If you have learned the 51S-43 play at GS, and I know Phil has, you won't be happy with your play at 2a4a. I find it deceptive to call 2a4a GS. There are too many differences.
Once again, if there are significant differences in the opening, they exist later in the game. Study of the opening ripples through your study of the whole game.
![](../Images/n_high.gif)
![](../Images/o_w_0.gif) ![](../Images/p_ud_b_2.gif) ![](../Images/p_up_0.gif) ![](../Images/p_ud_0.gif) ![](../Images/p_up_0.gif) ![](../Images/p_ud_0.gif) ![](../Images/p_up_w_5.gif) ![](../Images/b_up_0.gif) ![](../Images/p_ud_0.gif) ![](../Images/p_up_w_4.gif) ![](../Images/p_ud_0.gif) ![](../Images/p_up_0.gif) ![](../Images/p_ud_0.gif) ![](../Images/p_up_b_5.gif) ![](../Images/c_up_0.gif)
![](../Images/b_center34right.gif) ![](../Images/c_center.gif)
![](../Images/o_b_0.gif) ![](../Images/p_dn_w_1.gif) ![](../Images/p_dd_w_1.gif) ![](../Images/p_dn_0.gif) ![](../Images/p_dd_0.gif) ![](../Images/p_dn_0.gif) ![](../Images/p_dd_b_5.gif) ![](../Images/b_dn_0.gif) ![](../Images/p_dn_0.gif) ![](../Images/p_dd_b_3.gif) ![](../Images/p_dn_0.gif) ![](../Images/p_dd_0.gif) ![](../Images/p_dn_0.gif) ![](../Images/p_dd_w_4.gif) ![](../Images/c_dn_0.gif)
![](../Images/n_low.gif) | | White is Player 2
score: 0 pip: 161 | 2 point match Crawford | pip: 167 score: 1
Blue is Player 1 | |
XGID=-aa---E-C---dE---d-e----B-:0:0:1:43:1:0:1:2:10 |
Blue to play 43 |
1. | Rollout1 | 24/21 6/2* | eq: -0.3575 |
| Player: Opponent: | 45.64% (G:12.93% B:1.55%) 54.36% (G:13.52% B:1.55%) | Conf.: ±0.0012 (-0.3587...-0.3563) - [100.0%] Duration: 1 day 07 hours 50 minutes |
|
2. | Rollout1 | 24/20 13/10 | eq: -0.3607 (-0.0031) |
| Player: Opponent: | 45.94% (G:12.93% B:1.49%) 54.06% (G:13.97% B:1.50%) | Conf.: ±0.0012 (-0.3618...-0.3595) - [0.0%] Duration: 1 day 04 hours 53 minutes |
|
3. | Rollout1 | 24/21 24/20 | eq: -0.3664 (-0.0088) |
| Player: Opponent: | 46.56% (G:12.96% B:1.56%) 53.44% (G:14.87% B:1.15%) | Conf.: ±0.0012 (-0.3676...-0.3652) - [0.0%] Duration: 1 day 04 hours 45 minutes |
|
|
1 31104 Games rolled with Variance Reduction. Dice Seed: 38313513 Moves and cube decisions: 4-ply
|
eXtreme Gammon Version: 2.10, MET: Rockwell-Kazaross
![](../Images/n_high.gif)
![](../Images/o_w_0.gif) ![](../Images/p_ud_b_2.gif) ![](../Images/p_up_0.gif) ![](../Images/p_ud_0.gif) ![](../Images/p_up_0.gif) ![](../Images/p_ud_0.gif) ![](../Images/p_up_w_5.gif) ![](../Images/b_up_0.gif) ![](../Images/p_ud_0.gif) ![](../Images/p_up_w_4.gif) ![](../Images/p_ud_0.gif) ![](../Images/p_up_0.gif) ![](../Images/p_ud_0.gif) ![](../Images/p_up_b_5.gif) ![](../Images/c_up_0.gif)
![](../Images/b_center34right.gif) ![](../Images/c_center.gif)
![](../Images/o_b_0.gif) ![](../Images/p_dn_w_1.gif) ![](../Images/p_dd_w_1.gif) ![](../Images/p_dn_0.gif) ![](../Images/p_dd_0.gif) ![](../Images/p_dn_0.gif) ![](../Images/p_dd_b_5.gif) ![](../Images/b_dn_0.gif) ![](../Images/p_dn_0.gif) ![](../Images/p_dd_b_3.gif) ![](../Images/p_dn_0.gif) ![](../Images/p_dd_0.gif) ![](../Images/p_dn_0.gif) ![](../Images/p_dd_w_4.gif) ![](../Images/c_dn_0.gif)
![](../Images/n_low.gif) | | White is Player 2
score: 0 pip: 161 | 4 point match | pip: 167 score: 2
Blue is Player 1 | |
XGID=-aa---E-C---dE---d-e----B-:0:0:1:43:2:0:0:4:10 |
Blue to play 43 |
1. | Rollout1 | 24/21 24/20 | eq: -0.4421 |
| Player: Opponent: | 46.63% (G:13.08% B:1.61%) 53.37% (G:14.85% B:1.15%) | Conf.: ±0.0052 (-0.4473...-0.4370) - [100.0%] Duration: 4 hours 03 minutes |
|
2. | Rollout1 | 24/20 13/10 | eq: -0.4552 (-0.0131) |
| Player: Opponent: | 46.44% (G:12.52% B:1.40%) 53.56% (G:14.20% B:0.95%) | Conf.: ±0.0044 (-0.4596...-0.4507) - [0.0%] Duration: 3 hours 16 minutes |
|
3. | Rollout1 | 24/21 6/2* | eq: -0.4627 (-0.0206) |
| Player: Opponent: | 46.00% (G:12.10% B:1.35%) 54.00% (G:13.78% B:1.15%) | Conf.: ±0.0047 (-0.4674...-0.4580) - [0.0%] Duration: 3 hours 41 minutes |
|
|
1 15552 Games rolled with Variance Reduction. Dice Seed: 63286385 Moves and cube decisions: 3-ply
|
eXtreme Gammon Version: 2.10, MET: Rockwell-Kazaross