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BGonline.org Forums
post acepoint game
Posted By: kruidenbuiltje In Response To: post acepoint game (David Rockwell)
Date: Wednesday, 11 January 2012, at 10:10 p.m.
Hi,
does a pipple count help here:
White:
P = 70+310? = 380
Z = 15x6 = 90
S = 7 x 1,2 = 8,4
+ 17
Total: 495,4
Blue:
P = 70+100+135+80+175 = 560
Z = 24
S = 18 x 1,2 = 19,6
Parity = 20
17
Total: 640,6,
after 6/4 1 off Blue's count = -55 + 12 -20 -1,2 = -64,2
New total= 576,4.
The chance of white to win = 70% + 13,1% = 83,1% when he enters immediately
When he doesn't enter and blue for instance takes off a checker of the 3 and 4, the chance of white winning then is:
New total blue = 576,4 - 95 = 481,4
70% - 5,6% = 64,8%
The total white winning chance is now:
20/36 x 83,1% + 16/36 x 20/36 x 64,8% + rest x rest
= 55,5% x 83,1% + 24,7% x 64,8% + 19,8% x 40% (est.) =
46,1+16+7,9 = 70%
Knowing that a safe play gives blue 30% chance indicates that a very risky play (like 2off 1off) goes with a cost.
Since a direct entrance makes blue a big underdog the risk of being hit after 3/off seems worth the cost.
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