Westerberg, J.. – Mamedyarov, S..

2534 2021 · Checkmate — Black wins

Sicilian Alapin, 2021: Westerberg (2534) against Mamedyarov (2770), with the queens coming off on move 23 and the game hardening into a rook ending. Only one turning point is recorded: 48.Kh1, a missed chance that pushes the evaluation from −7.0 to −12.5 from White’s side. From there Black drives the h- and g-pawns forward unopposed and finishes with 54...g2 mate. The accuracy figures tell the rest: 96% of at least good moves for Black, 89% for White. The takeaway for club players is blunt — even in a difficult ending, a passive king move can turn stubborn defence into an immediate loss.