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BGonline.org Forums
Simple early game 22 - Rollout and OTB
Posted By: Rich Munitz In Response To: Simple early game 22 (Rich Munitz)
Date: Tuesday, 29 December 2009, at 4:06 p.m.
OTB, like Neil, I saw very little defensive urgency here, was well behind in the race and felt that the best approach was to contain the opponent's anchor, maximize contact, hope to hit a shot and be ready with an offensive position. The 11 point seemed to have long term value. For reasons outlined by many, this was the wrong idea. Making the 20 point still maximizes contact via the third checker back on the 24 point, but it also locks up the best possible holding game point which will go a long way to negating the racing deficit in terms of winning chances. The 20 point simply throws cold water on the opponent's offensive development.
XG picked the 20 point as best from the start, and with every increasing level of evaluation and then the rollouts, it only got stronger and more clear. The long term value of the 20 point clearly emerged, and the idea of make it while you can because it may be difficult to do later was reinforced.
is Player 2
score: 0
pip: 156![]()
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7 point match pip: 175
score: 0
is Player 1
XGID=-----bEAB--AdC-a-c-e----C-:0:0:1:22:0:0:0:7:10 to play 22
1. Rollout1 24/20(2) eq: -0.282
Player:
Opponent:43.06% (G:9.24% B:0.47%)
56.94% (G:13.78% B:0.82%)Conf: ± 0.028 (-0.310...-0.254)
Duration: 1 hour 20 minutes 45 seconds2. Rollout2 24/22(2) 6/4(2) eq: -0.344 (-0.062)
Player:
Opponent:42.41% (G:8.63% B:0.57%)
57.59% (G:14.73% B:0.86%)Conf: ± 0.027 (-0.371...-0.317)
Duration: 1 hour 04 minutes 19 seconds3. Rollout3 24/22 13/11 6/4(2) eq: -0.350 (-0.068)
Player:
Opponent:43.14% (G:8.81% B:0.55%)
56.86% (G:17.18% B:1.26%)Conf: ± 0.027 (-0.377...-0.323)
Duration: 43 minutes 24 seconds1 854 Games rolled with Variance Reduction.
Moves and cube decisions: 3 ply
2 853 Games rolled with Variance Reduction.
Moves and cube decisions: 3 ply
3 661 Games rolled with Variance Reduction.
Moves and cube decisions: 3 plyeXtreme Gammon Version: 1.11, MET: GnuBG 11 point
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