Istvan Karacsony
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| Player ID | 31809 |
| First Name | Istvan |
| Last Name | Karacsony |
| Sex | M |
| User ID | 0 |
| Club (used in grading individual event) | Wanstead |
| DOB | **** |
| Local Rating | 1943 |
| Local Rapid Rating | 0 |
| FIDE Code | 725030 |
| FIDE Federation | HUN |
| Lichess ID | DarthGandalf |
| Chess.com ID | DarthGandalf |
| ECF Grading Code | 340183C |
| Membership Number (entered manually) | |
| Membership Number (from grading list) | |
| ECF Online Standard | 1945 |
| ECF Online Rapid | 1593 |
| ECF Online Blitz | 1558 |
| ECF Monthly Rapid | 1590 |