BGonline.org Forums

backgame double

Posted By: Daniel Murphy
Date: Saturday, 24 October 2009, at 9:58 p.m.

In Response To: backgame double (aoleg1)

Then the cost of my mistake (double) is 0,6% MWC but the cost of opponent's mistake (pass) is 2,3% MWC. Is it chance of human pass is greater than the ratio? I think, yes. So double is practically correct.

Just wanted to point out that (using 2-ply numbers) the probability that Opponent passes your double which makes doubling correct is 0.6%/(0.6%+2.699%) = 18.18%, and that Gnubg does that calculation for you -- "Proper cube action: No double, take (18.2%)".

(My Gnbug says -0.600% ME for wrong double and +2.699% ME (not 2.3%) for wrong pass, with G11 MET.)

Messages In This Thread

• backgame double
  aoleg1 -- Friday, 23 October 2009, at 11:58 a.m.
  • backgame double
    Rich Munitz -- Friday, 23 October 2009, at 5:35 p.m.
    • backgame double
      Rich Munitz -- Friday, 23 October 2009, at 6:08 p.m.
  • backgame double
    neilkaz -- Friday, 23 October 2009, at 5:43 p.m.
  • backgame double
    aoleg1 -- Saturday, 24 October 2009, at 3:04 p.m.
    • backgame double
      Daniel Murphy -- Saturday, 24 October 2009, at 9:58 p.m.
    • backgame double
      Daniel Murphy -- Sunday, 25 October 2009, at 12:02 a.m.