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Problem authors

Problem Source
Problems
Average Difficulty
Graeme Kemkes12.8Medium
Graeme Zinck24Medium
Grayden Price34Medium
Greg Hamerly1063.6Medium
Gregor Behnke95.4Medium
Gregor Matl24.3Medium
Gregor Schwarz36.3Hard
Grzegorz Herman37.8Hard
Gu Jin37.3Hard
Gunnar Kreitz115.2Medium
Gustav Kalander96.2Hard
Gustav Matula13.9Medium
Gustav Nilsson Gisleskog56Hard
Hannes Kristján Hannesson412.8Easy
Hans Wennborg13.8Medium
Hao Guo14.4Medium
Haochen Chen45.6Hard
Harrison Fang22.8Easy
Harry Smit95.8Hard
Harry Zhang283.8Medium
Harry Zhou56.3Hard
Hazem Issa26.7Hard
Henrik Eriksson43.1Medium
Henry Huang76.3Hard
Henry Wang24.3Medium
Henry Xia46.3Hard
Hjalti Magnússon33.6Medium
Hlíf Arnbjargardóttir13.3Medium
Ho Lyun Jeong106.3Hard
Hon Man Hin36.3Hard
Honwi (Kenneth) Zhen15.5Hard
Honwi Zhen12.1Easy
Howard Cheng454Medium
Howard Whitston33.2Medium
Huang Xing Chen18.7Hard
Hubert Teo Hua Kian36.8Hard
Hugo Eberhard16.3Hard
Hugo Söderbergh32.3Easy
Hung Chun Ho18.3Hard
Håkan Strömberg12.3Easy
Hélène Verhaeghe12.6Easy
Ian DeHaan134.8Medium
Ian Munro12.8Medium
Ian Parrish16.7Hard
Ignas Kancleris16Hard
Igor Naverniouk17Hard
Ike Erdman11.4Easy
Illia Shkirko35.7Hard
Inda++1817.1Hard
Ioana Ilena18.1Hard
Irina Kostitsyna15.1Medium
Irvan Jahja86Hard
Isaac Arvestad43.9Medium
Isaac Chan13.1Medium
Isaac Lee37.1Hard
Ivan Fefer24.2Medium
Ivan Fever11.7Easy
Ivan Gaspardy14.5Medium
Ivan Katanić65.8Hard
Ivan Paljak75.2Medium
Ivona Bezakova86.2Hard
Ivona Bezáková14.1Medium
Ivor Page34.8Medium
Jaap Eldering55.8Hard
Jack Garner62.9Medium
Jack Golden15.2Medium
Jack Rosenthal93Medium
Jacob Merizia14Medium
Jacob Plachta34.7Medium
Jacob Skitsko16.2Hard
Jacob Zhang85.1Medium
Jacques-Henri Jourdan17Hard
Jaehyun Park16.7Hard
Jakob Israelsen24.1Medium
Jakob Krainz35.2Medium
Jakub Onufry Wojtaszczyk75.7Hard
Jakub Pachocki28.5Hard
Jakub Radoszewski15.4Medium
Jakub Tarnawski17.2Hard
Jakub Závodný18.3Hard
Jalal Almhana24.8Medium
James Feher52.7Easy
James Hughes14.9Medium
James R (Bob) Bradley12Easy
James Rettie17.2Hard
James Stanley13.2Medium
Jan Elffers45.2Medium
Jan Kuipers86.1Hard
Jan Stoklasa17.2Hard
Jannik Olbrich45.5Medium
Jared Lincenberg13.6Medium
Jasmin Studer14.3Medium
Jason Cannon43.4Medium
Jason Huang25.2Medium
Jason Liu34.2Medium
Jason Oliphant62.8Easy
Jason Pham13.6Medium
Javier Gómez Serrano36.5Hard
Jayden Pahukula42.3Easy
Jean Niklas L'orange425.4Medium
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