Free Logic Puzzle Games

Logic puzzles are the quiet, satisfying kind: no timer pressure unless you want it, no luck involved, just you and a solvable board that always has one right answer if you reason carefully enough. This collection gathers the deduction puzzles on the site for anyone who likes to think a few steps ahead. Fill a Sudoku grid without a contradiction, clear a minefield from the numbers alone, paint a hidden picture in a nonogram, push crates onto their targets in sokoban, switch off every light, or crack a secret code in mastermind. Each one rewards patience and pattern-spotting rather than fast fingers, and every board is fair — the answer is always deducible, never a guess. They are free, run instantly in the browser with nothing to install, and save your progress locally so you can put a hard one down and come back to it. If you like the feeling of a puzzle clicking into place, start with any board below.