| Player data |
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 | SNo | 11 | FIDE | 1789 | Local | 2000 |
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| Name | Duda, Ryszard | Fed | POL | R.ChessArbiter | 1932 |
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| Club | KS DORS Ruda Śląska | Title | I | Local ID | PL-5657 |
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| Code | 1177516 | Sex | M | Birthday | 1968 |
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| Number of rated opponents: | 9 | Score vs. rated opponents: | 5.5 |
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| Average rating: | 1756 | Rating Change: | 0.66 |
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