LoShu

A calm number puzzle inspired by the Lo Shu magic square. Place stones, make 15, clear the board, and find your flow.

Lo Shu is a calm, satisfying number puzzle inspired by the ancient magic square of the River Luo. Place stones numbered 1 through 9 on a 3×3 board. Whenever three stones in a row, column, or diagonal add up to 15, that line returns to the river and clears from the board. Plan ahead, save one stone in the eddy for later, and keep the turtle shell from filling up. Features: • Simple 3×3 puzzle play with surprising depth • Clear lines by making 15 • Hold one stone for the right moment • Endless runs and a Daily River challenge • Optional guide glow for possible clears • Scores, records, combos, sound, and haptics • An atmospheric ink-and-river visual style
Every line is the same river.