premove storm

Your opponent has premoved — committed their next move before seeing yours. It will play instantly after your move if it's still legal, and be cancelled if it isn't. Their premove is a promise they can't take back: punish it.

One clock, one move each, and puzzles waiting — you keep going until time runs out. They get harder as you go, in a different order every run. Wrong answers cost 10 seconds; speed is the whole skill.

start run untimed — no clock

Anonymous solve results are collected to tune puzzle difficulty.

run again