|
|
3
exd5..................................................................................................................................................Nf3
e4........................................................................................c6
dxe4
4
d3
Nc3(l)
Nxe5
Nf 6
exf4
Nd7(p)
5
Nd2(a) .....................dxe4....................
Nc3
Nf3
d4
exd3
Nxe4
Bb4
Nf6
Bd6
exd3
6
Bxd3
Nf3(d)
Bd2
d4
Bc4(o)
Nxd3
Nxd5(b)
Bc5
e3(i)
Bd6(m)
Ne7
Ngf6
7
Qf3(c)
Qe2
Bxe3
Qe2+
dxc6
Nc3
Nc6
Bf5(e)
0—0
Qe7(n)
Nbxc6
Nh6
8
a3
Nc3(f)
Bd2(j)
Qxe7+
d4
Be2
Bc5
Qe7
Bxc3
Kxe7
0—0
Bd6
9
Ne2
Be3
bxc3
Ne5
0—0
0—0
0—0
Bxe3(g)
Re8+
Nxd5
Bg4
0—0
10
Nb3
Qxe3
Be2
Nxd5+
Ne4
Bf3
Be7 =
Nxc3(h)
Bg4(k)
cxd5 ±
Bc7
c6
(b] Also reasonable is 6 ... QxdS 7 Ngf3 Ncfi 8 Qe2± Be7
(c) 7 Ne4 Nb4 8 Bb5± c6 also produces an equal game.
(d)
(A) 6 Be3 Qh41- 7 g3 Nxg3 8 Nf3 (8 hxg3 was played by Tal, but it is not
a sound sacrifice)
8 ... Qe7 9 hxg3
Qxe3t 10 Qe2 gives White a minute endgame edge, Spassky— Matanovi~, Belgrade
1964. (B) Charouseks 6 Qe2 fails to 6 . . . Qxd5 7 Nd2 f5 8 g4 Nc6
9 c3 Be7 10 Bg2
Qf 7 ~, Bardeleben—Pillsbury, Hanover 1902.
(e) 7 ... 13f2f 8 Kdi QxdS± 9 Nfd2! wins.
(f) 8 g4 0—O 9 gxf 5 Re8 is too dangerous for White, Spielmann—Tarrasch, Mor. Ostrava 1923.
(g) 9 ... Nxc3? 10 BxcS Nxe2 11 Bxe7 Nxf4 12 Ba3 +, Bronstein—Tal, USSR 1968.
(h) 11 Qxe7t Kxe7 12 bxc3 makes it difficult for Black to equalize. Foune—Mathieu, corr. 1985, continued 12 ... Be4 13 Ng5 HxdS 14 0-.0—0 Bxa2 15 c4 b5 16 cxb5 a6? (Estrin suggested 16 ... h6 as a better try. Black has an uphill struggle in any case, but now he faces a strong attack.) 17 Bd3 axb5 18 Rhel± Be6 19 f5 Kf6 20 fxe6 KxgS 21 exf7 Rf8 22 Re8 Rxf7 23 Kb2 c6 24 Hxh7 Rfa7 25 Rdd8 g6 26 Bg8 Rb7 27 g3 Kf6 28 h4 c5 29 Bd5 Resigns.
(i) 6 ... 0-0 7 Nxe4 Re8 8 B~cb4 Nxe4 9 dxe4 Rxe4± 10 Be2 Rxb4 11 Nf3 ±, Spassky— Bronstein, Moscow 1971.
(j) 8 Be2?! Bxc3-t 9 bxc3 Nxd5 10 Bd2 Qf6 gives Black too much play, Gruzman—Kimelfeld, Moscow 1966.
(k) 11 Kf2 (better than 11 c4?! of Schulten—Morphy, New York 1857) 11 . . . Bxe2 12 Nxe2 Qxd5 gives Black chances for his pawn.
(l) The text move is considered best. Both (A) 4 Qe2 cxds 5 fxe5 Nc6 6 c3 d4 Alekhine— Johner, Carlsbad 1908, and (B) 4 dxc6 Nxc6 5 Bb5 exf4 6 Nf3 Bd6 Ree—Short, Wijk aan Zee 1986, are risky for White.
(m) 6. . . NxdS 7 Nxd5 QxdS 8 Bxf4 Qe4± 9 Qe2 + Stoltz—Brinckmann, Swinemunde 1932.
(n) The alternative is worse: 7 . . . Kf8 8 Ne5 cxds 9 Bf4 ±.
(o) This is an improvement over 6 d4 Ne7 7 dxc6 Nbxc6 8 d5 Nb4 9 Bc4 (Hebden—Henley, New York 1983) when 9. . . Bf5 would be good for Black. The column is Illescas—Nunn, Dubai 1986.
(p)
4 . . . Bd6 is well playable. If then the sharp S Bc4, Black obtains the
better game with 5 . .. Bxe5 6 fxe5 Nc6 7 e6 Bxe6 8 Bxe6 fxe6 9 QhSt g6
10 Qg4 Nd4 11 Qxe4 Nf6,
Delaney—Mortensen,
Thessaloniki 1984. The column is Lutikov—Nikitin, Tbilisi 1959.