Owen Defense — opening family
8 catalogued lines · ECO B00–B00
The shortest catalogued line of the family runs 1. e4 b6 — the position below. The continuation chips count how many catalogued lines extend this head with each next move; explore the full tree below and play any branch against the engine.
Variations tree of the Owen Defense family
Click any move to jump to that position; switch branches at any point with the alternative moves. Test your knowledge plays the shown position against the engine.
Start
Main continuations
All 8 lines
| Name | ECO | Main line length |
|---|---|---|
| Owen Defense | B00 | 2 plies |
| Owen Defense: Guatemala Defense | B00 | 4 plies |
| Owen Defense: Naselwaus Gambit | B00 | 5 plies |
| Owen Defense: Smith Gambit | B00 | 5 plies |
| Owen Defense: Unicorn Variation | B00 | 6 plies |
| Owen Defense: Wind Gambit | B00 | 6 plies |
| Owen Defense: Hekili-Loa Gambit | B00 | 6 plies |
| Owen Defense: Matovinsky Gambit | B00 | 10 plies |