5 in 1 Sudoku Checkerboard Wooden Multifunctional Children Educational Puzzle Game Toy Item Type: Sudoku Checkerboard Material: Wooden How to Play Sudoku: Fill in the numbers 1-9 in the blanks so that the numbers in each row, column and grid are not repeated. We divide Sudoku into three levels so that babies can learn Sudoku and challenge themselves as they grow up. 4 Square Grid Sudoku Game: The gameplay is similar to the 9 square grid. Satisfy the number in each row, each column, and each thick line contains 1-4, without repeating it. 6 Square Grid Sudoku Game: The gameplay is similar to the 9 square grid. Satisfy the number in each row, column, and each thick line contains 1-6, without repeating. 9-square Grid Jigsaw: (3 grids wide × 3 grids high) each square is subdivided into a 9-square grid. Fill in the numbers from 1 to 9 in each small 9-square grid, so that the numbers in each column and row of the entire big 9-square grid are not repeated. The logic of Sudoku's gameplay is simple, and the number arrangement is ever-changing. Many educators think that Sudoku is a good way to exercise their brains. Flying Chess Take-off Rules: Only when the dice rolls 5 or 6, the plane can fly out of the apron. Jumping Rules: When the aircraft actively flies to a block of the same color as itself, it will jump to the next block of the same color. If the next block of the same color is connected to the fast lane, it will fly directly over the fast lane. Collision Rules: When an aircraft reaches one square in the process of traveling, if an enemy aircraft has stopped, the enemy aircraft can be rammed back to the base. End Point: When the player's plane flies to the end point, this plane will complete the mission and the player z who flies all the planes to the end point first wins. Lucky 26 Rules: Put the chess pieces marked with numbers 1-12 in the round hole on the chessboard, so that the sum of the numbers on any straight line on the chessboard is 26Size: Wooden Board: Approx. 16.1 x 16.1cm / 6.3 x 6.3in Flying Chessboard: Approx. 27 x 27cm / 10.6 x 10.6in