[Comment "auto-generated from "]
[Event "?"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Nimzo 4.f3 d5"]
[Black "main line 8.dxc5 Qa5"]
[Result "*"]
[ECO "E25"]
[Annotator "Paul Cumbers"]
[PlyCount "48"]
[EventDate "2017.??.??"]
[EventType "team"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8.
dxc5 Qa5 9. e4 Nf6 (9... Ne7 {In case you thought the more popular 9...Ne7 was
boring, check out Ingersol-Heinke, ICCF email 2013 (inspired by Anand-Wang Hao,
Wijk aan Zee 2011?):} 10. Be3 O-O 11. Qb3 Qc7 12. Bb5 Nec6 13. Ne2 Na5 14. Qb4
e5 15. Nd4 $5 Nbc6 16. Qb2 exd4 17. cxd4 f5 18. O-O Bd7 19. Be2 Rae8 20. d5 Qe5
21. Rab1 Qxb2 22. Rxb2 Ne5 23. Bd4 fxe4 24. fxe4 Rxf1+ 25. Bxf1 b6 26. cxb6
axb6 27. Rxb6 Nec4 28. Bxc4 Nxc4 29. Rb4 Nxa3 30. Rb7 Nc2 31. Bc3 Re7 32. e5
Rf7 33. e6 Bxe6 34. Rb8+ Rf8 35. Rxf8+ Kxf8 36. dxe6 g6 37. Bf6 Ke8 {��-��})
10. Be3 O-O 11. Qb3 (11. Kf2 {After the alternative 11.Kf2} Nfd7 12. Rb1 Rd8
13. Rb5 (13. Qb3 {Black players seem to know about} Qc7 14. Rd1 Rf8 $1 $11)
13... Ne5 $1 $11 {I'm surprised nobody has tested 13...Ne5}) 11... Nfd7 12. a4
Qc7 13. Qa3 b6 14. a5 bxc5 15. a6 $5 {White is trying hard.} (15. Nh3 {
Yakovich gives 15.Nh3} Ba6 16. Bxa6 Nxa6 17. Qa4 Ne5 {etc.} ({but misses} 17...
c4 $1 $11 {as seen in a handful of games more recently})) 15... c4 16. Qa5 Qxa5
17. Rxa5 Nc6 $1 18. Ra2 {From this position, the majority of games have ended
in draws.} Nde5 (18... Rb8 {is also annoying for White.}) 19. f4 Ng4 20. Bc1 (
20. Bd2 Rb8 21. Bxc4 e5 22. f5 {could lead to an attractive idea for Black:}
Nf6 23. Bd3 Rd8 24. Ke2 g6 25. fxg6 hxg6 26. Bg5 Rb3 $3 {, e.g.} 27. Bxf6 Rxd3
$1 28. Kxd3 Nb4+ 29. Kd2 Nxa2 {()}) 20... Nf6 (20... Rb8 21.
Nh3 Rb1 22. Kd2 $13 {might be more to White's liking (Wang Hao-Radjabov,
Stavanger 2013).}) 21. e5 Ne4 22. Ra3 (22. Bxc4 {White could go for BN v RP -}
Nxc3 23. Rc2 Ne4 24. Bd3 Nb4 25. Bxe4 Nxc2+ 26. Bxc2 Bxa6 {, but his lack of
development looks suspicious.}) 22... Bd7 {followed by activating the rooks,
meanwhile White is way behind on development. A key tactical idea for Black is}
23. Bxc4 Nb4 $1 24. cxb4 Rfc8 {() regaining the piece.} *