RUBPIX

The original puzzle that the authors offer you is found from time to time on gaming sites in various interpretations. In this case, your task is to build squares in the right places according to the model indicated at the top in the center.

To move a square, just click on it with the mouse and drag it without releasing the button. You can drag it only one position: up, down, right, or left, and the entire row containing this square is shifted. Outwardly, everything looks simple, if not for one nuance. Single-color squares tend to stick to each other if they happen to be next to each other.