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Gomoto's Fuseki Studies http://www.lifein19x19.com/viewtopic.php?f=15&t=15297 |
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Author: | Gomoto [ Thu Dec 07, 2017 4:54 pm ] |
Post subject: | Gomoto's Fuseki Studies |
I think an approach move on the inside, instead of taking a second corner, is a very viable strategy for white against the nirensei. I am quite surprised that there are very few pro games exploring this possibility. Early inside approach is also an interesting move in other fusekis: https://lifein19x19.com/forum/viewtopic.php?p=226233#p226233 https://lifein19x19.com/viewtopic.php?p=226263#p226263 (I am interested why it is not regarded as a good move.) Edit: It is not a bad move ![]() Variation 1: (Very playable for white in my opinion, but the position appears very seldom in pro games) Variation 2: (Also very playable for white in my opinion) |
Author: | Shaddy [ Sat Dec 09, 2017 5:50 am ] |
Post subject: | Re: Gomoto's Fuseki Studies |
I'm not sure about the best pincer location, but for the sake of argument - would you play inside approach against sanrensei? |
Author: | Gomoto [ Sat Dec 09, 2017 9:54 am ] |
Post subject: | Re: Gomoto's Fuseki Studies |
It is not like playing on the inside of the sanrensei. White gains a very playable position like this. |
Author: | Bill Spight [ Sat Dec 09, 2017 12:01 pm ] |
Post subject: | Re: Gomoto's Fuseki Studies |
Which is better, ![]() ![]() ![]() ![]() ![]() ![]() Let's apply the Spight heuristic and treat the two moves as miai. Let each player get one of the moves. Which board is better for White? Board I? Or Board II? ![]() |
Author: | Bill Spight [ Sat Dec 09, 2017 12:14 pm ] |
Post subject: | Re: Gomoto's Fuseki Studies |
AlphaGo Master style. ![]() ![]() ![]() |
Author: | Gomoto [ Sat Dec 09, 2017 2:02 pm ] |
Post subject: | Re: Gomoto's Fuseki Studies |
White can play this and be fine. Thanks for your clear question Bill: Which is better, ![]() ![]() ![]() ![]() ![]() ![]() Although I think, somebody will show a refutation here ![]() |
Author: | Uberdude [ Sat Dec 09, 2017 2:41 pm ] |
Post subject: | Re: Gomoto's Fuseki Studies |
Bill suggested an AlphaGo Master style, how about AlphaGo Zero. By kicking immediately you invite white to extend which rather obliges him to take gote or else you get a heavy group pincered, and if white tenukis the kick then black can make the good shape hane on top without adding the one point jump response too. |
Author: | Gomoto [ Sat Dec 09, 2017 4:05 pm ] |
Post subject: | Re: Gomoto's Fuseki Studies |
Thanks Uberdude, I also think the immidiate kick is the strongest response to the inside approach of the ninrensei (Edit: not according to alphago zero ![]() Some examples: Base Variation: Variation 1: Variation 2: (not the best option for white probably) Variation 3: Variation 4: But if you do not like answering the kick, white can even take the empty corner and endure the pincer: Variation 5: Or do not answer the kick at all and take the second corner and another big move. |
Author: | Shaddy [ Sat Dec 09, 2017 7:18 pm ] |
Post subject: | Re: Gomoto's Fuseki Studies |
Gomoto wrote: It is not like playing on the inside of the sanrensei. White gains a very playable position like this. I prefer Black, I think. 5 and 7 are ok opening moves, 7 maybe a bit slow, but White's side split isn't very fast and 4 for 9 is a disastrous exchange. |
Author: | Gomoto [ Sun Dec 10, 2017 2:58 am ] |
Post subject: | Re: Gomoto's Fuseki Studies |
I think it is at least even for white. Do you really not like the exchange of 4 versus 5, 7, 9 and not yet captured? ![]() |
Author: | Shaddy [ Sun Dec 10, 2017 4:36 am ] |
Post subject: | Re: Gomoto's Fuseki Studies |
Gomoto wrote: I think it is at least even for white. Do you really not like the exchange of 4 versus 5, 7, 9 and not yet captured? ![]() I might play 5 and (a little later) 7 anyway. 4 for 9 is a very bad exchange. |
Author: | Gomoto [ Tue Dec 12, 2017 4:43 pm ] |
Post subject: | Re: Gomoto's Fuseki Studies |
My move is still not refuted! ![]() Thanks to everybody who tried. ![]() ![]() ![]() |
Author: | Bill Spight [ Tue Dec 12, 2017 10:02 pm ] |
Post subject: | Re: Gomoto's Fuseki Studies |
Gomoto wrote: It is not like playing on the inside of the sanrensei. White gains a very playable position like this. I looked through Go Seigen's 10 volume 21st Century Go set. I did not find ![]() ![]() ![]() ![]() |
Author: | Bill Spight [ Tue Dec 12, 2017 10:10 pm ] |
Post subject: | Re: Gomoto's Fuseki Studies |
Gomoto wrote: White looks a bit cramped to me. ![]() |
Author: | Bill Spight [ Tue Dec 12, 2017 10:17 pm ] |
Post subject: | Re: Gomoto's Fuseki Studies |
I guess you did not think much of my heuristic. ![]() But I am curious. How do you compare these two boards? |
Author: | Gomoto [ Tue Dec 12, 2017 10:51 pm ] |
Post subject: | Re: Gomoto's Fuseki Studies |
Dear Bill, both boards are an even game in my opinion. (I understand that we do not share this opinion probably yet ![]() We did explore some variations in this thread and did not encounter a forced position with a black lead yet. I will revise my opinion if a forced line with an advantage for black is revealed. And for now I stand by my argument, the move is not refuted yet. I still have quite some fun exploring the world behind it. It is always nice to throw black out of its game plan early. Regards Gomoto |
Author: | fycj [ Wed Dec 13, 2017 9:57 am ] | ||
Post subject: | Re: Gomoto's Fuseki Studies | ||
I hate to be that guy but here is the alphago evaluation, just 5% of loss for white, it's totally playable for amateurs, i prefer black though
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Author: | Gomoto [ Wed Dec 13, 2017 11:21 am ] | ||
Post subject: | Re: Gomoto's Fuseki Studies | ||
Dear fycj, no problem here mate ![]() Even alphago zero thinks it is an even game according to your picture. I am fine with 50,1 % win rate for black. But thanks for showing the gap to proper openings. Now I can see why it is not played by pros. Edit: And after a second review, the gap is closing already ![]()
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Author: | Gomoto [ Wed Dec 13, 2017 11:44 am ] | ||
Post subject: | Re: Gomoto's Fuseki Studies | ||
And watch this ![]() Now I am really proud of myself ![]() (My old weakness, I am a little too self confident ![]() After more than 2000 years, a new playable second move for white. Increasing the size of the go universe by the factor 2. ![]()
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Author: | fycj [ Wed Dec 13, 2017 12:08 pm ] | ||
Post subject: | Re: Gomoto's Fuseki Studies | ||
There is this one too, which i find quite difficult to manage as white Alphago evaluations also are made with early 3-3 invasions in mind, if you approach the 4-4 the advantage winrate is evaluated completely different Imho i think most games are decided in the middle game, most reversals occur there for amateurs, in the opening it's good to have something you are familiar with and then move on
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