A00

Polish Opening

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Overview

Polish Opening is a top-level opening within the Flank Openings family, catalogued as ECO A00 — a starting point from which dozens of named sub-variations branch out.

The Flank Openings group covers flank openings — systems that delay the central pawn break and instead develop pieces and pawns on the wings.

It begins with 1 ply and takes 1. b4 to reach the canonical position.

The line has 16 documented children — with d5, Birmingham Gambit, Bugayev Advance Variation, and others being widely played.

Together the deeper variations number 25 across the full subtree.

Explore the position on the interactive board, study its real-world results from Lichess, and challenge the engine when you are ready.

ECO code: A00
Group: Flank Openings (A)
Plies: 1
Direct variations: 16
Total in subtree: 25

This overview is generated automatically from the opening's metadata. A more detailed, human-written description is on the way — and you can speed it up by suggesting one yourself.

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Variations (16)

Show all 25 sub-variations (full subtree)