Unblock Puzzles – Improve Your IQ and Train Your Brain!

Blockudoku® is a free online logic game where you must remove all the blocks in a sudoku-like style! Take the challenge and eliminate the blocks by forming a specific number in each line and row. Don’t let your IQ get too low! Train your brain by practicing puzzles with a simple combination of numbers and colors.

The number of blocks removed increases as you get better at it. Use this game and play it for free anywhere!

Why play unblock puzzles?

This simple yet challenging game will help improve your IQ and train your brain. There are no in-app purchases.