@Tim I found this problem in puzzle 292 yesterday as well. We will disable it and put the same puzzle back in with all the correct solutions. (like for example puzzle 361, where now both 27-21 and 31-…

Only 7-12 is accepted as the first move, but 27-32 (and then 7-12) wins in the same way.

I have understood this: memorizing the first 10 positions (the squares from 1 to 10) it is easy to improve by counting, for example, from the square number 1, +10 to obtain the square number 11; + 20 …