} |Bob 🡲}}
{{cardholder|{{Hy|4}}{{Hr|5|c=}}{{Hr|3|c=}}{{Hw|3}} |Cathy 🡲}}
 
* Bob to Cathy: these 2 cards are 3s - this fix clue changes the focus from {{Hr|5}} to {{Hr|3}} (now visible).
 
{{Hr|2}} {{Hy|5}} {{Hg|5}} {{Hb|5}} {{Hw|5}}
{{cardholder|{{Hw|1}}{{Hw|1}}{{Hw|2}}{{Hr|4}} |Bob 🡲}}
{{cardholder|{{Hy|4}}{{Hr|5|c=}}{{Hr|3|n=|c=}}{{Hw|3|n=}} |Cathy 🡲}}
}}
 
{{infoBoxes3 |maxWidth=650 |state=collapsed
|title1=Prompt
|body1=
{{Hr|2}} {{Hy|5}} {{Hg|1}} {{Hb|3}} {{Hw|4}}
{{cardholder|{{HBack}}{{HBack}}{{HBack}}{{HBack}} |Alice 🡲}}
{{cardholder|{{Hb|5}}{{Hy|4}}{{Hr|3|c=}}{{Hw|5|n=}} |Bob 🡲}}
{{cardholder|{{Hb|5}}{{Hy|4}}{{Hr|3|c=}}{{Hw|5|n=}} |Bob 🡲}}
{{cardholder|{{Hw|2}}{{Hw|4}}{{Hy|1}}{{Hr|4}} |Cathy 🡲}}
{{cardholder|{{Hw|2}}{{Hw|4}}{{Hy|1}}{{Hr|4}} |Cathy 🡲}}
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{{Hr|2}} {{Hy|5}} {{Hg|1}} {{Hb|3}} {{Hw|4}}
{{Hr|2}} {{Hy|5}} {{Hg|1}} {{Hb|3}} {{Hw|4}}
{{cardholder|{{HBack}}{{HBack}}{{HBack}}{{HBack}} |Alice 🡲}}
{{cardholder|{{Hb|5}}{{Hy|4}}{{Hr|3|c=}}{{Hw|5|n=}} |Bob 🡲}}
{{cardholder|{{Hb|5}}{{Hy|4}}{{Hr|3|c=}}{{Hw|5|n=}} |Bob 🡲}}
{{cardholder|{{Hw|2}}{{Hw|4}}{{Hy|1}}{{Hr|4|c=}} |Cathy 🡲}}
{{cardholder|{{Hw|2}}{{Hw|4}}{{Hy|1}}{{Hr|4|c=}} |Cathy 🡲}}
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* Cathy now knows her marked card is the next playable in the sequence ⇨ {{Hr|4}}, because {{Hr|3}} is already marked.
* Cathy now knows her marked card is the next playable in the sequence ⇨ {{Hr|4}}, because {{Hr|3}} is already marked.
* Bob now knows his marked red card is {{Hr|3}} and he must play it now.
* Bob now knows his marked red card is {{Hr|3}} and he must play it now.
}}


=== Finesse convention ===
|title2=Finesse
 
|body2=
Players assume:
{{Hr}} {{Hy}} {{Hg}} {{Hb}} {{Hw}}
* Standard convention
* Play clues may also include the '''newest, unmarked''' cards in every hand.
 
{{infoBoxes3 |maxWidth=650
|title1=Finesse example
|body1={{Hr}} {{Hy}} {{Hg}} {{Hb}} {{Hw}}
{{cardholder|{{Hb|1}}{{Hr|5}}{{Hb|3}}{{Hw|1}} |Bob 🡲}}
{{cardholder|{{Hb|1}}{{Hr|5}}{{Hb|3}}{{Hw|1}} |Bob 🡲}}
{{cardholder|{{Hr|5}}{{Hr|2}}{{Hb|2}}{{Hg|2}} |Cathy 🡲}}
{{cardholder|{{Hr|5}}{{Hr|2}}{{Hb|2}}{{Hg|2}} |Cathy 🡲}}
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* {{Hb|1}} successfully plays.
* {{Hb|1}} successfully plays.


|title2=Reversed finesse example
|title3=Reversed finesse
|body2={{Hr}} {{Hy}} {{Hg}} {{Hb}} {{Hw}}
|body3=
{{Hr}} {{Hy}} {{Hg}} {{Hb}} {{Hw}}
{{cardholder|{{Hr|5}}{{Hr|2}}{{Hb|2}}{{Hg|2}} |Bob 🡲}}
{{cardholder|{{Hr|5}}{{Hr|2}}{{Hb|2}}{{Hg|2}} |Bob 🡲}}
{{cardholder|{{Hb|1}}{{Hr|5}}{{Hb|3}}{{Hw|1}} |Cathy 🡲}}
{{cardholder|{{Hb|1}}{{Hr|5}}{{Hb|3}}{{Hw|1}} |Cathy 🡲}}
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* Bob now knows his marked {{Hb|2}} is playable.
* Bob now knows his marked {{Hb|2}} is playable.
* Bob sees the newest, unmarked card in Cathy's hand is of the same colour '''and''' playable now. Bob assumes it is a finesse with the players in reversed order and his blue card is {{Hb|2}}.
* Bob sees the newest, unmarked card in Cathy's hand is of the same colour '''and''' playable now. Bob assumes it is a finesse with the players in reversed order and his blue card is {{Hb|2}}.
}}


|title3=Bluff example
{{infoBoxes |maxWidth=650 |state=collapsed
|body3=
|title1=Bluff
|body1=
{{Hr}} {{Hy}} {{Hg}} {{Hb}} {{Hw}}
{{Hr}} {{Hy}} {{Hg}} {{Hb}} {{Hw}}
{{cardholder|{{Hw|1}}{{Hr|5}}{{Hb|3}}{{Hw|1}} |Bob 🡲}}
{{cardholder|{{Hw|1}}{{Hr|5}}{{Hb|3}}{{Hw|1}} |Bob 🡲}}
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Some interpretations are more stringent, also must be a ''1-away-from-playable'' {{Hb|2}}.
Some interpretations are more stringent, also must be a ''1-away-from-playable'' {{Hb|2}}.
|title2=Long finesse
|body2=​
* Alice to Bob: this card is a 4.
{{Hr|1}} {{Hy|1}} {{Hg|1}} {{Hb}} {{Hw}}
{{cardholder|{{Hw|1}}{{Hw|2}}{{Hw|4|n=}}{{Hg|1}} |Bob 🡲}}
{{cardholder|{{Hw|3}}{{Hb|1}}{{Hg|1}}{{Hy|1}} |Cathy 🡲}}
* Bob has been given a play clue and does not see a playable card in any hand, so Bob blind plays his draw card.
* {{Hw|1}} successfully plays.
* Cathy sees that Bob has {{Hw|2}} in front of {{Hw|4}} but {{Hw|3}} is missing, so Cathy knows she must play {{Hw|3}} at the correct moment.
* Cathy discards, Alice discards and Bob blind plays his 2nd slot {{Hw|2}}.
{{Hr|1}} {{Hy|1}} {{Hg|1}} {{Hb}} {{Hw|2}}
{{cardholder|{{Hb|5}}{{Hy|1}}{{Hw|4|n=}}{{Hg|1}} |Bob 🡲}}
{{cardholder|{{Hy|2}}{{Hw|3}}{{Hb|1}}{{Hg|1}} |Cathy 🡲}}
* Cathy blind plays her 2nd slot {{Hw|3}}.
* Alice discards and Bob plays the marked {{Hw|4}}.
}}
}}


=== Marked card discard ===
=== Layered Finesse ===


If a non-trash marked card is discarded it means:
Players assume:
* A copy of that card is already marked in someone else's hand (''sarcastic discard''); or
* BGA Finesse convention above.
* A copy of that card must be marked in a future save clue (use with caution); or
* Finessed cards can be layered behind other unrelated, but playable cards.
* An unmarked copy of that card is playable (''gentleman's discard'')
 
==== Examples ====
 
{{infoBox |maxWidth=650 |state=collapsed
|title=Layered finesse
|body=​
* Alice to Bob: these 2 cards are blue.
 
{{Hr|1}} {{Hy|1}} {{Hg|1}} {{Hb}} {{Hw|4}}
{{cardholder|{{Hb|2|c=}}{{Hb|5|c=}}{{Hy|1}}{{Hg|1}} |Bob 🡲}}
{{cardholder|{{Hr|2}}{{Hy|2}}{{Hb|1}}{{Hg|1}} |Cathy 🡲}}
 
* Bob sees a playable {{Hb|1}} in Cathy's hand, layered behind other playable cards {{Hr|2}} and {{Hy|2}}.
* Bob discards and Cathy blind plays for {{Hb|1}}. {{Hr|2}} successfully plays.
* Cathy knows this cannot be a bluff because Bob would not discard unless he sees a playable {{Hb|1}} in Cathy's hand.
* So Cathy knows she is promised {{Hb|1}} and keeps playing each slot from left to right until her {{Hb|1}} is played.
}}


=== Definitions ===
=== Definitions ===


<div style="columns:20rem auto;column-gap:2rem;">
<div style="columns:20rem auto;column-gap:2rem;">
==== <span style="color:{{r}};font:700 larger cursive;">Basic</span> ====
==== {{text|Basic|c={{r}}|w=700|f=cursive|s=1.05}} ====


'''Convention''': Agreed set of clue, play and discard interpretations. ''e.g. a number clue that marks the chop card should be interpreted as a unique card save (if there is a unique card of that number).''
'''Convention''': Agreed set of clue, play and discard interpretations. ''e.g. a number clue that marks the chop card should be interpreted as a unique card save (if there is a unique card of that number).''
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'''Prompt''': A play clue that causes connecting marked card(s) to play.
'''Prompt''': A play clue that causes connecting marked card(s) to play.


==== ''<span style="color:{{g}};font:700 larger cursive;">Intermediate</span>'' ====
==== {{text|Intermediate|c={{g}}|w=700|f=cursive|s=1.05}} ====


'''Good Touch Principle''': All marked cards will eventually be played.
'''Good Touch Principle''': All marked cards will eventually be played.
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'''Finesse''': A play clue that causes connecting unmarked card(s) to play.
'''Finesse''': A play clue that causes connecting unmarked card(s) to play.


'''Bluff''': A play clue that causes a non-connecting unmarked card to play immediately.
'''Bluff''': A play clue that causes a non-connecting unmarked card to play.


'''Bluff seat''': The player directly before the player who is bluffed.
'''Bluff seat''': The player directly before the player who is bluffed.¹


'''Bottom-decked''': When the remaining copy of a playable card is too near the bottom of the deck to achieve a perfect score.
'''Bottom-decked''': When the remaining copy of a playable card is too near the bottom of the deck to achieve a perfect score.
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'''Scream discard''': An unexpected discard to save a unique card in another hand.
'''Scream discard''': An unexpected discard to save a unique card in another hand.


==== ''<span style="color:{{m}};font:700 larger cursive;">Advanced</span>'' ====
==== {{text|Advanced|c={{m}}|w=700|f=cursive|s=1.05}} ====


'''Long finesse''': A finesse of three or more cards lasting more than one complete round.
'''Long finesse''': A finesse of three or more cards lasting more than one complete round.
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'''Generation discard''': An unexpected discard to gain {{Hclue|1}}.
'''Generation discard''': An unexpected discard to gain {{Hclue|1}}.


</div>
</div>¹bluff seat is an [https://hanabi.github.io/level-11/#the-bluff-seat H-Group concept]. Note that this concept is unhelpful for understanding how bluffs work since outside of H-Group, it is possible to bluff any player given the right conditions.


== Options ==
== Options ==
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!References
!References
|-
|-
|'''Standard'''
|'''Unspecified'''
|BGA convention without blind-plays.
|No convention, so don't assume any conventional moves!
|Standard convention above


[https://docs.google.com/document/d/1VzgN6WoeYwh5NYtHECzUNZqFvpVcg-EdObU-YNMlyhc Hanabi "reference" for bga]
Ask the table host if they will be following any convention.
|N/A
|-
|-
|'''Finesse'''
|'''Finesse'''
|BGA convention with blind-plays.
|BGA convention with blind-plays
|Finesse convention above
|Finesse convention above


[https://docs.google.com/document/d/1VzgN6WoeYwh5NYtHECzUNZqFvpVcg-EdObU-YNMlyhc Hanabi "reference" for bga]
[https://docs.google.com/document/d/1VzgN6WoeYwh5NYtHECzUNZqFvpVcg-EdObU-YNMlyhc Hanabi "reference" for bga]
|-
|-
|'''Hat-guessing'''
|'''Layered finesse'''
|Clues relate to slot position, not the cards marked.
|BGA Finesse convention with additional unrelated blind-plays
|[https://github.com/hanabi/hanabi.github.io/blob/main/misc/hat-guessing.md H-Group]
|Layered Finesse convention above


[https://github.com/fpvandoorn/hanabi/blob/master/doc_hat_player.md Robert Kaspar]
[https://docs.google.com/document/d/1VzgN6WoeYwh5NYtHECzUNZqFvpVcg-EdObU-YNMlyhc Hanabi "reference" for bga]
 
[https://github.com/hanabi/hanabi.github.io/blob/main/misc/empty-clues.md H-Group empty clues]
|-
|'''Logical Leftism'''
|No convention, just logic.
|[http://hanabilogic.eklablog.com/basics-level-1-a117610126 hanabi logic]
|-
|-
|'''Closest Friend'''
|'''H-Group'''
|Clue interpretation depends on which player gave the clue.
|Comprehensive, level-based and chop-focused
|[https://github.com/hanabi/hanabi.github.io/blob/main/pdf/newest-friend.pdf H-Group]
|[https://hanabi.github.io H-Group]
|-
|-
|'''Secret convention'''
|'''Other'''
|Each player randomly selects a secret '''[https://perchance.org/e6dtm5lj3r restriction]'''.
|Not listed above
|[https://boardgamearena.com/forum/viewtopic.php?t=26863 Secret variant]
|Other conventions below
 
[https://boardgamearena.com/forum/viewtopic.php?p=71264#p71264 Secret hanabi restriction]
|-
|'''Conventional Leftism'''
|Same as Standard.
|[http://hanabilogic.eklablog.com/no-conventional-leftism-a117757604 hanabi logic]
[https://docs.google.com/document/d/1sz3if8-9JJDAcbvdi3MHEAv9L5ljyHHnTSEACKk5RUY/edit#heading=h.q88fl7o62h8c Postmans]
|-
|'''Chop-focus'''
|The focus of a clue that marks a chop card is always the chop card.
|[https://hanabi.github.io/docs/beginner/single-card-focus#determining-the-focus-4-steps H-Group]
|}
|}


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|'''3'''
|'''3'''
|}
|}
== Other conventions ==
{|class="wikitable" style="width:auto;" border="2"
!Name
!Summary
!References
|-
|'''Logical Leftism'''
|No convention, just logic
|[http://hanabilogic.eklablog.com/basics-level-1-a117610126 hanabi logic]
|-
|'''Conventional Leftism'''
|Another name for Finesse
|[http://hanabilogic.eklablog.com/no-conventional-leftism-a117757604 hanabi logic]
[https://docs.google.com/document/d/1sz3if8-9JJDAcbvdi3MHEAv9L5ljyHHnTSEACKk5RUY/edit#heading=h.q88fl7o62h8c Postmans]
|-
|'''Hat-guessing'''
|Clues relate to slot position, not the cards marked
|[https://github.com/hanabi/hanabi.github.io/blob/main/misc/hat-guessing.md H-Group]
[https://github.com/fpvandoorn/hanabi/blob/master/doc_hat_player.md Robert Kaspar]
[https://github.com/hanabi/hanabi.github.io/blob/main/misc/empty-clues.md H-Group empty clues]
|-
|'''Closest Friend'''
|Clue interpretation depends on which player gave the clue
|[https://github.com/hanabi/hanabi.github.io/blob/main/pdf/newest-friend.pdf H-Group]
|-
|'''Secret convention'''
|Each player randomly selects a secret '''[https://perchance.org/e6dtm5lj3r restriction]'''
|[https://boardgamearena.com/forum/viewtopic.php?t=26863 Secret variant]
[https://boardgamearena.com/forum/viewtopic.php?p=71264#p71264 Secret hanabi restriction]
|}
== Chat ==
* It is against the rules of the game to share information that influences a player's move beyond the game actions of cluing, playing, or discarding.
* Even a single question mark sent in chat can influence the decisions of all players. e.g. a missed finesse or some other unexpected move.
* This is why it is best to wait until the end of the game to discuss moves.


== ELO rating ==
== ELO rating ==
Line 568: Line 647:


²''+5 card multicolor option is unrated (too dependent on draw to reflect skill).''
²''+5 card multicolor option is unrated (too dependent on draw to reflect skill).''
== Cheating ==
* Players can cheat at Hanabi by sharing information via the chat user interface. This is why ranking has been disabled for this game.
[[Category:Card games]]

Revision as of 03:02, 8 July 2025

Overview

  • Hanabi is a cooperative game. Your goal, as a team, is to build a fabulous fireworks show.
  • You have to put together fireworks by playing each individual colour (red, yellow, green, blue and white) in series (1 ⇨ 2 ⇨ 3 ⇨ 4 ⇨ 5).
  • Each colour in the deck has 111, 22, 33, 44, 5.
  • You cannot see your own cards; you can only see the cards of your teammates.
  • You can only communicate with your teammates via clues, playing and discarding cards (see below).
  • No other communication is allowed.
Final Score Ratings
Points Overall impression
0-5 horrible, booed by the crowd...
6-10 mediocre, just a spattering of applause.
11-15 honourable, but will not be remembered for very long...
16-20 excellent, crowd pleasing.
21-24 amazing, will be remembered for a very long time!
25-29 legendary, everyone left speechless, stars in their eyes!
30 Divine, the display outshines the stars!

Note: 25 is the maximum score with Normal: 5 colors.

Setup

Deal
# Players 2-3 4-5
# Cards 5 4

8clue tokens clue tokens

Game play

Players take turns to either:

  • Give a clue
  • Play a card, or
  • Discard a card

Clue

Possible with at least 1clue tokens available:

  • All cards of a colour, or
  • All cards of a number, or
  • No cards of a colour, e.g. "Player1 to Player2: you have no red card" or
  • No cards of a number e.g. "Player1 to Player2: you have no 5"
  1. The active player selects a card in another player's hand.
  2. The active player selects a clue option.
  3. 1clue tokens is moved from 'available' to 'used'.

Play

  1. The active player selects a card in their hand.
  2. The active player selects the 'Play selected card' button.
    • If the played card fits in any of the sequences, it is placed in the appropriate colour stack on the table.
    • If the played card does not fit, it is placed in the discard pile and the team gets a misfire token.
  3. A replacement card is drawn.

Discard

Possible with fewer than 8clue tokens available:

  1. The active player selects a card in their hand.
  2. The active player selects the 'Discard selected card' button.
  3. The discarded card is placed in the discard pile.
  4. 1clue tokens is moved from 'used' to 'available'.
  5. A replacement card is drawn.

Game end

The game can end in several ways:

  • All cards have been drawn from the deck. After this happens, each player has one more turn. The game ends with the score after the last turn.
  • Your team played all possible cards. In this case, the game ends immediately.
  • Your team made three mistakes that caused misfires. In this case, all players lose the game and receive -10 ELO points.
  • Your team concedes the game. All players receive -10 ELO points.
  • A player quits the game. Only the player that quit first receives -10 ELO points. All other players' ELO is unchanged.

Conventions

  • There are not enough ​clue tokens to clue both colour and number of every played card, so the team must agree on a set of clue, play and discard interpretations, known as a convention.
  • Many players use different conventions and if teammates have very different clue interpretations, the game becomes unsuccessful.
  • Read about some of the most common conventions in this forum post by Romain672.

Note: the BGA list of conventions does not cover all conventions, so please respect the convention the table creator wants to play. This is why there is an option to display the convention for the table.

Finesse

Players assume:

  • Every marked card will be playable at some point.
  • The oldest, unmarked (chop) card is safe to discard.
  • Cards known to be trash are discarded in priority e.g. cards marked blue when the blue stack is completed.
  • Play clues may also include the newest, unmarked cards in every hand.

Save clue

  • A (number) clue that marks a (unique) chop card¹.
  • Focus is the chop card.

¹Exception: 2 player game with 2+ consecutive saves.

Play clue

  • A clue that does not mark a (unique) chop card¹.
  • Focus is the newest card.

Priority:

  1. Lead to plays in other hands.
  2. Lower rank.

Fix clue

  • A follow-up clue on the same hand as an initial play clue.
  • Required to change the focus (and prevent a misfire).

Bad clue

  • Tell a lie e.g. a clue that marks red2,with a red2clue, as playable without the required red1,with a red1clue,.
  • Mark unknown trash or duplicate cards e.g. mark 4s in another hand when your hand could have a copy of that 4.

Marked card discard

If a non-trash marked card is discarded it means:

  • A copy of that card is already marked in someone else's hand (sarcastic discard); or
  • A copy of that card must be marked in a future save clue (use with caution); or
  • An unmarked copy of that card is playable (gentleman's discard)

Examples

Save clue
red1,with a red1clue, yellow1,with a yellow1clue, green1,with a green1clue, blue1,with a blue1clue, white,with a whiteclue, Discarded: white2,with a white2clue,

card back,with a clue,card back,with a clue,card back,with a clue,card back,with a clue, Alice 🡲 red2,with a red2clue,yellow4,with a yellow4clue,red3,with a red3clue,white5,with a white5clue, Bob 🡲 red4,with a red4clue,yellow3,with a yellow3clue,red4,with a red4clue,white2,with a white2clue, Cathy 🡲

  • Alice to Bob: this card is a 5.

red1,with a red1clue, yellow1,with a yellow1clue, green1,with a green1clue, blue1,with a blue1clue, white,with a whiteclue, Discarded: white2,with a white2clue, card back,with a clue,card back,with a clue,card back,with a clue,card back,with a clue, Alice 🡲 red2,with a red2clue,yellow4,with a yellow4clue,red3,with a red3clue,white5,with a white5clue, Bob 🡲 red4,with a red4clue,yellow3,with a yellow3clue,red4,with a red4clue,white2,with a white2clue, Cathy 🡲

  • Bob knows that there is only one 5 of each colour in the deck, so all 5s need to be marked to keep them from being discarded.
  • Bob sees Cathy's oldest card is white2,with a white2clue, and checks the discard pile to see if he needs to save it from being discarded. There is already a white2,with a white2clue, in the discard pile and Bob knows there are only two 2s of each colour, so Cathy has the last remaining white2,with a white2clue, and Bob must save it.
  • Bob to Cathy: this card is a 2.
Good job Bob.

red1,with a red1clue, yellow1,with a yellow1clue, green1,with a green1clue, blue1,with a blue1clue, white,with a whiteclue, Discarded: white2,with a white2clue, card back,with a clue,card back,with a clue,card back,with a clue,card back,with a clue, Alice 🡲 red2,with a red2clue,yellow4,with a yellow4clue,red3,with a red3clue,white5,with a white5clue, Bob 🡲 red4,with a red4clue,yellow3,with a yellow3clue,red4,with a red4clue,white2,with a white2clue, Cathy 🡲

  • Cathy looks at the played cards to see if 2s are all playable. The white1,with a white1clue, has not been played yet, so she cannot be sure it is playable yet.
  • Next Cathy looks at the discard pile to see if there is a 2 in the discard pile.
  • There is a white2,with a white2clue, discarded, so she interprets this number clue marking her oldest card as a save clue to prevent her from discarding it.
Nice one Cathy.
Play clue
red1,with a red1clue, yellow5,with a yellow5clue, green1,with a green1clue, blue3,with a blue3clue, white4,with a white4clue,

card back,with a clue,card back,with a clue,card back,with a clue,card back,with a clue, Alice 🡲 red2,with a red2clue,yellow4,with a yellow4clue,red3,with a red3clue,white5,with a white5clue, Bob 🡲 white4,with a white4clue,yellow1,with a yellow1clue,red4,with a red4clue,red3,with a red3clue, Cathy 🡲

  • Alice to Bob: these 2 cards are red.

red1,with a red1clue, yellow5,with a yellow5clue, green1,with a green1clue, blue3,with a blue3clue, white4,with a white4clue, card back,with a clue,card back,with a clue,card back,with a clue,card back,with a clue, Alice 🡲 red2,with a red2clue,yellow4,with a yellow4clue,red3,with a red3clue,white5,with a white5clue, Bob 🡲 white4,with a white4clue,yellow1,with a yellow1clue,red4,with a red4clue,red3,with a red3clue, Cathy 🡲

  • Bob now knows his newest card is the next playable in the sequence (red2,with a red2clue,), and the other marked card is red3,with a red3clue,, red4,with a red4clue, or red5,with a red5clue, (because every marked card will be playable at some point).
Fix clue
red2,with a red2clue, yellow5,with a yellow5clue, green5,with a green5clue, blue5,with a blue5clue, white5,with a white5clue,

white1,with a white1clue,white1,with a white1clue,white2,with a white2clue,red4,with a red4clue, Bob 🡲 yellow4,with a yellow4clue,red5,with a red5clue,red3,with a red3clue,white3,with a white3clue, Cathy 🡲

  • Cathy's red3,with a red3clue, must play next.
  • The focus of a 3 clue on its own will be white3,with a white3clue, and the focus of a red clue will be red5,with a red5clue,.
  • Alice to Cathy: these 2 cards are red.

red2,with a red2clue, yellow5,with a yellow5clue, green5,with a green5clue, blue5,with a blue5clue, white5,with a white5clue, white1,with a white1clue,white1,with a white1clue,white2,with a white2clue,red4,with a red4clue, Bob 🡲 yellow4,with a yellow4clue,red5,with a red5clue,red3,with a red3clue,white3,with a white3clue, Cathy 🡲

  • Bob to Cathy: these 2 cards are 3s - this fix clue changes the focus from red5,with a red5clue, to red3,with a red3clue, (now visible).

red2,with a red2clue, yellow5,with a yellow5clue, green5,with a green5clue, blue5,with a blue5clue, white5,with a white5clue, white1,with a white1clue,white1,with a white1clue,white2,with a white2clue,red4,with a red4clue, Bob 🡲

yellow4,with a yellow4clue,red5,with a red5clue,red3,with a red3clue,white3,with a white3clue, Cathy 🡲
Prompt
red2,with a red2clue, yellow5,with a yellow5clue, green1,with a green1clue, blue3,with a blue3clue, white4,with a white4clue,

card back,with a clue,card back,with a clue,card back,with a clue,card back,with a clue, Alice 🡲 blue5,with a blue5clue,yellow4,with a yellow4clue,red3,with a red3clue,white5,with a white5clue, Bob 🡲 white2,with a white2clue,white4,with a white4clue,yellow1,with a yellow1clue,red4,with a red4clue, Cathy 🡲

  • Alice to Cathy: this card is red.

red2,with a red2clue, yellow5,with a yellow5clue, green1,with a green1clue, blue3,with a blue3clue, white4,with a white4clue, card back,with a clue,card back,with a clue,card back,with a clue,card back,with a clue, Alice 🡲 blue5,with a blue5clue,yellow4,with a yellow4clue,red3,with a red3clue,white5,with a white5clue, Bob 🡲 white2,with a white2clue,white4,with a white4clue,yellow1,with a yellow1clue,red4,with a red4clue, Cathy 🡲

  • Cathy now knows her marked card is the next playable in the sequence ⇨ red4,with a red4clue,, because red3,with a red3clue, is already marked.
  • Bob now knows his marked red card is red3,with a red3clue, and he must play it now.
Finesse
red,with a redclue, yellow,with a yellowclue, green,with a greenclue, blue,with a blueclue, white,with a whiteclue,

blue1,with a blue1clue,red5,with a red5clue,blue3,with a blue3clue,white1,with a white1clue, Bob 🡲 red5,with a red5clue,red2,with a red2clue,blue2,with a blue2clue,green2,with a green2clue, Cathy 🡲

  • Alice to Cathy: this card is blue.

red,with a redclue, yellow,with a yellowclue, green,with a greenclue, blue,with a blueclue, white,with a whiteclue, blue1,with a blue1clue,red5,with a red5clue,blue3,with a blue3clue,white1,with a white1clue, Bob 🡲 red5,with a red5clue,red2,with a red2clue,blue2,with a blue2clue,green2,with a green2clue, Cathy 🡲

  • Cathy now knows her marked card blue2,with a blue2clue, is playable.
  • Bob knows that Cathy will bomb her blue2,with a blue2clue, as blue1,with a blue1clue, unless a blue1,with a blue1clue, is played first.
  • Bob does not see the connecting blue1,with a blue1clue,, so assumes he has to play it now.
  • Bob does not have a marked card that could be blue1,with a blue1clue,, so Bob blind plays his newest unmarked card.
  • blue1,with a blue1clue, successfully plays.
Reversed finesse
red,with a redclue, yellow,with a yellowclue, green,with a greenclue, blue,with a blueclue, white,with a whiteclue,

red5,with a red5clue,red2,with a red2clue,blue2,with a blue2clue,green2,with a green2clue, Bob 🡲 blue1,with a blue1clue,red5,with a red5clue,blue3,with a blue3clue,white1,with a white1clue, Cathy 🡲

  • Alice to Bob: this card is blue.

red,with a redclue, yellow,with a yellowclue, green,with a greenclue, blue,with a blueclue, white,with a whiteclue, red5,with a red5clue,red2,with a red2clue,blue2,with a blue2clue,green2,with a green2clue, Bob 🡲 blue1,with a blue1clue,red5,with a red5clue,blue3,with a blue3clue,white1,with a white1clue, Cathy 🡲

  • Bob now knows his marked blue2,with a blue2clue, is playable.
  • Bob sees the newest, unmarked card in Cathy's hand is of the same colour and playable now. Bob assumes it is a finesse with the players in reversed order and his blue card is blue2,with a blue2clue,.
Bluff
red,with a redclue, yellow,with a yellowclue, green,with a greenclue, blue,with a blueclue, white,with a whiteclue,

white1,with a white1clue,red5,with a red5clue,blue3,with a blue3clue,white1,with a white1clue, Bob 🡲 red5,with a red5clue,red2,with a red2clue,blue2,with a blue2clue,green2,with a green2clue, Cathy 🡲

  • Alice to Cathy: this card is blue.

red,with a redclue, yellow,with a yellowclue, green,with a greenclue, blue,with a blueclue, white,with a whiteclue, white1,with a white1clue,red5,with a red5clue,blue3,with a blue3clue,white1,with a white1clue, Bob 🡲 red5,with a red5clue,red2,with a red2clue,blue2,with a blue2clue,green2,with a green2clue, Cathy 🡲

  • Cathy now knows her marked card blue2,with a blue2clue, is playable.
  • Bob does not see the connecting blue1,with a blue1clue,, so assumes he has to play it now.
  • Bob does not have a marked card that could be blue1,with a blue1clue,, so Bob blind plays his newest unmarked card.
  • white1,with a white1clue, successfully plays and the bluff is revealed.
  • Before Bob played, Cathy thought her marked card was blue1,with a blue1clue,.
  • After Bob plays, Cathy knows her marked card is another valuable blue card.

All conventions interpret Cathy's card as a valuable, not-yet-playable blue card.

Some interpretations are more stringent, also must be a 1-away-from-playable blue2,with a blue2clue,.
Long finesse
​
  • Alice to Bob: this card is a 4.

red1,with a red1clue, yellow1,with a yellow1clue, green1,with a green1clue, blue,with a blueclue, white,with a whiteclue, white1,with a white1clue,white2,with a white2clue,white4,with a white4clue,green1,with a green1clue, Bob 🡲 white3,with a white3clue,blue1,with a blue1clue,green1,with a green1clue,yellow1,with a yellow1clue, Cathy 🡲

  • Bob has been given a play clue and does not see a playable card in any hand, so Bob blind plays his draw card.
  • white1,with a white1clue, successfully plays.
  • Cathy sees that Bob has white2,with a white2clue, in front of white4,with a white4clue, but white3,with a white3clue, is missing, so Cathy knows she must play white3,with a white3clue, at the correct moment.
  • Cathy discards, Alice discards and Bob blind plays his 2nd slot white2,with a white2clue,.

red1,with a red1clue, yellow1,with a yellow1clue, green1,with a green1clue, blue,with a blueclue, white2,with a white2clue, blue5,with a blue5clue,yellow1,with a yellow1clue,white4,with a white4clue,green1,with a green1clue, Bob 🡲 yellow2,with a yellow2clue,white3,with a white3clue,blue1,with a blue1clue,green1,with a green1clue, Cathy 🡲

  • Cathy blind plays her 2nd slot white3,with a white3clue,.
  • Alice discards and Bob plays the marked white4,with a white4clue,.

Layered Finesse

Players assume:

  • BGA Finesse convention above.
  • Finessed cards can be layered behind other unrelated, but playable cards.

Examples

Layered finesse
​
  • Alice to Bob: these 2 cards are blue.

red1,with a red1clue, yellow1,with a yellow1clue, green1,with a green1clue, blue,with a blueclue, white4,with a white4clue, blue2,with a blue2clue,blue5,with a blue5clue,yellow1,with a yellow1clue,green1,with a green1clue, Bob 🡲 red2,with a red2clue,yellow2,with a yellow2clue,blue1,with a blue1clue,green1,with a green1clue, Cathy 🡲

  • Bob sees a playable blue1,with a blue1clue, in Cathy's hand, layered behind other playable cards red2,with a red2clue, and yellow2,with a yellow2clue,.
  • Bob discards and Cathy blind plays for blue1,with a blue1clue,. red2,with a red2clue, successfully plays.
  • Cathy knows this cannot be a bluff because Bob would not discard unless he sees a playable blue1,with a blue1clue, in Cathy's hand.
  • So Cathy knows she is promised blue1,with a blue1clue, and keeps playing each slot from left to right until her blue1,with a blue1clue, is played.

Definitions

Basic

Convention: Agreed set of clue, play and discard interpretations. e.g. a number clue that marks the chop card should be interpreted as a unique card save (if there is a unique card of that number).

Strategy: Plan to achieve the highest score. e.g. to mark first copies of cards.

Marked: A card touched by a clue.

Focus: The target card of a clue.

Play clue: Clue that marks a focused card to play.

Playable: A card that can be marked by a play clue.

Trash: A card that can never be played successfully.

Bomb: A play that causes a misfire.

Draw: The newest card in a hand.

Chop: The oldest, unmarked card in a hand.

Unique: The last remaining card of its rank and colour (that can be played successfully at some point).

Save: A (number) clue that marks a chop card to prevent discard.

Prompt: A play clue that causes connecting marked card(s) to play.

Intermediate

Good Touch Principle: All marked cards will eventually be played.

Splash: Additional new colour or rank information of cards that are not the focus.

Locked: A hand with all cards marked without any plays.

Reclue: A repeated clue that causes marked card(s) to play.

Fix clue: Follow-up clue required to change the focus of a play clue (and prevent a misfire).

Discard clue: Clue that marks trash card(s) to be discarded (to prevent a misfire or unwanted discard).

Stall clue: A clue given to avoid discarding.

Finesse: A play clue that causes connecting unmarked card(s) to play.

Bluff: A play clue that causes a non-connecting unmarked card to play.

Bluff seat: The player directly before the player who is bluffed.¹

Bottom-decked: When the remaining copy of a playable card is too near the bottom of the deck to achieve a perfect score.

Early save: A save clue with a known playable card in the same hand, or does not mark the chop card¹. i.e. a play clue.

Double save: Two consecutive saves in the same hand.

Double discard: Two consecutive players discard copies of the same chop card, resulting in a unique discard. A special problem, since, to each of the consecutive players, a number clue that marks their chop card does not look like a save clue (and therefore looks like a play clue).

Sarcastic discard: Discard of a duplicate marked copy of a card in another hand.

Skip / steal: When a player gives a clue that could have been given by one of the skipped players.

Scream discard: An unexpected discard to save a unique card in another hand.

Advanced

Long finesse: A finesse of three or more cards lasting more than one complete round.

Layered finesse: A finesse with unrelated playable card(s) in front of the target card(s).

Scream play: An unexpected chop play to save a unique card in another hand.

Clued misplay: A play clue that causes a misfire to prevent a unique discard in the same hand.

Positional misplay: An unexpected play that marks the same slot position in another hand to play immediately.

Gentleman's discard: Discard of a playable card to play an unmarked copy in another hand.

Play refusal: Instead of playing, a player clues or discards their chop.

Hesitation play: After a play refusal of a playable card, another player may be able to blind play an unmarked card.

Generation discard: An unexpected discard to gain 1clue tokens.

¹bluff seat is an H-Group concept. Note that this concept is unhelpful for understanding how bluffs work since outside of H-Group, it is possible to bluff any player given the right conditions.

Options

Colors

Normal: 5 colors

50 cards
Red (r) red1,with a red1clue,red1,with a red1clue,red1,with a red1clue, red2,with a red2clue,red2,with a red2clue, red3,with a red3clue,red3,with a red3clue, red4,with a red4clue,red4,with a red4clue, red5,with a red5clue,
Yellow (y) yellow1,with a yellow1clue,yellow1,with a yellow1clue,yellow1,with a yellow1clue, yellow2,with a yellow2clue,yellow2,with a yellow2clue, yellow3,with a yellow3clue,yellow3,with a yellow3clue, yellow4,with a yellow4clue,yellow4,with a yellow4clue, yellow5,with a yellow5clue,
Green (g) green1,with a green1clue,green1,with a green1clue,green1,with a green1clue, green2,with a green2clue,green2,with a green2clue, green3,with a green3clue,green3,with a green3clue, green4,with a green4clue,green4,with a green4clue, green5,with a green5clue,
Blue (b) blue1,with a blue1clue,blue1,with a blue1clue,blue1,with a blue1clue, blue2,with a blue2clue,blue2,with a blue2clue, blue3,with a blue3clue,blue3,with a blue3clue, blue4,with a blue4clue,blue4,with a blue4clue, blue5,with a blue5clue,
White (w) white1,with a white1clue,white1,with a white1clue,white1,with a white1clue, white2,with a white2clue,white2,with a white2clue, white3,with a white3clue,white3,with a white3clue, white4,with a white4clue,white4,with a white4clue, white5,with a white5clue,

Tricky: 6th color (10 cards)

  • These cards are marked by a separate multicolour clue.
+10 cards
Multicolour (m) multicolour1,with a multicolour1clue,multicolour1,with a multicolour1clue,multicolour1,with a multicolour1clue, multicolour2,with a multicolour2clue,multicolour2,with a multicolour2clue, multicolour3,with a multicolour3clue,multicolour3,with a multicolour3clue, multicolour4,with a multicolour4clue,multicolour4,with a multicolour4clue, multicolour5,with a multicolour5clue,

Difficult: 6th color (5 cards)

  • These cards are marked by a separate multicolour clue.
+5 cards
Multicolour (m) multicolour1,with a multicolour1clue, multicolour2,with a multicolour2clue, multicolour3,with a multicolour3clue, multicolour4,with a multicolour4clue, multicolour5,with a multicolour5clue,

Avalanche of Colors: Multicolor (10 multicolor)

  • These cards are marked by any colour clue.
+10 cards
Multicolour (m) multicolour1,with a multicolour1clue,multicolour1,with a multicolour1clue,multicolour1,with a multicolour1clue, multicolour2,with a multicolour2clue,multicolour2,with a multicolour2clue, multicolour3,with a multicolour3clue,multicolour3,with a multicolour3clue, multicolour4,with a multicolour4clue,multicolour4,with a multicolour4clue, multicolour5,with a multicolour5clue,

Black Powder

  • Clues cannot be given for the colour black.
  • Black cards must be played in reverse order 5 ⇨ 4 ⇨ 3 ⇨ 2 ⇨ 1.
+10 cards
Black Powder (p/k) black powder5,with a black powder5clue,black powder5,with a black powder5clue,black powder5,with a black powder5clue, black powder4,with a black powder4clue,black powder4,with a black powder4clue, black powder3,with a black powder3clue,black powder3,with a black powder3clue, black powder2,with a black powder2clue,black powder2,with a black powder2clue, black powder1,with a black powder1clue,

5 flamboyants

After playing the last card of a colour, randomly draw a bonus card and apply its effect:

  1. Gain 1clue tokens
  2. Gain 1clue tokens and recover a life.
  3. Give a colour clue.
  4. Give a number clue.
  5. Shuffle a discarded card into the deck (optional).
  6. Play a discarded card (optional).

Convention used

Name Summary References
Unspecified No convention, so don't assume any conventional moves!

Ask the table host if they will be following any convention.

N/A
Finesse BGA convention with blind-plays Finesse convention above

Hanabi "reference" for bga

Layered finesse BGA Finesse convention with additional unrelated blind-plays Layered Finesse convention above

Hanabi "reference" for bga

H-Group Comprehensive, level-based and chop-focused H-Group
Other Not listed above Other conventions below

Preset deck

Preset decks are useful for comparing teams/conventions using the same deck:

  • No (cards are shuffled)
  • Preset deck #1 of the day
  • Preset deck #2 of the day
  • Preset deck #3 of the day
  • Preset deck #4 of the day
  • Preset deck #5 of the day

Preset decks are changed at 0:00 (?) UTC

Unofficial variant

Deal
# Players 2 3 4 5
# Cards 6 5 4 3

Other conventions

Name Summary References
Logical Leftism No convention, just logic hanabi logic
Conventional Leftism Another name for Finesse hanabi logic

Postmans

Hat-guessing Clues relate to slot position, not the cards marked H-Group

Robert Kaspar

H-Group empty clues

Closest Friend Clue interpretation depends on which player gave the clue H-Group
Secret convention Each player randomly selects a secret restriction Secret variant

Secret hanabi restriction

Chat

  • It is against the rules of the game to share information that influences a player's move beyond the game actions of cluing, playing, or discarding.
  • Even a single question mark sent in chat can influence the decisions of all players. e.g. a missed finesse or some other unexpected move.
  • This is why it is best to wait until the end of the game to discuss moves.

ELO rating

Rating is visibly hidden around tables with the 7 distinct ELO skill levels:

rank Beginner rank Apprentice rank Average rank Good rank Strong rank Expert rank Master.
  1. Hanabot's ELO is generated from:
    • Final score¹
    • Average team ELO
    • Colour option²
  2. ELO change is calculated as if tied with Hanabot.

Hanabots' ELO ratings were set by an experienced player - i.e. ratings are not random or simply proportional to score or players' ELO.

¹Hanabot's ELO = 0 with scores < 18 (5 colours) and < 21 (6 colours).

²+5 card multicolor option is unrated (too dependent on draw to reflect skill).

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