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Subject: Re: To avoid move

Author: Eelco de Groot

Date: 07:34:53 11/14/04

Go up one level in this thread


On November 14, 2004 at 05:36:40, Kurt Utzinger wrote:

>
>[D]r3kb1r/pp2qppp/5p2/3p1b2/5B1P/6Q1/PPP1NPP1/2KR3R b kq - 0 14
>From the game SmarThink 0.17 vs Delfi 4.5 (AT 2004 90m+30s)
>Which engines do avoid 14...Bxc2?
>
>
>[Event "AT 2004  Ath 1.3/64  90m+30s"]
>[Site "Zurich"]
>[Date "2004.08.26"]
>[Round "2.6"]
>[White "SmarThink 0.17a"]
>[Black "Delfi 4.5"]
>[Result "1-0"]
>[ECO "B10"]
>[Annotator "Avoid move"]
>[PlyCount "55"]
>
>1. e4 {Comments/Kommentare: Kurt Utzinger} 1... c6 2. Nc3 d5 {
>Black last book move / Schwarz letzter Buchzug} 3. Qf3 d4 4. Bc4 {
>White last book move / Weiss letzter Buchzug} 4... Nf6 {
>Easier is 4...e6 / Einfacher ist 4...e6} 5. e5 dxc3 6. exf6 cxd2+ {This is wron
>g and only improves White's development. Stronger is therefore 6...exf6 or
>even 6...gxf6 / Das ist falsch und dient nur zur Verbesserung der weissen
>Entwicklung, weshalb 6...exf6 oder gar 6...gxf6 vorzuziehen sind} 7. Bxd2 exf6
>8. O-O-O {White has a very comfortable position / Weiss hat die bedeutend
>komfortablere Stellung} 8... Nd7 9. Qg3 Nb6 10. Bf4 Qe7 11. Bb3 {
>Even stronger looks 11.Bd6 / Gar staerker scheint 11.Ld6} 11... Nd5 {
>Other moves are worse / Andere Zuege sind schlechter} 12. Bxd5 cxd5 13. h4 Bf5
>14. Ne2 Bxc2 {? A wrong decision making things easy for White but at the same
>time a good test position for a "to avoid move" / Ein falscher Entscheid,
>wonach es Weiss leicht hat, aber auch eine gute Teststellung fuer das Thema
>"Nicht diesen Zug"} 15. Kxc2 Qxe2+ 16. Kb1 Bb4 {
>To prevent Rhe1 / Um The1 zu verhindern} 17. Bd6 {! Delfi has perhaps
>overlooked this move / Vielleicht hat Delfi diesen Zug uebersehen} 17... Bxd6
>18. Qxd6 {The position is now hopeless for Black / Die schwarze Stellung ist
>nun hoffnungslos} 18... Rd8 19. Qa3 Qe4+ 20. Ka1 Kd7 21. Rhe1 Qc4 22. Qe7+ Kc8
>23. Rc1 Rd7 24. Qe3 b6 25. Rxc4+ dxc4 26. Qf3 Kc7 27. Qg3+ Kb7 28. Qxg7 1-0

I think this one is too tough for Pro Deo S&D 6_7e3, if I take the position
three plies down, after 16.Kb1, it needs 14 ply and a fail-low to see that Black
has a bad position.

I used only 13 Mb HT, Celeron 500, but that does not make much difference I
think.

Last move 16.Kb1

[D]r3kb1r/pp3ppp/5p2/3p4/5B1P/6Q1/PP2qPP1/1K1R3R b kq - 1 1

 00:00:00   1.00  1.43  16..O-O-O
 00:00:00   1.09  1.91  16..Rd8
 00:00:00   2.00  0.32  16..Rd8 17.Rhe1
 00:00:00   2.13  1.58  16..Rc8 17.Rxd5 b5
 00:00:00   3.00  -2.78  16..Rc8 17.Rhe1 Qe6 18.Rxe6 fxe6
 00:00:00   3.03  -1.28  16..O-O-O 17.Rc1 Kd7 18.Bc7
 00:00:00   3.04  0.36  16..Qe4 17.Ka1 Rc8 18.Rhe1
 00:00:00   4.00  -0.28  16..Qe4 17.Ka1 Bb4 18.Qxg7 Rf8 19.Qxf6 Qxg2
 00:00:00   5.00  -0.28  16..Qe4 17.Ka1 Bb4 18.Qxg7 Rf8 19.Qxf6 Qxg2
 00:00:00   6.00  -0.20  16..Qe4 17.Ka1 Bb4 18.Qxg7 Rf8 19.g3 Rc8 20.Qxf6
 00:00:02   7.00  -0.14  16..Qe4 17.Ka1 Bb4 18.Qxg7 Rf8 19.g3 Rc8 20.Qxf6
                         b5
 00:00:02   8.00  -0.14  16..Qe4 17.Ka1 Bb4 18.Qxg7 Rf8 19.g3 Rc8 20.Qxf6
                         b5
 00:00:05   9.00  -0.39  16..Qe4 17.Ka1 Bb4 18.Qxg7 Rf8 19.Bh6 Rc8
                         20.Qxf6
 00:00:13  10.00  -0.72  16..Qe4 17.Ka1 Bb4 18.Qxg7 Ke7 19.Qh6 Qg6
                         20.Rxd5 Qxh6 21.Bxh6
 00:00:19  10.01  -0.62  16..Bb4 17.Qxg7 Ke7 18.Bd6 Kxd6 19.Qxf6 Kc5
                         20.a3 Bd2 21.b3
 00:01:08  11.00  -0.39  16..Bb4 17.a3 Qe4 18.Ka1 O-O
 00:04:07  12.00  -0.70  16..Bb4 17.Bd6 g6 18.Qb3 a5 19.Qxd5 Rd8 20.Qxb7
                         Rxd6 21.Rxd6 Bxd6
 00:09:30  13.00  -0.70  16..Bb4 17.Bd6 g6 18.Qb3 a5 19.Qxd5 Rd8 20.Qxb7
 00:41:21  14.00  -1.68  16..Bb4 17.Bd6 Rg8 18.f3 Bd2 (429224595 nodes)


00:09:32.8	-0,69	13	99695600	Bb4 Bd6 g6 Qb3 a5 Qxd5 Rd8 Qxb7
00:41:24.2	-1,68	14	429224595	Bb4 Bd6 Rg8 f3 Bd2




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