The Counting 10 Wood Puzzle | STEM Montessori Toy tic tac toe The first person to solve

The first person to solve this message will receive a $100 cash prize and a personalized engraved Enigma IV machine to commemorate the achievement

column and main diagonals add to the same number

Standard 9x9 Sudoku grid with 3x3 cells

Either way

The Counting 10 Wood Puzzle | STEM Montessori Toy tic tac toe The first person to solveThis is a puzzle designed for a Montessori group and intended for educational purposes as well as providing a meaningful puzzle challenge for any age. There are 10 pieces. Each piece is numbered on one side (#1 10) and has a grid of the same unit on the other side. There are 2 different woods used, with the odd numbered pieces being one wood and the even number pieces a different wood. Woods will vary, but I use mostly Maple, Cherry, or BeetleKill