gurelediz vs hikaru

Black pushed 61...b4, advancing the b‑pawn from b5 to b4. This creates a new weakness on a5 and opens the c4 pawn to capture. White's threats of c4 and g6 become immediate: White can play 62.cxb4, winning a pawn, while Black's king on f6 remains exposed and the knight on a3 is still undefended.

The engine's top move is 61...Nc2, bringing the a3‑knight into the fight. From c2 the knight attacks the white pawn on e3 and covers the b4 square, preventing the pawn‑capture and keeping material balance. After the knight move Black also threatens ...Kc6, centralising the king. The pawn push b4 squanders a pawn and weakens the queenside, whereas the knight move maintains piece activity and safeguards the pawn structure.

Activate pieces before pushing pawns: In simplified endings, a well‑placed piece can stop opponent threats and preserve material; unnecessary pawn moves often create exploitable weaknesses.

Black advanced the pawn with 64...c2, moving the pawn from c3 to c2. This does not create a passed pawn fast enough and leaves the knight on b5 idle. White's only real threat is g6, but Black's king on f6 is still vulnerable, and the pawn on a5, b5, and c4 remain undefended. By playing c2, Black gives White time to improve the king or knight, while the engine’s line keeps the initiative.

The engine suggests 64...Nc7, bringing the knight to c7 where it attacks the white pawn on e6 and controls d5 and b5. After 65.Nd5+ White is forced to respond, and Black retains the more active piece while the pawn on c2 can later advance with better support. The pawn move c2 is a passive waiting move that lets White consolidate, whereas Nc7 creates immediate counter‑play.

Prioritise piece activity over pawn pushes: In endgames, a well‑placed piece can generate threats and protect pawns; moving a pawn without support often yields the opponent a tempo.

Black responded with 73...Kh7, moving the king from g8 to h7. This walk places the king on the same diagonal as White's queen on d5, allowing the immediate tactical shot 74.Qg8+, which wins material (the queen on c1) or leads to mate. The move also leaves the black queen on c1 undefended and the knight on b5 unprotected.

The engine recommends 73...Kg7. By staying on the g‑file, the king shields the g8 square from the white queen’s diagonal and keeps the queen on c1 defended by the king. After 74.Qg5+ White can only check, but Black retains material equality. Kh7 walks into a forced queen infiltration, whereas Kg7 maintains the defensive net.

Keep the king out of the opponent’s queen lines: In queen‑endgames, the king must not step onto squares that allow a direct queen check or capture; staying on a safe file preserves defence.

Black played 78...Kf8, moving the king from g7 to f8. This move abandons the defence of the critical g7‑square, where White’s queen on g5 is already eyeing a decisive infiltration. After Kf8, White can continue with 79.Qg6+, forcing the king further back and exposing Black’s queen on c1.

The engine’s best move is 78...Kh7. By moving to h7, the king directly protects g7, the key square under White’s threat, and stays close to the queen on c1. This defensive posture prevents the immediate Qg6+ ideas and keeps Black’s queen safe. Kf8, by contrast, walks into a forced series of checks that win material.

Guard critical squares with the king in queen endgames: When the opponent’s queen threatens a key entry point, the king must stay adjacent to that square; moving away creates decisive tactics.