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No Seki Go http://www.lifein19x19.com/viewtopic.php?f=38&t=14168 |
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Author: | luigi [ Wed Apr 12, 2017 10:01 am ] |
Post subject: | No Seki Go |
I challenged myself to make a Go variant without seki, and this is what I came up with. It differs from the regular game in the following aspects:
I think ghost placement will only be desirable on seki intersections. Other than that, games played under these rules should look much like normal games. Note that, without seki, fractional komi isn't needed, as there will be no ties. Example Whoever moves first here can capture the enemy stones. If Black moves first, they can capture by placing a ghost at either b or c and, on their next turn, a stone at a or d, respectively. If White moves first, they can capture by placing a ghost at either b or c and, on their next turn, a stone at c or b, respectively. |
Author: | hyperpape [ Wed Apr 12, 2017 10:20 am ] |
Post subject: | Re: No Seki Go |
Are ghosts only captured by placing a stone on them, or can they be captured by surrounding, like a normal stone? If the first, it seems like they'll completely change life and death. Also are you sure they can't change semeai, even without a seki in play? A ghost stone lets you remove a shared liberty from your opponent without losing it for yourself. |
Author: | luigi [ Wed Apr 12, 2017 11:42 am ] |
Post subject: | Re: No Seki Go |
hyperpape wrote: Are ghosts only captured by placing a stone on them, or can they be captured by surrounding, like a normal stone? If the first, it seems like they'll completely change life and death. Groups of ghosts can be captured by surrounding, like normal groups. hyperpape wrote: Also are you sure they can't change semeai, even without a seki in play? A ghost stone lets you remove a shared liberty from your opponent without losing it for yourself. Hmm, you're right. Here's a simple capturing race taken from Sensei's Library where ghosts make a difference: With normal rules, Black cannot win the semeai. Black must play before they can play atari at a, and by that time they are in atari themselves. In my variant, however, Black can win by answering with a ghost placement at a, which puts only White in atari. If White answers with a ghost placement at a instead, Black simply gets for free and remains ahead in the liberty count (3 vs 2). It seems this variant is less academic than I initially thought... |
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