Winning after Qf6+!

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jp
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Re: Winning after Qf6+!

Post by jp » Sat Dec 28, 2019 9:05 am

Nordlandia wrote:
Fri Dec 27, 2019 9:19 pm
Analysis by Lc0 v0.23.1+git.6837b83: 2x ASUS ROG Strix RTX 2080 Super OC

White is clearly better: +- (2.02) Depth: 17/36 00:03:02 5725kN
(27.12.2019)
AdminX wrote:
Fri Dec 27, 2019 10:17 pm
Image

But did you two see Jim's earlier results? Lc0's analysis gets "worse" with longer time. (Our current conclusion is that this position is won by White with Qf6+ and Bd2.)

mmt wrote:
Sat Oct 26, 2019 10:18 pm
After a deep evaluation, 3.3 billion nodes, LC0's Qf6+ score falls a little. It doesn't see a clear win. It used 185 GB of RAM by this point.

+1.31 Qf6+ Bxf6 gxf6+ Kg8 Bd2 Qa5 Bh6 Qxc3 bxc3 b2 Bxf8 Rxf8 Rb1 Rb8 Ng5 h6 Rxh6 Nxa3 Rh7 Be8 Rxb2 Rxb2 Rg7+ Kh8 Bg4 Nc2 Bxe6 fxe6 Ra7 Rb8 Nxe6 Ne3 Kg1 g5 Nxg5 Bg6 Rxa4 Be4 Ra5 Bg6 h4 Nd1 Ra3 Ne3 Ra7 Be4 Rg7 Rb1+ Kf2 Ng4+ Kg3 Nh6 Ra7 Rg1+ Kf2 Rg2+ Kf1 Rg4 Ra8+ Ng8 f7 Rf4+ Ke2 Bh7 f8=Q Rxf8 Rxf8 Bf5 Ra8 Kg7 Ra1 Kg6 Ke3 Ne7 Kf4 Bh3 Ra6+ Be6 Rb6 Kh5 Rxe6 Ng6+ (N: 2749M, P: 6.24%, V: 0.886, Q: 0.445)

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AdminX
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Re: Winning after Qf6+!

Post by AdminX » Sat Dec 28, 2019 10:21 am

jp wrote:
Sat Dec 28, 2019 9:05 am
Nordlandia wrote:
Fri Dec 27, 2019 9:19 pm
Analysis by Lc0 v0.23.1+git.6837b83: 2x ASUS ROG Strix RTX 2080 Super OC

White is clearly better: +- (2.02) Depth: 17/36 00:03:02 5725kN
(27.12.2019)
AdminX wrote:
Fri Dec 27, 2019 10:17 pm
Image

But did you two see Jim's earlier results? Lc0's analysis gets "worse" with longer time. (Our current conclusion is that this position is won by White with Qf6+ and Bd2.)

mmt wrote:
Sat Oct 26, 2019 10:18 pm
After a deep evaluation, 3.3 billion nodes, LC0's Qf6+ score falls a little. It doesn't see a clear win. It used 185 GB of RAM by this point.

+1.31 Qf6+ Bxf6 gxf6+ Kg8 Bd2 Qa5 Bh6 Qxc3 bxc3 b2 Bxf8 Rxf8 Rb1 Rb8 Ng5 h6 Rxh6 Nxa3 Rh7 Be8 Rxb2 Rxb2 Rg7+ Kh8 Bg4 Nc2 Bxe6 fxe6 Ra7 Rb8 Nxe6 Ne3 Kg1 g5 Nxg5 Bg6 Rxa4 Be4 Ra5 Bg6 h4 Nd1 Ra3 Ne3 Ra7 Be4 Rg7 Rb1+ Kf2 Ng4+ Kg3 Nh6 Ra7 Rg1+ Kf2 Rg2+ Kf1 Rg4 Ra8+ Ng8 f7 Rf4+ Ke2 Bh7 f8=Q Rxf8 Rxf8 Bf5 Ra8 Kg7 Ra1 Kg6 Ke3 Ne7 Kf4 Bh3 Ra6+ Be6 Rb6 Kh5 Rxe6 Ng6+ (N: 2749M, P: 6.24%, V: 0.886, Q: 0.445)
Yeah, I saw it. I also noticed that it saw the mating line earlier before moving away from it.
"Good decisions come from experience, and experience comes from bad decisions."
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