Pizza Pie Puzzle, Math ?nd Logic Brain Teaser, Christmas Gift, Logic Puzzle, Wooden Math Puzzle, Desk Puzzle, Educational Puzzle Gift

Arrange the numbered pieces such that the sum of the 2 numbers on the corner of any slice equal the sum of the 2 numbers on the corners of the opposing slice.A wonderful math and logic puzzle with 2 possible unique solutions. Packaged unsolved, but written solutions are provided.Comes with base and cover. Measures about 6.5? square in the base. Pieces and board are laser engraved for beauty and durability.Made in USA ? Creative Crafthouse. The basis for this puzzle was obtained from the book The Moscow Puzzles by Boris Kordemsky, 1971, edited by Martin Gardner. To view a video on this puzzle, please cut and paste this link:https://youtu.be/MfII6NeMWyE