You Collection, Middle Volume Radical: Shell (bèi) Character: gai Kangxi stroke count: 13 Page 1208, Entry 22 From Compendium of Characters (Zihui bu): Pronounced gai. As stated in Strategy of War (Binglue xun) of the Huainanzi (Huainanzi): Clear regarding the movement of the sun, moon, and stars, and the numbers of the odd and secret gai. Commentary: The odd and secret gai are the essentials of the yin and yang. Gai is pronounced gai.