Chess Opening Theory/1. d4/1...d5/2. c4/2...c6/3. Nf3/3...Nf6/4. Nc3/4...dxc4/5. a4/5...Bf5/6. e3/6...e6/7. Bxc4/7...Bb4/8. O-O/8...O-O/9. Qe2/9...Bg6

Dutch Variation D19 Dutch Variation Euwe Variation 9...Bg6 Black prevents e4 tactically. By retreating the bishop, 10. e4? is no longer played with tempo and in response Black plays 10...Bxc3! 11. bxc3 Nxe4 --. Instead, White should chase Black's light-squared bishop with /10. Ne5/. Some players have played 10. Rd1?! in this position, since this move is played anyways. But this is inaccurate, because 10...Nbd7 now prevents the knight from jumping to e5 and trading off the bishop. While chess engines evaluate 10. Rd1 as approximately equal, Black outperforms White in practice.https://www.chessgames.com/perl/explorer?node=824433&move=10.5&moves=d4.d5.c4.c6.Nf3.Nf6.Nc3.dxc4.a4.Bf5.e3.e6.Bxc4.Bb4.O-O.O-O.Qe2.Bg6.Rd1&nodes=10703.75972.75973.159605.159606.243841.416825.822523.822524.822525.822526.822527.237956.237957.822528.822529.822589.823230.824433 Theory table 10. Ne5 Nbd7 11. Nxg6 hxg6 12. Rd1 Qa5 + 10. Rd1 Nbd7 - References See also