| Amsterdam IBM (1974) |
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"Three players finished first: Ivkov, Tukmakov and Jansa (in that Berger-Sonneborn order). Of them, Ivkov remained undefeated, while Tukmakov lost his undefeated streak in the last round to his compatriot Geller. Ivkov — in my opinion — with a little luck could have won the sole first place, playing so well and confidently. He stepped in for the ill Olafsson, and left as suddenly as he came: he rushed to Manila to second Marjanovic for the World Youth Championship. Tukmakov proved that his success in Madrid last year was no coincidence. Jansa entered by winning last year's B tournament (it is true that he received the grandmaster title in the process, so he could have been invited directly!), and with the help of Fortuna he achieved the greatest success of his life so far. His games fluctuated, but he usually prevailed. Apart from Ivkov, I was the only one who managed to remain unbeaten. With the exception of my Planinc game, I was usually better or at least equal, and with a little luck I could have achieved a better result. Even so, it was one of my strongest tournaments, if you look at the bottom of the table: Timman, Donner ..." (Ribli in Sakkélet, transl.) Amsterdam, the Netherlands, 16 July - 3 August 1974 Age Elo* 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 Pts
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=1 Ivkov 40 2530 • ½ ½ ½ 1 ½ ½ ½ ½ ½ 1 1 1 ½ 1 ½ 10
=1 Tukmakov 28 2570 ½ • ½ ½ ½ 0 1 ½ 1 1 ½ ½ 1 1 1 ½ 10
=1 Jansa 31 2535 ½ ½ • ½ 0 ½ 1 ½ 1 1 0 ½ 1 1 1 1 10
4 Ribli 22 2525 ½ ½ ½ • ½ ½ 1 ½ 1 ½ 1 ½ ½ ½ ½ ½ 9
5 Ree 29 2425 0 ½ 1 ½ • ½ 0 0 1 0 ½ 1 ½ 1 1 1 8½
=6 Geller 49 2610 ½ 1 ½ ½ ½ • ½ ½ ½ ½ ½ 1 ½ ½ 0 ½ 8
=6 Velimirovic 32 2530 ½ 0 0 0 1 ½ • 1 0 ½ 0 1 1 ½ 1 1 8
=8 Csom 34 2540 ½ ½ ½ ½ 1 ½ 0 • ½ 0 ½ ½ ½ 1 ½ ½ 7½
=8 Langeweg 37 2390 ½ 0 0 0 0 ½ 1 ½ • ½ 1 ½ ½ ½ 1 1 7½
10 Planinc 30 2545 ½ 0 0 ½ 1 ½ ½ 1 ½ • 1 0 ½ ½ 0 ½ 7
=11 Timman 22 2540 0 ½ 1 0 ½ ½ 1 ½ 0 0 • 0 ½ ½ 1 ½ 6½
=11 Lombardy 36 2520 0 ½ ½ ½ 0 0 0 ½ ½ 1 1 • ½ ½ 0 1 6½
=11 Sosonko 31 2450 0 0 0 ½ ½ ½ 0 ½ ½ ½ ½ ½ • 1 1 ½ 6½
14 Donner 47 2495 ½ 0 0 ½ 0 ½ ½ 0 ½ ½ ½ ½ 0 • 1 ½ 5½
15 Knaak 21 2515 0 0 0 ½ 0 1 0 ½ 0 1 0 1 0 0 • 1 5
16 Kaplan 24 2460 ½ ½ 0 ½ 0 ½ 0 ½ 0 ½ ½ 0 ½ ½ 0 • 4½
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This was the 14th tournament sponsored by IBM. Fifteen rounds in 19 days, starting on Tuesday 16 July. Rest days 20, 25, 28 July and 2 August. Rounds started at 1 pm. Chief arbiter: Piet Bakker. Ivkov, Tukmakov & Jansa shared 1st with 10/15.Photo (Geller vs Ivkov): https://upload.wikimedia.org/wikipe...
Photo (Tukmakov vs Csom): https://upload.wikimedia.org/wikipe...
Photo (Jansa vs Ree): https://upload.wikimedia.org/wikipe...
Sources
Dutchbase (https://maxeuwe.nl/files-dutchbase/...)
Eric Delaire website (https://web.archive.org/web/2008042...)
*FIDE rating list May 1974 (https://web.archive.org/web/2023121...)
Jaque 34, October 1974, pp. 7-15 (https://www.olimpbase.org/leagueES/...)
Shakhmatny Bulletin, 12/1974, pp. 380-383 (https://publ.lib.ru/ARCHIVES/SH/''S... )
Magyar Sakkélet, 10/1974, pp. 225-227 (https://adt.arcanum.com/en/view/Sak...)
Dutch newspapers (available at https://www.delpher.nl/nl/kranten)
Previous: Amsterdam IBM (1973). Next: Amsterdam IBM (1975). See also Amsterdam IBM-B (1974)
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| page 1 of 5; games 1-25 of 120 |
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| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. K Langeweg vs Geller |
| ½-½ | 37 | 1974 | Amsterdam IBM | E97 King's Indian |
| 2. Ivkov vs Knaak |
| 1-0 | 41 | 1974 | Amsterdam IBM | B00 Uncommon King's Pawn Opening |
| 3. Jansa vs Csom |
 | ½-½ | 73 | 1974 | Amsterdam IBM | B31 Sicilian, Rossolimo Variation |
| 4. H Ree vs Lombardy |
| 1-0 | 41 | 1974 | Amsterdam IBM | D47 Queen's Gambit Declined Semi-Slav |
| 5. Tukmakov vs Sosonko |
| 1-0 | 33 | 1974 | Amsterdam IBM | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
| 6. Timman vs J Kaplan |
| ½-½ | 27 | 1974 | Amsterdam IBM | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 7. Velimirovic vs Ribli |
| 0-1 | 34 | 1974 | Amsterdam IBM | B44 Sicilian |
| 8. A Planinc vs J H Donner |
| ½-½ | 40 | 1974 | Amsterdam IBM | B08 Pirc, Classical |
| 9. Geller vs Ivkov |
| ½-½ | 37 | 1974 | Amsterdam IBM | B77 Sicilian, Dragon, Yugoslav Attack |
| 10. J Kaplan vs Jansa |
| 0-1 | 35 | 1974 | Amsterdam IBM | B46 Sicilian, Taimanov Variation |
| 11. Sosonko vs Lombardy |
| ½-½ | 38 | 1974 | Amsterdam IBM | E04 Catalan, Open, 5.Nf3 |
| 12. Knaak vs Timman |
| 0-1 | 45 | 1974 | Amsterdam IBM | E44 Nimzo-Indian, Fischer Variation, 5.Ne2 |
| 13. J H Donner vs Velimirovic |
| ½-½ | 42 | 1974 | Amsterdam IBM | A76 Benoni, Classical, 9...Re8 |
| 14. Csom vs A Planinc |
 | 0-1 | 34 | 1974 | Amsterdam IBM | A87 Dutch, Leningrad, Main Variation |
| 15. Tukmakov vs K Langeweg |
| 1-0 | 41 | 1974 | Amsterdam IBM | B83 Sicilian |
| 16. Ribli vs H Ree |
| ½-½ | 67 | 1974 | Amsterdam IBM | A05 Reti Opening |
| 17. Timman vs Geller |
| ½-½ | 57 | 1974 | Amsterdam IBM | C93 Ruy Lopez, Closed, Smyslov Defense |
| 18. Ivkov vs Tukmakov |
| ½-½ | 39 | 1974 | Amsterdam IBM | A16 English |
| 19. Jansa vs Knaak |
| 1-0 | 28 | 1974 | Amsterdam IBM | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 20. Lombardy vs Ribli |
| ½-½ | 13 | 1974 | Amsterdam IBM | E60 King's Indian Defense |
| 21. K Langeweg vs Sosonko |
| ½-½ | 14 | 1974 | Amsterdam IBM | E46 Nimzo-Indian |
| 22. Velimirovic vs Csom |
| 1-0 | 26 | 1974 | Amsterdam IBM | B90 Sicilian, Najdorf |
| 23. A Planinc vs J Kaplan |
| ½-½ | 25 | 1974 | Amsterdam IBM | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
| 24. H Ree vs J H Donner |
| 1-0 | 54 | 1974 | Amsterdam IBM | B09 Pirc, Austrian Attack |
| 25. Geller vs Jansa |
| ½-½ | 35 | 1974 | Amsterdam IBM | C89 Ruy Lopez, Marshall |
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| page 1 of 5; games 1-25 of 120 |
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