Polish Opening A00
A — Flank openings · Family: Polish Opening
1. b4
The Polish Opening is catalogued under the ECO code A00. Its main line runs 1. b4.
After 1 half-moves the diagrammed position is reached and it is Black to move. Material is balanced.
This encyclopedia records 27 variations inside the “Polish Opening” family — compare the branching lines in the tree below.
Play through the moves on the board above, explore the variations tree below — click any move of any branch — then test yourself against the engine from the position you picked.
- Position after 1 half-moves — Black to move.
- Material is balanced.
- Family “Polish Opening” contains 27 recorded variation(s) here.
Variations tree of the Polish Opening 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.
Variations of this family
| Name | ECO | Main line length |
|---|---|---|
| Polish Opening, with d5 | A00 | 2 plies |
| Polish Opening, with d5 | A00 | 5 plies |
| Polish Opening: Baltic Defense | A00 | 4 plies |
| Polish Opening: Birmingham Gambit | A00 | 2 plies |
| Polish Opening: Bugayev Advance Variation | A00 | 5 plies |
| Polish Opening: Bugayev Attack | A00 | 3 plies |
| Polish Opening: Czech Defense | A00 | 4 plies |
| Polish Opening: Dutch Defense | A00 | 2 plies |
| Polish Opening: German Defense | A00 | 4 plies |
| Polish Opening: Grigorian Variation | A00 | 2 plies |
| Polish Opening: Karniewski Variation | A00 | 2 plies |
| Polish Opening: King's Indian Variation | A00 | 4 plies |
Related puzzles
Lichess tactics played in this opening — solve them right on the board:
Related openings
Nearby ECO codes in the A — Flank openings volume — compare the move orders: