Buffalo Open, 1973.
White: J. Tisdall
Caro-Kann Defense.
Black: Dr. E. W. Marchand.
1. e4 c6; 2. d4 d5; 3. e5.
This was a favorite line of Edward Lasker.
3...Bf5; 4. c4.
This modern line is considered sharpest.
4...dc.
More usual is 4...e6 first, but Marchand follows the Petrosian rule of minimizing his opponent's options.
5. B:c4 e6; 6. Ne2 Nd7; 7. Ng3?
7. Nc3 would have prevented the following exchanges.
7...B:b1; 8. R:b1 Bb4+!
Black picks the shortest route to equality.
9. Bd2 Qe7?!
This blocks the King's Knight. 9...Bd2 would have been more consistent.
10. O-O B:d2; 11. Q:d2 Rd8.
Threatening 12...N:e5.
12. Qc3 Nh6.
The Knight will get into play anyway.
13. f4 Nb6; 14. Bb3 O-O; 15. Rbd1 Nd5; 16. Qf3 Qh4; 17. h3.
On g4 the Knight would have attacked e3 as well as h2.
17...Nf5; 18. N:f5 ef; 19. a3.
Prophylaxis is all White has left.
19...Rd7; 20. Rd3 Rfd8; 21. Kh2.
To free the f1R from guard duty.
21...Qh6; 22. g3.
Now the Rook can move, but White's K-side pawns will be targets.
22...Nc7; 23. Rfd1 Nd5; 24. Kg2.
Would you like a draw?
24...Qg6; 25. Kh2 h5.
I'd rather play it out.
26. R1d2 Qh6; 27. Rf2 Nc7; 28. Rfd2 Ne6.
With this move Black declines the draw for good!
29. d5 Nc5; 30. Rd4 h4; 31. dc!!
A surprising offer of a Rook. But on 31...R:d4; 32. R:d4 R:d4, White plays 33. c7 and the pawn cannot be stopped from queening!
31...R:d4; 32. R:d4 hg+.
Apparently hoping for 33. Q:g3? R:d4; 34. c7 Qc6.
33. Kg2?
White's enthusiasm betrays him. After 33. Kg1 his Rook would have been immune. Now Black wins by a tempo!
33...R:d4!! 34. c7 Rd2+; 35. Kg1 Q:h3; 36. c8=Q+ Kh7.
White's two Queens are not enough.
37. Q:c5.
The only answer to the threat of 37...Qh2+ and 38...Rf2+.
37...Qh2+; 38. Kf1 g2+; 39. Ke1.
Now 39... g1=Q+ is answered by 40. Q:g1 Q:g1+; 41. K:d2 when White remains a piece ahead.
39...R:b2!
After this there is no defense. It would have been the same after 37. Qh1 Rh2; 38. Qf3 R:b2.
40. Qe3 g1=Q+; 0:1.