Seven boards. No account, no download, no timer you didn't ask for.
Chess, go, sudoku, mahjong, gomoku, checkers and 2048 — each one rebuilt to play properly on a phone and a desktop, with an opponent that actually thinks.
The library
Every game runs entirely in your browser. Progress, best times and settings stay on your own device.
Chess
Full rules, a thinking opponent, and a move list you can read back.
Sudoku
Every puzzle generated fresh, checked for a single solution, with hints that teach.
Go
Captures, ko, passing and area scoring on 9×9, 13×13 or 19×19.
Mahjong Solitaire
The 144-tile turtle, dealt so it can always be cleared.
Gomoku
Five in a row on 15×15, against an opponent that answers threats.
Checkers
Compulsory captures, jump chains and kings, played properly.
2048
Slide, merge, and keep the big tile in the corner.
Learn the games properly
Ten written guides for each game, from the first move to the habits that decide close positions.