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Variant with Imperfect Board
Posted By: Nack Ballard
Date: Saturday, 25 May 2024, at 7:29 p.m.
In Response To: who is favoured by contact? OTB and Analysis (rambiz)
          
 
      
 | | White is Player 2
score: 0
pip: 63 | Unlimited Game
Jacoby Beaver | pip: 96
score: 0
Blue is Player 1 |
|
| XGID=-BBBBBB-------Ab--b-Bcccb-:1:1:1:66:0:0:3:0:10 |
| Blue to play 66 |
| 1. | Rollout1 | 20/2 14/8 | eq: -0.352 |
| Player:
Opponent: | 29.37% (G:1.61% B:0.02%)
70.63% (G:0.48% B:0.01%) | Conf.: ± 0.003 (-0.355...-0.348) - [100.0%]
Duration: 1 minute 15 seconds |
|
| 2. | Rollout1 | 20/8(2) | eq: -0.443 (-0.092) |
| Player:
Opponent: | 24.12% (G:0.00% B:0.00%)
75.88% (G:0.00% B:0.00%) | Conf.: ± 0.002 (-0.446...-0.441) - [0.0%]
Duration: 2 minutes 10 seconds |
|
| |
1 1296 Games rolled with Variance Reduction.
Dice Seed: 20656964
Moves: 3-ply, cube decisions: XG Roller
|
My rollout of Rambiz's original position is above. As the XGR++ eval predicted, running with both checkers is a near whopper.
The variant below demonstrates how much difference it can make when the board is imperfect in a contact position.
Nack
 
| | White is Player 2
score: 0
pip: 63 | Unlimited Game
Jacoby Beaver | pip: 94
score: 0
Blue is Player 1 |
|
| XGID=-BBBCBA-------Ab--b-Bcccb-:1:1:1:66:0:0:3:0:10 |
| Blue to play 66 |
| 1. | Rollout1 | 20/8(2) | eq: -0.367 |
| Player:
Opponent: | 27.47% (G:0.00% B:0.00%)
72.53% (G:0.00% B:0.00%) | Conf.: ± 0.002 (-0.370...-0.365) - [97.2%]
Duration: 43.5 seconds |
|
| 2. | Rollout1 | 20/2 14/8 | eq: -0.372 (-0.004) |
| Player:
Opponent: | 27.91% (G:1.00% B:0.01%)
72.09% (G:0.99% B:0.01%) | Conf.: ± 0.004 (-0.375...-0.368) - [2.8%]
Duration: 19.0 seconds |
|
| |
1 1296 Games rolled with Variance Reduction.
Dice Seed: 33058470
Moves: 3-ply, cube decisions: XG Roller
|
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