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🏆 Amsterdam IBM-B (1980)

PARTICIPANTS (sorted by highest achieved rating; click on name to see player's games) Jan Smejkal, Oscar Panno, Wolfgang Unzicker, Hans Ree, Kenneth Rogoff, Aleksander Sznapik, Gert Ligterink, Kick Langeweg, Hans Bohm, Cor van Wijgerden, Frans Borm, Leonard Hofland

Amsterdam IBM-B (1980) Amsterdam, the Netherlands, 27 June - 10 July 1980 Age Elo* 1 2 3 4 5 6 7 8 9 0 1 2 —————————————————————————————————————————————————————— 1 Ree 35 2520 • ½ ½ ½ ½ 1 1 1 ½ ½ ½ 1 7½ 2 Unzicker 55 2510 ½ • 0 ½ 1 1 1 ½ 1 ½ 1 ½ 7½ 3 Panno 45 2540 ½ 1 • ½ ½ ½ 0 ½ ½ 1 1 1 7 4 Langeweg 43 2425 ½ ½ ½ • 1 ½ ½ ½ ½ 1 ½ ½ 6½ =5 Ligterink 30 2455 ½ 0 ½ 0 • 1 ½ ½ 1 ½ 0 1 5½ =5 Böhm 30 2430 0 0 ½ ½ 0 • 0 1 ½ 1 1 1 5½ =7 Borm 30 2355 0 0 1 ½ ½ 1 • ½ 1 0 0 ½ 5 =7 Rogoff 27 2520 0 ½ ½ ½ ½ 0 ½ • ½ ½ 1 ½ 5 =7 Van Wijgerden 30 2435 ½ 0 ½ ½ 0 ½ 0 ½ • 1 1 ½ 5 =10 Sznapik 29 2460 ½ ½ 0 0 ½ 0 1 ½ 0 • ½ ½ 4 =10 Smejkal 34 2555 ½ 0 0 ½ 1 0 1 0 0 ½ • ½ 4 12 Hofland 26 2300 0 ½ 0 ½ 0 0 ½ ½ ½ ½ ½ • 3½ —————————————————————————————————————————————————————— Eleven rounds in 14 days, starting on Friday 27 June. Rest days 1, 6 & 9 July. Ree won on tiebreak ahead of Unzicker, both with 7.5/11. Sources Dutchbase I (https://maxeuwe.nl/files-dutchbase/...) Dutchbase II (https://maxeuwe.nl/files-dutchbase/...) *FIDE rating list January 1980 (https://web.archive.org/web/2023041...) El Ajedrez, September 1980, pp. 404-407 (http://www.historiadelajedrezespano...) Jaque 105, September 1980, pp. 9-16 (https://www.olimpbase.org/leagueES/...) Dutch newspapers (available at https://www.delpher.nl/nl/kranten) Previous: Amsterdam IBM-B (1979). See also Amsterdam IBM (1980) and Amsterdam IBM-C (1980)  page 1 of 3; games 1-25 of 66  Game   Result Moves Year Event/Locale Opening 1. L Hofland vs Unzicker   ½-½ 18 1980 Amsterdam IBM-B A13 English 2. A Sznapik vs C van Wijgerden   0-1 42 1980 Amsterdam IBM-B B09 Pirc, Austrian Attack 3. Smejkal vs H Bohm 0-1 39 1980 Amsterdam IBM-B A04 Reti Opening 4. F Borm vs H Ree   0-1 60 1980 Amsterdam IBM-B B83 Sicilian 5. Panno vs K Langeweg   ½-½ 40 1980 Amsterdam IBM-B A33 English, Symmetrical 6. K Rogoff vs G Ligterink   ½-½ 33 1980 Amsterdam IBM-B D32 Queen's Gambit Declined, Tarrasch 7. F Borm vs Smejkal   0-1 55 1980 Amsterdam IBM-B C55 Two Knights Defense 8. H Ree vs Unzicker   ½-½ 32 1980 Amsterdam IBM-B E12 Queen's Indian 9. G Ligterink vs Panno   ½-½ 25 1980 Amsterdam IBM-B B82 Sicilian, Scheveningen 10. H Bohm vs K Rogoff 1-0 40 1980 Amsterdam IBM-B A33 English, Symmetrical 11. C van Wijgerden vs L Hofland   ½-½ 12 1980 Amsterdam IBM-B B13 Caro-Kann, Exchange 12. K Langeweg vs A Sznapik   1-0 38 1980 Amsterdam IBM-B E90 King's Indian 13. L Hofland vs K Langeweg   ½-½ 22 1980 Amsterdam IBM-B A04 Reti Opening 14. K Rogoff vs F Borm   ½-½ 34 1980 Amsterdam IBM-B A30 English, Symmetrical 15. Unzicker vs C van Wijgerden   1-0 38 1980 Amsterdam IBM-B B09 Pirc, Austrian Attack 16. A Sznapik vs G Ligterink   ½-½ 24 1980 Amsterdam IBM-B B33 Sicilian 17. Panno vs H Bohm   ½-½ 17 1980 Amsterdam IBM-B A34 English, Symmetrical 18. Smejkal vs H Ree   ½-½ 20 1980 Amsterdam IBM-B D61 Queen's Gambit Declined, Orthodox, Rubinstein Attack 19. H Ree vs C van Wijgerden   ½-½ 16 1980 Amsterdam IBM-B E06 Catalan, Closed, 5.Nf3 20. F Borm vs Panno   1-0 32 1980 Amsterdam IBM-B B84 Sicilian, Scheveningen 21. Smejkal vs K Rogoff 0-1 39 1980 Amsterdam IBM-B A21 English 22. H Bohm vs A Sznapik   1-0 34 1980 Amsterdam IBM-B A10 English 23. G Ligterink vs L Hofland   1-0 40 1980 Amsterdam IBM-B E73 King's Indian 24. K Langeweg vs Unzicker   ½-½ 17 1980 Amsterdam IBM-B E18 Queen's Indian, Old Main line, 7.Nc3 25. A Sznapik vs F Borm   1-0 43 1980 Amsterdam IBM-B C95 Ruy Lopez, Closed, Breyer  page 1 of 3; games 1-25 of 66    REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2)   Nov-22-22    Ninas Husband: Ken Rogoff's last tournament. 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