E12 Queen's Indian: Unusual White 4th moves, 4.a3, 4.Nc3 Bb7 5.a3 and 4.Nc3 Bb7 (1.d4 Nf6 2.c4 e6 3.Nc3 b6 4.Bg5 Be7 5.e3 Bb7 6.Nf3 O-O 7.Be2 d6)

This opening should have been in this blog earlier but as the source of openings I only used in the past did not recognize E20 Nimzo-Indian Defense #2, this did not happen before I started to check these openings from Chess.com as well. The game below was played in a team match called Happy New Year 2015 Romeo and Juliet vs Kasparov Chess Club !! I played on board 11 in this match for Romeo and Juliet and won both of my games against Jhopes on time. This is a match that is played on 62 boards and the current score in it is 89 - 33 in favor of Romeo and Juliet which means that we have clearly won the match already and only need to wait to get the official win after all the games in the match have finished. I have added one mate in one, one mate in two, one mate in three, one mate in four and one mate in six puzzle today.

[Event "Happy New Year 2015 Romeo and Juliet vs"] [Site "Chess.com"] [Date "2015.01.07"] [Round "?"] [White "Jhopes"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "E12"] [WhiteElo "1688"] [BlackElo "1892"] [Annotator "Tactical Analysis 2.10 (5s), TV"] [PlyCount "96"] [EventDate "2015.??.??"] 1. d4 (1. c4 b6 2. Nc3 Bb7 3. d4 Nf6 4. Bg5 e6 5. e3 {1/2-1/2 (33) Buhin,D (1851)-Lulic,I (2032) Sv Filip i Jakov 2008}) (1. Nf3 Nf6 {1/2-1/2 (21) Wilke, D-Felser,F Freudenstadt 1996}) 1... Nf6 2. c4 (2. Nf3 e6 3. Bg5 Be7 4. e3 b6 5. c4 Bb7 {0-1 (31) Kerski,B-Gottschlich,C (2225) Germany 1997}) 2... e6 3. Nc3 { E20 Nimzo-Indian Defense #2} (3. Nf3 b6 4. Bg5 (4. Nc3 Bb7 5. Bg5 {1/2-1/2 (21) Wilke,D-Felser,F Freudenstadt 1996}) 4... Bb7 (4... Be7 5. Nc3 Bb7 {1-0 (35) Trenchev,J-Ljangov,P (2197) Mizia 2002}) 5. e3 {1-0 (57) Kiss,G (1857)-Uzonyi, T (1797) Hungary 2012}) 3... b6 4. Bg5 Be7 5. e3 Bb7 6. Nf3 O-O (6... d6 7. Be2 {1-0 (57) Kiss,G (1857)-Uzonyi,T (1797) Hungary 2012}) 7. Be2 d6 {0.32/21 E12 Queen's Indian: Unusual White 4th moves, 4.a3, 4.Nc3 Bb7 5.a3 and 4.Nc3 Bb7} ( 7... h6 $11 {-0.28/22} 8. Bh4 d6) 8. O-O {-0.30/22} (8. Bf4 $14 {0.32/21}) 8... Nbd7 {0.50/20} (8... h6 $11 {-0.30/22} 9. Bh4 c5) 9. Qc2 {0.02/23} (9. Nd2 $14 {0.50/20}) 9... c5 $11 (9... h6 10. Bh4 Nh5 (10... c6 11. e4 e5 12. Rad1 Nh5 13. Bxe7 Qxe7 14. Nxe5 dxe5 15. Bxh5 exd4 16. Rxd4 Rad8 17. Rfd1 Ne5 18. Rxd8 Rxd8 19. Be2 Rxd1+ 20. Nxd1 c5 21. Nc3 Qh4 22. h3 Nc6 23. Qd3 Nd4 24. Bg4 Qg5 25. Qd1 {Kiss,G (1857)-Uzonyi,T (1797) Hungary 2012 1-0 (57)}) 11. Bxe7 Qxe7 12. Nd2 Ndf6 13. Bf3 Bxf3 14. Nxf3 e5 15. d5 Nh7 16. e4 g6 17. Ne1 f5 18. Nd3 f4 19. f3 Kh8 20. b4 g5 21. Rac1 Rg8 22. Ne2 g4 23. Qb2 gxf3 24. Rxf3 {Kerski, B-Gottschlich,C (2225) Germany 1997 0-1 (31)}) 10. Rfd1 {0.23/19} (10. e4 $16 { 0.92/19}) 10... h6 $146 (10... cxd4 11. Nxd4 a6 12. Bf3 (12. Rac1 Qc7 13. e4 Nc5 14. f3 Rac8 15. Be3 Qb8 16. Bf1 Bd8 17. Kh1 Ncd7 18. Qf2 Bc7 19. Qg1 Qa8 20. b4 Rfe8 21. Nb3 Rb8 22. Qf2 Red8 23. Rd2 Bc6 24. Nd5 Nxd5 25. cxd5 exd5 26. exd5 Bxd5 {Trenchev,J-Ljangov,P (2197) Mizia 2002 1-0 (35)}) 12... Qc7 13. Qe2 Rac8 14. Bxb7 Qxb7 15. Rac1 Rc5 16. Bh4 Rfc8 17. b3 d5 18. Na4 R5c7 19. Bxf6 Bxf6 20. Rc2 dxc4 21. bxc4 Ne5 22. Rdc1 Nc6 23. Nxc6 Qxc6 24. Nb2 Qe4 25. Qd3 { Buhin,D (1851)-Lulic,I (2032) Sv Filip i Jakov 2008 1/2-1/2 (33)}) (10... a6 11. e4 cxd4 12. Nxd4 Rc8 13. Rac1 Re8 14. Bd3 Qc7 15. b3 Nc5 16. Nf3 Qb8 17. b4 Nxd3 18. Qxd3 Qa8 19. Nd2 Red8 20. Na4 Qa7 21. Be3 Nd7 {1/2-1/2 (21) Wilke, D-Felser,F Freudenstadt 1996}) 11. Bh4 cxd4 {0.63/20} (11... d5 $11 {0.14/25 should be considered.}) 12. Nxd4 a6 13. Rac1 {0.21/22} (13. Bg3 $14 {0.68/22}) 13... Rc8 {0.76/20} (13... Qc7 $11 {0.21/22}) 14. Bd3 {0.00/23} (14. Bg3 $16 { 0.76/20}) 14... Nc5 {0.45/19} (14... Ng4 $11 {0.00/23} 15. Bxe7 Qxe7) 15. Bf1 { 0.00/25} (15. f3 $14 {0.45/19}) 15... Nfe4 16. Bxe7 Qxe7 17. b4 Nxc3 18. Qxc3 Ne4 19. Qb2 Rfd8 {0.50/22} (19... e5 $11 {0.06/24} 20. Nf5 Qe6) 20. f3 $14 Nf6 21. a3 {0.18/24} (21. e4 $14 {0.59/21 was preferrable.}) 21... Rc7 {0.66/20} ( 21... Rd7 $11 {0.18/24}) 22. Bd3 {-0.09/25} (22. a4 $1 $14 {0.66/20}) 22... Rdc8 23. Bf1 {-0.26/21} (23. Qd2 $142 {0.24/24}) 23... d5 $36 {0.24/23 Black is pushing.} (23... Nd7 $142 {-0.26/21}) 24. cxd5 $11 Nxd5 25. e4 {-0.65/23} ( 25. Rxc7 $11 {0.24/23} Rxc7 26. Rd3) 25... Ne3 $15 26. Re1 {-0.76/22} (26. Rxc7 $11 {-0.22/25} Rxc7 27. Re1 Nxf1 28. Rxf1) 26... Nxf1 $17 27. Kxf1 {-1.78/23} ( 27. Rxf1 $17 {-0.72/24 was called for.} Qg5 28. Rxc7 Rxc7 29. Re1) 27... Qf6 { -0.69/24} (27... Bxe4 $1 $19 {-1.78/23} 28. fxe4 (28. Rxe4 Rxc1+) 28... Qf6+ 29. Ke2 Rxc1 30. Rxc1 Rxc1 31. Qxc1 Qxd4) 28. Rxc7 $15 Rxc7 29. Qf2 {-1.73/22} (29. Qa1 $17 {-0.84/22 was necessary.}) 29... e5 $2 {-0.09/24 [#]} (29... Rc3 $19 {-1.73/22} 30. Rd1 Rxa3) 30. Nf5 $11 Bc8 31. Ne3 {Nd5 is the strong threat. } Be6 32. Rd1 b5 33. Qb2 Qg5 34. Nd5 {-0.65/21} (34. Qd2 $11 {0.00/25}) 34... Rd7 {0.00/26} (34... Rc4 $15 {-0.65/21}) 35. Qc3 Rd8 36. Qc7 Kh8 {[#] And now . ..Rc8 would win.} 37. Qb6 {-0.56/21} ({White should play} 37. Qc1 $11 {0.00/28} ) 37... Bc8 {0.00/29} (37... Rc8 $15 {-0.56/21} 38. Qf2 Rc1) 38. g3 {Threatens to win with h4.} Rd7 {0.89/23} (38... Bh3+ $11 {0.00/29 remains equal.} 39. Ke2 Rc8) 39. Qc6 {0.12/28} ({White should try} 39. Kf2 $16 {0.89/23}) 39... Qd8 { 0.59/24} (39... Rd8 $11 {0.12/28}) 40. Qc3 f6 41. Qc5 {-0.06/26} (41. Ke2 $14 { 0.37/22}) 41... Bb7 42. Ke2 Kg8 43. Ke3 {-0.70/21} (43. g4 $11 {0.28/26}) 43... Kf7 {0.00/25} (43... f5 $1 $15 {-0.70/21}) 44. Rd2 Ke6 45. f4 g6 46. fxe5 fxe5 47. Rc2 {-0.53/25} ({Better is} 47. Qc2 $11 {0.24/26}) 47... Bxd5 $15 48. exd5+ Rxd5 {Accuracy: White = 11%, Black = 18%.} 0-1