I'm Not a Chess Saint

Hu Sanyu shares his body with Liu Sheng, a chess sage from a thousand years ago. Their deal is simple: Liu Sheng teaches him chess, and Hu lets Liu Sheng make one more move. But a vicious chess soul also lurks inside Hu Sanyu. If it loses control, his opponent’s chess skills will be wiped out, and every chess player within a hundred paces will have their cultivation reduced to nothing.