Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Test Position = Movsesian,S - Korobov,A = Aeroflot Open 2004 [34...Qd5!]

Author: Frank E. Oldham

Date: 17:47:04 06/02/04

Go up one level in this thread


On June 02, 2004 at 16:32:16, José Antônio Fabiano Mendes wrote:

>   Movsesian,S - Korobov,A = Aeroflot Open, second round, 18/Feb/2004
>   [D]6k1/3nr2p/3p2pQ/1pq3P1/p2r4/P2B4/1PP5/1K1R3R b
>In principle 34...b4 is playable, but on 35.Bxg6! Rxd1+ 36.Rxd1 you have to
>respond with 36...Nf8, as 36...hxg6 loses immediately: 37.Qxg6+ Rg7 38.Qe6+.
>After 36...Nf8 37.axb4 Qxb4 38.c3 and 39.Bd3 White has better chances, but Black
>is more or less OK.
>
>From the variation above, one can see that the most dangerous attacking piece
>for Black is the white bishop. This may then help you to find an interesting
>defensive resource: 34...Qd5! 35.Rdf1 (removing the Rook from the pin)
>35...Rxd3! (by eliminating the bishop Black gets counterplay) 36.cxd3 Qxd3+
>37.Ka1 b4. White’s attack has evaporated, and Black stands well with two pawns
>for the exchange.

nice position :-)
crafty19.10 finds this tactic in ply 14
               13    37.71     --   1. ... Ne5
               13    46.83   0.92   1. ... Ne5 2. Rdf1 Rg7 3. Qh3 Re7 4.
                                    Rf6 Nxd3 5. cxd3 Qe5 6. Qh6 Rg7 7.
                                    Rhf1 Qe7 8. R6f3 Qc7
               13->   2:42   0.92   1. ... Ne5 2. Rdf1 Rg7 3. Qh3 Re7 4.
                                    Rf6 Nxd3 5. cxd3 Qe5 6. Qh6 Rg7 7.
                                    Rhf1 Qe7 8. R6f3 Qc7 (s=7)
               14     3:24   1.15   1. ... Ne5 2. Rdf1 Rg7 3. Qh3 Re7 4.
                                    Rf6 b4 5. Qh6 Rg7 6. Rhf1 Qc8 7. Qh3
                                    Rc7 8. Qe3 Rd5 (s=6)
               14     5:16   0.90   1. ... Qd5 2. Rdf1 Rxd3 3. cxd3 b4
                                    4. axb4 Qxd3+ 5. Ka1 a3 6. Qh2 Nc5
                                    7. bxa3 Nb3+ 8. Kb2 Re2+ 9. Qxe2 Qxe2+
                                    10. Kxb3 Qe3+ 11. Kc4 Qxg5 (s=3)
               14->   6:56   0.90   1. ... Qd5 2. Rdf1 Rxd3 3. cxd3 b4
                                    4. axb4 Qxd3+ 5. Ka1 a3 6. Qh2 Nc5
                                    7. bxa3 Nb3+ 8. Kb2 Re2+ 9. Qxe2 Qxe2+
                                    10. Kxb3 Qe3+ 11. Kc4 Qxg5 (s=4)
               15     8:39   0.55   1. ... Qd5 2. Rdf1 Rxd3 3. cxd3 b4
                                    4. axb4 Qxd3+ 5. Ka1 a3 6. Qh2 Nc5
                                    7. bxa3 Qxa3+ 8. Qa2+ Qxa2+ 9. Kxa2
                                    Re2+ 10. Kb1 Ne4 11. Re1 Rxe1+ 12.
                                    Rxe1 Nxg5 (s=3)
               15->  12:26   0.55   1. ... Qd5 2. Rdf1 Rxd3 3. cxd3 b4
                                    4. axb4 Qxd3+ 5. Ka1 a3 6. Qh2 Nc5
                                    7. bxa3 Qxa3+ 8. Qa2+ Qxa2+ 9. Kxa2
                                    Re2+ 10. Kb1 Ne4 11. Re1 Rxe1+ 12.
                                    Rxe1 Nxg5 (s=3)

interestingly, letting it search, it thinks W should respond to Qd5 with Rc1
               16    37:46   0.44   1. ... Qd5 2. Ka1 b4 3. axb4 Ne5 4.
                                    Rdf1 Qa8 5. Rh4 Ng4 6. Rxg4 Rxg4 7.
                                    Bxg6 Rxb4 8. c3 Rc4 9. Bf5 (s=2)
               16->  48:21   0.44   1. ... Qd5 2. Ka1 b4 3. axb4 Ne5 4.
                                    Rdf1 Qa8 5. Rh4 Ng4 6. Rxg4 Rxg4 7.
                                    Bxg6 Rxb4 8. c3 Rc4 9. Bf5
               17   124:18   0.24   1. ... Qd5 2. Rc1 Qe5 3. Rh4 Rd5 4.
                                    Rg4 Qe3 5. Rgg1 Ne5 6. Rge1 Qc5 7.
                                    Qh1 Rc7 8. Be4 Rd2 9. Rf1 Re2
               17-> 145:07   0.24   1. ... Qd5 2. Rc1 Qe5 3. Rh4 Rd5 4.
                                    Rg4 Qe3 5. Rgg1 Ne5 6. Rge1 Qc5 7.
                                    Qh1 Rc7 8. Be4 Rd2 9. Rf1 Re2

Frank



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.