| Player data |
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 | SNo | 3 | FIDE | 1784 | Local | 2000 |
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| Name | Kosakowski, Jakub | Fed | POL | R.ChessArbiter | 2224 |
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| Club | MKSz-MDK Białystok | Title | I | Local ID | PL-27934 |
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| Code | 1185080 | Sex | M | Birthday | 2002-01-07 |
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| | Opponnents |
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| Round | Color | Score | S.No. | Total | Local ID | Title | Name | FIDE | Local | Club |
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| 1 | w | 1 | 46 | 4.0 | PL-26643 | II | Sienkiewicz, Szymon | 1408 | 1800 | KSz Maraton Łomża | | 2 | b | 1 | 28 | 6.0 | PL-32226 | II+ | Laszczak, Przemysław | 1495 | 1800 | MTSz Mińsk Mazowiecki | | 3 | w | 1 | 23 | 6.0 | PL-41028 | II | Dąbrowski, Damian | 1588 | 1800 | KSz Pod Wieżą Szczecin | | 4 | b | 1 | 34 | 8.0 | PL-26388 | II | Leśkiewicz, Ignacy | 1478 | 1800 | UKS Smecz Konin | | 5 | w | = | 21 | 7.0 | PL-28806 | II | Ochowicz, Jakub | 1598 | 1800 | UKS Czarny Koń Olkusz | | 6 | w | = | 1 | 8.5 | PL-29659 | I++ | Gumularz, Szymon | 1836 | 2100 | TS Wisła Kraków | | 7 | b | 1 | 10 | 8.0 | PL-33850 | I | Chylewski, Patryk | 1613 | 2000 | UKS Szachylice Chylice | | 8 | b | 1 | 4 | 7.5 | PL-19764 | I | Łukasiewicz, Krzysztof | 1817 | 2000 | UKS SP3 w Bogatyni | | 9 | w | = | 6 | 7.0 | PL-26451 | I | Kowalski, Igor | 1816 | 2000 | KSz Polonia Warszawa | | 10 | b | = | 14 | 7.5 | PL-21731 | II+ | Garbowski, Jakub | 1700 | 1800 | KSz Gambit Szemud | | 11 | w | 1 | 5 | 8.0 | PL-38364 | I | Psyk, Radosław | 1817 | 2000 | KSz Piątka Skierniewice |
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| Number of rated opponents: | 11 | Score vs. rated opponents: | 9.0 |
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| Average rating: | 1651 | Rating Change: | 1.76 |
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