Tag Archives: difficult sudoku

Samurai Sudoku: Brilliant training for the brain and good for relaxation (new review on Amazon)

Here is a new review of The Way of Samurai: 101 puzzles on Amazon.com. It’s a 5/5 stars. 🙂 Concerning the training of the brain it was 4 years ago stated in the Danish engineering news that research had found that Sudoku is the best training for the brain. Later there has come another “game” […]
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