Loading the page …

All ECO codes · A · Flank openings

A04 Colle System: Rhamphorhynchus Variation

A04 Colle System: Rhamphorhynchus Variation8a7b6c5d4e3f2g1h
1.♘f3 c5 2.e3 g6 3.d4 ♗g7 4.dxc5 ♕a5+

A04 is the opening Colle System: Rhamphorhynchus Variation of the volume A · Flank openings: 8 half-moves to the position in the diagram, 31 variations in the ECO table.

What the games say

5,833 games in the collections, from 1850 to 2022. Mean rating of the games with ratings: 2452.

White wins 34 %, draws 32 %, Black wins 34 %

Most games: Gutman, Lev (106), Alekseev,Evgeny (58), Vachier Lagrave,M (58), Khismatullin,D (41), Nepomniachtchi,I (37)

All 31 variations

  1. Colle System: Rhamphorhynchus Variation 1.♘f3 c5 2.e3 g6 3.d4 ♗g7 4.dxc5 ♕a5+
  2. Modern Defense: Semi-Averbakh Variation, Polish Variation 1.♘f3 c5 2.c4 g6 3.d4 ♗g7 4.e4 ♕b6
  3. Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation 1.♘f3 c5 2.c4 g6 3.d4 ♗g7 4.e4 ♕a5+
  4. Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted 1.♘f3 g6 2.d4 ♗g7 3.e4 d6 4.c4 c5 5.dxc5 ♕a5+
  5. Zukertort Defense: Kingside Variation 1.♘f3 ♘h6 2.d4 g6
  6. Zukertort Defense: Sicilian Knight Variation 1.♘f3 ♘a6 2.e4 c5
  7. Zukertort Opening 1.♘f3
  8. Zukertort Opening: Arctic Defense 1.♘f3 f6
  9. Zukertort Opening: Arctic Defense, Drunken Knight Variation 1.♘f3 f6 2.e4 ♘h6 3.d4 ♘f7
  10. Zukertort Opening: Basman Defense 1.♘f3 h6
  11. Zukertort Opening: Black Mustang Defense 1.♘f3 ♘c6
  12. Zukertort Opening: Drunken Cavalry Variation 1.♘f3 ♘a6 2.e4 ♘h6
  13. Zukertort Opening: Dutch Variation 1.♘f3 f5
  14. Zukertort Opening: Herrstrom Gambit 1.♘f3 g5
  15. Zukertort Opening: Kingside Fianchetto 1.♘f3 g6
  16. Zukertort Opening: Lisitsyn Gambit 1.♘f3 f5 2.e4
  17. Zukertort Opening: Lisitsyn Gambit Deferred 1.♘f3 f5 2.d3 ♘f6 3.e4
  18. Zukertort Opening: Pirc Invitation 1.♘f3 d6
  19. Zukertort Opening: Polish Defense 1.♘f3 b5
  20. Zukertort Opening: Queen's Gambit Invitation 1.♘f3 e6
  21. Zukertort Opening: Queenside Fianchetto Variation 1.♘f3 b6
  22. Zukertort Opening: Ross Gambit 1.♘f3 e5
  23. Zukertort Opening: Shabalov Gambit 1.♘f3 e6 2.c4 a6 3.♘c3 c5 4.g3 b5
  24. Zukertort Opening: Sicilian Invitation 1.♘f3 c5
  25. Zukertort Opening: Slav Invitation 1.♘f3 c6
  26. Zukertort Opening: Speelsmet Gambit 1.♘f3 c5 2.d4 cxd4 3.e3
  27. Zukertort Opening: St. George Defense 1.♘f3 a6
  28. Zukertort Opening: The Walrus 1.♘f3 e5 2.♘xe5 ♘c6 3.♘xc6 dxc6
  29. Zukertort Opening: Vos Gambit 1.♘f3 d6 2.d4 e5
  30. Zukertort Opening: Wade Defense 1.♘f3 d6 2.e4 ♗g4
  31. Zukertort Opening: Ware Defense 1.♘f3 a5