Hardest Sudoku

按难度分类的数独谜题

下面每道谜题都按 SE 等级评定。打开任意一道即可查看盘面，并在浏览器里免费游玩。

By The Hardest Sudoku Team · Last updated

TL;DR

500 道已评级谜题，按 SE 档位整理 — 从只用唯一数的热身题到魔王级的链。

SE grade 1 — The gentlest puzzles. Solvable end-to-end by spotting naked and hidden singles — no candidate bookkeeping required.

此档位还有 27 道。

SE grade 2 — Easy puzzles that still resolve through singles, but you may need to scan more carefully before the next placement appears.

此档位还有 57 道。

SE grade 3 — Intermediate. Pairs and locked candidates (pointing/claiming) start to matter — you eliminate candidates rather than place values directly.

此档位还有 92 道。

SE grade 5 — Hard. Basic fish (X-Wing) and consistent candidate elimination across rows and columns become the bread and butter.

此档位还有 92 道。

SE grade 7 — Expert. Wings (XY-Wing) and larger fish (Swordfish) appear; progress often depends on chaining one elimination into the next.

此档位还有 92 道。

SE grade 8 — Diabolical. Simple techniques run dry early; you lean on forcing chains and careful candidate logic to break the puzzle open.

此档位还有 81 道。

SE grade 11 — Monster territory. These puzzles have no easy entry point and demand long forcing chains end to end — the home of AI Escargot, Golden Nugget and Platinum Blonde.

此档位还有 3 道。