User talk:Sammy McSam

Gamehelphanabi major revision

Overview

• Hanabi is a cooperative game. Your goal, as a team, is to build a fabulous fireworks show.
• You have to put together fireworks (red, yellow, green, blue and white) by playing each individual colour in series (1 ⇨ 2 ⇨ 3 ⇨ 4 ⇨ 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!

Setup

Deal

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

​clue 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 ​clue 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. ​clue 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 ​clue 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. ​clue 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.

Standard convention

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 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.

Save clue

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

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

Fix clue

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

Fix clue example 1

2 5 5 5 5

  

  

  

  

Alice 🡲

1

1

2

4

Bob 🡲

4

5

3

3

Cathy 🡲

• Cathy's 3 must play next.
• The focus of a 3 clue on its own will be 3 and the focus of a red     clue will be 5.
• Alice to Cathy: these 2 cards are red    .

2 5 5 5 5

  

  

  

  

Alice 🡲

1

1

2

4

Bob 🡲

4

5

3

3

Cathy 🡲

• Bob to Cathy: these 2 cards are 3s - this fix clue changes the focus from 5 to 3 (now visible).

2 5 5 5 5

  

  

  

  

Alice 🡲

1

1

2

4

Bob 🡲

3

3

4

5

3

3

Cathy 🡲

Fix clue example 2

   1            

  

  

  

  

Alice 🡲

5

4

3

5

Bob 🡲

4

4

2

2

Cathy 🡲

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

• Alice to Cathy: these 2 cards are yellow    .

   1            

  

  

  

  

Alice 🡲

5

4

3

5

Bob 🡲

4

4

2

2

Cathy 🡲

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

   1            

  

  

  

  

Alice 🡲

5

4

3

5

Bob 🡲

2

2

4

4

2

2

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.

Bad clue

• Tell a lie e.g. a clue that marks 2 as playable without the required 1.
• Mark unknown trash or duplicate cards e.g. mark    s in another hand when your hand could have a copy of that    .

Standard convention: Play clue

1 5 1 3 4

  

  

  

  

Alice 🡲

5

2

4

3

5

Bob 🡲

4

1

4

3

Cathy 🡲

• Alice to Bob: these 2 cards are red    .

1 5 1 3 4

  

  

  

  

Alice 🡲

5

2

4

3

5

Bob 🡲

4

1

4

3

Cathy 🡲

• Bob now knows his newest card is the next playable in the sequence (2), and the other marked card is 3, 4 or 5 (because every marked card will be playable at some point).

Standard convention: Prompt

2 5 1 3 4

  

  

  

  

Alice 🡲

5

5

4

3

5

Bob 🡲

2

4

1

4

Cathy 🡲

• Alice to Cathy: this card is red    .

2 5 1 3 4

  

  

  

  

Alice 🡲

5

5

4

3

5

Bob 🡲

2

4

1

4

Cathy 🡲

• Cathy now knows her marked card is the next playable in the sequence ⇨ 4, because 3 is already marked.
• Bob now knows his marked red card is 3 and he must play it now.

Finesse convention

Players assume:

• Standard convention
• Play clues may also include the newest, unmarked cards in every hand.

Finesse example

              

  

  

  

  

Alice 🡲

1

5

3

1

Bob 🡲

5

2

2

2

Cathy 🡲

• Alice to Cathy: this card is blue    .

              

  

  

  

  

Alice 🡲

1

5

3

1

Bob 🡲

5

2

2

2

Cathy 🡲

• Cathy now knows her marked card 2 is playable.
• Bob knows that Cathy will bomb her 2 as 1 unless a 1 is played first.
• Bob does not see the connecting 1, so assumes he has to play it now.
• Bob does not have a marked card that could be 1, so Bob blind plays his newest unmarked card.
• 1 successfully plays.

Reversed finesse example

              

  

  

  

  

Alice 🡲

5

2

2

2

Bob 🡲

1

5

3

1

Cathy 🡲

• Alice to Bob: this card is blue    .

              

  

  

  

  

Alice 🡲

5

2

2

2

Bob 🡲

1

5

3

1

Cathy 🡲

• Bob now knows his marked 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 2.

Bluff example

              

  

  

  

  

Alice 🡲

1

5

3

1

Bob 🡲

5

2

2

2

Cathy 🡲

• Alice to Cathy: this card is blue    .

              

  

  

  

  

Alice 🡲

1

5

3

1

Bob 🡲

5

2

2

2

Cathy 🡲

• Cathy now knows her marked card 2 is playable.
• Bob does not see the connecting 1, so assumes he has to play it now.
• Bob does not have a marked card that could be 1, so Bob blind plays his newest unmarked card.
• 1 successfully plays and the bluff is revealed.
• Before Bob played, Cathy thought her marked card was 1.
• 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 2.

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)

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 immediately.

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

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 ​clue tokens.

Options

Colors

Normal: 5 colors

50 cards

Red (r)	111	22	33	44	5
Yellow (y)	111	22	33	44	5
Green (g)	111	22	33	44	5
Blue (b)	111	22	33	44	5
White (w)	111	22	33	44	5

Tricky: 6th color (10 cards)

• These cards are marked by a separate multicolour clue.

+10 cards

Multicolour (m)	111	22	33	44	5

Difficult: 6th color (5 cards)

• These cards are marked by a separate multicolour clue.

+5 cards

Multicolour (m)	1	2	3	4	5

Avalanche of Colors: Multicolor (10 multicolor)

• These cards are marked by any colour clue.

+10 cards

Multicolour (m)	111	22	33	44	5

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)	555	44	33	22	1

5 flamboyants

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

1. Gain ​clue tokens
2. Gain ​clue 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
Standard	BGA convention without blind-plays.	Standard convention below Hanabi "reference" for bga
Finesse	BGA convention with blind-plays.	Finesse convention below Hanabi "reference" for bga
Hat-guessing	Clues relate to slot position, not the cards marked.	H-Group Robert Kaspar H-Group empty clues
Logical Leftism	No convention, just logic.	hanabi logic
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
Conventional Leftism	Same as Standard.	hanabi logic Postmans
Chop-focus	The focus of a clue that marks a chop card is always the chop card.	H-Group

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

ELO rating

1. Hanabot's ELO is generated from:
   • Final score¹
   • Average team ELO
   • Colour option²
2. ELO change is calculated as if tied with Hanabot³.

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 = 1000 with scores < 18 (5 colours) and < 21 (6 colours).

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

³ELO change with a perfect score is calculated as if Hanabot lost.

Cheating

• Players can cheat at Hanabi by sharing information via the chat user interface. This is why ranking has been disabled for this game.

Tips_hanabi major revision

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