Wednesday, March 30, 2011

checker play #023

is Player 2

score: 6
pip: 46
7 point match
Crawford
pip: 71
score: 3

is Player 1
XGID=-aBCBCBB-A------------cbi-:0:0:1:63:3:6:1:7:10
to play 63

Naravno da je cool zadržati potpunu blokadu, pokušati pospremiti crnog na bar i zatvoriti kuću, ali takva igra bi značila kreiranje nefleksibilne pozicije sa spare checkerima samo na 2pt i 3pt što bi se moglo osvetiti. Kocke su takve da treba preuzeti određeni rizik. Protivnik ima kuću od samo tri polja, što znači da će bijeli relativno lako ući u igru ako završi na baru. Nakon 7/1* kreiranje četvrtog napadača na 6pt (9/6) je nešto efikasnije nego na 61 jocker otporan 7/4. U Crawfordu posao bijeli mora završiti samo sa checkerima.

It is cool to contain full prime, put black on the bar and closed homeboard without any risk but such play means creating non flexible position with spare checkers on 2pt and 3pt which can punishes white in upcoming rolls. With this roll white has to take some risk. Black has only three point board what means that white can easily enter from the bar. After hit loose white should create fourth attacker on 6pt which is more efficient than, on 61 joker resistant, 7/4. In Crawford game white has to win with checkers only.

1.Rollout19/6 7/1* eq: +0,801
Player:
Opponent:
88,44% (G:3,20% B:0,07%)
11,56% (G:1,93% B:0,00%)
Conf: ± 0,001 (+0,800...+0,802)
Duration: 1 minute 57 seconds
2.Rollout17/4 7/1* eq: +0,791 (-0,010)
Player:
Opponent:
88,00% (G:3,03% B:0,07%)
12,00% (G:0,72% B:0,00%)
Conf: ± 0,001 (+0,790...+0,792)
Duration: 1 minute 42 seconds
3.Rollout19/3 5/2eq: +0,770 (-0,032)
Player:
Opponent:
87,31% (G:2,31% B:0,04%)
12,69% (G:0,51% B:0,00%)
Conf: ± 0,001 (+0,769...+0,771)
Duration: 1 minute 13 seconds
4.Rollout17/1* 5/2eq: +0,769 (-0,033)
Player:
Opponent:
86,96% (G:2,88% B:0,06%)
13,04% (G:2,70% B:0,00%)
Conf: ± 0,001 (+0,768...+0,770)
Duration: 1 minute 48 seconds
5.Rollout27/1* 4/1eq: +0,502 (-0,299)
Player:
Opponent:
74,06% (G:2,05% B:0,03%)
25,94% (G:3,80% B:0,00%)
Conf: ± 0,003 (+0,499...+0,505)
Duration: 12,7 seconds
1 5184 Games rolled with Variance Reduction.
Moves and cube decisions: 3 ply

2 1296 Games rolled with Variance Reduction.
Moves and cube decisions: 3 ply
eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross

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