One of the chess world’s innovative formats, 3-Check, delivered plenty of excitement as the 2026 Chess.com 3-Check Championship came to a close. Last year’s impressive runner-up, FIDE Master (FM) Vasilios Kasioumis, climbed to the top this time by lifting the championship trophy. With his consistent play and strategic depth, Kasioumis outperformed his rivals and fully made up for last year’s disappointment with an outright triumph. This year’s runner-up was International Master (IM) Toivo Keinanen, who stood out with his fighting play in the final.
Kasioumis' Path to the Title: Strategy and Experience
Entering the event as one of the favorites, Kasioumis earned widespread praise for his outstanding play throughout the tournament. Masterfully applying the unique subtleties of the 3-Check format—namely, the principle of checking the opponent’s king three times or delivering checkmate—Kasioumis established a clear edge over his opponents at every stage, from his opening choices to his middlegame plans and even his endgame maneuvers. His ability to make the right decisions in critical moments and remain calm under pressure was among the key factors that carried him to victory. It was also clear that last year’s experience played an important role in this year’s success.
The Grand Final featured a thrilling battle between Kasioumis and one of the tournament’s surprise standouts, Keinanen. Keinanen scored an impressive 3-1 victory over Kasioumis in the Grand Final match, which forced a reset for the title. Under the tournament format, this occurs when the player coming from the winners bracket (Kasioumis) loses the first final, requiring a new series to determine the champion. However, Kasioumis drew on his experience in the tougher rematch, gave his opponent no chances in the reset, and sealed the championship with a dominant performance.
The Dynamics of 3-Check and Kasioumis' Mastery
The 3-Check format brings a different dynamic and level of excitement to traditional chess. Players must focus not only on delivering checkmate, but also on alternative winning conditions such as checking the opposing king three times or forcing a stalemate position. That leads to creative tactics, deep calculation, and strategies we are not used to seeing in standard chess. Kasioumis’ success in this format once again proved that he has mastered all the nuances of this special discipline and is one of its strongest practitioners.
FM Vasilios Kasioumis’ victory in the 2026 Chess.com 3-Check Championship is not only a personal achievement, but also a reflection of the growing popularity and level of competition in 3-Check chess. Coming after last year’s runner-up finish, this title marks an important turning point in Kasioumis’ career, while chess fans will continue to look ahead eagerly to new battles in this exciting format.