Extinction Chess
Invented by: R. Wayne Schmittberger, 1985
A derivative of standard Chess where the objective is to capture all the pieces of any one type
Game hierarchy
• Game
• Generic Chess
• Generic x8
• Generic 8x8
• Chess
• Extinction Chess
Board
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece Types
| Internal Name | Name | Notation | Added By | Notes |
| King | King | K | Generic Chess | extinction loses; can castle |
| Pawn | Pawn | P | Generic Chess | can promote; en passant; extinction loses; pawn structure evaluation |
| Rook | Rook | R | Chess | extinction loses; castling partner; open file bonus |
| Bishop | Bishop | B | Chess | extinction loses; colorbinding evaluation; outpost bonus |
| Knight | Knight | N | Chess | extinction loses; outpost bonus |
| Queen | Queen | Q | Chess | extinction loses |
Game Variables
Name = "Extinction Chess"
Invented = "1985"
InventedBy = "R. Wayne Schmittberger"
NumberOfSquareColors = 2
FENFormat = "{array} {current player} {castling} {en-passant} {half-move clock} {turn number}"
FENStart = "#{Array} w #default #default 0 1"
Array = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR"
DeduplicateMoves = false
StaticExchangeEvaluation = true
Declared in Generic Chess:
StalemateResult = Draw
PromotionRule = Standard
PromotionTypes = "KQRNB"
BareKing = false
EnPassant = true
PromotingType = Pawn
CastlingType = King
Declared in Generic x8:
PawnDoubleMove = true
Declared in Generic 8x8:
Castling = Standard
Declared in Extinction Chess:
ExtinctionTypes = string
Rules
MoveCompletionDefaultRule
BasicPromotionRule
EnPassantRule
ExtinctionRule
Move50Rule
CastlingRule
RepetitionDrawRule
Evaluations
PawnStructureEvaluation
DevelopmentEvaluation
LowMaterialEvaluation
ColorbindingEvaluation
RookTypeEvaluation
OutpostEvaluation
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