US2008224398A1PendingUtilityA1
Teaching Arithmetic Operations Using Geometric Chess Symbols
Est. expiryMar 15, 2027(~0.6 yrs left)· nominal 20-yr term from priority
Inventors:Frank Ho
A63F 3/02A63F 2003/00779A63F 2003/046G09B 19/02
48
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Claims
Abstract
A chess set in which each chess symbol is respectively created according to its directional mobility permitted. The orientation indicator is diverging about a center point directed by geometric line, line segment or ray to its relevant square on a chess board.
Claims
exact text as granted — not AI-modified1 . A chess set is in the uniform of being a square with only one face showing an indicia of chess moves using the line, line segment or ray geometry concept.
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