| Player data |
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 | SNo | 103 | FIDE | 1753 | Local | 2000 |
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| Name | Kokoszczyński, Jan | Fed | POL | R.ChessArbiter | 1953 |
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| Club | LKS LOTOS Jabłonna | Title | I | Local ID | PL-31066 |
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| Code | 1174460 | Sex | M | Birthday | 2002-02-24 |
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| Number of rated opponents: | 9 | Score vs. rated opponents: | 3.0 |
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| Average rating: | 1768 | Rating Change: | -1.52 |
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