| Results |
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| Crosstable scores |
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Event table notes
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| Event data |
| Name: United Amsterdam Chess Club Winter Tournament |
| Place: Amsterdam |
| Start date: 1925 |
| End date: 1926 |
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| Notes: |
| Sonnenberg did not play van Hoorn or Moldauer. |
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| References |
| Books |
| Di Felice, Chess Results, 1921-1930, page 126 |
| Gaige, Chess Tournament Crosstables IV, page 686 |
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