Bill Spight recorded the game with paper and colored pencils. During the postgame commentary, the players replayed the entire game from memory, and it agreed with Spight's record. The game and commentary also exists on video tape. The game record may be downloaded in Ishi or SGF format. A second game of Environmental Go was played in July 2000.
Details are available here .
With Japanese scoring, a move on the board is worth a point less than with Chinese scoring. For a player's move, they may either play a stone on the board in the usual way, or take one of the cards. At the end of the game, a player's score is the sum of their score on the board and the cards that they have taken. The name environmental was given by Professor Elwyn Berlekamp, for reasons connected with the evaluation of games of complete information, as developed by himself and John Conway. Here is more information about Combinatorial Game Theory, and a page of links .