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[Bug-gnubg] Post-Crawford 2-away opening 41 for leader
From: |
Ian Shaw |
Subject: |
[Bug-gnubg] Post-Crawford 2-away opening 41 for leader |
Date: |
Fri, 2 May 2003 12:13:30 +0100 |
GnuBg thinks that after an opening 41, Leader should use the free drop.
However, if I give Leader the cube on 2, GnuBg says that Leader is over 50% to
win. If this is the case, then Leader should be taking.
My test does not change the depth of the search, so what is going on?
GNU Backgammon Position ID: 4HPwATDgc/ABMA
Match ID : MAFGABAAAAAA
+-1--2--3--4--5--6-------7--8--9-10-11-12-+ O: Leader
| X O | | O X | 1 point
| X O | | O X | Rolled 41
| O | | O X |
| O | | X |
| O | | X |
| |BAR| |^ 2 point match (Cube: 1)
| X | | O |
| X | | O |
| X | | X O |
| O X | | X O |
| O X | | X O | 0 points
+24-23-22-21-20-19------18-17-16-15-14-13-+ X: Trailer
1. Cubeful 2-ply 24/23 13/9 MWC: 50.00%
0.500 0.137 0.005 - 0.500 0.130 0.004
2-ply cubeful 100% speed [world class]
2. Cubeful 2-ply 24/23 24/20 MWC: 50.00% ( +0.00%)
0.498 0.122 0.005 - 0.502 0.129 0.004
2-ply cubeful 100% speed [world class]
3. Cubeful 2-ply 13/8 MWC: 50.00% ( +0.00%)
0.493 0.133 0.006 - 0.507 0.138 0.006
2-ply cubeful 100% speed [world class]
4. Cubeful 2-ply 24/20 6/5 MWC: 50.00% ( +0.00%)
0.488 0.122 0.005 - 0.512 0.139 0.005
2-ply cubeful 100% speed [world class]
GNU Backgammon Position ID: 4HPwATDgc/ABMA
Match ID : AQFGABAAAAAA
+-1--2--3--4--5--6-------7--8--9-10-11-12-+ O: Leader (Cube: 2)
| X O | | O X | 1 point
| X O | | O X | Rolled 41
| O | | O X |
| O | | X |
| O | | X |
| |BAR| |^ 2 point match
| X | | O |
| X | | O |
| X | | X O |
| O X | | X O |
| O X | | X O | 0 points
+24-23-22-21-20-19------18-17-16-15-14-13-+ X: Trailer
1. Cubeful 2-ply 24/23 13/9 MWC: 50.03%
0.500 0.137 0.005 - 0.500 0.130 0.004
2-ply cubeful 100% speed [world class]
2. Cubeful 2-ply 24/23 24/20 MWC: 49.83% ( -0.20%)
0.498 0.122 0.005 - 0.502 0.130 0.004
2-ply cubeful 100% speed [world class]
3. Cubeful 2-ply 13/8 MWC: 49.36% ( -0.67%)
0.494 0.131 0.005 - 0.506 0.135 0.005
2-ply cubeful 100% speed [world class]
--Ian
- [Bug-gnubg] Post-Crawford 2-away opening 41 for leader,
Ian Shaw <=