David Bronstein (1924-2006) was not only a great player, but a great author. In 1951 he drew a world title match against Botviinik; he was probably warned by Soviet authorities that he had better not win.
In the following rather well known game Bronstein intuitively sacrificed a piece for two Pawns with the idea that his Pawn center would restrict his opponent’s pieces and that would compensate for his opponent's small material advantage.
His opponent, Ernst Rojahn (1909-1977), was born in Tonsberg, Norway and was Norwegian Champion in 1945 and 1958. He played in the Olympiads in 1939, 1952, 1966 and 1958. The game was played in the qualifying round of the 1956 Olympiad held in Moscow.
David Bronstein–Ernst Rojahn1–0C58Moscow ol (Men) qual-A5Moscow URS05.09.1956Stockfish 17
C58: Two Knights Defense 1.e4 e5 2.f3 c6 3.c4 f6 4.g5 d5 5.exd5 a5 6.d3 Far more popular than this questionable move is 6.Bb5+, but
Bronstein has a spectacular dea up his sleeve; h6 7.f3 e4 8.dxe4 The book
line is 6.Qe2, but Bronstein has an fantastic idea; he sacrifices the B to
gain a preponderance in the center, Engines give black a Pawn and a half
advantage 8.d4 is an interesting idea that doesn't quite work to white's
advantahe. c5 9.e3 exd3 10.b5+ c6 11.dxc6 0-0 12.xd3 with
complications that worled out in black's favor in Trapl,J (2400)-Mikhalchishin,
A (2520) Karvina 1987 8...xc4 Black has to accept the sacrifice otherwise
white gets the upper hand. 8...b4+ 9.d2 xd2+ 10.bxd2 xc4 11.xc4
with both a solid material and positional afvantage. 9.d4 b6 9...d6
is also playable. 10.bd2 g4 11.e5 h5 12.0-0 g6 13.d3 g7 14.c4 0-0 15.e3 e8 16.f3 f5 17.e1 d4 18.d1 xe4 19.xe4 xe4 20.g4 xf3+ 21.xf3 xg4+ 22.h1 g1+ 23.xg1 xf3 24.xf3 e7 0-1 Triana,J (2330)-Castro
Rojas,O (2380) Cienfuegos 1976 10.c4 Bronstein has sacrificed a piece for
two Ps and a dominating center. 10.0-0 favors black. e7 Too slow.
Either 10. ..g5 or 10...c5 are better. 11.c4 0-0 12.c3 c6 13.e5 cxd5 14.c5 with huge complications. Serikbayev,Y (2325)-Filippov,A (2558) Karaganda
2009 10...c5 The engines prefer 10...Nbd7 and 11...Bf5 10...b4+ 11.bd2 e7 12.0-0 c5 13.d3 bd7 14.h3 0-0 Black is better. Manea,A (2301)
-Sofronie, I (2399) Baile Tusnad 2001 10...c6 has been recommended with
the ideas of returning the piece and gaining the two Bs. 11.0-0 11.c5
this was the suggested move, bot is is completely wrong. bd7 12.d6 b6 13.b4 bxc5 14.bxc5 a5+ 15.c3 xc5 with a huge advantage. 11...cxd5 12.cxd5 g5 13.e3 g7 14.b4 fd7 Black is slightly better. 11.d3 g4 12.bd2 e7 At this point black's advantage has disappeared and white can claim
sufficient compensation for his sacrifice. 13.0-0 0-0 14.e5 h5 15.b3 15.f4 liks aggressive, but with careful play black shoulf emerge with the
advantage. fd7 16.ef3 g6 17.e3 e8 18.e5 but here, too, black should
be OK if he is careful. 15...bd7 16.b2 xe5 17.xe5 d7! 18.c3 f6
Eliminating a potentially threatening piece. 19.ae1 xc3 20.xc3 Black
now needs to prevent further advance in the center and so needs to play 20...
f3. Instead he allows Bronstein to advance his P with a gain of time. f6
After tjis Bronstein's play has been completely justified as he now has the
advantage. 20...f6 21.f4 b5 Counterattack! 22.e5 22.cxb5 a6
Continuing the counterattaxk. 23.a4 axb5 24.axb5 f7 Stopping e5. His next
move will be .. .Nc5 with plenty of play. 22...fxe5 23.fxe5 xf1+ 24.xf1 bxc4 25.bxc4 g5 26.e6 f6 with enormous complications! In Shootouts white
scored +1 -1 =3 21.e5 f5 22.f4 g6 23.e4 His last piece
is brought in to action. ab8 24.f3 h7 Black is pretty much reduced to
just shifting piece. 25.g4 Watch white's Ps roll! g6 26.f5 b6 27.g3 f6 28.e6 e5 29.h4 h8 30.g5 bc8 31.h1 d8 32.g6 xg6 32...g8 is no
better. 33.d6 b5 34.e7 33.fxg6 All hope of saving the game for black is
gone. b5 34.d6 b6 35.d7 xd7 36.exd7 cd8 37.xf6 The finishing touch. c6+ 37...xf6 38.e8+ xe8 39.dxe8+ f8 40.xf8# 38.g2 Black
resigned, A spectacular game by Bronstein. 1–0
No comments:
Post a Comment