Rilton Cup

In 1971, Tore Rilton sent a donation to the organisers of the Stockholm Open chess tournament, with the instructions to use them to "organise a strong chess tournament". Due to this donation the event was named Rilton Cup and its first edition took place in 1971/1972.^[1][3] This inaugural version of the tournament was won by Jan Timman with 7.5 points; Walter Browne finished 2nd with 7 points and Einar Hatlebakk 3rd with 6.5.^[1] After Rilton's death, the Rilton Cup continued to be funded by Dr. Tore Rilton's Memorial Fund.^[4]

The Rilton Cup's 50th edition was to be played in 2020/2021, however it was postponed due to the COVID-19 pandemic. In its place, an invitational knockout tournament, the Rilton Winners' Cup, was held.^[5] The tournament took place on chess.com, with 16 participants. The time control for the matches was 15+10, and 5+3 for the tiebreaks. Krishnan Sasikiran won the event by defeating 2—0 the runner-up, Aleksandr Shimanov in the finals.^[6] The Rilton Cup's 50th edition was cancelled again in 2021-2022 and was postponed for 2022–2023.

The 50th edition of Rilton Cup took place from 22 December 2022 to 5 January 2023. This edition of the tournament was also the first international tournament eligible for the 2023 FIDE Circuit.^[7] Pranesh M won the tournament with 8 points in 9 rounds, scoring his final GM norm, with Kaan Kucusar finisingf 2nd and Nikita Meshkovs 3rd, both with 7 points.^[8]