Re: [Bug-gnubg] Use of Two-Sided DB in matches

[Neil Robins]

XG 1-ply = GNU 0-ply. Seems to work as I think GNU should.

 

XGID=--A-AAA------------b----b-:0:0:1:00:3:2:0:5:8

Score is X:3 O:2 5 pt(s) match.
 +13-14-15-16-17-18------19-20-21-22-23-24-+
 |                  |   | O              O |
 |                  |   | O              O |
 |                  |   |                  |
 |                  |   |                  |
 |                  |   |                  |
 |                  |BAR|                  |
 |                  |   |                  |
 |                  |   |                  |
 |                  |   |                  |
 |                  |   |                  |
 |                  |   | X  X  X     X    |
 +12-11-10--9--8--7-------6--5--4--3--2--1-+
Pipcount  X: 17  O: 14 X-O: 3-2/5
Cube  : 1
X on roll, cube action

Analyzed in 1 ply
Player Winning Chances:    73.53% (G:  0.00% B:  0.00%)
Opponent Winning Chances:  26.47% (G:  0.00% B:  0.00%)

Cubeless Equities: No Double=+0.471, Double=+1.549

Cubeful Equities:
      No Double:   +0.550 (-0.450)
      Double/Take: +1.435 (+0.435)
      Double/Drop: +1.000

Best Cube action: Double / Drop

 

Analyzed in 2 ply
Player Winning Chances:    73.54% (G:  0.00% B:  0.00%)
Opponent Winning Chances:  26.46% (G:  0.00% B:  0.00%)

Cubeless Equities: No Double=+0.471, Double=+1.549

Cubeful Equities:
      No Double:   +0.566 (-0.311)
      Double/Take: +0.877
      Double/Drop: +1.000 (+0.123)

Best Cube action: Double / Take

----- Original Message -----

From: Michael Petch

To: Neil Robins ; address@hidden

Sent: Saturday, September 05, 2009 7:38 AM

Subject: Re: [Bug-gnubg] Use of Two-Sided DB in matches

Not necessarily. Interestingly enough on one ply It says double/take but that based on the potential 21 rolls and their resultant equities (each that will also have janowski applied). It also assumes the cube is seen within the plies that are given.

I have a question for you. On simple 0 ply what are XBG’s results? Would you post them. I’d be curious.

On 05/09/09 12:11 AM, "Neil Robins" <address@hidden> wrote:

Surely, therefore, at least 1-ply or higher should see the recube and the then dead cube situation and go to the DB for an exact valid value.