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Subject: Re: Tactical test position (Nxf7)

Author: Slobodan R. Stojanovic

Date: 12:47:46 05/08/03

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On May 08, 2003 at 10:01:40, Richard Pijl wrote:

However, the sequence is almost correct:
1.Nxf7, Kxf7 2.g4 Bh7 3.Qxe6+ Ke8 4.Qf7+ Kd8 5.Rhe1

This one should be estimated wining for white:
r2k2nr/ppqnbQpb/2p4p/8/2BP2P1/2N5/PPPB1P1P/2KRR3 b - - 0 5

Test Baron now.
Sl.


>On May 08, 2003 at 09:26:42, stuart taylor wrote:
>
>>
>>It's certainly (to the naked eye) a piece for 2 pawns and more, if not a good
>>bit more! It can't be TOO much of a mistake!
>>If there were serious looking counter attacking ideas for Black, then it might
>>need more investigation.
>>S.Taylor
>
>Baron, like the King, initially selects Nxf7 and drops it after 40 seconds (on a
>PIII-500) for Bf4. The reason seems to be that it values Bf4 a little better
>than Nxf7, not that Nxf7 is incorrect.
>
>I forced Nxf7 to check if there was a problem and I saw the score drop
>(perspective of white from 122 to 46, and after more than an hour (again, on the
>PIII-500) I got a fail high. But no convincing winning scores (yet).
>
> ply       time     nodes  score  pv
>
>  5( 9)-      0     15129   -109  e8f7 g2g4 f5h7 c4e6 f7e8 h1e1
>  5(11)&      0     18763   -122  e8f7 g2g4 f5h7 c4e6 f7e8 h1e1
>  5(11).      0     20409   -122  e8f7 g2g4 f5h7 c4e6 f7e8 h1e1
>  6(12)&      0     37976   -114  e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 f7g7 e7f6
>  6(12).      0     48971   -114  e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 f7g7 e7f6
>  7(15)&      2    130800   -111  e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 d2f4 e7g5
>f4g5 h6g5 f7g7
>  7(15).      2    202327   -111  e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 d2f4 e7g5
>f4g5 h6g5 f7g7
>  8(19)+      5    388558    -76  e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 d2f4 c7f4
>f7f4 e7g5 f4e3
>  8(19)&      8    553021    -57  e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 c7d8
>f5h7
>  8(19).      9    667706    -57  e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 c7d8
>f5h7
>  9(23)&     29   1928019    -67  e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 d7f8
>f5h7 f8h7
>  9(23).     31   2098188    -67  e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 d7f8
>f5h7 f8h7
> 10(26)&    112   7159794    -46  e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 d7f8
>f5h7 h8h7 c3e4
> 10(26).    120   7630546    -46  e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 d7f8
>f5h7 h8h7 c3e4
> 11(31)&    395  24578175    -60  e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 f7g7 e7f6
>g7f7 c7d6 f7e6 d6e6 c4e6
> 11(31).    432  27077394    -60  e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 f7g7 e7f6
>g7f7 c7d6 f7e6 d6e6 c4e6
> 12(33)&   1110  68274645    -59  e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 c7d6
>e1e6 d6d4 d2h6 d4g4
> 12(33).   1226  75878266    -59  e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 c7d6
>e1e6 d6d4 d2h6 d4g4
> 13(34)-   2061 128125614    -94  e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 d7b6
>c4b3 c7h2 d4d5 b6d7
> 13(36)&   4119 251648743    -93  e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 g7g5
>d4d5 a7a6 d5c6 b7c6 c3e4
> 13(36).   4119 251648790    -93  e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 g7g5
>d4d5 a7a6 d5c6 b7c6 c3e4
>
>Richard.



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