Crazyhouse
Chess family · 8x8 square grid
Basic rules
- Normal chess movement, check, checkmate, promotion, and castling rules apply.
- Captured pieces enter the capturer's pocket and may be dropped back as that player's pieces.
- Pawn drops are not legal on the first or last rank.
- Promoted pawns return to the pocket as pawns when captured.
How it ends
- Checkmate
- Timeout when the opponent has mating material
- Resignation
Sources: Lichess Crazyhouse rules