Modern Defense

Black cedes the center on move one, treating White's d4 and e4 pawns as targets rather than achievements. The bishop on g7 bears down on the long diagonal, providing permanent counterplay against almost any central formation.

Because the g8 knight stays home initially, Black retains unusual flexibility: ...d6 for a Pirc-like structure, ...c6 and ...d5 in a Gurgenidze style, or ...c5 to reach Sicilian territory. The tradeoff is cramped space and the need to time the central break precisely.

The Modern sidesteps heavily analysed 1.e4 lines and leads to positions where understanding matters more than memorized theory. Opponents prepared against the Pirc or Sicilian frequently find themselves on unfamiliar ground.

The core decision each game is which central break to aim for: ...e5 leads to King's Indian-style positions, ...c5 pushes toward Sicilian structures, and ...b5 keeps all options open. Games regularly transpose into Pirc or Austrian Attack structures.

After 1.e4 g6 2.d4 Bg7, the Averbakh System (3.c4) is a critical test, building pawns on c4, d4, and e4. The Austrian Attack (3.Nc3 d6 4.f4) bids for kingside space, and Black can enter Pirc territory or challenge with ...a6 and ...b5.

Quieter systems with 4.Nf3 or 3.Nf3 with a later Bc4 are common at all levels, where Black's main resource is the Gurgenidze plan with ...c6 and ...d5. Sharp sidelines like the Monkey's Bum (2.Bc4) and the Norwegian Defense (2.d4 Nf6 3.e5 Nh5) remain popular.

The Modern is also known as the Robatsch Defense, after Austrian grandmaster Karl Robatsch, who brought 1...g6 into serious competitive play in the 1960s. Nigel Davies, Tiger Hillarp Persson, and Duncan Suttles established it as a fully respectable answer to 1.e4.

At the top level the Modern appears less often than the Pirc or Sicilian, but it remains a weapon of choice for taking opponents out of preparation. Magnus Carlsen famously used the Norwegian Defense variant at the 2010 Olympiad.