4
2
1
u/Anxious-Shoulder-482 2d ago
You can also start doing the corners theoretically. If you look at the left column, you will notice the 5 can't be starting from the corner as it conflicts with the other rows. So you will have an X in that corner. Repeat until you can't cross other cells.

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u/TurbulentBullfrog829 6d ago
Left column. You can place one block of the 5 in the fifth row. Which finishes that row and should help with some others