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Ulf Andersson
UlfAndersson.jpg
Andersson in 2008
Country Sweden
Born (1951-06-27) 27 June 1951 (age 73)
Västerås, Sweden
Title
FIDE rating 2516 (June 2025)
Peak rating 2655 (January 1997)
Peak ranking No. 4 (January 1983)

Ulf Andersson (born 27 June 1951) is a top Swedish chess player. He became an International Master in 1970 and a Grandmaster in 1972. These are very high titles in the world of chess.

Ulf Andersson's Chess Career

At his best, Ulf Andersson was ranked number four in the world by FIDE, the international chess organization. He won or shared first place in many important tournaments. Some of these include the Swedish Chess Championship in 1969, Dortmund in 1973, and Wijk aan Zee in 1983.

Playing Against World Champions

In 1983, Andersson played a six-game match against Mikhail Tal, a former world champion, and the match ended in a draw. He also played on the top board for the "Rest of the World" team in a big match against the Soviet Union in 1984.

Leading the Swedish Team

Andersson was the leader of the Swedish team at the Chess Olympiads throughout the 1970s and 1980s. His best result at an Olympiad was in Buenos Aires in 1978. He finished third on the first board, which is a great achievement. Even now, in his seventies, Andersson still plays in chess tournaments sometimes.

Ulf Andersson's Playing Style

Andersson is known as a very strong positional player. This means he focuses on placing his pieces in good spots and building a strong position, rather than looking for quick attacks. He often plays very carefully and tries to avoid risks.

Master of Endgames

He is especially famous for his skill in endgames, which are the final parts of a chess game when there are only a few pieces left. He is known for winning games that seem impossible to win, especially in rook endgames. These games can often be very long!

Thinking Ahead in Chess

Chess expert Jacob Aagaard said that Andersson is a "prophylactic player." This means he is very good at seeing what his opponent might do in the future and stopping their plans before they even start. He avoids traps with great skill. Another chess writer, Dennis Monokroussos, noted that for most players, trading many pieces often leads to a quick draw. But for Andersson, it was often a sign that his opponent was about to face a tough challenge.

Ulf Andersson's Correspondence Chess

In 1995, Andersson started playing correspondence chess. This is chess played by mail or email, where players have a lot of time to think about each move. He became a correspondence chess grandmaster in the same year. It's rare for a player to be so successful in both regular (over-the-board) chess and correspondence chess.

Why Correspondence Chess Suited Him

Ulf found correspondence chess helpful because he had more time to think. In regular chess, he sometimes felt nervous. With more time, he could carefully consider every small detail of each move. His correspondence games were often very tactical, which was different from his careful style in over-the-board games.

Highest Rating in Correspondence Chess

While playing in a special tournament, he reached the highest provisional rating ever in the ICCF, with a score of 2821 in 1998. He later reached the top of the official rating list in 2002.

Ending His Correspondence Career

In the early 2000s, many correspondence players started using computers to help them. Ulf was one of the few who still played without computer help. As games became faster (email instead of postal mail), he felt he had to send moves before he was fully ready. He decided to stop playing correspondence chess in 2003, finding it too demanding. Even so, he lost only one official game in his entire correspondence career. As of 2024, he is still the highest-rated inactive player on the ICCF rating list.

Notable Chess Games

Ulf Andersson is famous for helping to create a chess setup called the "Hedgehog" formation. In the game below, using this setup, he defeated Anatoly Karpov. This was Karpov's first loss as world champion!

h g f e d c b a
1
Chessboard480.svg
h1 white king
d1 white rook
c1 white rook
h2 white pawn
g2 white pawn
f2 white queen
e2 white bishop
d2 white knight
b2 white pawn
f3 white pawn
e3 white bishop
c3 white knight
a3 white pawn
e4 white pawn
c4 white pawn
h6 black pawn
f6 black knight
e6 black pawn
d6 black pawn
b6 black pawn
a6 black pawn
g7 black pawn
f7 black pawn
d7 black knight
g8 black king
f8 black bishop
e8 black rook
d8 black rook
b8 black queen
a8 black bishop
1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
h g f e d c b a
Position after 24.a3
Karpov vs. Andersson, Milan 1975
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 Be7 9.Be2 0-0 10.0-0 b6 11.Be3 Bb7 12.Rc1 Re8 13.Qb3 Nd7 14.Rfd1 Rc8 15.Rd2 Qc7 16.Qd1 Qb8 17.f3 Ba8 18.Qf1 Nce5 19.Nab1 Nf6 20.Kh1 h6 21.Rdd1 Bf8 22.Nd2 Rcd8 23.Qf2 Ned7 24.a3 (diagram) d5 25.cxd5 exd5 26.exd5 Bd6 27.Nf1 Rxe3 (an exchange sacrifice) 28.Nxe3 Bxh2 29.Nf1 Bf4 30.Rc2 b5 31.Bd3 Nb6 32.Be4 Nc4 33.a4 Re8 34.axb5 axb5 35.Re2 Be5 36.Qc5 Nd6 37.Na2 Ndxe4 38.fxe4 Bd6 39.Qc2 Re5 40.g3 Qe8 41.Rde1 Bb7 42.Kg1 Nh7 43.Nc1 Ng5 44.Nd2 Bb4 45.Kf2 Bxd2 46.Rxd2 Nxe4+ 47.Rxe4 Rxe4 48.Ne2 Bc8 49.Nc3 Re1 50.Ne2 Ra1 51.Rd4 Qd8 52.Qc6 Bd7 53.Qd6 Qe8 54.Qf4 Qc8 55.b4 Bh3 56.Qe4 Bf5 57.Qe3 Qc2 58.g4 Bd7 59.Qe4 Qb3 60.Qd3 Qb2 61.Qe4 Ra8 62.Qe3 Ra2 63.d6 Ra8 64.Re4 Bc6 65.Qd4 Qb1 66.Re7 Qh1 67.Qf4 Qg2+ 68.Ke1 Ra1+ 69.Kd2 Qd5+ 70.Qd4 Ra2+ 71.Kc3 Qf3+ 72.Re3 Ra3+ 73.Kd2 Ra2+ 74.Ke1 Qh1+ 75.Kf2 Qg2+ 76.Ke1 Qh1+ 77.Kf2 Ra1 78.Rc3 Qg2+ 79.Ke3 Qf3+ 0–1

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Kids robot.svg In Spanish: Ulf Andersson para niños

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