Sudoku Easy to Hard with Full Solutions (Kindle Scribe Only)
Kindle电子书
US$0.99
DREAMBRAIN UCHQUN Author A brain game like sudoku, as well as crossword puzzles, taking classes, reading, and writing, can help delay dementia and Alzheimer's disease and protect the brain from decline. ... And, says Snyder, while it offers good exercise and stimulation for the brain, sudoku can actually be very relaxing.
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