The Magic Tetromino Checkerboard Puzzle (IPP23) by Les Barton / Walter Hoppe
16 T tetrominoes, each printed with numbers on each square. Arrange the pieces to form a checkerboard and a magic square at the same time! Exchanged by Les at IPP 23 in Chicago.
Puzzles are made to live in people's hands. Pick one up today! See all active listings here: metagrobology : the study of puzzles
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