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Variants

Posted By: Nack Ballard
Date: Monday, 23 November 2015, at 6:16 p.m.

In Response To: Two major fuck-ups (why so big?) (Snua)

Position 1
White is FrankZappa

score: 2
pip: 123
7 point match
pip: 143
score: 4

Blue is snua
XGID=-a----ECB---bDa--bbcb--bA-:0:0:1:63:4:2:0:7:10

Original Position (Blue to play 63)


1.Rollout124/15eq: -0.8626
Player:
Opponent:		35.03% (G:4.24% B:0.50%)
64.97% (G:21.95% B:0.22%)		Conf.: กำ0.0199 (-0.8825...-0.8427) - [100.0%]
Duration: 3 minutes 46 seconds
2.Rollout213/10 13/7eq: -1.0000 (-0.1374)
Player:
Opponent:		31.23% (G:7.07% B:0.26%)
68.77% (G:27.03% B:0.56%)		Conf.: กำ0.0000 (-1.0000...-1.0000) - [0.0%]
Duration: 3 minutes 46 seconds
3.2-ply24/21 13/7eq: -1.0000 (-0.1374)
Player:
Opponent:		32.86% (G:5.77% B:0.27%)
67.14% (G:28.81% B:0.30%)
4.2-ply13/7 6/3eq: -1.0000 (-0.1374)
Player:
Opponent:		29.50% (G:5.44% B:0.24%)
70.50% (G:29.92% B:0.58%)
5.2-ply13/4eq: -1.0000 (-0.1374)
Player:
Opponent:		29.31% (G:5.58% B:0.29%)
70.69% (G:30.74% B:0.73%)
 
1 587 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller

2 588 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller

Above is a short rollout of the original 63 position, copied from Snua's nearby post.

Given how much better R (Run, 24/15) is than the next best play, a contrasting variant is difficult without making a radical change. I offer the variant below:







White is Player 2

score: 2
pip: 113
7 point match
pip: 143
score: 4

Blue is Player 1
XGID=-a----ECB---bDa--b-cb--dA-:0:0:1:63:4:2:0:7:10

Variant Position (Blue to play 63)
Compared to the original, White is adjusted 7/2(2)


1.Rollout124/21 13/7eq: -0.506
Player:
Opponent:		39.96% (G:6.89% B:0.50%)
60.04% (G:18.11% B:0.21%)		Conf.: กำ 0.006 (-0.511...-0.500) - [100.0%]
Duration: 2 hours 51 minutes
2.Rollout124/15eq: -0.537 (-0.031)
Player:
Opponent:		39.69% (G:6.07% B:0.52%)
60.31% (G:18.69% B:0.19%)		Conf.: กำ 0.008 (-0.544...-0.529) - [0.0%]
Duration: 2 hours 57 minutes
 
1 5184 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller

Position 2
White is FrankZappa

score: 3
pip: 134
7 point match
pip: 135
score: 4

Blue is snua
XGID=-a-B--E-Ca-AcC---b-cc-b--A:0:0:1:42:4:3:0:7:10

Original Position (Blue to play 42)


1.XG Roller+Bar/21 11/9* eq: -0.2385
Player:
Opponent:		47.96% (G:13.00% B:0.56%)
52.04% (G:18.10% B:0.47%)
2.XG Roller+Bar/23 13/9* eq: -0.4918 (-0.2533)
Player:
Opponent:		44.69% (G:14.30% B:0.87%)
55.31% (G:22.00% B:0.93%)
3.1-plyBar/21 13/11eq: -0.8514 (-0.6130)
Player:
Opponent:		38.75% (G:9.47% B:0.35%)
61.25% (G:22.04% B:0.26%)
4.1-plyBar/23 11/7eq: -1.0000 (-0.7615)
Player:
Opponent:		33.98% (G:7.82% B:0.28%)
66.02% (G:24.88% B:0.59%)
5.1-plyBar/21 8/6eq: -1.0000 (-0.7615)
Player:
Opponent:		32.64% (G:8.05% B:0.31%)
67.36% (G:27.30% B:0.74%)

Above is mixed XG evaluations of the original 42 position, copied from Snua's nearby post.

Below is a contrasting variant.

Nack





White is Player 2

score: 3
pip: 138
7 point match
pip: 135
score: 4

Blue is Player 1
XGID=-a-B--E-Ca-AcC-b---cc-b--A:0:0:1:42:4:3:0:7:10

Variant Position (Blue to play 42)
Compared to the original, White has her 8pt instead of 10pt


1.Rollout1Bar/23 13/9* eq: -0.287
Player:
Opponent:		47.90% (G:17.00% B:2.10%)
52.10% (G:19.90% B:1.28%)		Conf.: กำ 0.017 (-0.304...-0.270) - [100.0%]
Duration: 1 hour 17 minutes
2.Rollout1Bar/21 11/9* eq: -0.363 (-0.076)
Player:
Opponent:		46.53% (G:14.80% B:1.47%)
53.47% (G:20.77% B:1.04%)		Conf.: กำ 0.019 (-0.381...-0.344) - [0.0%]
Duration: 1 hour 18 minutes
 
1 1296 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller

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