Queens
Place one queen per row, column and color region so none touch.
Place exactly one queen in every row, column, and colored region.
Grid & deduction games
Logic Puzzles
Queens, Tango, Zip, Mini Sudoku, and Patches are pure logic puzzles — no wordplay required. Pick a game below to play dailies, level tracks, or random boards with full solutions.
Logic puzzle games
Grid-based deduction puzzles — each with archives, level tracks, demos, and how-to-play guides.
Tango
Fill the grid with suns and moons, balanced and never three in a row.
Fill every cell with a sun or a moon so the grid is balanced and consistent.
Zip
Draw one path through every cell, hitting the numbers 1..N in order.
Draw one continuous path that visits every cell exactly once.
Mini Sudoku
Fill the 6x6 grid so every row, column and box holds 1-6 once.
Fill the 6×6 grid so every row, column, and box is complete.
Patches
Tile the grid with rectangles, one per numbered clue, no gaps or overlaps.
Cover the entire grid with squares and rectangles, one per numbered clue.
Related pages
More ways to browse, learn, and play.
FAQ
Logic Puzzles FAQ
Common questions about playing and browsing.
Logic puzzles use deduction on a grid or board — Queens, Tango, Zip, Mini Sudoku, and Patches. Word games like Crossclimb and Pinpoint have their own word puzzle archive.