ECO code: A42
Modern Defense: Averbakh System
Moves: 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4
This opening is a variation of the Modern Defense where Black adopts a flexible, hypermodern setup, fianchettoing the dark-squared bishop with ...Bg7 and delaying the occupation of the center with pawns. The characteristic move ...d6 supports the bishop and prepares to challenge White's center later, without immediately committing to ...e5 or ...c5.
From White's perspective, the move 4.e4 is an assertive claim to the center, aiming to establish a strong pawn presence on d4 and e4. White plays an attacking and space-gaining strategy by controlling the center.
Black, by contrast, adopts a more defensive and hypermodern approach, planning to undermine and counterattack White's center from a distance rather than occupying it directly at the start.
Overall, this opening centers around a battle for control of the center: White takes a classical, direct approach by occupying it with pawns, while Black delays direct confrontation, focusing on piece pressure and counterplay.
This opening is defined by the position shown on the board below. The moves displayed are a typical sequence that leads to it, but different sequences can reach the same position and still carry the same opening name.
Practice puzzles and train your tactics with real positions from games that used the Modern Defense: Averbakh System, and sharpen your opening mastery.
Puzzle 1 of 19 - Move #6 white