Queens Game

Place queens on a colored grid where each row, column, and color region must have exactly one queen. Queens cannot touch each other, even diagonally. Inspired by LinkedIn's daily puzzle.

Time: 0:00
Queens placed: 0/6
Moves: 0

Tap a cell to cycle empty, X, queen. One queen per row, column, and color region; queens can't touch, even diagonally. Keys: arrows move, Space cycles, Enter places a queen, X marks.

How to Play Queens

Queens is a constraint satisfaction puzzle where you must place N queens on an N×N colored grid following specific rules.

Game Rules

Each row must contain exactly one queen
Each column must contain exactly one queen
Each color region must contain exactly one queen
Queens cannot touch each other horizontally, vertically, or diagonally

Controls

Tap/Click: Cycle through states: Empty X Queen Empty
Arrow keys: Navigate between cells
Space: Cycle cell state (same as tap)
Enter: Toggle queen directly
X key: Toggle X mark directly

Difficulty Levels

Easy (5×5): 5 queens, 5 color regions
Medium (6×6): 6 queens, 6 color regions
Hard (8×8): 8 queens, 8 color regions
Expert (9×9): 9 queens, 9 color regions

Solving Strategy

Start constrained: Look for rows, columns, or regions with limited placement options
Use X marks: Mark cells that cannot have queens to narrow down possibilities
No guessing: Every puzzle has a unique solution that can be found through logic alone