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All ECO codes · B · Semi-open games

B27 Modern Defense: Pterodactyl Variation

B27 Modern Defense: Pterodactyl Variation8a7b6c5d4e3f2g1h
1.e4 c5 2.♘f3 g6 3.d4 ♗g7 4.♘c3 ♕a5

B27 is the opening Modern Defense: Pterodactyl Variation of the volume B · Semi-open games: 8 half-moves to the position in the diagram, 23 variations in the ECO table.

What the games say

2,212 games in the collections, from 1855 to 2022. Mean rating of the games with ratings: 2406.

White wins 36 %, draws 32 %, Black wins 33 %

Most games: Kaposztas, Miklos (68), Bilek, Istvan (57), Bellon Lopez, Juan Manuel (41), Jakab, Attila (39), Forintos, Gyozo V (35)

All 23 variations

  1. Modern Defense: Pterodactyl Variation 1.e4 c5 2.♘f3 g6 3.d4 ♗g7 4.♘c3 ♕a5
  2. Pterodactyl Defense: Sicilian, Anhanguera 1.e4 c5 2.♘f3 g6 3.d4 ♗g7 4.♘c3 ♕a5 5.♗e3
  3. Pterodactyl Defense: Sicilian, Benoni Gambit 1.e4 c5 2.♘f3 g6 3.d4 ♗g7 4.♘c3 ♕a5 5.d5
  4. Pterodactyl Defense: Sicilian, Pteranodon 1.e4 c5 2.♘f3 g6 3.d4 ♗g7 4.dxc5 ♕a5+ 5.♘c3 ♗xc3+ 6.bxc3
  5. Pterodactyl Defense: Sicilian, Rhamphorhynchus 1.e4 c5 2.♘f3 g6 3.d4 ♗g7 4.dxc5 ♕a5+ 5.♘c3
  6. Pterodactyl Defense: Sicilian, Unpin 1.e4 c5 2.♘f3 g6 3.d4 ♗g7 4.♘c3 ♕a5 5.♗d2
  7. Pterodactyl Defense: Western, Pterodactyl 1.e4 c5 2.♘f3 g6 3.c3 ♗g7 4.d4 ♕a5
  8. Pterodactyl Defense: Western, Rhamphorhynchus 1.e4 c5 2.♘f3 g6 3.d4 ♗g7 4.dxc5 ♕a5+
  9. Sicilian Defense 1.e4 c5 2.♘f3
  10. Sicilian Defense: Acton Extension 1.e4 c5 2.♘f3 g6 3.c4 ♗h6
  11. Sicilian Defense: Brussels Gambit 1.e4 c5 2.♘f3 f5
  12. Sicilian Defense: Bücker Variation 1.e4 c5 2.♘f3 h6
  13. Sicilian Defense: Double-Dutch Gambit 1.e4 c5 2.♘f3 f5 3.exf5 ♘h6
  14. Sicilian Defense: Frederico Variation 1.e4 c5 2.♘f3 g6 3.d4 f5
  15. Sicilian Defense: Hyperaccelerated Dragon 1.e4 c5 2.♘f3 g6
  16. Sicilian Defense: Hyperaccelerated Dragon 1.e4 c5 2.♘f3 g6 3.d4
  17. Sicilian Defense: Hyperaccelerated Pterodactyl 1.e4 c5 2.♘f3 g6 3.d4 ♗g7
  18. Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation 1.e4 c5 2.♘f3 g6 3.d4 ♗g7 4.dxc5 ♕a5+ 5.♘c3 ♗xc3+ 6.bxc3 ♕xc3+
  19. Sicilian Defense: Jalalabad Variation 1.e4 c5 2.♘f3 e5
  20. Sicilian Defense: Katalimov Variation 1.e4 c5 2.♘f3 b6
  21. Sicilian Defense: Mongoose Variation 1.e4 c5 2.♘f3 ♕a5
  22. Sicilian Defense: Polish Gambit 1.e4 c5 2.♘f3 b5
  23. Sicilian Defense: Quinteros Variation 1.e4 c5 2.♘f3 ♕c7