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Shredder 12 Question Pb move

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Captainbob767
Captainbob767
Feb 5, 2010
0
#1

I decided to upgrade my Shredder Classic to the Shredder 12. I have one question that I cannot figure out and it doesn't seem to be in the manual In the analysis window where it lists the best moves and all the times and depth and then it will list either Pb move or just Pb and I can't figure out what that means. Any help would be appreciated. 

 

 

Engine: Shredder 12 UCI (64 MB)

by Stefan Meyer-Kahlen

 

 

Shredder 12 UCI by Stefan Meyer-Kahlen, www.shredderchess.com
CPU0: GenuineIntel x86 Family 15 Model 4 Stepping 3 3391 MHz
GUI: Tablebases with 0 pieces found! [Cache: 1 MB + internal 0.00 MB]
GUI: Shredderbases with 0 pieces found (0 MB)
Engine: Shredder 12 UCI (64 MB)
shredderbases with 4 pieces found (1 MB)
  3/11 0:00 -0.84 2.Re3 Nfg6 3.Bd3 (1.077) 34
best move: Rc3-e3 time: 0:19.218 min  n/s: 90  nodes: 1.727 
pb move: 2...Nfg6
PB:   4/10 0:00 -0.49 3.Rf5 Rc5 4.Nd6 Rf8 (2.454) 163
best move: Rf2-f5 time: 0:24.359 min  n/s: 186  nodes: 4.511 
  4/10 0:00 -0.50 2...Nfg6 3.Rf5 Rc5 4.Rf7 (1.940) 121
best move: Nf8-g6 time: 0:04.359 min  n/s: 1.089  CPU 0.3%   n/s(1CPU): 363.000  nodes: 4.664 
pb move: