Jun 23

From an online match 

The score (after 2 games) is: gnubg 1, ace 1 (match to 3 points)

Move number 6: gnubg to play 61


+--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+
| 2X 1X 2X 3X 2X 2X |   |  ' 2X 1O  '  '  ' |
|                   |   |                   |
|        6 1        |   |                   |
| 1X  ' 2O 2O 2O 4O | 2 | 2O  ' 1O  '  '  ' |
|                   | 1O|                   |
+-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+

Pip counts: gnubg 84, ace 112
Position ID: bHsTEEBrtxkAIA Match ID: EQFnABAACAAA

# Ply Move Equity
  1 2 24/23 8/2 +0.469
  0.735 0.362 0.006 – 0.265 0.029 0.000  
  2 2 24/17 +0.442 ( -0.027)
  0.721 0.398 0.009 – 0.279 0.078 0.003  
  3 0 8/7 8/2 -0.166 ( -0.636)
  0.417 0.145 0.002 – 0.583 0.065 0.001  
  4 0 8/2 4/3 -0.175 ( -0.644)
  0.413 0.145 0.002 – 0.587 0.069 0.001  
  5 0 8/2 6/5 -0.372 ( -0.841)
  0.314 0.103 0.002 – 0.686 0.140 0.008  

 

# Ply Move Equity
  1 R 24/17 +0.494
 
0.747 0.391 0.002 0.253 0.101 0.001 +0.494 +0.494
0.003 0.022 0.001 0.003 0.011 0.006 0.005 0.005
 
  Full cubeful rollout with var.redn.  
  216 games, Mersenne Twister dice gen. with seed 1598776670 and quasi-random dice  
  Play: world class 2-ply cubeful prune [world class]  
  keep the first 0 0-ply moves and up to 8 more moves within equity 0.16  
  Skip pruning for 1-ply moves.  
  Cube: 2-ply cubeful prune [world class]  
  2 R 24/23 8/2 +0.425 ( -0.069)
 
0.712 0.390 0.000 0.288 0.031 0.000 +0.425 +0.425
0.003 0.022 0.001 0.003 0.004 0.000 0.006 0.006
 
  Full cubeful rollout with var.redn.  
  216 games, Mersenne Twister dice gen. with seed 1598776670 and quasi-random dice  
  Play: world class 2-ply cubeful prune [world class]  
  keep the first 0 0-ply moves and up to 8 more moves within equity 0.16  
  Skip pruning for 1-ply moves.  
  Cube: 2-ply cubeful prune [world class]  
  3 0 8/7 8/2 -0.166 ( -0.660)
  0.417 0.145 0.002 – 0.583 0.065 0.001  
  4 0 8/2 4/3 -0.175 ( -0.669)
  0.413 0.145 0.002 – 0.587 0.069 0.001  
  5 0 8/2 6/5 -0.372 ( -0.866)
  0.314 0.103 0.002 – 0.686 0.140 0.008  

Tagged with:
Jun 23

From Woolsey, BG Encyclopdia, 04-10

The score (after 0 games) is: gnubg 0, ace 0

move number 8:ace doubles to 2


+--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+
| 2O 2X 2X 3X 3X 3X |   | 1O  '  '  '  '  ' |
|                   | 2X|                   |
|                   |   |        [2]        |
| 2O 2O 2O 2O 2O 2O |   |  '  '  '  '  '  ' |
+-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+

Pipcounts: gnubg 105, ace 108
Position ID: trsDAGDbtgEgMA Match ID: cBEAAAAAAAAA

• gnubg takes

Doppler-Entscheidung
Rollout cubeless equity +0,606
Gewinnerwartungen mit Doppler:
1. Doppel, Annahme +0,883
2. Doppel, Aufgabe +1,000 +0,117
3. Kein Doppel +0,542 -0,341
Richtige Doppler-Aktion: Double, take
Details der Rollouts
Gewinn W g W bg Verlust L g L bg Ohne Doppler Mit Doppler
Doppler auf 1 in der Mitte 0,696 0,276 0,007 0,304 0,066 0,002 +0,606 +0,542
Standardfehler 0,002 0,003 0,000 0,002 0,002 0,000 0,005 0,016
Spieler gnubg hat einen Doppler auf 2 0,692 0,243 0,005 0,308 0,064 0,002 +1,134 +0,883
Standardfehler 0,002 0,003 0,001 0,002 0,002 0,000 0,011 0,017
Vollständige Rollouts mit DopplerMit Varianzreduktion
648 games, Mersenne-Twister dice gen. with seed 1328410925 and quasi-random dice
Zug: Weltklasse 2-Ply incl. Doppler prune [Weltklasse]
behalte die ersten 0 0 Ply Züge und bis zu 8 zusätzlicher Züge innerhalb der Gewinnerwartung 0,16
Überspringe das Verkürzen für 1-Ply Züge.
Doppler: 2-Ply incl. Doppler prune [Weltklasse]


Kommentar
Gnubg 2pl (-1.095), Woolsey (-0.885)

Tagged with:
Jun 23

From  Robertie, Modern Backgammon,  05-11

Der Spielstand (nach 0 Partie) ist: gnubg 0, ace 0

Zug Nr. 26:ace muss 65 spielen


+-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+
|  ' 1X 2O 3X 3X 2X |   | 2O 2X  '  '  '  ' |
|                   |   |                   |
|                   | 1 |        6 5        |
|  '  '  ' 2O 3O 4O |   | 2X 2O  '  '  ' 2X |
+--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+

Pipcounts: gnubg 119, ace 143
Position ID: cjeDwQDYPQMwDA Match ID: cAkXAGAAMAAA

• ace zieht 8/2 6/1

Achtung: Zug schlecht ( -0,095)

# Ply Zug Gewinnerwartung
  1 2 8/3 8/2 -0,550
  0,351 0,084 0,001 – 0,649 0,148 0,006  
  2 2 22/11 -0,566 ( -0,017)
  0,366 0,107 0,002 – 0,634 0,239 0,010  
3 2 8/2 6/1 -0,645 ( -0,095)
  0,329 0,080 0,001 – 0,671 0,156 0,005  
  4 0 22/16 6/1 -0,743 ( -0,193)
  0,350 0,111 0,002 – 0,650 0,287 0,016  
  5 0 18/13 8/2 -0,952 ( -0,403)
  0,306 0,089 0,001 – 0,694 0,262 0,020  

 

Rolled 65 (-0.087):
     1. Rollout          22/11                        Eq.:  -0.531
       0.348 0.094 0.003 – 0.652 0.246 0.009 CL  -0.445 CF  -0.531
      [0.001 0.001 0.000 – 0.001 0.002 0.001 CL   0.003 CF   0.007]
        Full cubeful rollout with var.redn.
        1296 games, Mersenne Twister dice gen. with seed 2939214018 and quasi-random dice
        Play: world class 2-ply cubeful prune [world class]
        keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
        Skip pruning for 1-ply moves.
        Cube: 2-ply cubeful prune [world class]
     2. Rollout          8/3 8/2                      Eq.:  -0.577 ( -0.046)
       0.339 0.073 0.002 – 0.661 0.181 0.007 CL  -0.414 CF  -0.577
      [0.001 0.001 0.000 – 0.001 0.002 0.001 CL   0.004 CF   0.008]
        Full cubeful rollout with var.redn.
        1296 games, Mersenne Twister dice gen. with seed 2939214018 and quasi-random dice
        Play: world class 2-ply cubeful prune [world class]
        keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
        Skip pruning for 1-ply moves.
        Cube: 2-ply cubeful prune [world class]
*    3. Rollout          8/2 6/1                      Eq.:  -0.650 ( -0.120)
       0.319 0.069 0.002 – 0.681 0.175 0.006 CL  -0.452 CF  -0.650
      [0.001 0.001 0.000 – 0.001 0.003 0.001 CL   0.004 CF   0.009]
        Full cubeful rollout with var.redn.
        1296 games, Mersenne Twister dice gen. with seed 2939214018 and quasi-random dice
        Play: world class 2-ply cubeful prune [world class]
        keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
        Skip pruning for 1-ply moves.
        Cube: 2-ply cubeful prune [world class]
     4. Cubeful 0-ply    22/16 6/1                    Eq.:  -0.522 ( +0.009)
       0.350 0.111 0.002 – 0.650 0.287 0.016
     5. Cubeful 0-ply    22/16 8/3                    Eq.:  -0.656 ( -0.125)
       0.327 0.113 0.002 – 0.673 0.352 0.032

Tagged with:
Jun 23

From Robertie, Modern Backgammon, 05-15

The score (after 0 games) is: gnubg 0, ace 0

move number 38:ace to play 11


+-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+
|  ' 2X 2X 2X 2X 2X | 2 | 1X  '  '  '  ' 1X |
|                   |   |                   |
|                   |   |        1 1        |
| 5O 2O 3X  ' 2O 2O |   |  ' 2O 2O  '  '  ' |
+--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+

Pipcounts: gnubg 125, ace 65
Position ID: tm1BAA7f2GwAAA Match ID: QYkEAGAAMAAA

• ace moves 9/8(2) 6/5(2)

# Ply Zug Gewinnerwartung
1 2 9/7(2) +0,254
0,667 0,076 0,000 – 0,333 0,043 0,000
2 2 9/8(2) 6/5(2) +0,236 ( -0,018)
0,657 0,090 0,000 – 0,343 0,051 0,000
3 2 9/6 9/8 +0,212 ( -0,042)
0,647 0,086 0,000 – 0,353 0,050 0,000
4 2 8/7(2) 5/4(2) +0,103 ( -0,152)
0,610 0,086 0,000 – 0,390 0,071 0,001
5 2 8/6(2) +0,100 ( -0,154)
0,601 0,098 0,001 – 0,399 0,062 0,000

Rolled 11 (+0.270):
*    1. Rollout          9/8(2) 6/5(2)                Eq.:  +0.279
0.653 0.064 0.000 – 0.347 0.042 0.002 CL  +0.341 CF  +0.279
[0.002 0.002 0.000 – 0.002 0.002 0.000 CL   0.005 CF   0.006]
Full cubeful rollout with var.redn.
369 games, Mersenne Twister dice gen. with seed 2939214018 and quasi-random dice
Play: world class 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
2. Rollout          9/6 9/8                      Eq.:  +0.223 ( -0.056)
0.623 0.076 0.000 – 0.377 0.049 0.001 CL  +0.286 CF  +0.223
[0.002 0.002 0.000 – 0.002 0.003 0.000 CL   0.005 CF   0.005]
Full cubeful rollout with var.redn.
368 games, Mersenne Twister dice gen. with seed 2939214018 and quasi-random dice
Play: world class 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
3. Rollout          9/7(2)                       Eq.:  +0.219 ( -0.060)
0.630 0.065 0.000 – 0.370 0.051 0.002 CL  +0.286 CF  +0.219
[0.002 0.002 0.001 – 0.002 0.003 0.001 CL   0.005 CF   0.006]
Full cubeful rollout with var.redn.
368 games, Mersenne Twister dice gen. with seed 2939214018 and quasi-random dice
Play: world class 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
4. Cubeful 2-ply    9/8(2) 5/4(2)                Eq.:  +0.178 ( -0.101)
0.611 0.079 0.000 – 0.389 0.065 0.000
5. Cubeful 2-ply    8/6(2)                       Eq.:  +0.178 ( -0.101)
0.602 0.095 0.001 – 0.398 0.061 0.000

Tagged with:
Jun 23

From Woolsey, BG Encyclopedia, 03-07

The score (after 0 games) is: gnubg 0, ace 0

move no. 19:ace doubles to 2


+--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+
|  ' 2X 2X 3X 2X 2X |   |  '  '  '  '  ' 2O |
|                   |   |                   |
|                   |   |        [2]        |
|  '  ' 2X 2O 3O 3O |   | 3O 2O  '  '  ' 2X |
+-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+

Pipcounts: gnubg 114, ace 104

Position ID: ttuAAQzY3Q0GAA Match ID: cBEAAAAAAAAA

• gnubg takes

Alert: wrong take ( -0,041)!

Doppler-Entscheidung
Rollout cubeless equity +0,567
Gewinnerwartungen mit Doppler:
1. Doppel, Aufgabe +1,000
2. Doppel, Annahme +1,041 +0,041
3. Kein Doppel +0,970 -0,030
Richtige Doppler-Aktion: Doppel, Aufgabe
Details der Rollouts
Gewinn W g W bg Verlust L g L bg Ohne Doppler Mit Doppler
Doppler auf 1 in der Mitte 0,770 0,037 0,001 0,230 0,010 0,000 +0,567 +0,970
Standardfehler 0,001 0,001 0,000 0,001 0,001 0,000 0,002 0,006
Spieler gnubg hat einen Doppler auf 2 0,782 0,032 0,001 0,218 0,009 0,000 +1,178 +1,041
Standardfehler 0,001 0,001 0,000 0,001 0,001 0,000 0,006 0,009
Vollständige Rollouts mit DopplerMit Varianzreduktion
648 games, Mersenne-Twister dice gen. with seed 1328410925 and quasi-random dice
Zug: Weltklasse 2-Ply incl. Doppler prune [Weltklasse]
behalte die ersten 0 0 Ply Züge und bis zu 8 zusätzlicher Züge innerhalb der Gewinnerwartung 0,16
Überspringe das Verkürzen für 1-Ply Züge.
Doppler: 2-Ply incl. Doppler prune [Weltklasse]


Kommentar
Gnubg 2ply (-0.929), Woolsey (-1.021)


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