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minesweeper × 72logical-deduction × 40
grid-deduction × 27
combinatorics × 8
strategy × 8
probability × 8
optimization × 5
no-computers × 3
visual × 2
polyomino × 2
nonogram × 2
knowledge × 1
enigmatic-puzzle × 1
cipher × 1
crosswords × 1
seasonal × 1
solvability × 1