ThinkDoku

ThinkDoku – Game is a relaxing logic puzzle where every move matters.

Your goal is simple: place the queens correctly on the board by using colors, rows, columns, and logical deduction. Each puzzle is designed to be solved through reasoning without guessing.

How to Play:
• Each board is divided into colorful regions.
• Place exactly one Queen in each region.
• Place exactly one Queen in each row and column.
• Queens cannot touch each other, including diagonally.
• Use logic and notes to determine where each Queen belongs.

Features:
• Logic-based Queen puzzles.
• Handcrafted levels with increasing difficulty.
• Simple rules that are easy to learn.
• Clean and colorful puzzle boards.
• Logical solutions without random guessing.
• No time limits — solve puzzles at your own pace.

ThinkDoku starts simple and gradually introduces more challenging boards that require careful observation and deduction.

Study the board, eliminate impossible positions, and find the correct place for every Queen.

Can you solve every ThinkDoku puzzle?