Binary puzzles, also known as Takuzu, are not Sudoku
The grid can be a square of any even size, such as 8x8, 10x10, 12x12, 14x14 and so on.
And you use only the binary digits 0 and 1 to solve it
The rules are simple:

• there can be at most two 0s next to one another; same for the 1s. So, 00 is Ok, but 111 is not ok. Of course 010 or 101 are fine
• in each row and in each column half of the digits must be 1s and a half must be 0s
• any two rows can't be completely the same.
• similarly, two columns can't be the same.

The book contains 200 puzzles in various sizes:

• 20 puzzles in size 6x6
• 30 puzzles in size 8x8
• 100 puzzles in size 10x10
• 30 puzzles in size 12x12
• 20 puzzles in size 14x14

They are of various difficulties, from EASY to INSANE, but don't worry, there are also detailed instructions with explanations of solving techniques. Ready? ENJOY

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