magnuscarlsen vs Javokhir_Sindarov05

White played 25.Nxd6, the knight on b5 captured the pawn on d6. The capture wins a pawn and attacks Black's queen on e4 and bishop on e8, but it also leaves the white pawn on a4 undefended. Black immediately exploits the hanging a4 pawn with 25...Rxa4, winning material. Moreover, the knight on d6 becomes a tactical target: Black's rook on b4 also eyes the c4 pawn, and the queen on e4 is still defended by the bishop on e8, so White's threats are insufficient to compensate for the pawn loss.

Engine recommends 25.Re1 (or an equivalent rook move) instead of Nxd6. By playing Re1, White keeps the rook active, protects the a4 pawn indirectly (the rook on e1 can later defend the fourth rank), and avoids creating a vulnerable knight on d6. The move maintains material balance and limits Black's counter‑play on the a‑ and c‑files. In contrast, Nxd6 trades a pawn for a poorly defended piece and allows Black to seize the initiative with a simple pawn capture.

Never sacrifice a piece for a pawn when it creates a concrete weakness. Protect hanging material and avoid creating targets that your opponent can exploit with a single move.