Hayauchi Super Igo

Released in 1991 by SETA, Hayauchi Super Igo is a Go title for the NES built around fast-paced competitive play. The cartridge houses a dedicated SETA co-processor chip to boost computational strength, enabling a high-difficulty AI opponent capable of challenging experienced players. Board sizes of 9x9, 13x13, and the standard 19x19 are all available, with options for handicap stones, timed matches, and game replay. The interface is clean and efficient — the D-pad positions the cursor while the A button places stones — and thinking animations with audio cues keep play engaging. One of the few genuinely hardcore board-game titles on the Famicom platform, it suits both seasoned Go players studying openings and beginners building fundamentals.