Divide this grid into 4 equivalent, nonoverlapping shapes alongside the sq. boundaries. Every form should include two of the identical letters.
There are 4 completely different options, which differ solely barely from each other.
The primary resolution proven has a form that stretches throughout seven squares on the high and that has a portion that goes down 5 squares from under the second sq. within the high row, then 4 extra squares to the suitable after which one up. The second resolution proven has a form that has six squares throughout the highest, two squares ranging from the left facet within the row just under that and a phase that extends 4 squares down from the rightmost sq. within the latter portion, then three throughout after which one up. The third resolution proven extends 5 squares throughout the highest and consists of two squares under the leftmost sq. in that row, together with a phase that goes 5 squares down from the second leftmost sq. within the high row, then three extra to the suitable after which one up. The fourth resolution proven begins with a phase that goes 5 throughout the highest and has a second portion that goes down two squares from the place to begin, then proper one sq. after which down 4, in addition to one other phase that goes three squares proper from the second sq. from the underside within the vertical portion after which up one.
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This puzzle initially appeared in Spektrum der Wissenschaft and was reproduced with permission. It was translated from the unique German model with the help of synthetic intelligence and reviewed by our editors.
