doubling cube #003

is Player 2 score: 1 pip: 114

9 point match

pip: 119 score: 4 is Player 1

XGID=--bBBBBBBA-------bbbbcBb--:0:0:1:00:4:1:0:9:10

on roll, cube action?

Prime vs prime pozicije su obično double/take kada dođu u fazu gdje može doći do naglog preokreta i gubitka marketa, odnosno pozicije kada nakon jednog bacanja oba igrača, crni više neće imati dovoljno za take. Preskoči li bijeli preko 5 crnih checkera, crni ima pass. Iako može igrati sa 9.polja, bijeli može baciti tako da razbije svoju blokadu, samo što crni treba platiti da bi to vidio. Osim toga da li smo sigurni da crni uopće ima take iza potpune blokade?

Ako postoji sumnja treba se okrenuti kocka i odluka prebaciti na protivnika.

Prime vs prime positions are usually double/take when comes into phase when one player can escape over the blockade and another one can break his prime. If that happens player loses his market. Although white can play with checker on 9pt, he can roll badly to break his prime but black has to pay to see that. But, are we sure that black has take at all behind full prime? If there any doubt, white has to send the cube and gives opponent to decide and make error.

Money play RO

Analyzed in Rollout
No Double
Player Winning Chances:	74,83% (G: 13,38% B: 0,41%)
Opponent Winning Chances:	25,17% (G: 4,16% B: 0,14%)
Double/Take
Player Winning Chances:	75,46% (G: 13,03% B: 0,40%)
Opponent Winning Chances:	24,54% (G: 4,04% B: 0,14%)
Cubeless Equities
No Double:	+0,591
Double:	+1,204
Cubeful Equities
No Double:	+0,812 (-0,188)
Double/Take:	+1,031 (+0,031)
Double/Drop:	+1,000
Best Cube action: Double / Drop
Rollout details
5184 Games rolled with Variance Reduction. Moves and cube decisions: 3 ply
Confidence No Double:	± 0,005 (+0,807...+0,817)
Confidence Double:	± 0,009 (+1,022...+1,040)
Double Decision confidence:	100,0%
Take Decision confidence:	100,0%
Duration: 55 minutes 52 seconds

eXtreme Gammon Version: 1.21

Koliko je snažan double pokazuje činjenica da vrijedi i za money i za 4-1/9 (pri skoru je nodouble greška duplo manja i iznosi 0.099 što nije malo). Bijeli sa dvostrukim gammonima dolazi na Crawford dok crnome zaostatak u meču i vrlo efikasni redouble (sa gammonima znači meč), mali (0.031) pass kod 0-0 pretvara u veliki take pri 1-4/9 (pass greška 0.132). 

How strong is double, shows as fact that it is valid for money and at this score (nodouble is smaller error than for money but still huge 0.099). White with doubled gammons comes onto Crawford game. Being behind in match and very efficient redouble (with gammons means match) turns small pass (0.031) for money into big take at 1-4/9 (pass is 0.132 error).

Analyzed in Rollout
No Double
Player Winning Chances:	74,92% (G: 13,34% B: 0,45%)
Opponent Winning Chances:	25,08% (G: 4,09% B: 0,15%)
Double/Take
Player Winning Chances:	75,60% (G: 12,79% B: 0,45%)
Opponent Winning Chances:	24,40% (G: 3,98% B: 0,22%)
Cubeless Equities
No Double:	+0,592
Double:	+1,185
Cubeful Equities
No Double:	+0,769 (-0,099)
Double/Take:	+0,868
Double/Drop:	+1,000 (+0,132)
Best Cube action: Double / Take
Rollout details
5184 Games rolled with Variance Reduction. Moves and cube decisions: 3 ply
Confidence No Double:	± 0,006 (+0,763...+0,775)
Confidence Double:	± 0,011 (+0,857...+0,878)
Double Decision confidence:	100,0%
Take Decision confidence:	100,0%
Duration: 1 hour 01 minute

eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross