Author: Paulo Soares
Date: 09:54:26 05/21/00
Go up one level in this thread
On May 21, 2000 at 06:27:09, Harald Faber wrote:
>[D]1r2kr2/p4p2/4pQ1p/2RpP1p1/3Pn2P/3N4/q4PP1/2R3K1 w - -
>
>(Sutovsky-Glek)
>
>This position appeared in a German GM-tournament where the game went on with:
>
>1.Rc7!? Nxf6 2.exf6 Qd2 3.Re7+ Kd8 4.Rcc7 Qxd3 1/2 because of perpetual check on
>the 7th row.
>
>Question is: Is this queen sac correct=can black play for a win after the 2nd
>white move or can black play for a win and play a better move than 2...Qd2?
>
>Juniors eval decreases from about +2.4 at d=17 down to +1.4 at d=21 for 2...Qa4
>3.Ne5 Kd8 in favour of black. But counting the material black should be up 4-5
>and not 1.4 so Junior sees some compensation... :-)
I didn't get to see a clear winning position for blacks after 2 ...Qa4, but
I think that 2 ...Qa6!? it's a winner move. Therefore, the sac it's not good.
1. Rc7 Nxf6 2. exf6 Qa6 {!?} 3. Ne5 (3. Re7+ Kd8 4. Ne5 Rb7 5. Nc6+ Qxc6 6.
Rxc6 Rxe7 7. fxe7+ Kxe7 8. Rc7+ Kf6 9. Rxa7 Rc8 10. Ra1 Rc4 11. Rd1 Kf5 12.
hxg5 hxg5 13. Rd3 g4 {-+}) (3. R1c6 Qxc6 {-+}) 3... Qd6 4. Rxa7 Qd8 5. Re7+ (5.
Nc6 Rc8 6. Re7+ Qxe7 7. fxe7 Rg8 8. Rb1 (8. hxg5 Rxg5 {-+}) 8... Rg7 9. Rb6
gxh4 10. Kh2 Rg4 {-+}) 5... Qxe7 6. fxe7 Kxe7 7. Rc7+ (7. Nc6+ Kf6 8. Nxb8 Rxb8
9. hxg5+ hxg5 10. f3 Rb2 11. Rd1 Kf5 12. Rd3 Kf4 13. Kh2 Re2 14. Rb3 Rd2 15.
Rb4 Ke3 16. Rb7 Rxd4 17. Rxf7 Rf4 18. Rg7 d4) 7... Kf6 8. Nd7+ (8. hxg5+ hxg5
9. Kf1 Rbc8 {-+}) 8... Kg7 9. Nxf8 Kxf8 10. Rc3 Rb1+ 11. Kh2 Rd1 12. hxg5 (12.
Rg3 f6 {-+}) 12... hxg5 13. Rg3 f6 14. Rg4 Kf7 {-+}
Paulo Soares, from Brazil
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