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hikaru vs superchess02
winTable of Contents
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Game Snapshot
English Opening: Agincourt Defense
Crucial Positions
| move # | position | classification | ||
|---|---|---|---|---|
|
Move #:
54
Move:
Kd4
blunder
Endgame error lost winning advantage
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54 | Kd4 | blunder | Endgame error lost winning advantage |
|
WHAT HAPPENED Move Played: Kd4 White played 54.Kd4, moving the king from c4 to d4. The move looks natural, but it gives Black the immediate tempo to push the e‑pawn with 54...e3. The pawn advance creates a passed pawn that will queen in a few moves and also frees Black's king to approach. White also leaves the rook on f7 passive and allows Black's pawn on g5 to remain untouched. By stepping the king forward, White loses the initiative and lets Black dictate the pace of the ending. WHY IT'S BETTER Engine suggested: Rg7 The engine recommends 54.Rg7! instead of Kd4. Keeping the rook active on the seventh rank attacks the g‑pawn, threatens Rg2# and, most importantly, stops the e‑pawn from advancing with tempo. After 54.Rg7, Black cannot play ...e3 because the rook can capture on e3 or give perpetual checks, and White retains the winning material advantage. In contrast, Kd4 wastes a tempo and hands Black a dangerous passed pawn. The engine's line preserves the winning rook‑vs‑pawn endgame, while the blunder turns the position into a race that Black can win. KEY PRINCIPLE Maintain Piece Activity in the Endgame: When you have a material edge, keep your pieces (especially rooks) on active squares that restrict the opponent's pawn breaks. Unnecessary king moves can give the enemy pawn a tempo to become decisive. |
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Move #:
56
Move:
Rxe3+
best
Endgame found best move in complex position
|
56 | Rxe3+ | best | Endgame found best move in complex position |
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WHAT HAPPENED Move Played: Rxe3+ White captured the pawn on e3 with 56.Rxe3+, delivering check to the Black king on e2. The move removes Black's only passed pawn, wins material, and forces the king to move. After the forced 56...Kf2, White remains a rook up with a winning king‑and‑rook versus lone king endgame. WHY THIS MOVE IS STRONG The engine’s suggestion is exactly the move played: 56.Rxe3+. This capture is optimal because it eliminates Black's dangerous e‑pawn, creates a direct check, and forces the Black king into a passive position on f2. Any alternative, such as moving the king or the rook elsewhere, would allow the pawn to survive and give Black drawing chances. By removing the pawn and checking, White converts the material advantage into a clear win. KEY PRINCIPLE Eliminate Enemy Passed Pawns with Check: In rook endgames, always look for checks that also remove the opponent's key pawn. A checking capture both wins material and limits the enemy king’s activity. |
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Move #:
62
Move:
Rf1#
best
Delivered checkmate
|
62 | Rf1# | best | Delivered checkmate |
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WHAT HAPPENED Move Played: Rf1# White played 62.Rf1#, delivering checkmate. The rook on f5 slides to f1, cutting off the Black king's escape squares on g1 and h1, while the White king on g3 controls the remaining flight squares. Black has no legal move, so the game ends. WHY THIS MOVE IS STRONG The engine also lists 62.Rf1# as the only move, confirming that this is a forced mate. No alternative move can improve White's position because the game is already won; any other move would simply delay the inevitable. The move exploits the coordination of the rook and king to dominate all escape routes. KEY PRINCIPLE Coordinate King and Rook for Mate: In the final phase, use your king to control key squares while the rook delivers the mating net. Precise placement of both pieces can force checkmate even with minimal material. |
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Master Lens
What The GM Did Well By Phase
Opening
Middlegame
Endgame