Community variant
Grand Two Kings Chess v1.2
A Game with 2 kings,Protect your 2 kings.
Board is 10x10.
This is a user-catalogued casual variant. Technical details such as board size, FEN, pieces, and hand rules are defined in the Fairy-Stockfish variants.ini block below.
Generated rule overview
This variant inherits its base rules from `chess` and overrides the settings shown below.
Board and setup
Pieces and movement
- The piece set used on the board is: commoner (k), queen (q), rook (r), bishop (b) and pawn (p).
Move rules
- Pawn double-step moves are enabled.
Promotion
- Promotions are available in the configured promotion zones. The the promotion region for White is squares a10, b10, c10, d10, e10, f10, g10, h10, i10 and j10 and the promotion region for Black is squares a1, b1, c1, d1, e1, f1, g1, h1, i1 and j1.
- The pieces that can promote are: pawn (p).
- Promotion choices are both sides: bishop (b), rook (r) and queen (q).
Winning and losing
- An extinction rule is active: reaching 0 remaining piece(s) k causes a loss for the side to move.
Fairy-Stockfish rules
[twokings10x10_v1_2:chess]
maxFile = 10
maxRank = 10
king = -
commoner = k
extinctionValue = loss
extinctionPseudoRoyal = true
extinctionPieceTypes = k
extinctionPieceCount = 0
promotionPieceTypes = brq
promotionRegionWhite = a10 b10 c10 d10 e10 f10 g10 h10 i10 j10
promotionRegionBlack = a1 b1 c1 d1 e1 f1 g1 h1 i1 j1
doubleStep = true
doubleStepRegionWhite = *2
doubleStepRegionBlack = *9
startFen = rbkbqqbkbr/pppppppppp/10/10/10/10/10/10/PPPPPPPPPP/RBKBQQBKBR w - - 0 1