Opulent Chess
Invented by: Greg Strong, 2005
Expanded version of Grand Chess with 10 piece types
Features four types of pieces with nearly equal value
Game hierarchy
• Game
• Generic Chess
• Generic x10
• Generic 10x10
• Grand Chess
• Opulent Chess
Board
FEN: rw6wr/clnbqkbnla/pppppppppp/10/10/10/10/PPPPPPPPPP/CLNBQKBNLA/RW6WR w - - 0 1
Piece Types
| Internal Name | Name | Notation | Added By | Notes |
| King | King | K | Generic Chess | royal |
| Pawn | Pawn | P | Generic Chess | en passant; can promote by replacement; pawn structure evaluation |
| Queen | Queen | Q | Grand Chess | trap king on back rank bonus |
| Rook | Rook | R | Grand Chess | open file bonus; trap king on back rank bonus |
| Bishop | Bishop | B | Grand Chess | colorbinding evaluation; outpost bonus |
| Knight* | Knight | N | Grand Chess | outpost bonus |
| Archbishop | Archbishop | A | Grand Chess | |
| Chancellor | Chancellor | C | Grand Chess | open file bonus; trap king on back rank bonus; trap king on back rank bonus |
| Wizard | Wizard | W | Opulent Chess | colorbinding evaluation |
| Lion | Lion | L | Opulent Chess | |
* indicates the internal type has been modified
Game Variables
Name = "Opulent Chess"
Invented = "2005"
InventedBy = "Greg Strong"
NumberOfSquareColors = 2
FENFormat = "{array} {current player} {castling} {en-passant} {half-move clock} {turn number}"
FENStart = "#{Array} w #default #default 0 1"
Array = "rw6wr/clnbqkbnla/pppppppppp/10/10/10/10/PPPPPPPPPP/CLNBQKBNLA/RW6WR"
DeduplicateMoves = false
StaticExchangeEvaluation = true
Declared in Generic Chess:
StalemateResult = Draw
PromotionRule = Grand
PromotionTypes = ""
BareKing = false
EnPassant = true
PromotingType = Pawn
CastlingType = King
Declared in Generic x10:
PawnMultipleMove = Grand
Declared in Generic 10x10:
Castling = None
Rules
MoveCompletionDefaultRule
EnPassantRule
CheckmateRule
Move50Rule
PromoteByReplacementRule
RepetitionDrawRule
Evaluations
PawnStructureEvaluation
LowMaterialEvaluation
ColorbindingEvaluation
RookTypeEvaluation
OutpostEvaluation
GrandChessDevelopmentEvaluation
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