Robuta

https://www.rediff.com/sports/report/tata-steel-masters-chess-gukesh-loses-to-bluebaum-erigaisi-held/20260128.htm
World champion D Gukesh resigned on his 37th turn against Germany's Matthias Bluebaum at Tata Steel Masters Chess.
tata steel masterschessgukeshlosesbluebaum
https://www.excelsior.com.mx/opinion/arturo-xicotencatl./bluebaum-modelo-estrategia-vence-keymer
bluebaumenmodeloestrategiakeymer
https://www.chess.com/games/view/18022744
Matthias Bluebaum (2660) vs Tom Rebentisch (2270) (2025). White won (1-0) in 60 moves. Click to review the game, move by move, with computer analysis.
matthias bluebaummaster chessgame comtomrebentisch