Chess
Black
White
Promote Pawn
♕
Queen
♖
Rook
♗
Bishop
♘
Knight
Rules & Variants
×
Board Setup
Board Dimensions
Choose between compact duels and sweeping battlegrounds.
6 × 6 — Rapid skirmish
8 × 8 — Classic setup
10 × 10 — Grand arena
12 × 12 — Colossal warzone
Core Rules
Allow Castling
Turn off to remove king rook swaps.
Allow En Passant
Control whether pawn ambush captures are legal.
Enable Threefold Repetition
Detects repeat positions as draws.
Enable Fifty-Move Rule
Draw after 50 moves without captures or pawn pushes.
Check Insufficient Material
Stops games that cannot reach checkmate.
Piece Behaviors
Pawns
Long Stride
First move may jump three squares if the path is clear.
Backstep
Retreat one square onto an empty file.
Side-Step
Slide left or right into open squares.
Diagonal Advance
Push diagonally without capturing.
Forward Capture
Allow captures straight ahead.
Rooks
Diagonal Step
Add one-square diagonal dodges.
Knight Hop
Grant rook the classic L-shape leap.
Bishops
Orthogonal Rays
Let bishops slide up, down, left, and right.
Knight Hop
Add the L-shape leap to bishops.
Knights
Diagonal Step
Allow one-square diagonal moves.
Orthogonal Step
Let knights step one square in the cross.
Queens
Knight Hop
Give the queen a jumping option.
Rook-Only
Restrict queens to orthogonal slides.
Bishop-Only
Restrict queens to diagonal slides.
Kings
Knight Hop
Let the king leap in an L-shape.
Double Step
Allow two-square lunges when the path is open.
Pawn Promotion
Show Selection Menu
Choose a piece every time a pawn promotes.
Auto-Queen
Skip the dialog and promote to a queen instantly.
Cancel
Apply Rules