Sudoku Variant Studio

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Analysis

Deduction log

Include routine steps

Title

Author

Rules, written for you

Extra notes

Solving

Allow trial and error when logic runs out Assume the puzzle has one solution (enables uniqueness logic) Show candidates automatically while solving Highlight the cells each step talks about

Display

Show row and column labels Flag digits that break a rule as you type Shade the cells the selection can see

Danger zone

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About

Everything runs in this page — no server, no accounts, no network. The solver reasons with named techniques first and only falls back to search when the logic runs out, so the deduction log tells you honestly how a puzzle was cracked.