1. 13

Very simple, but cute for beginners.

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  2. 3

    I think there’s more than 2 other solutions to turn. Any permutation with all cycles of length two or four should work. So NWES satisfies the properties, as does NSWE and NE/WS.

    1. 1

      Yes. Cute isn’t it? If we apply turn N times I guess any divisor of 4 will do.