ECO B00 · St. George Defense

St. George Defense: Polish Variation

1. e4 a6 2. d4 b5 3. Nf3 Bb7 4. Bd3 e6

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White to move. The arrow shows Stockfish’s best move.
Best move

5. O-O+0.82

White is clearly better. Stockfish 18, depth 18.

Analyze this position

In the St. George Defense: Polish Variation (B00), reached after 1. e4 a6 2. d4 b5 3. Nf3 Bb7 4. Bd3 e6, Stockfish 18 recommends 5. O-O for White. White is clearly better (+0.82).

Top engine moves

  1. +0.825. O-O c5 6. c3 Nf6 7. Re1 c4 8. Bc2 Be7 9. e5 Nd5
  2. +0.675. c3 Nf6 6. e5 Nd5 7. O-O c5 8. dxc5 Bxc5 9. Nbd2 Nc6
  3. +0.655. Nbd2 c5 6. c3 cxd4 7. cxd4 Be7 8. O-O Nf6 9. Re1 O-O

Frequently asked questions

What is the best move in the St. George Defense: Polish Variation?
After 1. e4 a6 2. d4 b5 3. Nf3 Bb7 4. Bd3 e6, Stockfish 18 at depth 18 recommends 5. O-O for White, continuing c5 6. c3 Nf6 7. Re1 c4 8. Bc2 Be7 9. e5 Nd5. White is clearly better (+0.82). The next best moves are 5. c3 (+0.67) and 5. Nbd2 (+0.65).
Is the St. George Defense: Polish Variation a good opening?
Stockfish rates the position at +0.82: White is clearly better. That is a large edge for an opening position, so check the engine lines before playing it from the other side.
What is the ECO code of the St. George Defense: Polish Variation?
B00. ECO codes classify chess openings from A00 to E99; B is the volume for semi-open games (other than the French).

Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).