The ideal chessboard for a tournament would measure twenty-one inches in length and width and three quarters of an inch in width. The United States Chess Federation (USCF) states that the square size of a tournament chess board must be between 2 inches and 2.5 inches, while the height of the king must be 3.375 inches to 4.5 inches.
Chess boardsare square and generally range in size from 16 to 20 inches (40.6 to 50.8 centimeters). Add additional space for the outer edge of the board. The World Chess Federation (FIDE) recommends that the squares on the chessboard measure between two and two and a half inches.
The entire chessboard it contains will fall in the range of sixteen to twenty-one inches. In the U. S., a standard chess board has a square size of between 2 and 2.5 inches. So for a 2.5-inch square board, you could have chess pieces with a base of 1.5 to 1.87 inches.
Or for the smaller square board of 2 inches, the chess pieces must have bases of 1.2 to 1.5 inches. There is an official tournament guide for placing chess pieces on a chessboard and vice versa. It states that the diameter of the king's base must not exceed 75% of the diameter of the squares of the chessboard. For example, a king with a base diameter of 1.5 inches must have a square diameter of 2 inches. Contemporary chess uses a coordinate system known as algebraic notation to denote particular squares, making it easier to record movements. When the chessboard is ready to start a game, half of the squares are occupied by the pieces, while the 32 squares in the middle are open for play.
The ideal size of the individual checkerboard squares would be two inches long and wide each. It is generally accepted that the best-sized chessboard has a square size of 2 inches and measures about 17 to 21 inches wide, allowing good space for the piece to fit on the board and move freely during the game. A fully configured chessboard will have half of the squares occupied by the two opposing series of 16 pieces, with 32 squares available in the center of the board for playing. If you choose a chess board that is too large, the pieces may be dwarfed in the middle of the huge squares, while if you choose one that is too small, your king can look homely, and your pawns will look small and insignificant in comparison to their surroundings. The main thing to keep in mind is that there must be an identifiable relationship between the size of the board itself and the size of its squares, which contributes to its appearance, feel and functionality, as well as its overall aesthetic appeal. For a tournament board to be used legitimately, the chess set used must be complementary in size. To measure these proportions, you must consider both the size of each playing box on your chessboard where your pieces will be used and also consider your King's piece size. If you choose a board with squares of exactly the same diameter as your king's piece, it is generally accepted that it will appear too small. If you need to store your beautiful chessboard away for safekeeping, instead of having an awkward size, simply close it like a book. The image above is an example of a USCF standard table and king size that follows this 75-80% rule.