Robertie Position 56

A 2592-game rollout suggests that GNU prefers 15/10 13/3 8/3, but a longer (15552-game) rollout indicates that GNU thinks the plays are about the same. First, here is the shorter rollout.

# Ply Move Equity
• 1 R 15/10 13/3 8/3 +0.278
 
0.5590.1820.011-0.4410.1170.005 +0.190 +0.278
0.0010.0010.001-0.0010.0010.000 0.004 0.010
  
  Full cubeful rollout with var.redn.  
  2592 games, Mersenne Twister dice gen. with seed 840677922 and quasi-random dice  
  Play: supremo 2-ply cubeful prune [world class]  
  keep the first 0 0-ply moves and up to 16 more moves within equity 0.32  
  Skip pruning for 1-ply moves.  
  Cube: 2-ply cubeful prune [world class]  
  2 R 13/3(2) +0.250 ( -0.028)
 
0.5560.1820.013-0.4440.1180.005 +0.183 +0.250
0.0010.0010.000-0.0010.0010.000 0.003 0.008
  
  Full cubeful rollout with var.redn.  
  2592 games, Mersenne Twister dice gen. with seed 840677922 and quasi-random dice  
  Play: supremo 2-ply cubeful prune [world class]  
  keep the first 0 0-ply moves and up to 16 more moves within equity 0.32  
  Skip pruning for 1-ply moves.  
  Cube: 2-ply cubeful prune [world class]  
  3 R 15/5 13/8(2) +0.164 ( -0.115)
 
0.5380.1580.009-0.4620.1190.004 +0.120 +0.164
0.0010.0010.000-0.0010.0010.000 0.003 0.008
  
  Full cubeful rollout with var.redn.  
  2592 games, Mersenne Twister dice gen. with seed 840677922 and quasi-random dice  
  Play: supremo 2-ply cubeful prune [world class]  
  keep the first 0 0-ply moves and up to 16 more moves within equity 0.32  
  Skip pruning for 1-ply moves.  
  Cube: 2-ply cubeful prune [world class]  


Here is the longer rollout.

# Ply Move Equity
  1 R 15/10 13/3 8/3 +0.260
 
0.5570.1810.011-0.4430.1160.005 +0.186 +0.260
0.0000.0010.000-0.0000.0000.000 0.001 0.003
  
  Full cubeful rollout with var.redn.  
  15552 games, Mersenne Twister dice gen. with seed 838457835 and quasi-random dice  
  Play: 2-ply cubeful prune [world class]  
  keep the first 0 0-ply moves and up to 12 more moves within equity 0.16  
  Skip pruning for 1-ply moves.  
  Cube: 2-ply cubeful prune [world class]  
• 2 R 13/3(2) +0.256 ( -0.003)
 
0.5560.1840.013-0.4440.1180.005 +0.186 +0.256
0.0000.0010.000-0.0000.0000.000 0.001 0.003
  
  Full cubeful rollout with var.redn.  
  15552 games, Mersenne Twister dice gen. with seed 838457835 and quasi-random dice  
  Play: 2-ply cubeful prune [world class]  
  keep the first 0 0-ply moves and up to 12 more moves within equity 0.16  
  Skip pruning for 1-ply moves.  
  Cube: 2-ply cubeful prune [world class]