Pk Pqb Nkb Nqb Pq Pxp Nxp Pkn Bk Bn Pqb Nb Nqb Nkn Qxn Nxn Qql Nk Qq Pq Bk Bq Qrqbqb Nq Rkl

Petrosian starts a series of aimless meanderings which cost four tempi (... R-K1-B1/... N-B2 R3-B4). Best, of course, is 14... N-B4! as in Porath-Larsen( !), Amsterdam, 1964. 15 P-B4 N-B2 16 P-B5 N-R3 17 B-N4 N-B4 18 PXP RPXP 19 Q-B2 R-KB1. Allowing for 20 BXN? PXB 21 N-B6+ BXN 22 RXQ QRXR with good compensation for the Q. Black's position is very solid and he would never lose. However,... 20 P-K5!! An excellent move which forces Black's minor pieces onto awkward squares. 20 ... BXP 21 Q-R4 BXN 22 RXB N-K3 Black had much better chances with 22 ... P-K3! 23 QXQ KRXQ 24 RXB PXR 25 BXN and its not absolutely clear that White wins. 23 R-B3 B-B3 24 Q-R6 B-N2 25 QXP!! _

60 The Chess Combination from Philidor to Karpov 25... N-B5. The immediate 25 ... PXQ 26 BXN+ is about the same as this. 26 RXN PXQ 27 B-K6+ R-B2. Or 27 ... K-R2 28 R-R4+ B-R3 29 BXB+- 28 RXR K-R1.29 R-KN5 P-N4 30 R-KN3 Black Resigns. A rare fate for a World Champion.

(b) B. Jacobsen-Ljubojevic, Groningen, 1970. Irregular opening.

A second game with Paulsen-Morphy reverberations. Ljubojevic adds some brilliant twists of his own, but the basic pattern, with the cramping Black Q on d3, is the same.

1 P-KN3 P-K4 2 B-N2 N-QB3 3 P-K4?! B-B4 4 N-K2 N-B3 5 P-QB3 P-Q4 6 P-QN4? White's handling of the opening is absurdly eccentric. 6...B-N3 7 PXP NXQP 8 B-QR3 B-N5 0-0 N-B5!! A splendid introduction to the following blockade. 10 PXN Q-Q611 R-Kl. In order to defend the KN White must—ominously—weaken his KB2. 11... 0-0-0 12 P-N5 N-R4 13 B-N4 N-B5 14 P-QR4PXP 15 P-R5 BXP+!

16 KXB N- K 6. The final link in the dramatic convergence of Black's pieces. If 17 Q-N3 NXB 18 KXN KR-K1—h White's choice is also hopeless. 17 N-R3 NXQ+ 18 QRXN P-B6 19 N-Bl Q-B4 20 B-Rl Q-B5 White Resigns.

There can be few lovers of chess unfamiliar with Anderssen's "Evergreen" game (and the number should diminish further as a result of this book) but I wonder how many readers are aware of the other side of the coin—that the dashing, aggressive imagination which conceived the "Evergreen" and the "Immortal" could prove, on occasion, to be quite inadequate when faced with the self-same defensive problems with which Anderssen baffled his opponents. Dr. Euwe's remarks quoted earlier concerning play in the first half of the nineteenth century certainly do apply to Anderssen, whose constant quest for the initiative sometimes blinded him to the benefits of consolidation.

Baron Kolisch-Anderssen, Paris, 1860. Evans Gambit.

The so-called "compromised defence". To my mind the Evans Gambit forms a sort of nineteenth-century parallel with the modern Najdorf variation of the Sicilian: both (in their time) heavily analysed and extremely popular; both leading to ultra-sharp clashes in which the antagonists seek to emphasize the strengths of their own positions (e.g. material vs. development or flexibility plus Q-side expansion vs. development.) And in both cases Black often risks a prolonged sojourn of his K in the centre, while he concentrates on the exploitation of his own particular advantages.

1P-K4

2N-KB3

3B-B4

4P-QN4

5P-B3

6P-Q4

P-K4

N-QB3

B-B4

BXNP

B-R4

8Q-N3 9P-K5 10NXP

Quite in Anderssen's counter-attacking style, but 10. trustworthy.

KN-K2 is more

62 The Chess Combination from Philidor to Karpov

11NXP R-Nl

12Q-K3 KN-K2

13 Q-K2

Threatening 14 N-R4.

14B-R3 B-N2

15QR-Q1 N-B4

Overlooking the combination which promptly ensues.

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