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Daily Quiz 12/10: XGR+ evals

Posted By: Timothy Chow
Date: Wednesday, 14 December 2011, at 5:26 p.m.

In Response To: Daily Quiz 12/10 (Daily Quiz)

W is more plausible than I thought it would be. I guess it's not so easy for White to attack all of our blots while cleaning up her own.





White is Player 2

score: 0
pip: 155
Money session
Jacoby Beaver
pip: 164
score: 0

Blue is Player 1
XGID=-b----E-C--BdC---c-cab--AA:0:0:1:21:0:0:3:0:10
Blue to play 21

1.XG Roller+Bar/22eq: -0.427
Player:
Opponent:
40.93% (G:9.97% B:0.51%)
59.07% (G:20.47% B:0.96%)
2.XG Roller+Bar/23 6/5eq: -0.434 (-0.007)
Player:
Opponent:
41.45% (G:10.26% B:0.49%)
58.55% (G:21.69% B:1.32%)
3.XG Roller+Bar/24 6/4eq: -0.446 (-0.019)
Player:
Opponent:
40.36% (G:11.05% B:0.62%)
59.64% (G:21.16% B:1.52%)
4.XG Roller+Bar/24 13/11eq: -0.505 (-0.078)
Player:
Opponent:
38.83% (G:10.16% B:0.53%)
61.17% (G:20.43% B:1.25%)
5.XG Roller+Bar/23 24/23eq: -0.515 (-0.088)
Player:
Opponent:
38.14% (G:9.56% B:0.44%)
61.86% (G:18.30% B:0.93%)
6.XG Roller+Bar/23 11/10eq: -0.524 (-0.097)
Player:
Opponent:
38.66% (G:9.94% B:0.46%)
61.34% (G:22.02% B:1.43%)

eXtreme Gammon Version: 1.21


This one is a good DQR candidate because I'd like to know how to estimate Black's winning chances after 5/off 2/off.

Two somewhat related problems (where you have to estimate your winning chances if you don't hit) that spring to mind are this one and this one.





White is Player 2

score: 1
pip: 62
5 point match
pip: 65
score: 3

Blue is Player 1
XGID=-ABaDDD------------a-cddb-:1:1:1:52:3:1:0:5:10
Blue to play 52

1.XG Roller+6/1 5/3* eq: +0.621
Player:
Opponent:
81.20% (G:3.40% B:0.06%)
18.80% (G:0.17% B:0.00%)
2.XG Roller+5/0ff 2/0ffeq: +0.489 (-0.131)
Player:
Opponent:
74.46% (G:0.12% B:0.00%)
25.54% (G:0.00% B:0.00%)

eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross

Variant:





White is Player 2

score: 1
pip: 62
5 point match
pip: 65
score: 3

Blue is Player 1
XGID=-ABaDDD-------------bbddb-:1:1:1:52:3:1:0:5:10
Blue to play 52

1.XG Roller+5/0ff 2/0ffeq: +0.465
Player:
Opponent:
73.26% (G:0.13% B:0.00%)
26.74% (G:0.00% B:0.00%)
2.XG Roller+6/1 5/3* eq: +0.446 (-0.019)
Player:
Opponent:
72.51% (G:1.75% B:0.02%)
27.49% (G:0.21% B:0.00%)

eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross






White is Player 2

score: 3
pip: 164
5 point match
pip: 142
score: 3

Blue is Player 1
XGID=---abCBbBa-BCB-A-abb-bb---:1:-1:1:53:3:3:0:5:10
Blue to play 53

1.XG Roller+15/10 13/10eq: +0.277
Player:
Opponent:
63.87% (G:12.90% B:0.48%)
36.13% (G:6.95% B:0.20%)
2.XG Roller+15/12 13/8eq: +0.217 (-0.060)
Player:
Opponent:
60.86% (G:13.97% B:0.59%)
39.14% (G:7.91% B:0.24%)
3.XG Roller+11/8 11/6eq: +0.217 (-0.060)
Player:
Opponent:
60.85% (G:16.24% B:0.73%)
39.15% (G:8.84% B:0.25%)
4.XG Roller+15/10 12/9* eq: +0.190 (-0.088)
Player:
Opponent:
59.48% (G:17.52% B:0.94%)
40.52% (G:11.97% B:0.47%)
5.XG Roller+12/9* 8/3* eq: +0.189 (-0.089)
Player:
Opponent:
59.44% (G:19.37% B:1.02%)
40.56% (G:12.70% B:0.81%)
6.XG Roller+13/8 12/9* eq: +0.186 (-0.091)
Player:
Opponent:
59.31% (G:17.16% B:0.89%)
40.69% (G:12.29% B:0.70%)

eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross

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