Killer Sudoku
Killer Sudoku Puzzle Book (2nd Edition)
$6.99 to $9.99
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480 Easy Puzzles for focus and memory support. Large Print edition.
Quantity480 Puzzles
Layout2 Per Page
EXECUTIVE SUMMARY
Refreshing the "Sum-Grid Logic" foundation. This 480-puzzle collection is optimized for maintaining high-level concentration through moderate arithmetic challenge.
PROTOCOL BENEFITS
- Focus Anchoring: Uses cage sums as logical anchors to ground the mind in the task.
- Recall Calibration: Strengthens numerical recall for commonly occurring cage totals.
- Longevity Support: Tailored for seniors to promote daily mental stimulation.
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