The 7th World Puzzle Championship (and Congress) took place September 22 – 27, 1998 in Istanbul.
Individual results
| Rank | Name | Country |
|---|---|---|
| 1 | Wei-Hwa Huang | USA |
| 2 | Akira Nakai | JPN |
| 3 | Zack Butler | USA |
| 4 | Michael Ley | GER |
| 5 | Shinichi Aoki | JPN |
| 6 | Niels Roest | NED |
| 7 | Robert Babilon | CZE |
| 8 | Norikazu Shibata | JPN |
| 9 | Gyorgy Istvan | HUN |
| 10 | Miklos Mocsy | HUN |
Team results
| Rank | Team |
|---|---|
| 1 | USA |
| 2 | Japan |
| 3 | Hungary |
| 4 | Netherlands |
| 5 | Czech Republic |
| 6 | Germany |
| 7 | Turkey |
| 8 | Russia/Ukraine |
| 9 | Romania |
| 10 | Poland |