It's crystal clear to make the 5pt here, this is the pure play, and it's a pure play you should be looking for in a position when at least one of the players has many checkers back. The rollout below is the position from Boot Camp, with the cube in the middle.
| | White is Player 2
score: 0 pip: 197 | Unlimited Game Jacoby Beaver | pip: 137 score: 0
Blue is Player 1 | |
XGID=-b-cB-CBB--AcD-a--Adb-----:0:0:1:31:0:0:3:0:10 |
Blue to play 31 |
1. | Rollout1 | 8/5 6/5 | eq: +0.927 |
| Player: Opponent: | 67.40% (G:29.82% B:2.89%) 32.60% (G:5.26% B:0.27%) | Conf.: ± 0.012 (+0.915...+0.939) - [100.0%] Duration: 49 minutes 28 seconds |
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2. | Rollout1 | 18/14 | eq: +0.812 (-0.115) |
| Player: Opponent: | 65.72% (G:25.29% B:2.17%) 34.28% (G:5.43% B:0.21%) | Conf.: ± 0.016 (+0.796...+0.828) - [0.0%] Duration: 1 hour 42 minutes |
|
3. | Rollout1 | 13/10 11/10 | eq: +0.785 (-0.142) |
| Player: Opponent: | 65.18% (G:26.03% B:2.28%) 34.82% (G:5.48% B:0.26%) | Conf.: ± 0.017 (+0.767...+0.802) - [0.0%] Duration: 1 hour 46 minutes |
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4. | Rollout1 | 18/15* 15/14 | eq: +0.719 (-0.208) |
| Player: Opponent: | 61.75% (G:29.79% B:2.73%) 38.25% (G:5.56% B:0.26%) | Conf.: ± 0.018 (+0.701...+0.736) - [0.0%] Duration: 1 hour 50 minutes |
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1 1296 Games rolled with Variance Reduction. Dice Seed: 69677253 Moves: 4-ply, cube decisions: XG Roller+
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eXtreme Gammon Version: 2.10
Next rollout is of the original position from Wiggins' book with cube owned by white.
| | White is Player 2
score: 0 pip: 197 | Unlimited Game Jacoby Beaver | pip: 137 score: 0
Blue is Player 1 | |
XGID=-b-cB-CBB--AcD-a--Adb-----:1:-1:1:31:0:0:3:0:10 |
Blue to play 31 |
1. | Rollout1 | 8/5 6/5 | eq: +0.485 |
| Player: Opponent: | 67.17% (G:29.82% B:3.10%) 32.83% (G:5.23% B:0.25%) | Conf.: ± 0.010 (+0.475...+0.494) - [100.0%] Duration: 57 minutes 26 seconds |
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2. | Rollout2 | 13/10 11/10 | eq: +0.384 (-0.100) |
| Player: Opponent: | 65.09% (G:26.15% B:2.28%) 34.91% (G:5.57% B:0.22%) | Conf.: ± 0.010 (+0.375...+0.394) - [0.0%] Duration: 1 hour 01 minute |
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3. | Rollout2 | 18/14 | eq: +0.382 (-0.103) |
| Player: Opponent: | 65.20% (G:25.33% B:2.14%) 34.80% (G:5.54% B:0.24%) | Conf.: ± 0.009 (+0.373...+0.390) - [0.0%] Duration: 58 minutes 37 seconds |
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4. | Rollout2 | 18/15* 15/14 | eq: +0.338 (-0.147) |
| Player: Opponent: | 61.78% (G:29.64% B:2.79%) 38.22% (G:5.54% B:0.26%) | Conf.: ± 0.009 (+0.329...+0.347) - [0.0%] Duration: 1 hour 06 minutes |
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1 1296 Games rolled with Variance Reduction. Dice Seed: 71824811 Moves: 4-ply, cube decisions: XG Roller+
2 1296 Games rolled with Variance Reduction. Dice Seed: 30259299 Moves: 4-ply, cube decisions: XG Roller+
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eXtreme Gammon Version: 2.10