How do you pronounce 고누 ? It's the collective name of these little Korean board games.

About Jul-Gonu, from BoardGameGeek:

Jul-Gonu is played on an 4x4 grid (3x3 board on the points). Each player starts with 4 stones on the first row. A stone moves to an orthogonal adjacent empty cell. Capture is custodian -- if a stone after moving has some enemy stones between itself and another friendly stone then those stones are captured. A player loses if he has just one stone or is unable to move.