Choose Difficulty
Pick any mode below and start a new puzzle — no unlocks, no level grind.
Easy
Warm up your mind
About 40 given cells — great for beginners.
PlayMedium
The perfect balance
About 32 given cells — steady logical flow.
PlayHard
Focus and patience
About 26 given cells — sharper deduction.
PlayExpert
Master your technique
About 22 given cells — advanced solving patterns.
PlayMaster
Peak challenge mode
Minimal givens for deep, uninterrupted focus.
PlayHell Mode
Killer Sudoku, beyond classic limits
Killer Sudoku with cage sums and fewer givens, across five hell tiers — simple through master. Pick your pain on the hell hub.