Problem authors

Problem Source
Problems
Average Difficulty
Khaled Ismaeel14.4Medium
Kimberly Brown25.3Medium
Konráð Elí Sigurgeirsson92.6Easy
Kostiantyn Denysov15.2Medium
Kriangsiri Malasri94.1Medium
Kristof Unterweger15.4Medium
Kristoffer Arnsfelt Hansen16Hard
Kristoffer Æsøy34Medium
Kuan Wei Heng13.6Medium
Kwee Lung Sin37.4Hard
Kyle H18.8Hard
Kyle See26.3Hard
Lalitha Kuppa33.5Medium
Lammert Westerdijk11.8Easy
Lap Chi Lau15.2Medium
Larry D. Pyeatt25.8Hard
Larry Pyeatt32.7Easy
Lars Huth16.8Hard
Lars Åström33.6Medium
Lau Lap Chi14.5Medium
Law Wai Hon23.6Medium
Lawry Sorenson274.6Medium
Lech Duraj106Hard
Lee Chun Yin17Hard
Lenny Wu15.5Hard
Leo Lee15.5Hard
Leo Osvald25.3Medium
Leszek Horwath17.1Hard
Leung Kai Man17.9Hard
Levi Sprung11.7Easy
Lewin Gan307.2Hard
Li Cheuk Ting28.1Hard
Liam Keliher514.7Medium
Liam Warfield11.5Easy
Logan Pipes16.6Hard
Loke Gustafsson96.1Hard
Louis Jachiet18.9Hard
Lovisa Diding54Medium
Luca Versari19Hard
Lucas Alber14.6Medium
Lucas Gretta36.1Hard
Lucas Schwebler36.6Hard
Lucas Weaver14.3Medium
Lucas Wood13.2Medium
Lucas Xia35.6Hard
Ludo Pulles37.2Hard
Luis Hernández Corbato18.4Hard
Luka Kalinovčić55.1Medium
Luke DiGiovanna16.5Hard
Luke Son13Medium
Lukáš Poláček505.5Medium
Maarten Sijm93.6Medium
Maceo Cardinale Kwik17.3Hard
MachineFossil14.1Medium
Maciej Liskiewicz16.5Hard
Magne Vikjord35.6Hard
Magni Steinn Þorbjörnsson56.3Hard
Magnus Heghdal18.6Hard
Magnus Øian23.8Medium
Magnús Már Halldórsson54.5Medium
Mahbubul Hasan27.6Hard
Maj Stenmark93.1Medium
Malcolm Sharpe116Hard
Manuel Abellanas17.2Hard
Manuel Freire12.5Easy
Manuel Torres Cid17Hard
Maple18.7Hard
Marc Furon35.5Medium
Marc Phua Hsiao Meng106.4Hard
Marc Vinyals155.9Hard
Marcel Wienöbst35.1Medium
Marcin Kubica17.2Hard
Marcus Isaksson15.1Medium
Margarida Mamede44.4Medium
Marian Zuska14.2Medium
Marin Tomić94.4Medium
Mario Nakazawa12.2Easy
Marius Andrei16.2Hard
Mark Braganza14.4Medium
Mark Gordon17.5Hard
Mark McCormick18.2Hard
Mark Sturtevant83.4Medium
Mark Theng Kwang Hui26.7Hard
Mark Wen27.3Hard
Marko Berezovsky75.1Medium
Marko Ivanković103.8Medium
Markus Dregi46.3Hard
Markus Fanebust Dregi15.3Medium
Markus S. Dregi46.1Hard
Martin Kacer46.2Hard
Martin Kačer17.7Hard
Martin Macko13.6Medium
Martin Tran62.4Easy
Martynas Kriaučiūnas14.9Medium
Massimo Cairo19Hard
Mateusz Radecki17.8Hard
Mathijs de Weerdt12.7Easy
Matias Holte12.3Easy
Matija Milišić18.9Hard
Mats Petter Pettersson11.3Easy