ECO code: A37
Opening Name: English: Symmetrical, 5.Nf3 e5 6.O-O d6 7.d3 Nge7 8.a3
Moves: 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 e5 6. O-O d6 7. d3 Nge7 8. a3
Description: This is a highly symmetrical line of the English Opening, where both sides develop their knights to c3 and c6 and fianchetto their kingside bishops. White’s 8.a3 is a subtle, prophylactic move aimed at preventing ...Nb4 from Black, which could target White’s central and queenside squares, particularly the c2 pawn and the d3 pawn. It also prepares a possible b4 expansion to gain space on the queenside.
Characteristic of the move 8.a3: This move is primarily prophylactic and preparatory. It does not immediately challenge the center but supports future queenside expansion and restricts Black’s knight activity.
Attacking or Defensive: From White’s perspective, this position is more positional and flexible than outright attacking or defensive. White aims for a slow buildup, controlling key squares and preparing for space gains on the queenside. Black likewise maintains a solid and flexible setup. So, both sides are in a balanced stance, with neither side committing to a direct attack yet.
Center Control: This opening does not involve an immediate fight for the center with pawns. Instead, both sides maintain a solid pawn structure with pawns on c4/c5, d3/d6, and e5/e4 to exert influence indirectly. The center is controlled more by piece pressure and flexibility rather than direct pawn occupation or attacks.
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 English: Symmetrical, 5.Nf3 e5 6.O-O d6 7.d3 Nge7 8.a3, and sharpen your opening mastery.
Puzzle 1 of 2 - Move #42 white