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Problem authors

Problem Source
Problems
Average Difficulty
Kwee Lung Sin37.9Hard
Kyle See26.4Hard
Lalitha Kuppa33.7Medium
Lap Chi Lau15.9Hard
Larry D. Pyeatt26.2Hard
Larry Pyeatt32.8Medium
Lars Huth17Hard
Lars Åström33.8Medium
Lau Lap Chi15.6Hard
Law Wai Hon23.8Medium
Lawry Sorenson25.3Medium
Lech Duraj106.2Hard
Lee Chun Yin17.5Hard
Lenny Wu16.3Hard
Leo Osvald25.9Hard
Leszek Horwath17.1Hard
Leung Kai Man18.6Hard
Lewin Gan307.2Hard
Li Cheuk Ting27.8Hard
Liam Keliher464.9Medium
Logan Pipes16.7Hard
Loke Gustafsson86.9Hard
Louis Jachiet19Hard
Lovisa Diding23.4Medium
Lucas Schwebler26.8Hard
Lucas Wood13.5Medium
Lucas Xia24.7Medium
Ludo Pulles17.1Hard
Luis Hernández Corbato18.3Hard
Luka Kalinovčić55.5Medium
Luke Son13.3Medium
Lukáš Poláček505.8Hard
Maarten Sijm33.9Medium
Maciej Liskiewicz17.1Hard
Magne Vikjord36.1Hard
Magni Steinn Þorbjörnsson34.8Medium
Magnus Heghdal18Hard
Magnus Øian24.3Medium
Mahbubul Hasan27.2Hard
Maj Stenmark64.2Medium
Malcolm Sharpe116.2Hard
Manuel Abellanas17.4Hard
Manuel Freire12.9Medium
Maple17.3Hard
Marc Furon35.5Hard
Marc Phua Hsiao Meng106.9Hard
Marc Vinyals156.2Hard
Marcel Wienöbst16.3Hard
Marcin Kubica16.8Hard
Marcus Isaksson15.5Hard
Margarida Mamede44.8Medium
Marian Zuska16.1Hard
Marin Tomić94.6Medium
Mario Nakazawa12.2Easy
Marius Andrei16.5Hard
Mark Braganza16Hard
Mark Gordon17.4Hard
Mark Theng Kwang Hui27.1Hard
Marko Berezovsky75.3Medium
Marko Ivanković104.1Medium
Markus Dregi46.3Hard
Markus Fanebust Dregi15.7Hard
Markus S. Dregi46.7Hard
Martin Kacer46.4Hard
Martin Kačer17.5Hard
Martin Macko13.8Medium
Martin Tran62.6Easy
Martynas Kriaučiūnas17.4Hard
Massimo Cairo19Hard
Mathijs de Weerdt12.9Medium
Matias Holte12.7Easy
Matija Milišić18.7Hard
Mats Petter Pettersson11.5Easy
Mats Petter Wallander19.4Hard
Matt Davison32.6Easy
Matt Fontaine26.4Hard
Matthew Ng Zhen Rui64.3Medium
Matthias Bayerlein13.8Medium
Matthias Ruhl35.9Hard
Mattias Akke55.1Medium
Max Wilson12.3Easy
Maximilian Fichtl16.6Hard
Maximilliano Utomo Quok37.5Hard
Mees de Vries284.8Medium
Mehfuz A Rahman14.3Medium
Micah Stairs66.7Hard
Michael Baer15.9Hard
Michael Bradet-Legris13.3Medium
Michael C Slattery16.4Hard
Michael Goldwasser74.9Medium
Michael Zmuda11.6Easy
Michael Zündorf176.2Hard
Michal Forišek62.9Medium
Michał Pilipczuk55.3Medium
Michał Sapalski17Hard
Miguel Araújo65.6Hard
Miguel Oliveira66.4Hard
Mikael Goldmann175.4Medium
Mike Domaratzki36.2Hard
Mike Nguyen26.5Hard
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