Chess Opening Theory/1. d4/1...d5/2. c4/2...c6/3. Nf3/3...Nf6/4. Nc3/4...dxc4/5. a4/5...Bf5/6. Ne5/6...e6

Slav defence Wiesbaden variation D17 Central variation 6...e6 · Wiesbaden variation Black prepares to develop their dark-squared bishop to b4 where it stands uncontested thanks to White's move 5. a4. If White tries to recapture the c4 pawn immediately with 7. Nxc4?! Black can strike back 7...c5, putting pressure on White's centre and garnering an advantage in development. The only move that preserves White's advantage is /7. f3/, trying to play e4 on the next move. This threat cannot be stopped by Black, who has to play for piece activity, potentially sacrificing a piece to destroy White's centre. History The Wiesbaden variation is named after the 1929 World Championship match between Alekhine and Bogoljubov. Bogoljubov entered the line in games threehttps://www.chessgames.com/perl/chessgame?gid=1012596 and fivehttps://www.chessgames.com/perl/chessgame?gid=1012597 which took place in Wiesbaden. Theory table 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 e6 7. f3 Bb4 8. e4 Bxe4 9. fxe4 Nxe4 10. Bd2 Qxd4 11. Nxe4 Qxe4+ 12. Qe2 Bxd2+ 13. Kxd2 Qd5+ 14. Kc2 + References