
              
 
              
 | | White is Player 2
score: 0 pip: 136 | Unlimited Game Jacoby Beaver | pip: 138 score: 0
Blue is Player 1 | |
| XGID=-aB--BCBC---b-b--d-d-bB-A-:0:0:1:42:0:0:3:0:10 |
62S-33P-22Y_64P-65R-32L- 65R-32D-42S-51P-52H-32@-65T-42 |
| 1. | Rollout1 | 8/4 6/4 | eq: +0.256 |
| Player: Opponent: | 54.58% (G:21.55% B:0.68%) 45.42% (G:11.10% B:0.49%) | Conf.: ± 0.016 (+0.241...+0.272) - [100.0%] Duration: 25.7 seconds |
|
| 2. | Rollout1 | 24/20 22/20 | eq: +0.150 (-0.107) |
| Player: Opponent: | 52.34% (G:15.31% B:0.38%) 47.66% (G:7.19% B:0.31%) | Conf.: ± 0.018 (+0.132...+0.168) - [0.0%] Duration: 37.4 seconds |
|
| 3. | 1-ply | 24/18 | eq: -0.082 (-0.338) |
| Player: Opponent: | 46.23% (G:13.54% B:0.38%) 53.77% (G:10.57% B:0.27%) | |
|
| 4. | 1-ply | 24/20 8/6 | eq: -0.125 (-0.381) |
| Player: Opponent: | 44.70% (G:13.58% B:0.40%) 55.30% (G:10.42% B:0.29%) | |
|
| 5. | 1-ply | 24/22 8/4 | eq: -0.206 (-0.463) |
| Player: Opponent: | 42.82% (G:13.30% B:0.37%) 57.18% (G:12.77% B:0.39%) | |
|
| |
1 1296 Games rolled with Variance Reduction. Moves: 3-ply, cube decisions: XG Roller
|
I dropped by and saw that my name was invoked...
Bob posed a relevant question of nomenclature. I've never tried to define a clear delineation between "early game" and "middle game," though I'd be inclined to classify this position as a middle game.
Be that as it may, the critical issue is that Blue already owns the 22pt, as Tim and Christian noted. This places the position above easily into an exceptional subset. Making the 20pt is merely upgrading an already decent anchor. To grasp the size of the swing, compare the variant below, where one of Blue's 22pt checkers is back on the 24pt.

              
 
              
 | | White is Player 2
score: 0 pip: 136 | Unlimited Game Jacoby Beaver | pip: 140 score: 0
Blue is Player 1 | |
| XGID=-aB--BCBC---b-b--d-d-bA-B-:0:0:1:42:0:0:3:0:10 |
| Middle-game variant with 22pt checker back on 24pt |
| 1. | Rollout1 | 24/20 22/20 | eq: +0.1310 |
| Player: Opponent: | 51.75% (G:15.65% B:0.34%) 48.25% (G:7.41% B:0.33%) | Conf.: ±0.0161 (+0.1149...+0.1470) - [100.0%] Duration: 32 minutes 57 seconds |
|
| 2. | Rollout1 | 8/4 6/4 | eq: +0.0808 (-0.0502) |
| Player: Opponent: | 50.02% (G:21.42% B:0.99%) 49.98% (G:14.80% B:1.09%) | Conf.: ±0.0144 (+0.0664...+0.0952) - [0.0%] Duration: 23 minutes 31 seconds |
|
| |
1 1296 Games rolled with Variance Reduction. Dice Seed: 69942595 Moves: 3-ply, cube decisions: XG Roller
|
The same issue can occur in a position that is unarguably in the early game. See the pair below.

              
 
              
 | | White is Player 2
score: 0 pip: 152 | Unlimited Game Jacoby Beaver | pip: 174 score: 0
Blue is Player 1 | |
| XGID=-a----E-C---dDb--c-e--B-A-:0:0:1:42:0:0:3:0:10 |
| 41S-62H-31@-52P-42 |
| 1. | XG Roller++ | 8/4 6/4 | eq: -0.229 |
| Player: Opponent: | 43.35% (G:11.31% B:0.32%) 56.65% (G:13.19% B:0.53%) | |
|
| 2. | XG Roller++ | 24/20 22/20 | eq: -0.283 (-0.054) |
| Player: Opponent: | 41.34% (G:8.86% B:0.22%) 58.66% (G:10.15% B:0.31%) | |
|

              
 
              
 | | White is Player 2
score: 0 pip: 152 | Unlimited Game Jacoby Beaver | pip: 176 score: 0
Blue is Player 1 | |
| XGID=-a----E-C---dDb--c-e--A-B-:0:0:1:42:0:0:3:0:10 |
| Early-game variant with 22pt checker back on 24pt |
| 1. | XG Roller++ | 24/20 22/20 | eq: -0.223 |
| Player: Opponent: | 43.09% (G:10.46% B:0.25%) 56.91% (G:11.32% B:0.38%) | |
|
| 2. | XG Roller++ | 8/4 6/4 | eq: -0.347 (-0.124) |
| Player: Opponent: | 41.40% (G:10.47% B:0.30%) 58.60% (G:16.00% B:0.98%) | |
|