The Go Text Protocol (GTP) is a protocol used by several Go engines and Go servers for playing the board game Go on the computer. GTP version 1 has been implemented in GNU Go 3.0.0 but the protocol lacks a proper specification. The currently used version is GTP 2 which exists as a draft specification and has not been finalized. See also Computer Go Go software Internet Go servers External links GTP implementation in Ruby Go (game) software