Expert Sudoku for 2026-04-07

Expert Sudoku puzzle published on 2026-04-07, with 28 given clues. Solving it requires the following techniques: Hidden Single, Naked Single, Pointing Pair, Claiming, Naked Pair, Skyscraper, Naked Quad, X-Wing, W-Wing, XY-Chain. 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.