Match Koltanowski vs. Grob, Zürich
21-10-1937 > 25-10-1937
| Koltanowski, George | BEL | ½ | 1 | ½ | 0 | 2 |
| Grob, Henry | SUI | ½ | 0 | ½ | 1 | 2 |
[1] gives the full round-by-round results. [2] gives one game, which is unfortunately the only one I have. In it, Koltanowski overstepped the time limit in a position where he had an extra piece. [3] gives the exact dates, as was kindly pointed out to me by Mr. Philip Jurgens.

- All but one of the games.
- The exact dates.
Sources
- Journal de Genève 25 & 29-10-1937
- Volk en Staat 30-10-1937
- Neue Zürcher Zeitung 21-10-1937
- Zürcher Illustrierte Vol.13 No.45
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