Daily Sudoku Challenge — 2026-05-21 (Medium) — Level 10

Warm up with the daily grid. Logic-only — no guessing required, just patience and pattern recognition.

···2··7·3
21·····6·
·····8··9
·········
····8····
·7·····8·
·9·51··7·
·2·479·3·
·41······

Solving tips

  • When stuck, restart your scan from the digit with fewest candidates.
  • Scan rows, columns, and boxes for the most-frequent digit first.
  • Pencil-mark candidates only when single-cell scanning stalls.

Home · Leaderboard · All today's puzzles