Polish Defense — opening family
2 catalogued lines · ECO A40–A40
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The shortest catalogued line of the family runs 1. d4 b5 — the position below. The continuation chips count how many catalogued lines extend this head with each next move; any branch can be explored on the interactive tree and played against the engine from there.
Main continuations
All 2 lines
| Name | ECO | Main line length |
|---|---|---|
| Polish Defense | A40 | 2 plies |
| Polish Defense: Spassky Gambit Accepted | A40 | 5 plies |