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Subject: Re: Tactical position

Author: Normand M. Blais

Date: 14:16:53 08/27/05

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Hi,

I'm sorry. It is mate in 8. But my program tells another story: mate in 10? For
some reasons, it prefers 6.Qf1+ than 6.Qf3+. Anyone?

Thanks,

N.B.

[D]1n2q3/7p/p4rp1/3Q4/2P2pNk/4BR2/2P4P/7K b - - 5 45

Alex 1.67.01h (Winboard-UCI)

sb 1n2q3/7p/p4rp1/3Q4/2P2pNk/4BR2/2P4P/7K b - -
932068 466033
21 10
Black[1]:st 300
Black[1]:post
Black[1]:go
Depth Score   Time     Nodes  PV
  1   -0.12      0       673  f6f5 g4f6
  2   -0.12      0      1761  f6f5 g4f6 f5f6
  3   -0.62      0      3065  f6f5
  3   -1.50      0      7377  f6f5 g4f6 f5d5 f6e8
  4   -2.00      0     17500  f6f5
  4   -4.00      2     54054  f6f5
  4   -6.00      3     71359  f6f5
  4   -6.05      3     75622  f6f5 f3h3 h4h3 d5g2 h3h4 e3f2 h4g5 h2h4 g5h5 g4f6
h5h6 f6e8
  5   -6.12      5    115100  f6f5 f3h3 h4h3 d5f3 h3h4 e3f2 h4g5 h2h4 g5h5 g4f6
h5h6 f6e8 a6a5 c4c5
  6   -6.62     11    257188  f6f5
  6   -8.62     16    380215  f6f5
  6  -10.62     75   1768160  f6f5
  6  -11.90    100   2366324  f6f5 f3h3 h4h3 d5g2 h3h4 g4f6 f5g5 e3f2 g5g3 h2g3
h4g5 f6e8 a6a5
  7  -12.40    147   3514825  f6f5
  7  -14.40    181   4304534  f6f5
  7  -16.40    247   5855776  f6f5
  7  -18.40    255   6097406  f6f5
  7  -20.40    264   6391849  f6f5
  7  -299.82    415  10533109  f6f5 f3h3 h4h3 d5g2 h3h4 g4f6 f5g5 g2f2 h4h3 f2f1
 h3h4 e3f2 g5g3 f2g3 f4g3 f1f4 h4h3 f4g3
Mate in 10 moves
best:   f6f5
ponder: f3h3
1....f6f5
IITD= 1410
Elapse time: 41.578 sec Nodes: 10533109 First High: 95% NPS: 253K
extensions-> check: 1538870 one reply: 200222 threat: 2393
             passed pawn: 0 recapture: 0
   hashing-> raw hits: 16%(583161/3453174)   good hits: 53%(311428)
 exact hits: 0%(1069)   lower hits: 88%(275485)   upper hits: 11%(34874)




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