The Modern begins with …g6 and a bishop to g7, and then stops. There is no knight on f6, no pawn committed in the centre, no indication of which break Black intends. White is invited to build whatever centre seems best, and Black will choose a response after seeing it. This is not indecision — it is the entire strategic content of the opening.
The Modern spans several ECO codes depending on move order, with the queen’s-pawn version at A41 and the king’s-pawn version classified alongside the Pirc in B06. Both reach the same family of structures, and most players treat them as one repertoire.
Origins
The Modern is the hypermodern idea in its most distilled form. Its intellectual roots are the same as the Pirc’s and the King’s Indian’s — Réti, Nimzowitsch and the 1920s argument that a pawn centre is a target as much as an asset — but it goes further than either by declining to develop the king’s knight early.
It emerged as a named system in the 1960s and 1970s, when a generation of players began treating opening flexibility as a weapon in itself rather than a symptom of vagueness. The point they established was that …Nf6, though natural, is a commitment: it invites e5 in many structures and tells White which setups to prepare. Withholding it costs nothing concrete and denies White information.
The most substantial modern treatment belongs to Tiger Hillarp Persson, whose books on the opening established a coherent aggressive interpretation for Black and gave the system a following it had previously lacked. Zurab Azmaiparashvili built much of a grandmaster career on it.
Flexibility as the plan
Every opening trades commitment for information. The Modern maximises the trade: Black makes the two moves that are useful in every structure — …g6 and …Bg7 — and defers everything else until White’s setup is visible.
The practical value is concrete. Against a broad centre with pawns on c4, d4 and e4, Black plays for …c5 or …e5 depending on which is better supported. Against a restrained setup, Black can transpose into a King’s Indian with …Nf6, into a Benoni-like structure with …c5, or stay in an independent Modern with an early …a6 and queenside expansion. Against an early e4, the game becomes a Pirc if Black chooses.
The cost is real and should not be minimised. Black is behind in development, has less space in every line, and is relying on the pawn centre being genuinely overextendable. If White simply develops soundly and declines to overreach, Black has a passive position with the burden of finding a break. The Modern punishes ambition and offers relatively little against restraint.
The bishop on g7 is the constant. It is the piece that makes every black plan work, it points at d4 and beyond for the entire game, and the single most reliable way for White to obtain an advantage is to trade it off — which is why several of White’s best systems are organised around exactly that.
Averbakh, Anti-Modern, and the rest
The Averbakh System, with e4 and Be2 and a solid centre, is White’s most natural and among the most testing. White simply builds the maximum sound centre and dares Black to attack it. Black’s counterplay comes from …c5 or a queenside advance with …a6 and …b5, and the resulting middlegames are rich and unbalanced.
The Anti-Modern setups, with Be3, Qd2 and f3, aim directly at the g7 bishop and the dark squares around Black’s king. This is the same scheme that appears as the 150 Attack against the Pirc, and it is popular for the same reasons: it is easy to learn, it is quick, and it forces Black to solve problems rather than manoeuvre.
The Kotov Variation and the various Neo-Modern treatments cover the lines where Black delays or omits …d6 in favour of an immediate queenside expansion — the sharpest interpretation, and the one most associated with the opening’s modern advocates.
Modern or Pirc
The distinction is a matter of move order, not of substance, and it is worth being precise. The Pirc commits to …Nf6 early; the Modern does not. Both aim for a fianchettoed bishop against a full white centre and both rely on the same breaks.
What the Modern gains by delaying is the avoidance of White’s most direct anti-Pirc tries, several of which depend on the knight already standing on f6. What it loses is time and control of e4: the knight on f6 is a useful piece, and leaving it at home means White’s e4–e5 advance is less easily challenged.
In practice most players who use one use both, choosing the move order according to what they want to avoid. A repertoire built on 1…g6 and 1…d6 covers both 1. e4 and 1. d4 with a single set of structures, which is the strongest practical argument for the whole approach.
How to study it
Learn the breaks and their preconditions, exactly as in the Pirc. For each of White’s main setups, work out whether the counterplay is …c5, …e5 or a queenside pawn advance, and what has to be in place first. The Modern is a system, and systems are learned as decision rules rather than as move lists.
Then study games in which Black loses. The Modern’s failure mode is specific and instructive: Black waits one move too long, White consolidates, and the position becomes permanently cramped with no break available. Recognising that moment before it arrives is the practical skill the opening demands.
Finally, be clear about the g7 bishop. Know which trades of that piece are acceptable and which lose the game strategically. Most of White’s best plans are aimed at it, and most of Black’s early flexibility exists to keep it.