DROP Chess

Ready?

DROP

Chess Variant

Pick a rule set and a computer style.

How To Play

Pick a check rule and a computer style.

Check Rules Computer Styles

Win before 25 moves, else the game is a draw.

25 Moves Or Draw

Each turn, move one piece or drop one reserve piece on a green square.

Only kings, rooks, bishops, and knights are used.

The restricted checks option does not allow consecutive checks.

Check → No Repeat

Step 1: Check Rule

Choose how checks work.

No repeat checks unless forced.

Repeat checks are allowed.

Step 2: Computer Style

Choose your opponent.

Steady

Sharp

Win by checkmate before the 25-move limit. If move 25 ends, the game is a draw.
On each turn, either move one piece or drop one reserve piece onto a green square.
Only Kings, Rooks, Bishops, and Knights are used. No pawns or queens.
You cannot place two bishops on the same color squares.
If you check, your next turn cannot be a check unless every legal move is a check. Discovered checks are allowed.