I don't know about favorites, but I think it's kind of amazing that
can be the best move (T5 also works, but nothing else does). 
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| What's your favorite tesuji? http://www.lifein19x19.com/viewtopic.php?f=10&t=18113 |
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| Author: | Knotwilg [ Thu Mar 25, 2021 5:43 am ] |
| Post subject: | What's your favorite tesuji? |
I'll show mine |
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| Author: | bogiesan [ Thu Mar 25, 2021 6:55 am ] |
| Post subject: | Re: What's your favorite tesuji? |
Any snapback, however small. Monkey jump & big monkey. Cranes nest, which I can only spot in its more simple form. Any situations that are more complex are usually the result of reading out a formation with which I have previous experience; not so much tesuji as patience and careful setup. A good thrill. |
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| Author: | Boidhre [ Thu Mar 25, 2021 7:38 am ] |
| Post subject: | Re: What's your favorite tesuji? |
I've always really liked ladders. The two that gave me the biggest "oh, that's cute" moments when I came across them first were the loose ladder and the double ladder. Not for being very complex or anything, I just really enjoyed the logic of them. Oiotoshi (Connect and die) was another like this. |
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| Author: | Harleqin [ Thu Mar 25, 2021 2:42 pm ] |
| Post subject: | Re: What's your favorite tesuji? |
I like tesuji that show me that there is more to Go than counting liberties, like the raccoon's belly, and playing to get a hanezeki. |
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| Author: | gowan [ Thu Mar 25, 2021 3:58 pm ] |
| Post subject: | Re: What's your favorite tesuji? |
I like, among the simple ones, the warikomi. |
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| Author: | Uberdude [ Thu Mar 25, 2021 4:52 pm ] |
| Post subject: | Re: What's your favorite tesuji? |
Knotwilg, you should like this problem then: https://www.lifein19x19.com/viewtopic.php?f=15&t=5099 As for my favourite tesuji, patting the tanuki's belly is probably my favourite standard one. Although I have played it in real games a few times I've yet to actually win because of it: once against Nick Krempel it was actually bad and simple outside block worked better and didn't get squeezed, another time against Junnan Jiang (the year he won British championship) it was a fight winning tesuji (which I had spotted before starting the fight, yay!) so I was then leading but messed up later. Other shortlisted ones are the double ladder breaker and under the stones (a favourite occurrence being all 3 of us in a London Open rengo finding it). And for famous historical tesujis, Shuei's running out of a net. |
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| Author: | Kirby [ Thu Mar 25, 2021 6:02 pm ] |
| Post subject: | Re: What's your favorite tesuji? |
Uberdude wrote: As for my favourite tesuji, patting the tanuki's belly is probably my favourite standard one. I like this one, too. I have memories of trying to solve a go problem where this was the solution - I hadn't seen it before. I spent a really long time before finding it. I kept reading the same sequences, and skipping this tesuji, since I kept overlooking it. Generally speaking, I like tesuji that are surprising to me more than standard ones. Particularly if it helps in making some sort of comeback from a lost game. |
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| Author: | lightvector [ Sat Mar 27, 2021 5:44 am ] |
| Post subject: | Re: What's your favorite tesuji? |
I don't know about favorites, but I think it's kind of amazing that can be the best move (T5 also works, but nothing else does). |
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| Author: | Joaz Banbeck [ Sat Mar 27, 2021 8:21 am ] |
| Post subject: | Re: What's your favorite tesuji? |
*cough* "Do you smell smoke?" |
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| Author: | jlt [ Sat Mar 27, 2021 9:45 am ] |
| Post subject: | Re: What's your favorite tesuji? |
Strange indeed. White can't connect the ko immediately, and if White ever plays at S17 or T17 then Black takes the ko, White is in atari and has no ko threats, so loses the ko. In addition, if needed Black had real ko threats at B17 or M12 (atari). |
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| Author: | lightvector [ Sat Mar 27, 2021 11:06 am ] |
| Post subject: | Re: What's your favorite tesuji? |
Black absolutely needs the real ko threats at B17 and M12. If black didn't have them, then white would win easily. Basically, why must black specifically play at S5 or T5, and no other move wins? Because even though the move is not itself a threat, it threatens a future ko threat, and that's what's needed in this situation. If black plays S5, then: * White protects B17 or M12. * Black takes the ko. * White protects the other of B17 or M12. * Black now has T5 as one final ko threat, so black escalates the ko to be for white's whole group, with S17 or T17. * White takes the ko. * Black plays T5, white responds. * Black takes the ko. White has no threats, so white loses the whole group, which is enough for black to win. If black were to play a dame or any other move (including B17 or M12) instead, then: * White protects B17 or M12. * Black takes the ko. * White protects the other of B17 or M12. * Black has no threats left, so black can only connect the upper right ko, getting a seki, which is not enough to win. ---------------- So when there is a thousand year ko involved, you may want to play moves that are dead in gote in the opponent's territory, simply because in the *future* it makes a threat. And you want to play moves in your own territory that add extra defense to groups that are already alive, simply to reduce your opponent's future ko threats. |
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| Author: | lightvector [ Sat Mar 27, 2021 11:24 am ] |
| Post subject: | Re: What's your favorite tesuji? |
Extra details: |
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| Author: | jlt [ Sat Mar 27, 2021 11:35 am ] |
| Post subject: | Re: What's your favorite tesuji? |
Thanks for the detailed explanations. I didn't realize that in the sequence "If black were to play a dame or any other move (...)", if Black doesn't want to connect the ko nor to play S17/T17, White can leave the ko unsettled as well and the position becomes a seki. |
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| Author: | bernds [ Sat Mar 27, 2021 6:11 pm ] |
| Post subject: | Re: What's your favorite tesuji? |
Here are two problem positions I rather like. Black to play. The tombstone squeeze is another favourite. |
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