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The Grid

The Set: 4 pentiles

The Set: 1-3 pentiles

The Idea
The 17 pentiles are one over the number to fill a diamondshape (actually the circumfence is a square). Thus one piece must be left out, and only these three comply. The remaining 16 fill the shape in many ways, and these are three of them.


Here are two 5-hex solutions using the 1-3 pentiles set .

There are two, and only two, 4-hex solutions using the 3 pentiles set and an additional single pentile.

Obviously we wouldn't deny you a '22 hexes' solution with the full 1-4 set.

Pentiles-1 © MindSports.