Race your people
Create a room, share the code, choose the rules, and solve the same puzzle together in real time.
Multiplayer races · Solo runs
Sudoku Showdown puts every player on the same puzzle and turns a familiar logic game into a live race. Play with friends in a shared room, or settle into a focused solo run across four difficulty levels.

How it plays
Familiar logic, a clean board, and just enough competitive pressure to make every number matter.
Create a room, share the code, choose the rules, and solve the same puzzle together in real time.
Run Easy through Expert puzzles, pause privately, and keep a local record book of your best finishes.
Friendly, Standard, and Hardcore presets let each group decide how hints, mistakes, and scoring should work.
Rules library
The working rules cover multiplayer rooms, scoring, hints, mistake penalties, solo runs, and rankings.