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  • $\begingroup$ Why the question marks? $\endgroup$
    – hexomino
    Commented Mar 18, 2021 at 10:56
  • $\begingroup$ Because I need to show that the snake passes by those squares $\endgroup$ Commented Mar 18, 2021 at 11:45
  • 1
    $\begingroup$ Ah, I see, so ? means >0. But do you need those? It looks like from the nearby 3 and 0 that that will have to be true. $\endgroup$
    – hexomino
    Commented Mar 18, 2021 at 11:50
  • $\begingroup$ I needed them for a good title, as in a ? couple kissing each other $\endgroup$ Commented Mar 18, 2021 at 11:51
  • $\begingroup$ Oh, okay, fair enough. $\endgroup$
    – hexomino
    Commented Mar 18, 2021 at 11:52