Polish Opening
25 named lines, ECO A00–A05. The main position arises after1. b4.
| Line | Games | White / draw / Black |
|---|---|---|
| Polish Opening A00 · 1. b4 | 58,348 | |
| Birmingham Gambit A00 · 1. b4 c5 | 996 | |
| Dutch Defense A00 · 1. b4 f5 | 609 | |
| Grigorian Variation A00 · 1. b4 Nc6 | 607 | |
| Karniewski Variation A00 · 1. b4 Nh6 | 11 | |
| Outflank Variation A00 · 1. b4 c6 | 2,384 | |
| Symmetrical Variation A00 · 1. b4 b5 | 691 | |
| Bugayev Attack A00 · 1. b4 e5 2. a3 | 1,041 | |
| Baltic Defense A00 · 1. b4 d5 2. Bb2 Bf5 | 1,342 | |
| Czech Defense A00 · 1. b4 e5 2. Bb2 d6 | 6,036 | |
| German Defense A00 · 1. b4 d5 2. Bb2 Qd6 | 137 | |
| King's Indian Variation A00 · 1. b4 Nf6 2. Bb2 g6 | 1,656 | |
| Wolferts Gambit A00 · 1. b4 e5 2. Bb2 c5 | 27 | |
| Bugayev Advance Variation A00 · 1. b4 e5 2. Bb2 f6 3. b5 | 881 | |
| King's Indian Variation, Schiffler Attack A00 · 1. b4 Nf6 2. Bb2 g6 3. e4 | 113 | |
| Myers Variation A00 · 1. b4 d5 2. Bb2 c6 3. a4 | 36 | |
| Outflank Variation, Schuehler Gambit A00 · 1. b4 c6 2. Bb2 a5 3. b5 | 7 | |
| Tartakower Gambit A00 · 1. b4 e5 2. Bb2 f6 3. e4 | 119 | |
| Zukertort System A05 · 1. Nf3 Nf6 2. b4 g6 3. Bb2 | 51 | |
| Queen's Indian Variation A00 · 1. b4 e6 2. Bb2 Nf6 3. b5 b6 | 135 | |
| Queenside Defense A00 · 1. b4 e6 2. Bb2 Nf6 3. b5 a6 | 167 | |
| Schiffler-Sokolsky Variation A00 · 1. b4 e6 2. Bb2 Nf6 3. b5 d5 4. e3 | 198 | |
| Schuehler Gambit A00 · 1. b4 c6 2. Bb2 a5 3. b5 cxb5 4. e4 | – | |
| King's Indian Variation, Sokolsky Attack A00 · 1. b4 Nf6 2. Bb2 g6 3. c4 Bg7 4. e3 d6 5. Nf3 O-O 6. d4 | – | |
| Rooks Swap Line A00 · 1. b4 e6 2. Bb2 Nf6 3. b5 a6 4. a4 axb5 5. axb5 Rxa1 6. Bxa1 | 80 |