Tic Tac Toe FTW
Inner product of two vectors
Who knows the last digit of pi?
Check that number is whole number
Divisible by n, prime divisors (including powers)
Lights Out 11 - 5x5, with wrapping, x moves
Lights Out 3 - 5x5, 6 moves
Lights Out 5 - 5x5, 10 moves
Combined Ages 4 - Non-symmetric with multiples, n ≥ 3
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