Great game. I would however ask you to disable the number highlighting when in agreement with the solution. It is too tempting to just try the combinations. Please make this a real logics game and remove the highlighting or always highlight when the sequence agrees with the condition from row/column.
I was trying for hours to do lvl 20 on perfect/fast until i accidentally found out you can use the winch to move the tower. Maybe you should add a hint or something. Got all the achievements now
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