In 2011, Gajewski won the
Cappelle-la-Grande Open. In 2012 he won the 14th
Open International de Sants, Hostafrancs i La Bordeta in
Barcelona edging out
Aleksandr Rakhmanov,
Emilio Cordova,
Kevin Spraggett and
Samuel Shankland on tiebreak score, after all players scored 8 points from 10 games. Gajewski won the
Polish Chess Championship in 2015. Gajewski played for the Polish team in the
Chess Olympiads of
2008 in
Dresden, where he played on the fourth board scoring 6½ points from 10 games, and
2014 in
Tromsø. He also took part in the
European Team Chess Championship in 2007, 2009, 2013 and 2015; Gajewski won the individual silver medal on board three in 2007. He was a
second to
Viswanathan Anand in the
World Chess Championship 2014, held in
Sochi, Russia, and has worked as his second during several events since then. A strong
opening theoretician, Gajewski is probably most known in the chess world by the
gambit move 10...d5!? in the
Ruy Lopez opening which he introduced in July 2007 during a tournament in
Pardubice. Since the pandemic, he has been working with some of India's sharpest chess players at Westbridge Anand Chess Academy (WACA). Since 2023, he has been working as
Gukesh Dommaraju's second, assisting him in winning the 2024 Candidates Tournament, where Gukesh became the youngest challenger in the history of the World Chess Championship. He was also Gukesh's main trainer when he won the 2024 FIDE World Chess Championship against
Ding Liren. ==References==