Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation
1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 Bxc3+ 6. bxc3 Qxc3+
7. Bd2+0.11
The position is roughly equal. Stockfish 18, depth 18.
Analyze this positionIn the Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation (B27), reached after 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 Bxc3+ 6. bxc3 Qxc3+, Stockfish 18 recommends 7. Bd2 for White. The position is roughly equal (+0.11).
Top engine moves
- +0.117. Bd2 Qxc5 8. Bd3 Nf6 9. O-O d6 10. Bh6 Ng4 11. Qd2 Nc6
- −2.107. Qd2 Qxa1 8. c3 Nf6 9. Bd3 Na6 10. O-O Nxc5 11. e5 Nd5
- −3.007. Nd2 Qxa1 8. Bd3 Qc3 9. O-O Qxc5 10. e5 Qxe5 11. Re1 Qc7
Frequently asked questions
What is the best move in the Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation?
After 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 Bxc3+ 6. bxc3 Qxc3+, Stockfish 18 at depth 18 recommends 7. Bd2 for White, continuing Qxc5 8. Bd3 Nf6 9. O-O d6 10. Bh6 Ng4 11. Qd2 Nc6. The position is roughly equal (+0.11). The next best moves are 7. Qd2 (−2.10) and 7. Nd2 (−3.00).
Is the Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation a good opening?
Stockfish rates the position at +0.11: the position is roughly equal. Evaluations this early in the game are small, so practical results depend far more on knowing the plans and typical structures than on the engine's number.
What is the ECO code of the Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation?
B27. ECO codes classify chess openings from A00 to E99; B is the volume for semi-open games (other than the French).
Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).