Author: Richard Pijl
Date: 00:02:00 04/28/04
Go up one level in this thread
>Position after 21. Qc1: [d] r1b3k1/pp4pp/4p3/3p4/4nP2/P1P1q3/4B2P/R1Q1K2R b - -
>
>How long does your program take to find not only the obvious Qf2+ (instead of
>taking the pawn), but the whole correct line: 21...Qf2+ 22. Ke1 Bd7!
>(threatening Ba4+) 23. a4 Rc8! (idea being Ra3 Bxa4+!) Takes crafty about 4
>seconds to see Rc8 from this position. In the game, I saw up to Ra3, but missed
>the Bxa4 idea. Unfortunate, but a good lesson to learn from. Andrew
The Baron 1.3.0 needs 12 seconds to finally settle for 23..Rc8, although it
finds(and loses it) already at 0.33 sec.
The other moves were selected from the start.
ply time nodes score pv
4(11). 0:00.06 12727 +2.72 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-f8 Rh1-f1
5(12)& 0:00.11 27394 +2.72 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-f8 Rh1-f1
Qf2xh2
5(12). 0:00.13 32028 +2.72 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-f8 Rh1-f1
Qf2xh2
6(13)& 0:00.33 88670 +2.82 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-c8 c3-c4
d5xc4 Qc1-b2
6(13). 0:00.39 104966 +2.82 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-c8 c3-c4
d5xc4 Qc1-b2
7(13)+ 0:00.59 154765 +3.17 Qe3-f2 (Ke1-d1) (Bc8-d7) (a3-a4) (d5-d4) (
Be2-c4)
(d4xc3) (Ra1-a2) (Qf2-d4) (Bc4-d3) (Qd4xd3
)
7(15)& 0:00.97 261346 +3.76 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 d5-d4 Rh1-f1
Ne4xc3 Qc1xc3 Qf2xf1 Be2xf1 d4xc3
7(15). 0:01.02 283464 +3.76 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 d5-d4 Rh1-f1
Ne4xc3 Qc1xc3 Qf2xf1 Be2xf1 d4xc3
8(16)- 0:02.34 664031 +3.41 Qe3-f2 (Ke1-d1) (Bc8-d7) (a3-a4) (d5-d4) (
Rh1-f1)
(Ne4xc3) (Qc1xc3) (Qf2xf1) (Be2xf1) (Kg8-f
7) (Qc3xd4)
8(16)& 0:02.77 785700 +3.22 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-c8 Rh1-f1
Ne4xc3 Qc1xc3 Qf2xf1 Be2xf1 Rc8xc3 Kd1-d2
8(16). 0:02.89 825058 +3.22 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-c8 Rh1-f1
Ne4xc3 Qc1xc3 Qf2xf1 Be2xf1 Rc8xc3 Kd1-d2
9(17)+ 0:04.05 1127335 +3.57 Qe3-f2 (Ke1-d1) (Bc8-d7) (a3-a4) (d5-d4) (
Qc1-b2)
(d4xc3) (Qb2-a2) (Qf2xf4) (Kd1-c2) (Ra8-d8
)
9(19)& 0:06.00 1707354 +3.68 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 d5-d4 Rh1-f1
Ne4xc3 Qc1xc3 Qf2xf1 Be2xf1 d4xc3 Kd1-c2
Ra8-c8
9(19). 0:06.44 1846627 +3.68 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 d5-d4 Rh1-f1
Ne4xc3 Qc1xc3 Qf2xf1 Be2xf1 d4xc3 Kd1-c2
Ra8-c8
10(21)& 0:12.63 3677333 +3.84 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-c8 Rh1-f1
Ne4xc3 Qc1xc3 Qf2xf1 Be2xf1 Rc8xc3 Kd1-e1
Rc3-c2 Bf1-e2
10(21). 0:13.39 3947144 +3.84 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-c8 Rh1-f1
Ne4xc3 Qc1xc3 Qf2xf1 Be2xf1 Rc8xc3 Kd1-e1
Rc3-c2 Bf1-e2
11(23)& 0:33.05 9797396 +3.69 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-c8 Rh1-f1
Ne4xc3 Qc1xc3 Qf2xf1 Be2xf1 Rc8xc3 Bf1-b5
Bd7-c6 Kd1-d2 d5-d4
11(23). 0:37.41 11109331 +3.69 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-c8 Rh1-f1
Ne4xc3 Qc1xc3 Qf2xf1 Be2xf1 Rc8xc3 Bf1-b5
Bd7-c6 Kd1-d2 d5-d4
12(24)& 2:02.64 34652566 +3.75 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-c8 Rh1-f1
Ne4xc3 Qc1xc3 Qf2xf1 Be2xf1 Rc8xc3 Bf1-b5
Bd7-c6 Kd1-d2 Rc3-h3 Ra1-h1
12(24). 2:12.78 37517606 +3.75 Qe3-f2 Ke1-d1 Bc8-d7 a3-a4 Ra8-c8 Rh1-f1
Ne4xc3 Qc1xc3 Qf2xf1 Be2xf1 Rc8xc3 Bf1-b5
Bd7-c6 Kd1-d2 Rc3-h3 Ra1-h1
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