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Tengen Square Go Puzzle
Posted: Wed Apr 25, 2018 12:20 pm
by Kirby
Stolen from Starstorm3's KGS profile info:
Go Puzzle: "The Tengen Square" If you play an 8-stone handicap game as White with Chinese rules (i.e. black can place his handicap stones wherever he likes), and your opponent places them all around tengen in a square, then he plays mirror go with you the entire game, is it possible for you to win?
$$cm1
Click Here To Show Diagram Code [go]$$cm1
Have fun.
Posted: Wed Apr 25, 2018 2:27 pm
by EdLee
Let's see...
Simply brute-force doesn't seem to work as
wins the libs race
(
always pushing from behind ):
Re:
Posted: Wed Apr 25, 2018 2:48 pm
by sorin
EdLee wrote:
Mirror instantly broken with a variety of moves (example),
after which it's
's level vs.
's.
$$W
Click Here To Show Diagram Code [go]$$W$$W
Click Here To Show Diagram Code [go]$$W$$Wm11
Click Here To Show Diagram Code [go]$$Wm11
Hm, not sure what you mean by this example - black can continue to mirror white even after the last diagram you show here...
Re: Tengen Square Go Puzzle
Posted: Wed Apr 25, 2018 6:32 pm
by tundra
For a similar situation, see this discussion at Senseis Library:
https://senseis.xmp.net/?CounteringMirr ... Discussion
...which shows (I believe) that White can break Black's mirror go strategy. (On the other hand, the moves shown are so odd (or perhaps even bad), that I doubt many players would wish to play them.)
wins the libs race
always pushing from behind ):