Hi, I am stuck on a puzzle, have all but 10 boxes figured out and can't go further. Could someone please tell me what logic they used to move forward? Thanks very much in advance! This is my first time posting a puzzle, so I don't know if I am doing it correctly!
472 983 651
185 726 934
936 154 278
2XX 37X XX6
867 549 312
3XX26X XX7
641 835 729
598 417 163
723 692 845
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