Donald Byrne vs Robert James Fischer
Rosenwald Memorial Tournament, 1956 · result 0-1 · source: chess1/Stockfish 18 (depth 12)
Opening: Grünfeld Defense: Three Knights Variation, Hungarian Attack — this game followed that line's move order.
Donald Byrne faced Robert James Fischer in Rosenwald Memorial Tournament, 1956. Robert James Fischer won. The game lasted 41 moves. The opening was the Grünfeld Defense: Three Knights Variation, Hungarian Attack.
Black castled kingside on move 4; White did not castle. The first capture came on move 6.
The final position is checkmate: the losing king has no legal move out of check.
Alternative: Two roads at the very first move: Nf3 keeps it flexible, e4 was the other door at +0.5. Byrne chooses the flank development — and with it, the whole Grunfeld story that follows. Best was e4.
Inaccuracy: Nbd7?! is a small concession: the evaluation edges from +0.1 to +0.7. The kind of drift a young genius will punish for the rest of the afternoon.
Inaccuracy: Bg5?! wants the pin and loses the thread: from +0.4 the game tips to -0.1, the first time the teenager stands better on the scoreboard. White never sees the lead again.
Mistake: Bxb6 pockets the queen, and the bill only grows: from -2.2 to -3.9 as Black's initiative turns the board into open country. Qxc3 was the engine's quieter path — sometimes the best capture is the one that was not offered. Best was Qxc3.
Inaccuracy: Ra4?! is the winner easing off: from -5.0 the number relaxes to -4.0, a full point donated back. Even geniuses coast — the position had already done the work.
Inaccuracy: h3?! makes luft nobody asked for: from -4.3 the game slips to -5.1, and the kingside gets looser with every quiet move. White is playing not to lose; the position has other plans.
Brilliancy: Re1!! is Byrne's last composition: the rook walks into the open file, and when it is taken the queen dive with check is the point — pure swindle material at -6.0. The engine rates the initiative bought here as worth exactly what the scoreboard says. It is still the most memorable thing White does all game.
Inaccuracy: Nf3?! retreats into the fog: the advantage drifts from -5.8 to -6.5. The last piece that could fight back has been redeployed out of the fight.
Inaccuracy: b5?! is the mirror image of White's drift: from -6.6 the number softens to -5.8, Black donating back most of a point. Winning positions forgive; this one was starting to forgive a lot.
Brilliancy: Bc5+!! is the move the scoreboard refuses to like: -7.5 after the bishop lands with check, and yet this is the hand that delivers mate six moves later. Fischer has stopped counting material — the king is the only piece that matters now.
Inaccuracy: Ng3+?! checks because checks are available: from -7.2 the game relaxes to -6.6, a last twitch from the defending side. The mate is coming anyway — the route just gets one move longer.
Checkmate: The finish: Rc2# — the rook lands next to the king, protected by the light-squared bishop that has walked the whole game. At thirteen, Fischer has just dismantled one of America's leading grandmasters; the chess world would spend decades catching up.
Key moments
Alternative Nf3
Two roads at the very first move: Nf3 keeps it flexible, e4 was the other door at +0.5. Byrne chooses the flank development — and with it, the whole Grunfeld story that follows. Best was e4.
Inaccuracy Nbd7
Nbd7?! is a small concession: the evaluation edges from +0.1 to +0.7. The kind of drift a young genius will punish for the rest of the afternoon.
Inaccuracy Bg5
Bg5?! wants the pin and loses the thread: from +0.4 the game tips to -0.1, the first time the teenager stands better on the scoreboard. White never sees the lead again.
Mistake Bxb6
Bxb6 pockets the queen, and the bill only grows: from -2.2 to -3.9 as Black's initiative turns the board into open country. Qxc3 was the engine's quieter path — sometimes the best capture is the one that was not offered. It captures the queen on b6. White is up 8 points of material after the move. Best was Qxc3.
Inaccuracy Ra4
Ra4?! is the winner easing off: from -5.0 the number relaxes to -4.0, a full point donated back. Even geniuses coast — the position had already done the work.
Inaccuracy h3
h3?! makes luft nobody asked for: from -4.3 the game slips to -5.1, and the kingside gets looser with every quiet move. White is playing not to lose; the position has other plans. Black is up 3 points of material after the move.
Brilliancy Re1
Re1!! is Byrne's last composition: the rook walks into the open file, and when it is taken the queen dive with check is the point — pure swindle material at -6.0. The engine rates the initiative bought here as worth exactly what the scoreboard says. It is still the most memorable thing White does all game. Black is up 5 points of material after the move.
Inaccuracy Nf3
Nf3?! retreats into the fog: the advantage drifts from -5.8 to -6.5. The last piece that could fight back has been redeployed out of the fight. Black is up 5 points of material after the move.
Inaccuracy b5
b5?! is the mirror image of White's drift: from -6.6 the number softens to -5.8, Black donating back most of a point. Winning positions forgive; this one was starting to forgive a lot. Black is up 5 points of material after the move.
Brilliancy Bc5+
Bc5+!! is the move the scoreboard refuses to like: -7.5 after the bishop lands with check, and yet this is the hand that delivers mate six moves later. Fischer has stopped counting material — the king is the only piece that matters now. It gives check. Black is up 5 points of material after the move.
Inaccuracy Ng3+
Ng3+?! checks because checks are available: from -7.2 the game relaxes to -6.6, a last twitch from the defending side. The mate is coming anyway — the route just gets one move longer. It gives check. Black is up 5 points of material after the move.
Checkmate Rc2#
The finish: Rc2# — the rook lands next to the king, protected by the light-squared bishop that has walked the whole game. At thirteen, Fischer has just dismantled one of America's leading grandmasters; the chess world would spend decades catching up. It is checkmate. Black is up 5 points of material after the move.
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