Shareware (free download), quite strong 19x19 Go program
- SGF I believe SGF is now fully implemented for this product
- HON no longer supported
- Jan 2005 Mr 4kyu played the Jellyfish with the White stones and comfortably beat it by around 25 points. The program has quite a pleasant playing style. It doesn't seem to like ko fights too much and (as with all programs) seems to react passively to rip off plays.
- http://www.jellyfish-go.com - dead link