Chess players keep their games. Now Sudoku players can too.
Orbace preserves eligible personal solves as Su-Pu (数谱) — move-by-move records of placements, notes, corrections, and turning points. Replay your reasoning, learn from how the grid unfolded, or share the solve with a link.
No account required for personal play · Free account for saved records and official competition · Timer optional
Real Su-Pu replay
Two records from one solve
See how you finished — and how you arrived.
Every completed Orbace puzzle produces a Scorecard. Eligible personal solves can also be preserved as Su-Pu. Together, they show both the result and the reasoning behind it.
Scorecard · The result
Your result, clearly explained.
The Scorecard summarizes difficulty, time, mistakes, hints, steps, bonuses, and Puzzle Score. Its transparent breakdown shows where the result came from.
谱Foundation #356An example personal solve
1,050Puzzle Score
Orbace Puzzle · 正谱Clean · 净谱Foundation · 入门
08:28Time
0Mistakes
0Hints
43Steps
Base score1,000
Clean solve bonus+50
Total1,050
Su-Pu · The journey
Your reasoning, preserved.
Su-Pu records the sequence of an eligible personal solve. Replay the moment the grid opened, examine a correction, or compare one logical route with another.
数 Orbace SudokuFree daily Sudoku with replays — no account, offline.App StoreGoogle Play
00:00
Loading…
数 Orbace SudokuFree daily Sudoku with replays — no account, offline.App StoreGoogle Play
Choose your experience
Play for the moment. Compete when you are ready.
Personal play and official competition remain distinct. You decide when a puzzle should remain a quiet record and when your skill is ready for shared rules and public standing.
Calm personal play
Tea Moment and Puzzle Packs
Play at your own pace, use learning tools, receive a Scorecard, and preserve eligible solves as Su-Pu.
The Scorecard rewards completion. Su-Pu preserves reasoning. Learning turns reflection into skill, and official competition gives that skill a clear test.
01
Tea Moment
Begin with one quiet daily puzzle and receive a clear result.
Official competition uses Ranking Points, not personal Puzzle Score. Base RP reflects completion and accuracy. Live top-ten positions are provisional, and final boards publish after verification.
Orbace Sudoku is developed and published by Orbace Technologies LLC in Troy, Michigan. We build technology around a human principle: it should support the way people want to live without continually demanding more attention.