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Hashiwokakero (also known as hashi, bridges, chopsticks or Ai-Ki-Ai) is a type of logic puzzle origi

Magnets is a logic puzzle that's appeared in various guises, both in puzzle magazines and on the

Mathdoku (also known as KenDoku®, Calcudoku or KenKen®) is a type of arithmetic/logic puzzle invente

Mathdoku (also known as KenDoku, Calcudoku or KenKen®) is a type of arithmetic/logic puzzle invented

Planarity is a simple but highly addictive puzzle based on a tangled series of inter-connected dots.

Planarity is a puzzle based on a concept by Mary Radcliffe at Western Michigan University. The playe

Slant (aka Slalom or gokigen naname) is a binary-determination logic puzzle which, like Sudoku, was

Slant is a binary-determination logic puzzle and like Sudoku was made popular by Japanese puzzle com

Sudoku is the classic logic-based, combinatorial number-placement puzzle. (Tongue twister, right)? S

Sudoku is a logic-based, combinatorial number-placement puzzle. The puzzle was popularized in 1986 b