| Player data |
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 | SNo | 38 | FIDE | 1769 | Local | 2000 |
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| Name | Prokopczuk, Antoni | Fed | POL | Birthday | 1939-05-15 |
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| Club | KKSz Szach Kędzierzyn-Koźle | Title | I | Local ID | PL-3697 |
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| Code | 1113747 | Sex | M | State | OP |
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| Number of rated opponents: | 7 | Score vs. rated opponents: | 1.5 |
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| Average rating: | 1832 | Rating Change: | -1.39 |
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