Playing Logic puzzle on a daily basis helps to keep an active mind and players often see improvements in their overall concentration.
This Logic Puzzles book is packed with the following features: - 100 Hard Large Print Logic Puzzles ( Kakuro 20x20, Samurai Sudoku , Battleships 15x15, Hakyuu 24x24, Minesweeper 30x30, Hitori 30x30, Samurai Ji.
Playing Logic puzzle on a daily basis helps to keep an active mind and players often see improvements in their overall concentration