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Mirror Go
Keywords: Opening, Strategy, Go term
IntroductionIn a game of mirror go, one player will always play his move at a point that "mirrors" the point that his opponent's previous move. Usually, the "mirror" is a 180-degree rotation about the tengen. The theory behind mirror go is that a move that mirrors the opponent's move can't be worse off. Also, the player who mirrors the moves can abort the mirroring process when his opponent makes a bad move, giving him an advantage. In present games, white is more likely to perform the mirroring as black is burdened by a komi. As such, some competitions forbid mirror go to exceed a certain number of moves. Below are two games that demonstrates mirror go.
Countering Mirror GoBelow shows two examples of countering mirror go. Of course, the result is absurd, but if the player who mirrors abort halfway, the other player would have succeeded in stopping the mirror.
--unkx80 Various players have tried mirror go at different times. Here is Go Seigen's attempt against Kitani Minoru in 1929. DaveSigaty How about this kind of 6-H mirror go ? (Assuming that rules allows black to place handicape stones where he desires)
Since there is no komi, the extra moku given by the tengen should give victory to black. I see no obvious way to counter the symmetry. -- MrKoala
Here we see white beating the abovementioned mirror go. White 1 captures 36 black stones, but black 2 does not capture the corresponding white stones, because they have received 2 liberties through white's capture - Andre Engels Thanks a lot, Andre Engels. I think it could also be applied to the tengen-as-first-move mirror go, couldn't it ? -- MrKoala This is a copy of the living page "Mirror Go" at Sensei's Library. (C) the Authors, published under the OpenContent License V1.0. |