Jansaia Daniarqyzy Äbdımälik (; born 12 January 2000) is a Kazakhstani chess grandmaster. She is the first Kazakhstani woman and the first woman from Central Asia, and the 39th woman overall, to earn the GM title. Abdumalik has a peak FIDE rating of 2505 and has been ranked as high as No. 11 in the world among women. Abdumalik has been a two-time girls' World Youth Champion as well as a girls' World Junior Champion. She is also a two-time Kazakhstani women's national champion, and has represented Kazakhstan in women's events at the Chess Olympiad, World Team Chess Championship, and the Asian Nations Chess Cup. On April 20, 2022, Zhansaya became the President of the Almaty Chess Federation.

Abdumalik began playing chess at age five. She emerged as a chess prodigy, first qualifying for the girls' World Youth Championships at age seven and winning gold medals at the under-8 level at age eight and the under-12 level at age eleven. She earned the Woman Grandmaster (WGM) title at 14 years old in 2014 and the International Master (IM) title at 16 years old in 2016. Having previously earned silver and bronze medals at the under-20 girls' World Junior Championship, she won the gold medal in 2017. After achieving all of her norms for the GM title across 2017 and 2018, Abdumalik became a Grandmaster in 2021 by reaching the 2500 rating threshold in Gibraltar in the last leg of the FIDE Women's Grand Prix 2019–21. She also had a career-best performance rating of 2699 at the tournament. In her career, she has defeated several Grandmasters rated above 2600, including Yaroslav Zherebukh when he was rated 2642 to help earn her first GM norm.

Early life and background Zhansaya Abdumalik was born on 12 January 2000 to Alma and Daniyar Ashirov in Almaty. Her parents made her last name the same as the first name of her paternal grandfather at his request in large part because he told her parents that she would become famous if they gave her that name. She was taught how to play chess by her father at age five and joined a chess school with her older brother Sanzhar at age six. While her brother switched from chess to track and field after three years, Abdumalik stayed in chess and quickly emerged as a prodigy. She entered her first tournament, Almaty's city championships, the same year she started training at a chess school. In January 2007, she became the under-8 Kazakhstani national champion the same month she turned seven years old. As a result, she qualified for the under-8 girls' division of the World Youth Chess Championships, where she finished in fourth place with a score of 8/11. During 2007, she also began working with Nikolay Peregudov, a Kazakhstani International Master (IM).

A year later, Abdumalik again participated in the under-8 girls' World Youth Championship, this time in Vũng Tàu in Vietnam, and won the gold medal. After a loss in her opening game, she won her final ten games, including victories over Qiyu Zhou, Gunay Mammadzada, and Kelly Wang, who finished in second, third, and fourth place respectively. Her score of 10/11 was 1½ points ahead of Zhou in second place. With this gold medal, she became the first Kazakhstani world champion in chess. Earlier in the year, she had also won the same division of the Asian Youth Chess Championships. After working with Peregudov through 2011, Abdumalik spent a year at the ASEAN Chess Academy in Singapore training with Zhang Zhong, a Singaporean Grandmaster (GM). Back in Kazakhstan, she then was coached for several years by David Arutinian, a Georgian GM, and Vladimir Chuchelov, a Belgian GM who had coached the Dutch national team. When Abdumalik was around 18 years old, she was working with Zahar Efimenko, a Ukrainian GM who was a second to world champion Vladimir Kramnik.

Chess career 2009–2014: Under-12 World Champion, WGM at age 14

Abdumalik earned her first FIDE rating in April 2009, starting out at 1854 at age nine. She was directly awarded the Woman FIDE Master (WFM) title at age 10 as a result of her silver medal in the under-10 girls' division at the 2010 World Youth Championship in Greece. A year later, she was directly awarded the Woman International Master (WIM) title as a result of her silver medal in the under-20 girls' division of the 2011 ASEAN+ Age Group Championships in Indonesia. She finished in joint first place at both tournaments, but ended up in second because of the tiebreak criteria. At the World Championships, she tied with the winner Nomin-Erdene Davaademberel with a score of 9/11, a point ahead of third place. At the ASEAN Championships, she scored 6½/9 to tie with the winner Võ Thị Kim Phụng and the bronze medallist Chelsie Monica Ignesias Sihite.

During 2011, Abdumalik also reached milestone ratings of 2000 and 2100 for the first time. Her earliest tournament that counted towards her rating in 2011 was the 2010 World Chess Tour IM tournament in Moscow, where she gained 62 rating points. Although she entered the tournament with a rating of 1870, she scored 5½/12 against much higher-rated opponents, including five draws against five International Masters and a win against Pavel Rozanov, a FIDE Master (FM) rated 2297. A series of large rating jumps culminated in Abdumalik winning her second World Championship title at the end of the year, this time in Brazil in the under-12 girls' division. She scored 8/9, a full point ahead of second place. In addition to her second World Championship, she also won the under-11 girls' division of the World School Chess Championship for the second year in a row earlier in the year. Abdumalik came close to defending her under-12 World Championship the following year in 2012, but finished in joint second place. She scored 8½/11, a ½ point behind the winner, Vaishali Rameshbabu, the only player she lost to during the event. She also participated in the under-20 girls' World Junior Chess Championships that year for the first time, scoring 7/13. Outside of the world championships, Abdumalik earned her first Woman Grandmaster (WGM) norm at the Alushta summer tournament in Ukraine, where she scored 7/11 and was undefeated against players with an average rating of 2282.

During 2013, Abdumalik crossed ratings of 2200 and 2300 for the first time. She entered the Kazakhstani women's national championship and finished runner-up to Guliskhan Nakhbayeva, who won on the tiebreak criteria after they both scored 7/9. She also entered the open section of the under-20 junior national championship and won both the rapid and blitz events. Later in the year, Abdumalik had a breakthrough at the World Junior Championships in Turkey. She won the silver medal as a 13-year-old with a score of 9½/13, a point behind only Aleksandra Goryachkina, one of the two players she lost to in the event. Among the players Abdumalik defeated in the event was Deysi Cori, a WGM rated 2433. With this achievement, she earned her second WGM norm and was later named the Best Girl Under-20 at the 1st Annual Asian Chess Excellence Awards. Late in the year, Abudmalik had another big achievement, winning the Brno Open in the Czech Republic as the sixth-highest rated player in the event. She scored 7½/9, a full point ahead of the two highest-rated players, Toms Kantāns and Vojtěch Plát, who came in joint second with several others. Abdumalik began 2014 by achieving her final WGM norm at the Gibraltar Chess Festival in February. She scored 5½/10 against opponents with an average rating of 2366, notably defeating Felipe El Debs, a GM rated 2520. As she had already reached the 2300 rating threshold, she earned the WGM title less than a month after turning 14 years old. She had another successful result in speed chess later in the year, winning the bronze medal in 2014 Asian Women's Blitz Championship behind gold medallist Tan Zhongyi and silver medallist Dronavalli Harika. Her career-best rating during the year was 2379.

2015–2016: International Master title

Abdumalik satisfied her first two requirements for the IM title in 2015, securing her first IM norm at the Reykjavik Open, which in turn also helped her reach the 2400 rating threshold needed for the title. During the tournament, she defeated two Icelandic GMs, Henrik Danielsen and Héðinn Steingrímsson, and won six games in total as part of a 6½/10 overall score. Towards the end of the year, Abdumalik scored 9½/13 for the second time in three years at the World Junior Championships, which were held in Khanty-Mansiysk in Russia. With this performance, she won the bronze medal, having tied with silver medallist Alina Bivol and finishing a ½ point behind the winner Nataliya Buksa. Although she lost two games, including one to Bivol, she was the only player to defeat Buksa.

Abdumalik completed her two remaining requirements for the IM title in 2016. She earned her second IM norm at the Women's Asian Nations Cup with a 5½/7 start to the tournament. She followed this up by winning her first Kazakhstani women's national championship towards the middle of the year. As the top seed, she again scored 7/9, this time a ½ point ahead of Yelena Ankudinova in second place. At the end of the year, she also won the Krystyna Hołuj-Radzikowska Memorial tournament for her third and final IM norm. She scored 7/9 against opponents with an average rating of 2403, a ½ point ahead of second-place finisher Anastasia Bodnaruk. Overall, she compiled a performance rating of 2623, having scored 1½ points above what was needed for the IM norm. With this performance, she became an International Master at age 16, about a month before turning 17. Back in speed chess, Abdumalik played the Women's World Rapid and Blitz Chess Championships, finishing in sixth place in the World Rapid event.

2017–2021: World Junior Champion, Grandmaster title

Abdumalik maintained a rating in the low 2400s throughout nearly all of 2017. Although only the 42nd highest-ranked player in a field of 118 at the Aeroflot Open B, she finished in 15th place, one point behind the winner. After she lost rating points in the middle of year, in part from a third-place finish at the Kazakhstani women's national championship, Abdumalik recovered by earning her first GM norm at the World Open in the United States. She scored 7/9 to finish in equal second place and won the prize for the top finisher among players rated between 2300 and 2449 by a full point. She faced six GMs and defeated three of them, including Yaroslav Zherebukh, who was rated 2642 and remains the highest-rated player she has ever defeated. Her performance rating for the tournament was 2650. Abdumalik closed out the year by winning the World Junior Championship in Italy. As the top seed, she finished a point ahead of second place with 9½/11, clinching the gold medal in the last round with a win against Jennifer Yu. At the Women's World Rapid and Blitz Championships at the very end of the year, Abdumalik had another top ten finish, coming in eighth place in the World Blitz event out of 100 participants behind only GMs.