Hi, do you like puzzles?

This, at first glance, a simple puzzle will make you think hard.
Only three levels of difficulty, but not so simple: if you overcome the first very quickly, then the second will have to strain your brains.

The mechanics are simple: click on the cell - it changes its state to the opposite. At the beginning of the game, all cells have a value of "0". The goal of the game is to make the value "1" in all cells. There is simply nowhere else, though there is one “But” - when you change the state of a cell, the cells adjacent to it also change.

OK, you win. Well done. But your friend did it two moves faster, mess. Try again, maybe you can set an absolute record. Good luck.




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