Jan-Krzysztof Duda (; born 26 April 1998) is a Polish chess grandmaster. A prodigy, he achieved the grandmaster title in 2013 at the age of 15 years and 21 days. he is ranked No. 1 in Poland and No. 18 in the world. His personal best rating of 2760 makes him the highest ranked Polish player of all time. Duda won the Polish Championship in 2018 and the Chess World Cup in 2021. He is a bronze medallist at the European Team Chess Championship in 2021 and he also competed in the Candidates Tournament 2022 finishing seventh. He was awarded the Golden Cross of Merit for his achievements in chess. Chess career 2007–2008 In 2007, Duda placed first in the U8 Polish Youth Championship chess tournament. In 2008, Duda won the World Youth Chess Championship in the under-10 category and as a result he was awarded the title of FIDE Master. The same year, he also won the U8 Polish Youth Championship tournament for the second time. 2012 In 2012, Duda won the Polish under-18 championship in Solina and the European Youth Chess Championship in the under-14 category in Prague. In the same year, he tied for first with Jan Krejčí in the Olomouc Chess Summer tournament and was awarded the title of International Master. 2013–2014 In May 2013, Duda achieved his final norm required for the title of Grandmaster, in the European Individual Championship, at the age of 15 years and 21 days. This made him the second youngest grandmaster in the world at the time. Duda also thus became the second youngest Polish grandmaster ever, after Dariusz Świercz. In April 2013, he came first in the First Saturday GM tournament in Budapest. In August, Duda took part as a FIDE presidential nominee in the FIDE World Cup, where he was eliminated in the first round by Vassily Ivanchuk. In October, FIDE officially awarded him the title of Grandmaster. In August 2014, Duda played for the Polish team at the 41st Chess Olympiad in Tromsø, Norway, scoring 8.5/11 on board three. In December 2014, he won the European Rapid Chess Championship and took silver in the European Blitz Chess Championship, both held in Wrocław, Poland. 2015–2016 In July 2015, Duda won the Lake Sevan round-robin tournament in Martuni, Armenia. In September 2015, he finished equal first with Mikhail Antipov in the World Junior Chess Championship in Khanty-Mansiysk, Russia, and