Intermediate Sudoku for 2026-05-27

Intermediate Sudoku puzzle published on 2026-05-27, with 30 given clues. Solving it requires the following techniques: Hidden Single, Naked Quad, Hidden Quad, Pointing Pair, Naked Single. Every puzzle on this site is generated by Dancing Links and then verified by a tiered human-style solver, so it is guaranteed solvable with logic alone – no guessing or backtracking.