Your move is exactly the one I played in my game so we both have the same wrong intuition, and/or we are both reluctant to cut and leave the cutting stones for later. Let's examine the continuation.
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| Shapes to remember (SDK level) http://www.lifein19x19.com/viewtopic.php?f=48&t=16894 |
Page 9 of 9 |
| Author: | jlt [ Thu Apr 06, 2023 12:11 pm ] |
| Post subject: | Re: Shapes to remember (SDK level) |
Your move is exactly the one I played in my game so we both have the same wrong intuition, and/or we are both reluctant to cut and leave the cutting stones for later. Let's examine the continuation. |
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| Author: | EricBackus [ Thu Apr 06, 2023 6:25 pm ] |
| Post subject: | Re: Shapes to remember (SDK level) |
jlt wrote: Your move is exactly the one I played in my game so we both have the same wrong intuition, and/or we are both reluctant to cut and leave the cutting stones for later. Let's examine the continuation. What you say must be correct. But I still wonder about  at b. You say White will play c and that will help invade the bottom. But on the other hand, maybe that would be White playing too close to strength?
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| Author: | jlt [ Thu Apr 06, 2023 10:57 pm ] |
| Post subject: | Re: Shapes to remember (SDK level) |
With at b, here is a simple continuation. Black protects his corner. White is not alive yet but  will help and may be sacrificed later.Another possibility is this White gets the corner and ,  and  have played lightly inside Black's sphere of influence. Some of these stones may be sacrificed later.
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| Author: | gennan [ Fri Apr 07, 2023 3:11 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
jlt wrote: Position #81, Black to play, find the next 3-4 moves. Nothing complicated, but not on my radar. Answer The hidden answer was actually my first thought, with white losing sente for a somewhat unclear gain in central influence. I'd assume that this isn't good enough for white to give up sente this early in the game, so white shouldn't even hane at F5 at this moment. The game is still in the early opening, so I feel white should have played elsewhere instead, for example approach a black 4-4 corner, 3-3 invade either corner or some other normal opening move. I wonder how the situation in the lower left before white F5 arose. To me it already looks beneficial for black, not like en even result (joseki). I think white let himself be tricked there. |
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| Author: | jlt [ Fri Apr 07, 2023 4:01 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
Yes I was surprised that my OGS 3k opponent misplayed that common joseki. The game sequence was which was already bad for White since Black got 2 more points than in the usual joseki, and then White continued at "a" instead of tenuki. |
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| Author: | Gomoto [ Sat Apr 08, 2023 2:41 pm ] |
| Post subject: | Re: Shapes to remember (SDK level) |
Embrace the black ladder and remember the 1 2 3 sequence  Surprisingly, numerous players tend to overlook this pattern. In this progression, exclusively favorable outcomes shall emerge.  That's how the stones are supposed to walk.
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| Author: | jlt [ Sun Oct 08, 2023 11:43 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
Position #80: Black has cutting points on the lower left. Should he defend them? How? |
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| Author: | Knotwilg [ Mon Oct 09, 2023 3:26 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
My first idea was this, but it's passive. So I went for this: White is not actually thick on the left side. Black A will be painful, so Black probably gets sente to play B. |
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| Author: | jlt [ Mon Oct 09, 2023 5:55 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
Your first idea was the move I played in the game and your second idea one of the moves suggested by Katago! (Although Katago prefers D4.) |
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| Author: | jlt [ Tue Jan 16, 2024 2:24 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
Position #81: White to play. The move is quite simple, yet I didn't think about it. |
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| Author: | Knotwilg [ Tue Jan 16, 2024 2:50 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
| Author: | jlt [ Tue Jan 16, 2024 4:17 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
Yes, your first instinct was my game move, and your second guess was Katago's suggestion. |
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| Author: | jlt [ Sun Mar 03, 2024 5:55 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
Position #82, from a blitz game on OGS (1d vs. 1k). White to attack in the center. |
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| Author: | Knotwilg [ Mon Mar 04, 2024 12:28 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
This is the line I see |
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| Author: | jlt [ Mon Mar 04, 2024 7:31 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
Yes and there is also this variation to consider |
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| Author: | jlt [ Mon Mar 18, 2024 12:43 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
Position #83, White to play. Yet another illustration of "I didn't notice there is something to read". |
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| Author: | Knotwilg [ Mon Mar 18, 2024 2:34 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
| Author: | jlt [ Sun Mar 24, 2024 6:49 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
Position #84, Black to play. How to invade the bottom left? |
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| Author: | Knotwilg [ Sun Mar 24, 2024 3:28 pm ] |
| Post subject: | Re: Shapes to remember (SDK level) |
This happened to me recently: |
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| Author: | jlt [ Mon Mar 25, 2024 12:26 am ] |
| Post subject: | Re: Shapes to remember (SDK level) |
Interesting, your invasion sequence works but in the current position, Katago suggests a better sequence |
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which will become annoying.