Former world champion Anatoly Karpov continued without a win in the international tournament in Linares, Spain, according to the latest wire story from Reuters.
In the second round he secured a draw against Boris Gulkov of the Soviet Union.British grandmaster Nigel Short, who defeated Karpov in the first round, had adjourned his game with Lajos Portisch, of Hungary, mounting a Dutch Defense after losing the attack in the middle game.
Iceland's Johan Hjartarson defeated Alexander Beliavsky of the Soviet Union after 40 moves using a Ruy Lopez opening.
Artur Yusupov of the Soviet Union led the competition after the second day with a win and a draw.
Second-round results: Ljubomir Ljubolevic, Yugoslavia, drew with Artur Yusupov, Soviet Union.
Johan Hjartarson, Iceland, def. Alexander Beliavsky, Soviet Union.
Anatoly Karpov, Soviet Union, drew with Boris Gulkov, Soviet Union.
Lajos Portisch, Hungary, vs. Nigel Short, Britain, match adjourned.
Vasily Ivanchuk, Soviet Union, vs. Jan Timman, Netherlands, match adjourned with Ivanchuk in advantage.
*THE WINNAH! - Timman defeated Portisch of Hungary in the final game of their World Championship Candidates quarterfinal to win the six-game match 3 1/2 - 2 1/2.
It was the second consecutive victory in the hard-fought contest for the 37-year-old Dutchman, who had luck on his side, just as in the previous game, when he tied the match.
In the final encounter he was never in danger of defeat, but chess experts said a draw was the most he should have gained, the AP correspondent reported.
Portisch played black in the Taimanov variation of the Sicilian defense and was clearly aiming for a peaceful outcome, which would have caused the match to go into overtime.
He sacrificed a pawn and exchanged queens early on, simplifying the position until the two sides were almost completely evened out.
Timman had only a virtually worthless extra pawn and a slight spatial advantage to fight on with.
But fight he did, taking risks that made the Dutch grandmaster Genna Sosonko say, "He might lose the game, and with it the match, if he goes on like this."
It turned out to be part of Timman's strategy.
"Just as in the previous game, it was my aim to terrorize my opponent by doing the unexpected," Holland's strongest player said afterward.
Unable to stand the strain, Portisch nervously sought to create counter chances. Experts said he should have resigned himself to a passive defeat.
About 50 moves into the rooks and bishops endgame, the Hungarian made the decisive mistake, allowing a white pawn advance on the queen side.
Timman quickly concentrated his forces to support the lonely pawn and coasted to final victory on his 64th, when Portisch resigned under the thunderous applause of the 200 spectators packing the tournament hall.
The victory earned Timman a berth in the semifinals, to be played in October in London.
He will play Britain's Jonathan Speelman, while the former world champion Anatoly Karpov takes on fellow Soviet grandmaster Arthur Yusupov in the other semifinal match.
The winner of the final, whose date and venue remain to be chosen, gains the right to challenge the world champion, Gary Kasparov of the Soviet Union.
Portisch meanwhile announced his withdrawal from the world championship race. He said he would continue to play tournament chess, but said, "At 51 and having competed in the Candidates series eight times since 1964, enough is enough."
The Hungarian grandmaster had plenty to be irritated about because he practically gave the match away. He was the first one to score, and he carried his one point edge into the fifth game.