ECO code: C58
Opening Name: Two Knights Defense: Morphy, Polerio Variation, 6...c6
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6
Description: This line arises in the aggressive Two Knights Defense where Black challenges White’s early initiative. After White’s check with 6.Bb5+, Black responds with 6...c6, a characteristic pawn thrust aiming to block the check and simultaneously prepare to challenge White’s strong bishop on b5. This move is also intended to support Black’s knight on a5 and to build a solid pawn structure on the queenside.
Characteristic of 6...c6: The move 6...c6 is a thematic defensive resource in this variation. It both blocks the check and prepares to undermine White’s center and bishop placement. It also aims to maintain material balance and reduce White’s attacking chances.
Attacking or Defensive: From Black’s perspective, 6...c6 is primarily a defensive move, designed to blunt White’s immediate threats and consolidate position. For White, this variation remains aggressive, as White tries to exploit Black’s somewhat cramped position and open lines for an attack, particularly focusing on Black’s king and central control.
Center Control: This opening does involve fighting for the center—both sides contest the central squares actively. White’s early d5 pawn push and Black’s pawn moves like ...d5 and ...c6 reflect a struggle for central dominance. However, the variation’s main theme revolves around tactical play around the center and kingside, rather than quiet positional buildup.
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 Two Knights: Morphy, Polerio, 6...c6, and sharpen your opening mastery.
Puzzle 1 of 21 - Move #9 white