Robertie remarks that blue has a solid lead in the race and the best way to preserve it is 13/9 10/9. But there are 10 POH rolls for out blot on white's 5pt. Those are costly; time to anchor up.
  White is Player 2
score: 0 pip: 178  Unlimited Game Jacoby  pip: 160 score: 0
Blue is Player 1  
XGID=baECAcDbcdAA:0:0:1:41:0:0:1:0:10 
Blue to play 41 
1.  Rollout^{1}  24/20 10/9  eq: +0.115 
 Player: Opponent:  52.06% (G:13.70% B:0.53%) 47.94% (G:8.74% B:0.34%)  Conf.: ± 0.004 (+0.111...+0.119)  [100.0%] Duration: 4 hours 56 minutes 

2.  Rollout^{1}  13/9 10/9  eq: +0.102 (0.013) 
 Player: Opponent:  52.35% (G:14.93% B:0.83%) 47.65% (G:12.45% B:0.52%)  Conf.: ± 0.004 (+0.098...+0.105)  [0.0%] Duration: 4 hours 17 minutes 

3.  Rollout^{2}  24/20 6/5  eq: +0.055 (0.060) 
 Player: Opponent:  50.45% (G:12.80% B:0.50%) 49.55% (G:9.79% B:0.37%)  Conf.: ± 0.012 (+0.042...+0.067)  [0.0%] Duration: 28 minutes 07 seconds 


^{1} 31104 Games rolled with Variance Reduction. Dice Seed: 94782038 Moves: 3ply, cube decisions: XG Roller
^{2} 2592 Games rolled with Variance Reduction. Dice Seed: 14727302 Moves: 3ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10
In fact, the 10 POH numbers are so strong for white that 13/9 10/9 does not make it to the top even at DMP:
  White is Player 2
score: 0 pip: 178  1 point match  pip: 160 score: 0
Blue is Player 1  
XGID=baECAcDbcdAA:0:0:1:41:0:0:0:1:10 
Blue to play 41 
1.  Rollout^{1}  24/20 10/9  eq: +0.038 
 Player: Opponent:  51.88% (G:16.40% B:1.78%) 48.12% (G:10.31% B:1.00%)  Conf.: ± 0.001 (+0.037...+0.039)  [99.7%] Duration: 2 hours 58 minutes 

2.  Rollout^{1}  13/9 10/9  eq: +0.035 (0.002) 
 Player: Opponent:  51.77% (G:19.55% B:3.05%) 48.23% (G:13.54% B:1.65%)  Conf.: ± 0.001 (+0.034...+0.037)  [0.3%] Duration: 2 hours 57 minutes 

3.  Rollout^{2}  24/20 6/5  eq: +0.010 (0.027) 
 Player: Opponent:  50.52% (G:14.28% B:1.86%) 49.48% (G:12.59% B:1.26%)  Conf.: ± 0.003 (+0.007...+0.014)  [0.0%] Duration: 22 minutes 46 seconds 


^{1} 46656 Games rolled with Variance Reduction. Dice Seed: 94782038 Moves: 3ply, cube decisions: XG Roller
^{2} 5184 Games rolled with Variance Reduction. Dice Seed: 14727302 Moves: 3ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10, MET: Kazaross XG2
Naturally, 13/9 10/9 is a blunder at GS:
  White is Player 2
score: 0 pip: 178  2 point match Crawford  pip: 160 score: 1
Blue is Player 1  
XGID=baECAcDbcdAA:0:0:1:41:1:0:1:2:10 
Blue to play 41 
1.  Rollout^{1}  24/20 10/9  eq: 0.140 
 Player: Opponent:  51.24% (G:16.77% B:1.85%) 48.76% (G:8.24% B:0.53%)  Conf.: ± 0.004 (0.144...0.136)  [100.0%] Duration: 18 minutes 11 seconds 

2.  Rollout^{1}  24/20 6/5  eq: 0.176 (0.036) 
 Player: Opponent:  49.31% (G:14.24% B:1.62%) 50.69% (G:8.13% B:0.63%)  Conf.: ± 0.004 (0.180...0.173)  [0.0%] Duration: 19 minutes 25 seconds 

3.  Rollout^{2}  13/9 10/9  eq: 0.231 (0.091) 
 Player: Opponent:  52.07% (G:21.10% B:4.46%) 47.93% (G:13.62% B:1.26%)  Conf.: ± 0.006 (0.237...0.225)  [0.0%] Duration: 8 minutes 58 seconds 


^{1} 5184 Games rolled with Variance Reduction. Dice Seed: 28412616 Moves: 3ply, cube decisions: XG Roller
^{2} 2592 Games rolled with Variance Reduction. Dice Seed: 28412616 Moves: 3ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10, MET: Kazaross XG2
And is the right move at GG:
  White is Player 2
score: 1 pip: 178  2 point match Crawford  pip: 160 score: 0
Blue is Player 1  
XGID=baECAcDbcdAA:0:0:1:41:0:1:1:2:10 
Blue to play 41 
1.  Rollout^{1}  13/9 10/9  eq: +0.324 
 Player: Opponent:  53.81% (G:12.41% B:1.52%) 46.19% (G:12.19% B:1.24%)  Conf.: ± 0.004 (+0.320...+0.329)  [100.0%] Duration: 16 minutes 13 seconds 

2.  Rollout^{1}  24/20 10/9  eq: +0.306 (0.019) 
 Player: Opponent:  53.28% (G:12.01% B:1.03%) 46.72% (G:10.01% B:0.98%)  Conf.: ± 0.004 (+0.302...+0.310)  [0.0%] Duration: 16 minutes 40 seconds 

3.  Rollout^{2}  24/20 6/5  eq: +0.267 (0.057) 
 Player: Opponent:  51.16% (G:12.21% B:1.09%) 48.84% (G:13.38% B:1.09%)  Conf.: ± 0.004 (+0.263...+0.272)  [0.0%] Duration: 19 minutes 15 seconds 


^{1} 5184 Games rolled with Variance Reduction. Dice Seed: 28412616 Moves: 3ply, cube decisions: XG Roller
^{2} 5184 Games rolled with Variance Reduction. Dice Seed: 14727302 Moves: 3ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10, MET: Kazaross XG2
Finally, can we make 13/9 10/9 to be the best move? Sure, just relieve a little pressure on our 20pt blot. It's white's 11pt that makes the difference.
  White is Player 2
score: 0 pip: 182  Unlimited Game Jacoby  pip: 160 score: 0
Blue is Player 1  
XGID=baECAeDcdAA:0:0:1:41:0:0:1:0:10 
Blue to play 41 
1.  Rollout^{1}  13/9 10/9  eq: +0.294 
 Player: Opponent:  56.44% (G:16.74% B:0.96%) 43.56% (G:10.19% B:0.42%)  Conf.: ± 0.008 (+0.285...+0.302)  [100.0%] Duration: 43 minutes 08 seconds 

2.  Rollout^{1}  24/20 10/9  eq: +0.255 (0.038) 
 Player: Opponent:  55.60% (G:14.87% B:0.64%) 44.40% (G:8.38% B:0.34%)  Conf.: ± 0.008 (+0.247...+0.263)  [0.0%] Duration: 47 minutes 43 seconds 

3.  Rollout^{2}  24/20 6/5  eq: +0.153 (0.140) 
 Player: Opponent:  53.42% (G:13.09% B:0.49%) 46.58% (G:9.18% B:0.35%)  Conf.: ± 0.015 (+0.138...+0.169)  [0.0%] Duration: 13 minutes 22 seconds 


^{1} 5184 Games rolled with Variance Reduction. Dice Seed: 28412616 Moves: 3ply, cube decisions: XG Roller
^{2} 1296 Games rolled with Variance Reduction. Dice Seed: 37291974 Moves: 3ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10