1987 Interzonal Tournaments
Three Interzonals were held in the summer of 1987, with 16 to 18 players playing in each and the top three scorers from each qualifying.
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June–July 1987 Interzonal, Subotica Rating 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Total Tie break 1 Gyula Sax (Hungary) 2570 - 1 ½ ½ ½ 1 1 ½ ½ 0 1 ½ 1 ½ 1 1 10½ 74.25 2 Nigel Short (England) 2615 0 - ½ ½ 1 1 ½ 1 ½ 1 ½ 1 ½ 1 ½ 1 10½ 73.00 3 Jon Speelman (England) 2550 ½ ½ - 0 1 ½ ½ ½ 1 ½ 1 1 ½ 1 1 1 10½ 70.75 4 Mikhail Tal (Soviet Union) 2605 ½ ½ 1 - ½ ½ 1 ½ ½ ½ 1 1 ½ 1 0 1 10 72.50 5 Zoltán Ribli (Hungary) 2580 ½ 0 0 ½ - ½ ½ ½ 1 ½ 1 1 1 1 1 1 10 63.25 6 Amador Rodríguez Cespedes (Cuba) 2495 0 0 ½ ½ ½ - ½ ½ ½ 1 0 1 ½ 1 1 1 8½ 7 Slavoljub Marjanović (Yugoslavia) 2505 0 ½ ½ 0 ½ ½ - ½ 0 ½ 1 1 ½ ½ 1 1 8 8 Vasily Smyslov (Soviet Union) 2550 ½ 0 ½ ½ ½ ½ ½ - ½ 0 0 1 1 ½ 1 ½ 7½ 52.00 9 Alexander Chernin (Soviet Union) 2570 ½ ½ 0 ½ 0 ½ 1 ½ - 1 0 0 1 0 1 1 7½ 51.00 10 Petar Popović (Yugoslavia) 2540 1 0 ½ ½ ½ 0 ½ 1 0 - 1 0 0 ½ ½ 1 7 11 Alonso Zapata (Colombia) 2505 0 ½ 0 0 0 1 0 1 1 0 - ½ 0 1 ½ 1 6½ 12 Thomas Ernst (Sweden) 2465 ½ 0 0 0 0 0 0 0 1 1 ½ - 1 1 1 0 6 13 Lev Alburt (United States) 2575 0 ½ ½ ½ 0 ½ ½ 0 0 1 1 0 - ½ 0 ½ 5½ 14 Xu Jun (China) 2495 ½ 0 0 0 0 0 ½ ½ 1 ½ 0 0 ½ - 1 ½ 5 15 Devaki Prasad (India) 2425 0 ½ 0 1 0 0 0 0 0 ½ ½ 0 1 0 - ½ 4 16 Ahmed Ibrahim Hamed (Egypt) 2310 0 0 0 0 0 0 0 ½ 0 0 0 1 ½ ½ ½ - 3
In the first tournament in Subotica, Sax, Short, and Speelman qualified. Lubomir Kavalek withdrew after six rounds; his results are not included in the totals for the other players. Robert Hübner was invited, but declined to participate. As a result, Ribli had a free day during the last round. To show his displeasure, he refused to take part in a playoff against Tal, which could have been important, if a reserve spot had opened up in the Candidates Tournament.
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July–August 1987 Interzonal, Szirak Rating 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Total Tie break 1 Valery Salov (Soviet Union) 2575 - ½ ½ ½ 1 1 ½ 1 ½ 0 ½ 1 1 ½ 1 1 1 1 12½ 97.25 2 Jóhann Hjartarson (Iceland) 2550 ½ - ½ ½ ½ ½ 1 1 ½ 1 1 ½ 0 1 1 1 1 1 12½ 96.50 3 Lajos Portisch (Hungary) 2615 ½ ½ - ½ 1 ½ 0 1 1 1 1 1 1 1 ½ ½ ½ ½ 12 98.50 4 John Nunn (England) 2585 ½ ½ ½ - ½ 0 1 ½ 1 1 1 1 ½ 1 0 1 1 1 12 92.50 5 Alexander Beliavsky (Soviet Union) 2630 0 ½ 0 ½ - ½ ½ ½ ½ 1 ½ 1 ½ 1 1 1 1 1 11 6 Ulf Andersson (Sweden) 2600 0 ½ ½ 1 ½ - ½ 1 ½ ½ ½ ½ 1 1 ½ ½ ½ 1 10½ 7 Ljubomir Ljubojević (Yugoslavia) 2625 ½ 0 1 0 ½ ½ - ½ ½ ½ 1 ½ ½ 1 1 ½ ½ 1 10 8 Larry Christiansen (United States) 2575 0 0 0 ½ ½ 0 ½ - ½ 1 ½ 1 1 0 1 ½ 1 1 9 9 Joel Benjamin (United States) 2575 ½ ½ 0 0 ½ ½ ½ ½ - 0 ½ ½ 1 0 ½ 1 1 1 8½ 61.75 10 Miodrag Todorcevic (Yugoslavia) 2475 1 0 0 0 0 ½ ½ 0 1 - 1 0 ½ 0 1 1 1 1 8½ 59.75 11 Mihail Marin (Romania) 2475 ½ 0 0 0 ½ ½ 0 ½ ½ 0 - 1 ½ ½ 1 ½ ½ 1 7½ 52.75 12 Dragoljub Velimirović (Yugoslavia) 2520 0 ½ 0 0 0 ½ ½ 0 ½ 1 0 - 1 ½ 1 0 1 1 7½ 51.75 13 András Adorján (Hungary) 2540 0 1 0 ½ ½ 0 ½ 0 0 ½ ½ 0 - 1 ½ ½ 1 ½ 7 55.00 14 Gilberto Milos (Brazil) 2495 ½ 0 0 0 0 0 0 1 1 1 ½ ½ 0 - ½ 1 0 1 7 49.75 15 Glenn Flear (England) 2480 0 0 ½ 1 0 ½ 0 0 ½ 0 0 0 ½ ½ - ½ 1 1 6 16 Jesús de la Villa (Spain) 2485 0 0 ½ 0 0 ½ ½ ½ 0 0 ½ 1 ½ 0 ½ - 0 1 5½ 17 Slim Bouaziz (Tunisia) 2370 0 0 ½ 0 0 ½ ½ 0 0 0 ½ 0 0 1 0 1 - ½ 4½ 18 Denis Allan (Canada) 2310 0 0 ½ 0 0 0 0 0 0 0 0 0 ½ 0 0 0 ½ - 1½
In the Szirák tournament, Valery Salov and Jóhann Hjartarson finished at the top of the table, while Lajos Portisch and John Nunn tied for third. The last place in the Candidates Tournament was decided in a separate playoff in Budapest, with Portisch defeating Nunn 4–2.
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August 1987 Interzonal, Zagreb Rating 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Total Tie break 1 Viktor Korchnoi (Switzerland) 2630 - ½ 1 0 ½ ½ 0 1 1 1 1 1 ½ ½ 1 ½ 1 11 2 Jaan Ehlvest (Soviet Union) 2540 ½ - ½ ½ 1 1 0 ½ 1 0 ½ 1 1 1 1 ½ 0 10 80.75 3 Yasser Seirawan (United States) 2600 0 ½ - 1 ½ ½ 1 0 0 1 1 1 ½ 0 1 1 1 10 73.50 4 Jesus Nogueiras (Cuba) 2555 1 ½ 0 - 1 ½ ½ ½ ½ ½ ½ 0 ½ ½ 1 1 1 9½ 71.00 5 Predrag Nikolić (Yugoslavia) 2620 ½ 0 ½ 0 - ½ 0 ½ 1 ½ 1 ½ 1 1 ½ 1 1 9½ 67.50 6 Julio Granda (Peru) 2525 ½ 0 ½ ½ ½ - ½ ½ ½ ½ ½ 1 0 0 0 0 0 9½ 67.50 7 Eugenio Torre (Philippines) 2540 1 1 0 ½ 1 ½ - ½ 0 1 ½ ½ 0 0 1 ½ 1 9 8 Lev Polugaevsky (Soviet Union) 2595 0 ½ 1 ½ ½ ½ ½ - ½ ½ 1 ½ ½ ½ 0 ½ 1 8½ 65.25 9 Vereslav Eingorn (Soviet Union) 2575 0 0 1 ½ 0 ½ 1 ½ - ½ 0 1 1 ½ 0 1 1 8½ 61.25 10 Yehuda Gruenfeld (Israel) 2545 0 1 0 ½ ½ ½ 0 ½ ½ - 0 1 ½ ½ 1 1 1 8½ 59.50 11 József Pintér (Hungary) 2575 0 ½ 0 ½ 0 ½ ½ 0 1 1 - 1 0 ½ 1 1 1 8½ 59.25 12 Krunoslav Hulak (Yugoslavia) 2495 0 0 0 1 ½ 1 ½ ½ 0 0 0 - ½ 1 ½ 1 1 7½ 13 Ventzislav Inkiov (Bulgaria) 2485 ½ 0 ½ ½ 0 0 1 ½ 0 ½ 1 ½ - ½ ½ ½ ½ 7 14 Tony Miles (England) 2585 ½ 0 1 ½ 0 0 1 ½ ½ ½ ½ 0 ½ - 0 0 1 6½ 15 Dragan Barlov (Yugoslavia) 2555 0 0 0 0 ½ 0 0 1 1 0 0 ½ ½ 1 - ½ 1 6 16 Jörg Hickl (West Germany) 2455 ½ ½ 0 0 0 0 ½ ½ 0 0 0 0 ½ 1 ½ - 1 5 17 Fletcher Baragar (Canada) 2320 0 1 0 0 0 0 0 0 0 0 0 0 ½ 0 0 0 - 1½
Viktor Korchnoi emerged as winner of the last tournament in Zagreb, ahead of Jaan Ehlvest and Yasser Seirawan. In an extra playoff in Havana in November, Nikolić took the place as reserve for the Candidates Tournament with 6 points, ahead of Granda (4) and Nogueiras (2). No reserve was needed, however.
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