display:

Position 923, Category Priming

Black to play 6 1

Black vs White

Match to 7, Score: 3 - 5

added at 9/30/2010 11:27 AM, from Simon

Pipcount: 181(+60) - 121(-60)


Gnu BG ID:

Tags: go for close out |

backgammon position number 923 - checkerplay.com

1) 23/17 5/4 [show allhide all]
Equity: -0.657 Rollout

Truncated at 12 moves using 1 ply. 353 Games rolled with Variance Reduction.

Player: 31.86%29.04%2.70%0.12%
Opponent: 68.14%29.91%30.29%7.94%

Pipcount: 174(+53) - 121(-53)


2) 23/16* [show positionhide position]
Equity: -0.788 (-0.131) Rollout

Truncated at 12 moves using 1 ply. 354 Games rolled with Variance Reduction.

Player: 26.04%21.28%4.52%0.24%
Opponent: 73.96%36.51%32.11%5.34%

Pipcount: 174(+37) - 137(-37)

Software: eXtreme Gammon Version: 1.21. MET: Rockwell-Kazaross

User Comments:

10/4/2010 4:20 PM, Alain: To me it seems essentially a timing problem. Playing 23/17 5/4 gives a lot of shots. Volunteering shots will likely improve Black"s timing. On the other hand with 4 or 5 checkers back, Black will find it very difficult to close white out. Shooting 23/16* is not an efficient move because white will easily reenter and jump over White"s 4-prime. So I guess Black would like to gain timing to play a decent 1+2 back-game. For now his timing is at least 50% to small. For a 1+2 back-game I believe even being 90 pips behind may not be enough to hold Black"s structure. By the way, what is the equity of 24/23/17 according to XG ? (I don"t have XG