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  • $\begingroup$ Great! Is this the largest square board on which this can be done? $\endgroup$ Commented May 19, 2020 at 19:07
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    $\begingroup$ @Bernardo 9x9 and 10x10 Is there a limit? $\endgroup$ Commented May 19, 2020 at 22:12
  • $\begingroup$ @Daniel Matias Don´t know! $\endgroup$ Commented May 19, 2020 at 22:17
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    $\begingroup$ @Bernardo $2n\times 2n$, unlimited. Probably something similar for $2n+1$, but I'm done for now. $\endgroup$ Commented May 20, 2020 at 0:47