| 21st IBM chess tournament :: Amsterdam 1981 |
<< [ Competition summary || Crosstable || 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th | 11th || Information ]
| pos. | name | Elo | flag | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | pts | + | = | - |
| 1. | GM Timman, Jan | 2620 | ● | ½ | ½ | ½ | ½ | ½ | 1 | ½ | ½ | 1 | 1 | 1 | 7½ | 4 | 7 | 0 | |
| 2.-3. | GM Portisch, Lajos | 2650 | ½ | ● | ½ | ½ | 0 | 1 | ½ | ½ | 1 | ½ | 1 | 1 | 7 | 4 | 6 | 1 | |
| 2.-3. | GM Karpov, Anatoly | 2690 | ½ | ½ | ● | 0 | ½ | ½ | ½ | 1 | 1 | ½ | 1 | 1 | 7 | 4 | 6 | 1 | |
| 4.-6. | GM Hort, Vlastimil | 2575 | ½ | ½ | 1 | ● | ½ | ½ | ½ | ½ | ½ | ½ | 1 | ½ | 6½ | 2 | 9 | 0 | |
| 4.-6. | GM Smyslov, Vassily | 2545 | ½ | 1 | ½ | ½ | ● | ½ | ½ | ½ | ½ | ½ | ½ | 1 | 6½ | 2 | 9 | 0 | |
| 4.-6. | GM Kavalek, Lubomir | 2550 | ½ | 0 | ½ | ½ | ½ | ● | ½ | 1 | ½ | ½ | 1 | 1 | 6½ | 3 | 7 | 1 | |
| 7. | IM Ree, Hans | 2485 | 0 | ½ | ½ | ½ | ½ | ½ | ● | ½ | 1 | 1 | ½ | ½ | 6 | 2 | 8 | 1 | |
| 8.-9. | GM Ljubojević, Ljubomir | 2605 | ½ | ½ | 0 | ½ | ½ | 0 | ½ | ● | ½ | ½ | 1 | ½ | 5 | 1 | 8 | 2 | |
| 8.-9. | GM Miles, Anthony John | 2590 | ½ | 0 | 0 | ½ | ½ | ½ | 0 | ½ | ● | ½ | 1 | 1 | 5 | 2 | 6 | 3 | |
| 10. | GM Polugaevsky, Lev | 2620 | 0 | ½ | ½ | ½ | ½ | ½ | 0 | ½ | ½ | ● | ½ | ½ | 4½ | 0 | 9 | 2 | |
| 11. | GM Donner, Jan | 2475 | 0 | 0 | 0 | 0 | ½ | 0 | ½ | 0 | 0 | ½ | ● | 1 | 2½ | 1 | 3 | 7 | |
| 12. | IM Langeweg, Christian | 2455 | 0 | 0 | 0 | ½ | 0 | 0 | ½ | ½ | 0 | ½ | 0 | ● | 2 | 0 | 4 | 7 |
| 1st round | |||||||||
| GM Donner, Jan | 2475 | 0 - 1 | 2620 | GM Timman, Jan | |||||
| GM Hort, Vlastimil | 2575 | 1 - 0 | 2690 | GM Karpov, Anatoly | |||||
| GM Kavalek, Lubomir | 2550 | 1 - 0 | 2605 | GM Ljubojević, Ljubomir | |||||
| IM Langeweg, Christian | 2455 | 0 - 1 | 2590 | GM Miles, Anthony John | |||||
| IM Ree, Hans | 2485 | ½ - ½ | 2650 | GM Portisch, Lajos | |||||
| GM Smyslov, Vassily | 2545 | ½ - ½ | 2620 | GM Polugaevsky, Lev | |||||
| 1.-4. Timman, Hort, Kavalek, Miles 1; 5.-8. Portisch, Smyslov, Ree, Polugaevsky ½; 9.-12. Karpov, Ljubojević, Donner, Langeweg 0; | |||||||||
| 2nd round | |||||||||
| GM Hort, Vlastimil | 2575 | 1 - 0 | 2475 | GM Donner, Jan | |||||
| GM Karpov, Anatoly | 2690 | 1 - 0 | 2605 | GM Ljubojević, Ljubomir | |||||
| GM Miles, Anthony John | 2590 | ½ - ½ | 2550 | GM Kavalek, Lubomir | |||||
| GM Polugaevsky, Lev | 2620 | ½ - ½ | 2455 | IM Langeweg, Christian | |||||
| GM Portisch, Lajos | 2650 | 0 - 1 | 2545 | GM Smyslov, Vassily | |||||
| GM Timman, Jan | 2620 | 1 - 0 | 2485 | IM Ree, Hans | |||||
| 1.-2. Timman, Hort 2; 3.-5. Smyslov, Kavalek, Miles 1½; 6.-7. Karpov, Polugaevsky 1; 8.-10. Portisch, Ree, Langeweg ½; 11.-12. Ljubojević, Donner 0; | |||||||||
| 3rd round | |||||||||
| GM Donner, Jan | 2475 | 0 - 1 | 2690 | GM Karpov, Anatoly | |||||
| GM Kavalek, Lubomir | 2550 | ½ - ½ | 2620 | GM Polugaevsky, Lev | |||||
| IM Langeweg, Christian | 2455 | 0 - 1 | 2650 | GM Portisch, Lajos | |||||
| GM Ljubojević, Ljubomir | 2605 | ½ - ½ | 2590 | GM Miles, Anthony John | |||||
| IM Ree, Hans | 2485 | ½ - ½ | 2575 | GM Hort, Vlastimil | |||||
| GM Smyslov, Vassily | 2545 | ½ - ½ | 2620 | GM Timman, Jan | |||||
| 1.-2. Timman, Hort 2½; 3.-6. Karpov, Smyslov, Kavalek, Miles 2; 7.-8. Portisch, Polugaevsky 1½; 9. Ree 1; 10.-11. Ljubojević, Langeweg ½; 12. Donner 0; | |||||||||
| 4th round | |||||||||
| GM Donner, Jan | 2475 | ½ - ½ | 2485 | IM Ree, Hans | |||||
| GM Hort, Vlastimil | 2575 | ½ - ½ | 2545 | GM Smyslov, Vassily | |||||
| GM Karpov, Anatoly | 2690 | 1 - 0 | 2590 | GM Miles, Anthony John | |||||
| GM Polugaevsky, Lev | 2620 | ½ - ½ | 2605 | GM Ljubojević, Ljubomir | |||||
| GM Portisch, Lajos | 2650 | 1 - 0 | 2550 | GM Kavalek, Lubomir | |||||
| GM Timman, Jan | 2620 | 1 - 0 | 2455 | IM Langeweg, Christian | |||||
| 1. Timman 3½; 2.-3. Karpov, Hort 3; 4.-5. Portisch, Smyslov 2½; 6.-8. Kavalek, Miles, Polugaevsky 2; 9. Ree 1½; 10. Ljubojević 1; 11.-12. Donner, Langeweg ½; | |||||||||
| 5th round | |||||||||
| GM Kavalek, Lubomir | 2550 | ½ - ½ | 2620 | GM Timman, Jan | |||||
| IM Langeweg, Christian | 2455 | ½ - ½ | 2575 | GM Hort, Vlastimil | |||||
| GM Ljubojević, Ljubomir | 2605 | ½ - ½ | 2650 | GM Portisch, Lajos | |||||
| GM Miles, Anthony John | 2590 | ½ - ½ | 2620 | GM Polugaevsky, Lev | |||||
| IM Ree, Hans | 2485 | ½ - ½ | 2690 | GM Karpov, Anatoly | |||||
| GM Smyslov, Vassily | 2545 | ½ - ½ | 2475 | GM Donner, Jan | |||||
| 1. Timman 4; 2.-3. Karpov, Hort 3½; 4.-5. Portisch, Smyslov 3; 6.-8. Kavalek, Miles, Polugaevsky 2½; 9. Ree 2; 10. Ljubojević 1½; 11.-12. Donner, Langeweg 1; | |||||||||
| 6th round | |||||||||
| GM Donner, Jan | 2475 | 1 - 0 | 2455 | IM Langeweg, Christian | |||||
| GM Hort, Vlastimil | 2575 | ½ - ½ | 2550 | GM Kavalek, Lubomir | |||||
| GM Karpov, Anatoly | 2690 | ½ - ½ | 2620 | GM Polugaevsky, Lev | |||||
| GM Portisch, Lajos | 2650 | 1 - 0 | 2590 | GM Miles, Anthony John | |||||
| IM Ree, Hans | 2485 | ½ - ½ | 2545 | GM Smyslov, Vassily | |||||
| GM Timman, Jan | 2620 | ½ - ½ | 2605 | GM Ljubojević, Ljubomir | |||||
| 1. Timman 4½; 2.-4. Portisch, Karpov, Hort 4; 5. Smyslov 3½; 6.-7. Kavalek, Polugaevsky 3; 8.-9. Ree, Miles 2½; 10.-11. Ljubojević, Donner 2; 12. Langeweg 1; | |||||||||
| 7th round | |||||||||
| GM Kavalek, Lubomir | 2550 | 1 - 0 | 2475 | GM Donner, Jan | |||||
| IM Langeweg, Christian | 2455 | ½ - ½ | 2485 | IM Ree, Hans | |||||
| GM Ljubojević, Ljubomir | 2605 | ½ - ½ | 2575 | GM Hort, Vlastimil | |||||
| GM Miles, Anthony John | 2590 | ½ - ½ | 2620 | GM Timman, Jan | |||||
| GM Polugaevsky, Lev | 2620 | ½ - ½ | 2650 | GM Portisch, Lajos | |||||
| GM Smyslov, Vassily | 2545 | ½ - ½ | 2690 | GM Karpov, Anatoly | |||||
| 1. Timman 5; 2.-4. Portisch, Karpov, Hort 4½; 5.-6. Smyslov, Kavalek 4; 7. Polugaevsky 3½; 8.-9. Ree, Miles 3; 10. Ljubojević 2½; 11. Donner 2; 12. Langeweg 1½; | |||||||||
| 8th round | |||||||||
| GM Donner, Jan | 2475 | 0 - 1 | 2605 | GM Ljubojević, Ljubomir | |||||
| GM Hort, Vlastimil | 2575 | ½ - ½ | 2590 | GM Miles, Anthony John | |||||
| GM Karpov, Anatoly | 2690 | ½ - ½ | 2650 | GM Portisch, Lajos | |||||
| IM Ree, Hans | 2485 | ½ - ½ | 2550 | GM Kavalek, Lubomir | |||||
| GM Smyslov, Vassily | 2545 | 1 - 0 | 2455 | IM Langeweg, Christian | |||||
| GM Timman, Jan | 2620 | 1 - 0 | 2620 | GM Polugaevsky, Lev | |||||
| 1. Timman 6; 2.-5. Portisch, Karpov, Hort, Smyslov 5; 6. Kavalek 4½; 7.-10. Ree, Ljubojević, Miles, Polugaevsky 3½; 11. Donner 2; 12. Langeweg 1½; | |||||||||
| 9th round | |||||||||
| GM Kavalek, Lubomir | 2550 | ½ - ½ | 2545 | GM Smyslov, Vassily | |||||
| IM Langeweg, Christian | 2455 | 0 - 1 | 2690 | GM Karpov, Anatoly | |||||
| GM Ljubojević, Ljubomir | 2605 | ½ - ½ | 2485 | IM Ree, Hans | |||||
| GM Miles, Anthony John | 2590 | 1 - 0 | 2475 | GM Donner, Jan | |||||
| GM Polugaevsky, Lev | 2620 | ½ - ½ | 2575 | GM Hort, Vlastimil | |||||
| GM Portisch, Lajos | 2650 | ½ - ½ | 2620 | GM Timman, Jan | |||||
| 1. Timman 6½; 2. Karpov 6; 3.-5. Portisch, Hort, Smyslov 5½; 6. Kavalek 5; 7. Miles 4½; 8.-10. Ree, Ljubojević, Polugaevsky 4; 11. Donner 2; 12. Langeweg 1½; | |||||||||
| 10th round | |||||||||
| GM Donner, Jan | 2475 | ½ - ½ | 2620 | GM Polugaevsky, Lev | |||||
| GM Hort, Vlastimil | 2575 | ½ - ½ | 2650 | GM Portisch, Lajos | |||||
| GM Karpov, Anatoly | 2690 | ½ - ½ | 2620 | GM Timman, Jan | |||||
| IM Langeweg, Christian | 2455 | 0 - 1 | 2550 | GM Kavalek, Lubomir | |||||
| IM Ree, Hans | 2485 | 1 - 0 | 2590 | GM Miles, Anthony John | |||||
| GM Smyslov, Vassily | 2545 | ½ - ½ | 2605 | GM Ljubojević, Ljubomir | |||||
| 1. Timman 7; 2. Karpov 6½; 3.-6. Portisch, Hort, Smyslov, Kavalek 6; 7. Ree 5; 8.-10. Ljubojević, Miles, Polugaevsky 4½; 11. Donner 2½; 12. Langeweg 1½; | |||||||||
| 11th round | |||||||||
| GM Kavalek, Lubomir | 2550 | ½ - ½ | 2690 | GM Karpov, Anatoly | |||||
| GM Ljubojević, Ljubomir | 2605 | ½ - ½ | 2455 | IM Langeweg, Christian | |||||
| GM Miles, Anthony John | 2590 | ½ - ½ | 2545 | GM Smyslov, Vassily | |||||
| GM Polugaevsky, Lev | 2620 | 0 - 1 | 2485 | IM Ree, Hans | |||||
| GM Portisch, Lajos | 2650 | 1 - 0 | 2475 | GM Donner, Jan | |||||
| GM Timman, Jan | 2620 | ½ - ½ | 2575 | GM Hort, Vlastimil | |||||
| 1. Timman 7½; 2.-3. Portisch, Karpov 7; 4.-6. Hort, Smyslov, Kavalek 6½; 7. Ree 6; 8.-9. Ljubojević, Miles 5; 10. Polugaevsky 4½; 11. Donner 2½; 12. Langeweg 2; | |||||||||
| 21st IBM chess tournament | |
| Dates: | 1981 |
| City: | Amsterdam (Netherlands) |
| Venue: | |
| Organizers: | Amsterdam chess club VAS |
| Chief Arbiter: | |
| Players participating: | 12 (incl. 10 GMs, 2 IMs) |
| Games played: | 66 |
| Competition format: | Round Robin |
| Tie-breaks: | none |
| Time control: | |
| PGN game file: | ibm-1981.pgn |