Alexandre Muñiz 🌻
@two_star
I like mathy puzzles, Irish and morris dancing, choral singing, science fiction & fantasy. Fediverse: @[email protected]
ID: 24641084
http://puzzlezapper.com/aom/ 16-03-2009 03:15:48
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There are 12 polyominoes with cells marked with positive integers that sum to 4. Here they overlap in a 3×4 grid so each cell of the grid has numbers that also sum to 4. (Hat tip to Bryce Herdt, who found the first solution to this. I found another that allows a "nice" drawing.)