This is the Untouchable 11 Master Challenge. The goal is to put these 11 hexominos within the board so that no two touch each other even at a corner. It has 2 solutions.
A playable app of this puzzle is now available here.
You can play the original Untouchable 11 puzzle here. The hardest version of that puzzle has 7 solutions.
$ United States
White Strong & Flexible
White Strong & Flexible
White Strong & Flexible Polished
Black Strong & Flexible
Coral Red Strong & Flexible Polished
Violet Purple Strong & Flexible Polished
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