Number games

Number games sharpen mental arithmetic and pattern recognition without ever feeling like homework. Here you will find Sudoku with a worldwide daily board and four difficulties, the classic Number Slide 15-puzzle with verified-solvable shuffles, FluxMerge's dice-merging chains, and TenSum's sum-to-ten hunts.

All four run instantly in your browser, free, with your best scores and streaks saved locally. Start easy, chase pars and perfect clears, and climb the Skorven leaderboard.