The Power of Two Bishops

Garry Kasparov demonstrates for us the power of the Bishop Pair.  Two Bishops working in tandem constitute one of mightiest forces in chess.

G. KASPAROV vs. J. SPEELMAN
Barcelona, 1989

1. d4, d6
2. e4, g6
3. c4, e5

An attempt by Black to destroy White's central pawn structure.

4. Nf3, exd4
5. Nxd4, Bg7
6. Nc3, Nc6
7. Be3, Nge7
8. h4!?, h6
9. Be2, f5
10. exf5, Nxf5
11. Nxf5, Bxf5
12. Qd2, Qd7
13. 0-0, 0-0-0
14. b4!, Nxb4?!

Black took the poisoned pawn.  Now the fight tension is increased.

15. Nb5!, Nc2

Black does not like 15....Bxa1, 16. Qxb4 Bg7, 17. Nxa7+....

16. Bf3! d5
17. Bxd5, Nxa1
18. Nxa7+, Kb8
19. Qb4! ....

Now, White threatens mate at b7.

19. .... Qxd5

Black has no choice.  If 19....b6, then 20. Bxb6 cxb6, 21. Qxb6+ with a mating attack.  If 19....c6, then 20. Bxc6 Qf7, 21. Bf4+ Ka8, 22. Qa5! and mate next move.

20. cxd5, Nc2
21. Qa5, Nxe3
22. fxe3, Rhe8
23. Nb5, Rxd5

If 23....Re7, then 24. d6! Rxd6, 25. Nxd6 cxd6, 26. Qd8+ and White's attack becomes overwhelming.

24. Qxc7+ Ka8
25. Qa5+, Resigns

Black loses after 25....Kb8, 26. Qa7+ Kc8, 27. Qa8+ Kd7, 28. Qxb7+ Ke6, 29. Qc6+ and White captures either Rook.