[Bug-gnubg] cubeless ok but not cubeful.

[bob koca]

 
 


   GNU Backgammon  Position ID: 4PPgAVDMTvABJA
                 Match ID   : cAkAAAAAAAAA
 +13-14-15-16-17-18------19-20-21-22-23-24-+     O: gnubg
 | X           O    | O | O        X     X |     0 points
 | X           O    |   | O                |    
 | X           O    |   | O                |    
 | X           O    |   | O                |    
 | X                |   | O                |   
v|                  |BAR|                  |     (Cube: 1)
 |                  |   |                  |   
 | O                |   |                  |    
 | O                |   | X                |    
 | O                |   | X  X     X       |     On roll
 | O           X    |   | X  X     X     O |     0 points
 +12-11-10--9--8--7-------6--5--4--3--2--1-+     X: Stick
 
 
   The cubeless numbers are reasonable each time for 0ply, 1ply, and 2 ply. But the cubeful numbers are reasonable only for 0-ply.
 

Cube analysis
0-ply cubeless equity  +0.552870
  0.663548 0.288003 0.010951 - 0.336452 0.070565 0.002616
Cubeful equities:
1. Double, take         +0.876953
2. Double, pass         +1.000000  ( +0.123047)
3. No double            +0.680082  ( -0.196871)
Proper cube action: Double, take
 
 

Cube analysis
1-ply cubeless equity  +0.590686
  0.679289 0.290100 0.013408 - 0.320711 0.069290 0.002110
Cubeful equities:
1. Double, take         +0.045633
2. Double, pass         +1.000000  ( +0.954367)
3. No double            +0.036137  ( -0.009496)
Proper cube action: Double, take

 

Cube analysis
2-ply cubeless equity  +0.570977
  0.668266 0.296238 0.012481 - 0.331734 0.071660 0.002615
Cubeful equities:
1. No double            +0.160876
2. Double, pass         +1.000000  ( +0.839124)
3. Double, take         +0.159837  ( -0.001038)
Proper cube action: No double, take (0.1%)
 
Bob Koca

 

 

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