Difficult tpsmith-serious Group Puzzle

The grouppuzzles.com Difficult tpsmith-serious puzzle for Thursday December 31, 2020

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Place each element of the group (0 1 2 3 4 5 6 7 8 9 A B) exactly once in each row, each column, each 4x3 rectangle, each eye, and the elements that make up the mouth.

Thursday December 31, 2020   http://www.grouppuzzles.com