Today's Expert Sudoku puzzle

Expert Sudoku puzzle published on 2026-07-21, with 27 given clues. Solving it requires the following techniques: Hidden Single, Naked Single, Pointing Pair, XY-Wing, Claiming, Skyscraper, XYZ-Wing, W-Wing, XY-Chain, Discontinuous Nice Loop, 2-String Kite, Finned X-Wing, Naked Triple, Unique Rectangle. 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.