
12 Chess
Mini 3x4 board duel, online
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About
Chess, cut down to twelve squares.
12 Chess is a three-minute duel on a 3x4 board. Every piece is in range from the first move, so there is no opening theory to memorise and no dead middlegame — just a fight from move one.
THE RULE THAT CHANGES EVERYTHING
Capture a piece and it becomes yours. Drop it back onto any empty square and it fights for you. Nothing ever leaves the board, so a piece you lose is a weapon you just handed your opponent.
HOW YOU WIN
Take the enemy king, or walk your own king into their back rank and survive a turn. Push a pawn to the far side and it promotes.
WAYS TO PLAY
- Ranked online matches against real players, on a live global ladder
- Private rooms: share a code and play a friend
- Three AI levels, offline, and you pick your seat — move first, move second, or let it be drawn
A note on what this is: not standard chess. It is a small perfect-information variant with drops, closer to shogi than to an eight-by-eight game. That is exactly why a match takes three minutes and still hurts to lose.
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What's New in 12 Chess
1.0.3
September 7, 2026
Fixed a "win" that arrived the moment a match was found. An opponent who leaves before sitting down no longer counts as a game — you go straight back to the queue. Fixed friend rematches never connecting after a game. The matching screen now lists every way a game ends: capture the king, reach the far row with your king and survive a turn, or outlast the opponent's clock. The same position three times is a draw.
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