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Variant (cusp)

Posted By: Nack Ballard
Date: Wednesday, 7 October 2015, at 6:15 p.m.

In Response To: Matilda +1 and comment (svilo)





White is Player 2

score: 1
pip: 166
5 point match
pip: 146
score: 0

Blue is Player 1
XGID=-Aaaa-E-C---cD-A-cae----A-:0:0:1:21:0:1:0:5:3
Blue to play 21

1.XG Roller++6/4* 4/3* eq: +0.105
Player:
Opponent:
52.69% (G:16.94% B:0.87%)
47.31% (G:13.91% B:0.70%)
2.XG Roller++24/23 15/13eq: -0.046 (-0.151)
Player:
Opponent:
50.66% (G:13.23% B:0.45%)
49.34% (G:14.76% B:0.48%)
3.XG Roller++24/22 15/14eq: -0.171 (-0.276)
Player:
Opponent:
47.69% (G:13.02% B:0.51%)
52.31% (G:16.76% B:0.66%)
4.1-ply24/21eq: -0.069 (-0.174)
Player:
Opponent:
49.72% (G:13.50% B:0.54%)
50.28% (G:15.57% B:0.82%)
5.1-ply15/14 13/11eq: -0.088 (-0.193)
Player:
Opponent:
48.87% (G:14.45% B:0.58%)
51.13% (G:15.87% B:1.11%)


Above is the XGR evaluation (as posted by Svilo) of the original position.

Given that hitting twice is such a monster play, it's difficult to find a contrasting position without a radical change from the original. Below is a cusp variant with the same pipcount.

Nack





White is Player 2

score: 0
pip: 166
Unlimited Game
Jacoby Beaver
pip: 146
score: 0

Blue is Player 1
XGID=-Aaaa-E-C---dD-A-c-c--b-A-:0:0:1:21:0:0:3:0:10

Variant Position
[R=K] "<=12


1.Rollout124/23 15/13eq: -0.1093
Player:
Opponent:
47.89% (G:12.73% B:0.41%)
52.11% (G:16.48% B:0.58%)
Conf.: กำ0.0048 (-0.1142...-0.1045) - [50.2%]
Duration: 7 hours 22 minutes
2.Rollout16/4* 4/3* eq: -0.1094 (0.0000)
Player:
Opponent:
47.91% (G:14.20% B:0.58%)
52.09% (G:17.00% B:1.09%)
Conf.: กำ0.0055 (-0.1148...-0.1039) - [49.8%]
Duration: 8 hours 38 minutes
 
1 12960 Games rolled with Variance Reduction.
Dice Seed: 9265210
Moves: 3-ply, cube decisions: XG Roller

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