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Position of the Day 07-31-26 - XG++

Posted By: Chuck Bower
Date: Tuesday, 18 August 2026, at 5:03 p.m.

In Response To: Position of the Day 07-31-26 - Rollout (Stick)

I was curious how some other plays looked to XG, and didn't want to waste time with a rollout. Stick already hit the high points. Summary here is that as long as you make start with 20/18(2) it's difficult to screw up. (And who plays 7/3 or 6/2 anyway?) Top seven plays do this before the double HB point move. It is interesting that this latter mentioned play is considerably worse with the 3-ply rollout, and it's 3.5 standard deviation significant (i.e. a difference of 0.050 compared to 0.025). Shows the value of a 3-ply rollout even for this seemingly straightforward position. And it doesn't make me any less uneasy when people use their phone app to decide....





White is Player 2

score: 0
pip: 136
Unlimited Game
Jacoby Beaver
pip: 144
score: 0

Blue is Player 1
XGID=---B--DBB-b-bB--bdAeB-----:0:0:1:22:0:0:3:0:10
Blue to play 22

1.XG Roller++20/18(2) 7/5 6/4eq: -0.190
Player:
Opponent:
43.62% (G:2.75% B:0.06%)
56.38% (G:2.25% B:0.08%)
2.XG Roller++20/18(2) 7/5(2)eq: -0.196 (-0.006)
Player:
Opponent:
43.47% (G:2.72% B:0.06%)
56.53% (G:2.23% B:0.07%)
3.XG Roller++20/18(2) 13/11(2)eq: -0.197 (-0.007)
Player:
Opponent:
43.45% (G:2.27% B:0.06%)
56.55% (G:1.86% B:0.06%)
4.XG Roller++20/18(2) 6/4(2)eq: -0.197 (-0.007)
Player:
Opponent:
43.42% (G:2.39% B:0.05%)
56.58% (G:1.98% B:0.06%)
5.XG Roller++20/18(2) 8/4eq: -0.199 (-0.009)
Player:
Opponent:
43.31% (G:2.38% B:0.05%)
56.69% (G:1.99% B:0.06%)
6.XG Roller++20/18(2) 8/6 7/5eq: -0.203 (-0.013)
Player:
Opponent:
43.22% (G:2.56% B:0.06%)
56.78% (G:2.26% B:0.09%)
7.XG Roller++20/18(2) 6/2eq: -0.213 (-0.023)
Player:
Opponent:
42.94% (G:2.41% B:0.04%)
57.06% (G:2.21% B:0.07%)
8.XG Roller++7/5(2) 6/4(2)eq: -0.215 (-0.025)
Player:
Opponent:
42.44% (G:4.63% B:0.09%)
57.56% (G:3.14% B:0.07%)
9.XG Roller++20/18(2) 7/3eq: -0.219 (-0.029)
Player:
Opponent:
42.75% (G:2.46% B:0.04%)
57.25% (G:2.37% B:0.08%)
10.XG Roller++20/18(2) 7/5 3/1eq: -0.224 (-0.034)
Player:
Opponent:
42.59% (G:3.19% B:0.04%)
57.41% (G:3.15% B:0.14%)

eXtreme Gammon Version: 2.10

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