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Chess960

#12608BGG ↗

1996 · 2-2 players · 180min · weight 3.32 · 194 ratings

v2 v3 v4 wide v4 deep

BGG raw

ID
12608
Name
Chess960
Year
1996
Rank
7590
Min players
2
Max players
2
Playing time
180
Min playtime
10
Max playtime
180
Avg weight
3.3214
Num weights
28
Bayes avg
5.64601
Average
7.67325
Users rated
194
Num owned
145
Wanting
1
Wishing
23
Num comments
79
Fetched at
Wed Apr 29 2026 05:34:56 GMT+0000 (Coordinated Universal Time)
Mechanisms (5)
Grid MovementPattern MovementSquare GridStatic CaptureVariable Set-up
Categories (1)
Abstract Strategy
Description (868 chars)

Like the standard game of chess, but the pieces behind the pawns on the white side are arranged at random, with the proviso that bishops must end up on opposite colors, and the king is somewhere between the two rooks. The black pieces are lined up to mirror the white. This results in 960 different possible positions, hence the name Chess960: 4 possible white bishop locations × 4 possible black bishop locations × 6 possible queen locations × 5 × 4 / 2 = 10 possible knight arrangements = 960 possible starting setups The game was proposed by Grand Master and former World Champion Bobby Fischer, to remove the need to memorize openings. He originally called it Fischerandom, and later changed the name to Fischer Random Chess, which is also frequently used. The name Chess960 was proposed by a FIDE committee and is now the official one.

LLM v2 (wide)

Not yet enriched at v2 (wide pass).

LLM v3 (deep)

Not yet enriched at v3 (deep pass).

LLM v4 wide (controlled-vocab primitives)

Not yet enriched at v4 (wide pass).

LLM v4 deep (archetype fit)

Not in the v4 deep-pass top-20% slice.