Bulski, Krzysztof had FIDE-ID 1121499 and is not listed at FIDE Player Database anymore.
Iwulski, Krzysztof has FIDE-ID 41816846 and is listed with Birthday 2012 at FIDE Player Database
They appear to be two different players.
Do you use the complete player rating data from ratings202507.zip.?
Last edit: Uwe 2025-08-23
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The FIDE-ID 1121499 is not korrekt! The number sequence has only 7 digits.
The FIDE ID has at least 8 but also 9 digits.
Iwulski, Krzysztof = 41816846 There ist no Bulski, Krzysztof in the FIDE-Database!
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Bulski, Krzysztof had FIDE-ID 1121499 and is not listed at FIDE Player Database anymore.
Iwulski, Krzysztof has FIDE-ID 41816846 and is listed with Birthday 2012 at FIDE Player Database
They appear to be two different players.
Do you use the complete player rating data from ratings202507.zip.?
Last edit: Uwe 2025-08-23
The FIDE-ID 1121499 is not korrekt! The number sequence has only 7 digits.
The FIDE ID has at least 8 but also 9 digits.
Iwulski, Krzysztof = 41816846
There ist no Bulski, Krzysztof in the FIDE-Database!
Sorry, there are korrekt FIDE-ID with 7 digits. But the FIDE-ID 1121499 is not in the FIDE-Database.