About 12x12 Queens Puzzles

A 12x12 Queens puzzle features a 12x12 grid divided into 12 colored regions. Your goal is to place exactly 12queens on the grid — one in each row, one in each column, and one in each color region. No two queens can be adjacent, including diagonally.

Large grids require advanced solving techniques like region confinement, adjacency chaining, and systematic elimination. These puzzles can take several minutes even for experienced solvers.

All 12x12 puzzles are free to play in your browser. No download or account needed. Want to try a different difficulty? Browse all grid sizes.