The Four Knights Game begins by developing every knight before either bishop. After 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6, both sides have placed their knights on the squares the classical handbooks always recommended first. The bishops wait. The centre is unresolved. The game asks whether such complete symmetry can produce a real fight, or whether White’s small developmental edge will dissolve into equality.
The opening belongs to ECO C47 at its entrance and includes the Italian Variation, the Glek System, the Gunsberg Variation, the Halloween Gambit, and several other sub-lines. Its reputation has shifted from the most respected open game of the late nineteenth century to a backwater in the twentieth and a quiet revival in the twenty-first. The variation’s theoretical state today is honest: it offers White a small but defensible edge with accurate play, and it offers Black equality with the right preparation.
Происхождение
The Four Knights Game was the principal open game of the late nineteenth century in many leading tournaments. Lasker used it, Capablanca used it, and the line was treated as a sound and ambitious choice for both sides. Its appeal was its naturalness: developing knights before bishops was the standard advice of the period, and the Four Knights followed that advice more completely than any other opening.
The line’s status declined in the twentieth century. Two factors mattered. First, the development of the Ruy Lopez gave White a more aggressive option after 3.Bb5, and the Lopez offered better winning chances than the Four Knights’ more balanced positions. Second, Black’s defensive resources were better understood, and the line that had seemed slightly favourable for White was shown to be essentially equal. By the mid-twentieth century the Four Knights was rare at the highest level.
The opening’s modern revival began in the 1990s and accelerated in the 2000s, when several elite players began to use the line as a surprise weapon. The Belgian grandmaster Igor Glek developed a system in which White plays 4.g3, intending a kingside fianchetto and a different middlegame from the traditional Four Knights structures. Vladimir Kramnik used the Four Knights occasionally in his world-championship cycles, and several younger players have continued to keep the system relevant.
The symmetrical development
The Four Knights Game’s character comes from the symmetry. After 3…Nf6, both sides have a knight on the third rank and the king’s knight on the fourth. The pawns on e4 and e5 are mirrored. The next move is White’s choice, and that choice defines the rest of the game.
The most direct continuation is 4.Bb5, the Spanish-style move that resembles a Ruy Lopez with both sides’ knights already developed. The line is theoretically respectable and was the main historical path. Modern analysis shows that Black equalises with accurate play, but the resulting middlegames are rich enough that the line remains practical.
The Italian Variation, 4.Bc4, copies the Italian Game’s bishop development. The position becomes the Italian Four Knights, which has been studied less thoroughly than the regular Italian and offers White some practical winning chances.
The Glek System, 4.g3, is the modern alternative. White fianchettoes the king’s bishop and aims for a slower positional game. The system was named after Igor Glek, who used it as a primary weapon at grandmaster level in the 1990s and 2000s. The strategic argument is similar to the King’s Indian Attack: by avoiding the immediate central tension, White creates a position in which the middlegame plans are determined by piece activity rather than by pawn structure.
Main systems
The Spanish Four Knights (4.Bb5) most often leads to the line 4…Bb4 5.O-O O-O 6.d3, where both sides complete development before the centre is resolved. The position is balanced; White has slightly more space; Black has solid piece play. Many games end in draws, but the middlegame is far from sterile.
The Italian Four Knights (4.Bc4) can lead to sharp positions if Black plays 4…Nxe4, the so-called Two Knights-like complication. More commonly, 4…Bc5 leads to slow strategic play.
The Glek System (4.g3) usually continues 4…d5 5.exd5 Nxd5 6.Bg2, leading to positions where Black’s central pawn break has been exchanged but White’s bishop on g2 is strong. The middlegame turns on piece coordination and the slow improvement of squares.
The Halloween Gambit, 4.Nxe5, is a romantic-era sacrifice that is unsound at master level but practical in club play. White sacrifices a knight for two central pawns and the chance to drive Black’s pieces back. The line is theoretically losing for White but tactically dangerous for unprepared opposition.
Исторический контекст
The Four Knights Game was prominent in the chess of Lasker, Steinitz, and Capablanca. Lasker’s defensive technique in symmetrical openings was particularly suited to the Four Knights’ balanced positions. The line appeared in several world-championship matches of the early twentieth century, though it was rarely the decisive opening.
After the First World War, the Four Knights declined in elite practice. Capablanca occasionally returned to it; Alekhine treated it as a slightly inferior choice; Botvinnik and his contemporaries preferred the Ruy Lopez. The line’s reputation in the post-war period was that of a drawing weapon — not unsound, but unambitious.
The modern revival is primarily associated with the Glek System rather than the classical Spanish Four Knights. Glek himself, John Nunn, and several younger grandmasters used the 4.g3 idea to win games at the highest level, and the system became a respectable surprise weapon. The classical Spanish Four Knights remains rare at the elite level but is used occasionally — Kramnik played it, Carlsen has used it, and the line is part of the standard “deep but not main” repertoires of several top players.
Как изучать
For White, the most important decision is between the Spanish (4.Bb5), the Italian (4.Bc4), and the Glek (4.g3). The Spanish is the most theoretical; the Italian is the most strategic; the Glek is the most surprising. A repertoire player who already knows the Ruy Lopez may find the Spanish Four Knights an easy addition; a player who wants a distinctive system may prefer the Glek.
For Black, the standard response to 4.Bb5 is 4…Bb4, the symmetrical reply that leads to the classical Four Knights main line. Against 4.Bc4, the choice between 4…Bc5 and 4…Nxe4 defines the character of the game. Against the Glek 4.g3, Black’s main response is 4…d5, opening the centre while White has not yet developed the bishop.
Model games for the classical Four Knights should include several Lasker–Capablanca and Lasker–Tarrasch games from the early twentieth century. For the Glek System, the games of Glek himself from the 1990s and modern engine-era practice are the right references. The Halloween Gambit should be studied only as a historical curiosity or for blitz repertoire purposes.
The Four Knights Game does not promise an advantage. It promises a game played according to the oldest principles of classical chess — knights before bishops, centre before flank — and a middlegame where the player who understands the resulting structures slightly better usually wins. It is a quiet opening with a long memory.
— Editor’s desk, 23 May 2026