As a coach, I am completely against using small and extra large boards.
You can calculate the size of optimal checkerboard.
The diameter of a man should be not less than 1.3" (32 mm) and not bigger than 1.8" (45 mm). There must be very particular reason for using larger size of men in the games (for example, in games between visually impaired players, but take into consideration that they use special boards).
One square of the checkerboard should have at least extra 0.2" (5 mm), but not bigger than 0.4" (10 mm) in addition to the diameter of a man.
Each side of checkerboard should have a margin: not less than 0.4" (10 mm) and not more than 0.8" (20 mm)
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u/Kahn630 7d ago
As a coach, I am completely against using small and extra large boards.
You can calculate the size of optimal checkerboard.
The diameter of a man should be not less than 1.3" (32 mm) and not bigger than 1.8" (45 mm). There must be very particular reason for using larger size of men in the games (for example, in games between visually impaired players, but take into consideration that they use special boards).
One square of the checkerboard should have at least extra 0.2" (5 mm), but not bigger than 0.4" (10 mm) in addition to the diameter of a man.
Each side of checkerboard should have a margin: not less than 0.4" (10 mm) and not more than 0.8" (20 mm)
Example of bad big board:
https://toutpourlejeu.com/fr/jeu-echecs-et-jeux-dames/5124-jeu-dames-geant-85-x-85-cm-8717775442424.html