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Each person uses one row of numbers on the board
such as forming sums of 17 with odd numbers or combining odd and even numbers
Base frame is about 7" square and comes with full cover to protect all the pieces
An usual format for the classic shut the box game that can be played as the standard game or with variations noted below and reviewed on the video below (click the play button on the video screen and wait)
One Hour Challenge Wood Puzzle | Difficult Brain Teaser For Ages 13+ gift for math wiz Each person uses one rowCan you solve the One Hour Challenge? This eye catching and challenging wooden brain teaser puzzle will test your puzzling skills to the limit! 10 pieces make up this puzzle and your objective is to put them all back into the frame. There's only one unique solution to this brain teaser. How long will it take you (or another challenger) to fit them in the frame? This puzzle is packaged unsolved but the solution is provided. At least 4 different
