Robertie Position 228

There are four very close plays here; after 15552 games it is still not clear which one GNU likes best. Two of the four options are not even mentioned by Robertie.

# Ply Move Equity
• 1 R 13/8 +0.019
 
0.5060.1280.005-0.4940.1250.005 +0.015 +0.019
0.0010.0010.000-0.0010.0010.000 0.002 0.004
  
  Full cubeful rollout with var.redn.  
  15552 games, Mersenne Twister dice gen. with seed 81726354 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 20/15 +0.018 ( -0.001)
 
0.5070.1320.006-0.4930.1380.005 +0.010 +0.018
0.0010.0010.000-0.0010.0010.000 0.002 0.004
  
  Full cubeful rollout with var.redn.  
  15552 games, Mersenne Twister dice gen. with seed 81726354 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 24/20 22/21 +0.015 ( -0.004)
 
0.5050.1220.005-0.4950.1280.005 +0.005 +0.015
0.0010.0010.000-0.0010.0010.000 0.002 0.004
  
  Full cubeful rollout with var.redn.  
  15552 games, Mersenne Twister dice gen. with seed 81726354 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]  
  4 R 22/21 20/16 +0.012 ( -0.007)
 
0.5070.1280.005-0.4930.1360.006 +0.005 +0.012
0.0010.0010.000-0.0010.0010.000 0.002 0.004
  
  Full cubeful rollout with var.redn.  
  15552 games, Mersenne Twister dice gen. with seed 81726354 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]