Fischer Random Chess
Invented by: Bobby Fischer, 1996
A derivative of standard Chess where the opening position is randomized to eliminate the memorization of openings
Game hierarchy
• Game
• Generic Chess
• Generic x8
• Generic 8x8
• Chess
• Fischer Random Chess
Board
This game has a randomized starting array so this diagram shows only one example
FEN: rnkbbrqn/pppppppp/8/8/8/8/PPPPPPPP/RNKBBRQN w AFaf - 0 1
Piece Types
| Internal Name | Name | Notation | Added By | Notes |
| King | King | K | Generic Chess | royal; can castle |
| Pawn | Pawn | P | Generic Chess | can promote; en passant; pawn structure evaluation |
| Rook | Rook | R | Chess | castling partner; open file bonus; trap king on back rank bonus |
| Bishop | Bishop | B | Chess | colorbinding evaluation; outpost bonus |
| Knight | Knight | N | Chess | outpost bonus |
| Queen | Queen | Q | Chess | trap king on back rank bonus |
Game Variables
Name = "Fischer Random Chess"
Invented = "1996"
InventedBy = "Bobby Fischer"
NumberOfSquareColors = 2
FENFormat = "{array} {current player} {castling} {en-passant} {half-move clock} {turn number}"
FENStart = "#{Array} w #default #default 0 1"
Array = dynamic
DeduplicateMoves = false
StaticExchangeEvaluation = true
Declared in Generic Chess:
StalemateResult = Draw
PromotionRule = Standard
PromotionTypes = "QRNB"
BareKing = false
EnPassant = true
PromotingType = Pawn
CastlingType = King
Declared in Generic x8:
PawnDoubleMove = true
Declared in Generic 8x8:
Castling = FRC
Declared in Fischer Random Chess:
PositionNumber = integer between 1 and 960
Rules
MoveCompletionDefaultRule
BasicPromotionRule
EnPassantRule
CheckmateRule
Move50Rule
CastlingRule
RepetitionDrawRule
Evaluations
PawnStructureEvaluation
DevelopmentEvaluation
LowMaterialEvaluation
ColorbindingEvaluation
RookTypeEvaluation
OutpostEvaluation
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