Kasparov's 24.Rxd4 Rook Sacrifice vs Topalov — Wijk aan Zee 1999

The Position Before the Storm

The game began as a Pirc Defence, an opening Topalov chose to unbalance the position against the world's highest-rated player. Kasparov castled long, Topalov answered in kind, and by move 20 both kings sat on the queenside while the centre strained under tension. Kasparov, then at the peak of his powers and on his way to winning the Hoogovens tournament, had built pressure with his queen on f4 and rooks on the central files. Topalov, never a passive defender, counterattacked: his king stepped up to a7, his pawns rolled forward, and with 21...d4 and 23...Qd6 he appeared to have consolidated. The black queen guarded the critical squares, the c5 and d4 pawns formed a shield, and most players would have assessed the position as roughly balanced, dynamic, and double-edged. Then Kasparov saw something nobody else in the playing hall saw.

24.Rxd4: The Rook Goes In

Kasparov captured the d4 pawn with his rook, giving up the exchange and then, as the line unfolds, a full rook for almost nothing tangible. After 24...cxd4 came the true point: 25.Re7+, hurling the second rook into the attack. The rook cannot be taken, since 25...Qxe7 runs into 26.Qxd4+ and the queen falls to a double attack. So the king had to run: 25...Kb6 26.Qxd4+ Kxa5 27.b4+ Ka4 28.Qc3. With only a queen, rook and bishop against Topalov's nearly full army, Kasparov wove a mating net around a king stranded on a4, deep inside White's own queenside. This was not a standard sacrificial pattern from the textbooks of chess tactics. It was raw calculation: Kasparov later said he had seen the essential ideas all the way to the position around move 37 before committing the rook.

The Longest King Hunt in Elite Chess

What makes the combination extraordinary is its sheer length and the quality of the resistance. Topalov defended with great resourcefulness, returning material and grabbing pawns to keep his king alive: 28...Qxd5 29.Ra7 Bb7 30.Rxb7 Qc4 31.Qxf6 Kxa3 32.Qxa6+ Kxb4. Then came 33.c3+!, forcing 33...Kxc3, and the hunted king was driven down the open board: 34.Qa1+ Kd2 35.Qb2+ Kd1. From b8 to d1: the black king crossed virtually the entire board under fire, a journey with almost no parallel in serious master play. The finishing touches were two quiet moves of surgical precision, 36.Bf1! and 37.Rd7!, cutting off the escape and winning the queen by force. There were no wild checks at the end, just cold geometry. Honest analysis matters here: later study, including Kasparov's own, showed that 24...Kb6, declining the rook, was the best defence, and that improvements existed inside the accepted line. Over the board, against the clock, no one found them.

The Finish and the Aftermath

After 37...Rxd7 38.Bxc4 bxc4 39.Qxh8, Kasparov emerged with a decisive material advantage, and the remaining moves were a matter of technique. Topalov resigned on move 44. The reaction in the press room at Wijk aan Zee was immediate: grandmasters compared the game to the romantic masterpieces of the nineteenth century, the Immortal Game and the Evergreen, played in the era when Howard Staunton still dominated English chess. Kasparov himself called it one of the finest achievements of his career, and he went on to win the tournament. Topalov took the loss with grace, and the two men shared a long post-mortem. For students of chess strategy, the game is a reminder that even the most concrete combination grows out of positional pressure patiently accumulated over the preceding twenty moves.

The Greatest Game of the Twentieth Century

When the century closed, polls of players and publications set out to rank its finest games, and Kasparov against Topalov at Wijk aan Zee came first. It is now commonly known as Kasparov's Immortal, taking its place among the most celebrated famous chess games ever recorded. Its legacy runs in two directions. For the chess public, it became the definitive demonstration of Kasparov's calculating power, the quality that carried him through fifteen years as world number one and five successful defences in the World Chess Championships cycle. For professionals, it marked something subtler: played just two years after Kasparov's loss to Deep Blue, it proved that human imagination could still produce combinations that astonished the machines. Engines today confirm both the brilliance of the conception and the hidden defences, and the game remains a fixture in every serious study of attacking play, alongside the great king hunts of chess history. Among famous chess players, only a handful have a single move so instantly identified with their name.

Frequently Asked Questions

Q: Why is 24.Rxd4 considered one of the greatest moves in chess history?

Because of what it required and what it unleashed. The move gives up a full rook for a pawn, and its justification only becomes clear many moves later: a forced sequence that drags the black king from b8 all the way to d1, through the middle of a board still crowded with pieces. Kasparov had to calculate the main line roughly fifteen moves deep at the board, including quiet moves such as 36.Bf1 and 37.Rd7 that no ordinary tactical pattern suggests. Most celebrated sacrifices win material or force mate within a few moves. This one initiated a king hunt of a length and accuracy almost without precedent in over-the-board play, which is why it is routinely placed at the top of lists of the greatest moves ever played.

Q: Could Topalov have declined the rook sacrifice?

Yes, and this is the honest footnote to the brilliancy. Later analysis, including Kasparov's own, established that 24...Kb6, declining the rook, was Black's best practical defence, after which White keeps an attack but there is no clear forced win. Topalov, a fearless calculator himself, took the rook with 24...cxd4 after thinking for several minutes, believing his counterplay on the queenside would hold. Even after accepting, defensive resources were found in post-mortem analysis deep inside the combination, notably around move 26. None of this diminishes the move as a practical achievement: at the board, facing the clock, neither Topalov nor the watching grandmasters could refute it, and Kasparov's calculation proved sound where it mattered.

Q: What happened in the game after 24.Rxd4?

Topalov accepted with 24...cxd4, and Kasparov followed with 25.Re7+, throwing his second rook into the attack. The king could not take it: 25...Qxe7 loses to 26.Qxd4+ with a winning double attack. So the black king began to run: 25...Kb6 26.Qxd4+ Kxa5 27.b4+ Ka4 28.Qc3, weaving a mating net with minimal material. Topalov grabbed pawns and gave back material to survive, and the king fled down the board: 33.c3+ Kxc3 34.Qa1+ Kd2 35.Qb2+ Kd1. Then came the quiet killers, 36.Bf1 and 37.Rd7, winning the queen by force. Kasparov converted the resulting position cleanly, and Topalov resigned on move 44. The black king had travelled from b8 to d1, almost the full length of the board.

Q: Why was Kasparov vs Topalov 1999 voted the greatest game of the 20th century?

Because it combined depth, beauty and stakes in a way few games ever have. The sacrifice itself was spectacular, but what set the game apart was the length of the forced king hunt, more than fifteen moves of precise calculation against one of the world's best defenders, played in a top-class tournament rather than a casual or exhibition setting. The romantic masterpieces of the nineteenth century were often played against weak resistance; this one was played against an elite grandmaster who defended resourcefully. When publications and player polls ranked the finest games of the twentieth century, this game consistently came first, and it is now commonly known simply as Kasparov's Immortal, placing it alongside the most famous games in chess history.