English Opening: Agincourt Defense, Neo-Catalan Declined, Early b3 (5. b3 c5)
1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. b3 c5
The English Opening: Agincourt Defense, Neo-Catalan Declined, Early b3 is a chess opening classified as ECO A14, reached after 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. b3 c5. It is a line of the English Opening. White is to move.
This exact move order didn't appear in our sample of 12.6 million Lichess games: it's a rare line.
Engine evaluation: +0.07 (Stockfish, depth 33; best line 6. cxd5 exd5 7. d4 Ne4 8. Bb2 Bf6)
- ECO
- A14
- Moves
- 10 plies
- FEN
rnbqk2r/pp2bppp/4pn2/2pp4/2P5/1P3NP1/P2PPPBP/RNBQK2R w KQkq - 0 6- PGN
1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. b3 c5
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Master games
1 over-the-board game is classified under this line (White 0%, draw 100%, Black 0%). The strongest:
- FM Carlos Francisco Varela Velazquez (2269) – WFM Lily Jeanette Duarte Cramer (1949) 1/2-1/2 · 19th American Continental · 2026-06-08
Comes from
English Opening: Agincourt Defense, Neo-Catalan Declined, Early b3 (4… Be7 5. b3) 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. b3
More English Opening lines (all)
- English Opening A10
- English Opening: Achilles-Omega Gambit A10
- English Opening: Adorjan Defense A10
- English Opening: Anglo-Dutch Defense A10
- English Opening: Anglo-Dutch Defense, Hickmann Gambit A10
- English Opening: Anglo-Dutch Variation, Chabanon Gambit A10
- English Opening: Anglo-Dutch Variation, Ferenc Gambit A10
- English Opening: Anglo-Lithuanian Variation A10
- English Opening: Anglo-Scandinavian Defense A10
- English Opening: Anglo-Scandinavian Defense, Löhn Gambit A10
- English Opening: Anglo-Scandinavian Defense, Malvinas Variation A10
- English Opening: Anglo-Scandinavian Defense, Schulz Gambit A10
Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.