A09 Réti Opening: 1.Nf3 d5 2.c4 (1.Nf3 d5 2.c4 d4)

I remember vaguely experimenting with this line with the black pieces some years ago but I have no real feel to it and I can't remember what happened in those games. This game is part of a tournament called tedjj's mini-tournament XLIII. That tournament is going as badly as it can go for me, I had to resign one more game only a moment ago. Now it looks like that I will end the year in a loss, well at least on this site. The only game I have won in this tournament is the game you see below. I have added ten more puzzles today divided in to mate in one, two, three, four and five pages.

[Event "tedjj's mini-tournament XLIII"] [Site "http://gameknot.com/chess.pl?"] [Date "2014.12.23"] [Round "?"] [White "Vierjoki, Timo"] [Black "frericks"] [Result "1-0"] [ECO "A09"] [WhiteElo "1705"] [BlackElo "1625"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "57"] [EventDate "2014.??.??"] 1. Nf3 d5 2. c4 d4 {A09 Réti Opening: 1.Nf3 d5 2.c4 A09 Réti Opening: Advance Variation} 3. b3 Nc6 4. Bb2 e5 5. d3 Bb4+ {-0.55/28} (5... a5 $17 { -1.11/24}) 6. Nbd2 $15 Nge7 $146 {0.17/23} (6... a5 $17 {-1.16/26}) (6... Bg4 7. a3 Bxd2+ 8. Qxd2 f6 9. h3 Be6 10. e3 Nge7 11. Be2 O-O 12. O-O Qd7 13. exd4 Nxd4 14. Nxd4 exd4 15. Qf4 c5 16. Rfe1 Ng6 17. Qg3 b5 18. Bc1 Rfe8 19. Bh5 Bf5 20. Bd2 Rab8 21. Bf4 {Polivoda,A-Zinchenko,Y Dnepropetrovsk 2003 1/2-1/2}) 7. a3 $11 Bd6 {0.59/25} (7... Bxd2+ $11 {-0.16/26} 8. Qxd2 Bg4) 8. g3 {-0.42/26} ( 8. b4 $14 {0.59/25}) 8... Bf5 {1.04/24 [#]} (8... a5 $1 $15 {-0.42/26}) 9. Qc2 {0.00/26} ({White should play} 9. b4 $1 $16 {1.04/24}) 9... Qd7 $2 {2.87/23} ( 9... Ng6 $1 $11 {0.00/26 and Black has nothing to worry.}) 10. c5 $18 Nd5 11. cxd6 cxd6 12. Bg2 O-O {4.37/22} (12... Rc8 {2.89/25 was called for.} 13. O-O Nce7) 13. O-O Rac8 14. Rac1 Ncb4 $2 {5.10/23 [#]} (14... Nce7 {2.76/28}) 15. Qb1 ({Weaker is} 15. axb4 Rxc2 16. Rxc2 Nxb4 $14) 15... Na6 16. Rxc8 Rxc8 17. Rc1 Nc3 {4.77/25} (17... Rxc1+ {3.34/28 is a better defense.} 18. Qxc1 Ne7) 18. Bxc3 $1 Rxc3 19. Rxc3 dxc3 20. Nc4 f6 21. Qc2 d5 22. Ne3 d4 23. Nxf5 {White is clearly winning.} Qxf5 24. e3 Nc5 25. Ne1 Qe6 26. b4 Nb3 27. Bxb7 Nd2 28. Kg2 Qf5 29. exd4 {Accuracy: White = 48%, Black = 11%.} 1-0 [Event "Chessmaster 9000 Rated Game"] [Site "?"] [Date "2004.03.22"] [Round "?"] [White "Rick"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A09"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "134"] [EventDate "2004.??.??"] 1. Nf3 d5 2. c4 d4 {A09 Réti Opening: 1.Nf3 d5 2.c4 A09 Réti Opening: Advance Variation} 3. b4 Nf6 4. Qa4+ $146 (4. e3 dxe3 (4... c5 5. Bb2 dxe3 6. fxe3 cxb4 7. d4 Bf5 (7... e6 8. Bd3 Nc6 9. Nbd2 Be7 10. O-O O-O 11. Qc2 Qc7 12. Kh1 h6 13. e4 e5 14. d5 Nd4 15. Nxd4 exd4 16. Nf3 Bc5 17. Rae1 Ng4 18. Qd2 Re8 19. Re2 Ne5 20. Nxd4 b6 21. Re3 Bd7 22. Rg3 {Sprumont,O (2034)-Larochelle,M (2069) Laval 2017 1-0}) 8. Qa4+ Nbd7 9. Qxb4 e5 10. Qb3 Qa5+ 11. Bc3 Qc7 12. Be2 Ne4 13. O-O g6 14. Bb4 Bh6 15. Nc3 Nxc3 16. Qxc3 a5 17. Qa3 Bxe3+ 18. Qxe3 axb4 19. Nxe5 {Czarnota,P (2534)-Warakomski,T (2503) Polanica Zdroj 2013 0-1 (55)}) 5. fxe3 Nbd7 6. Bb2 g6 7. Be2 Bg7 8. O-O O-O 9. Qb3 b6 10. Ne5 Bb7 11. Bf3 Bxf3 12. Rxf3 Nxe5 13. Bxe5 Qd7 14. d4 c5 15. Nc3 cxb4 16. Qxb4 Rac8 17. Raf1 Qe6 18. Bxf6 exf6 {Stopa,J (2488)-Mozharov,M (2535) Kolkata 2013 0-1 (34)} ) (4. Bb2 c5 5. g3 (5. bxc5 Nc6 6. Qc2 e5 7. e3 Bxc5 8. exd4 exd4 9. a3 O-O 10. Bd3 Re8+ 11. Kf1 Bg4 12. h3 Bxf3 13. gxf3 Ne5 14. Kg2 Nxd3 15. Qxd3 Qb6 16. Bc1 Nh5 17. Qf5 Re6 18. d3 Rg6+ 19. Kf1 Qb3 {Ksenofontov,N (1683)-Talypov,I (1615) Cheliabinsk 2013 0-1}) 5... Nc6 6. bxc5 e5 7. Bg2 Bxc5 8. d3 O-O 9. O-O Bf5 10. Ba3 Nd7 11. Nfd2 Bxa3 12. Nxa3 Nc5 13. Rb1 Qe7 14. Qc1 Na4 15. Re1 Rab8 16. Nc2 Nc3 17. Rb2 Qd7 18. Nb1 Na4 {Jeran,B (2226)-Bontempi,P (2376) Split 2013 0-1 (40)}) 4... Qd7 5. Qxd7+ Bxd7 {1.00/23} (5... Nbxd7 $14 {0.53/26 was preferrable.} 6. Nxd4 e5) 6. Na3 {0.18/27} (6. Bb2 $16 {1.00/23}) 6... Nc6 7. Nb5 {-0.15/30} (7. Nc2 $14 {0.47/24}) 7... O-O-O {0.40/28} (7... Nxb4 $11 { -0.15/30} 8. Nbxd4 (8. Nxc7+ Kd8 $15) 8... e6) 8. Ba3 $2 {-2.92/24 [#]} (8. Nbxd4 $14 {0.40/28 keeps the upper hand.} Nxd4 9. Nxd4) 8... e5 $19 9. Ng5 Be6 ({Stronger than} 9... Bxb4 10. Nxf7 Ba5 11. Bc1 $11) ({Weaker is} 9... Nxb4 10. Bxb4 Bxb4 11. Rb1 $19) 10. Nxe6 fxe6 11. O-O-O $2 {-5.60/28} (11. Bb2 {-1.88/28 }) 11... Bxb4 $2 {-1.80/26 [#]} (11... Ne4 {-5.60/28} 12. Nxa7+ Nxa7) 12. Bxb4 {-2.81/28} (12. f3 {-1.80/26 might work better.}) 12... Nxb4 13. a3 $2 { -4.62/24} (13. f3 {-2.58/29}) 13... Nc6 14. d3 {-6.12/26} (14. a4 $142 { -4.24/28} Ne4 15. Re1) 14... a6 15. h4 axb5 16. cxb5 Na7 17. a4 Rhf8 18. b6 cxb6 19. g3 Kb8 20. Bg2 Nc6 21. Bxc6 bxc6 22. Kd2 Rd7 23. Rc1 Kb7 24. a5 bxa5 25. Rb1+ Ka6 26. Rhc1 Rc7 27. Ra1 Rb8 28. Rc5 Rb5 29. Rc2 Kb6 30. Rc4 c5 31. Kc1 Rb4 32. Rc2 Ra7 33. e4 a4 34. g4 Nxg4 35. Rd2 Nf6 36. Re2 a3 37. Rc2 Rba4 38. Rd2 Nd7 39. Rc2 Kc6 40. Rca2 Nb6 41. Kd1 c4 42. Rc2 Kc5 43. dxc4 Rxc4 44. f4 Rxc2 {Black mates.} 45. Kxc2 exf4 {Endgame KRN-KR} 46. Kd1 e5 47. Ke1 a2 48. h5 Nc4 49. Ke2 Ne3 50. h6 gxh6 51. Kd2 Ra3 52. Ke2 Nc2 53. Rc1 a1=Q 54. Rxa1 Rxa1 55. Kd2 Nb4 56. Ke2 Ra3 57. Kd1 d3 58. Kc1 Kd4 59. Kd2 Kxe4 60. Kc1 f3 61. Kb2 f2 $1 62. Kxa3 f1=Q 63. Ka4 d2 64. Kxb4 d1=Q 65. Ka5 Qb1 66. Ka4 Qfb5+ 67. Ka3 Q5b3# {Accuracy: White = 4%, Black = 21%.} (67... Q1b2# $142 {-#1/127}) 0-1 [Event "ICC 5 0"] [Site "Internet Chess Club"] [Date "2005.12.27"] [Round "?"] [White "xopowo"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A09"] [WhiteElo "1305"] [BlackElo "1427"] [Annotator "Tactical Analysis 2.10 (5s), TV"] [PlyCount "101"] [EventDate "2005.??.??"] 1. Nf3 d5 2. c4 d4 {A09 Réti Opening: 1.Nf3 d5 2.c4 A09 Réti Opening: Advance Variation} 3. b4 Nf6 4. Bb2 Nc6 $146 (4... c5 5. e3 dxe3 6. fxe3 cxb4 7. d4 e6 (7... g6 8. Qa4+ Nbd7 9. Qxb4 Bh6 10. Qb3 Qb6 11. Qxb6 Nxb6 12. Bc1 Be6 13. Ne5 O-O 14. Bd3 Ne8 15. Na3 f6 16. Nf3 Rc8 17. c5 Nd5 18. Nc2 f5 19. Bc4 Kg7 20. Ne5 Nec7 21. Bd2 Bg5 22. Bb3 {Ziegler,A (2404)-Jepson,C (2465) Lidköping 1999 0-1 (58)}) (7... Bf5 8. Be2 e6 9. O-O Be7 10. Nbd2 h6 11. Ne5 O-O 12. Bf3 Qc7 13. Qe2 Nc6 14. e4 Bh7 15. Nxc6 bxc6 16. e5 Nd7 17. d5 Bc5+ 18. Kh1 cxd5 19. cxd5 Rae8 20. d6 Qb8 21. Bc6 Rd8 22. Rac1 {Vrhovnik,D (2111) -Ljikar,T (1877) Topusko 2014 1-0 (36)}) 8. Bd3 Nc6 9. Nbd2 Be7 10. O-O O-O 11. Qc2 Qc7 12. Kh1 h6 13. e4 e5 14. d5 Nd4 15. Nxd4 exd4 16. Nf3 Bc5 17. Rae1 Ng4 18. Qd2 Re8 19. Re2 {Sprumont,O (2034)-Larochelle,M (2069) Laval 2017 1-0}) 5. Nxd4 Nxd4 6. Bxd4 $2 {-5.06/17} (6. e3 {-2.42/21} Nf5 7. Be2) 6... Qxd4 $19 7. Nc3 Qxc4 8. e3 {Black is clearly winning.} Qxb4 9. Be2 e6 10. O-O Bd6 11. Rb1 Qh4 {[#]} 12. g3 Qh3 13. Bf3 Rb8 14. Bg2 Qf5 15. d4 O-O 16. e4 Qa5 17. e5 Bxe5 {-2.85/22} (17... Qxc3 $142 {-6.31/21} 18. exf6 g6) 18. dxe5 Qxc3 19. exf6 Qxf6 20. Qa4 a6 21. Rfc1 Qe7 22. Qa5 b6 23. Qe5 Qd6 24. Qe2 $2 {-3.66/19} (24. Qxd6 $17 {-1.45/25} cxd6 25. Rc6) 24... Rd8 25. Rc2 $2 {-3.90/18} (25. Rc6 {-2.27/24 } Qe7 26. Rbc1) 25... Qd3 {-1.76/25} (25... c5 $142 {-3.90/18 ...b5 is the strong threat.} 26. Rcc1 Qc7) 26. Qxd3 Rxd3 27. Rxc7 Rd2 $2 {0.08/21} (27... g6 $19 {-2.06/19 Strongly threatening ...Rd2.} 28. a4 Rd7) 28. Rbc1 $2 {-2.27/19} (28. Rxb6 $1 $11 {0.08/21} Rd1+ (28... Rxb6 29. Rxc8+) 29. Bf1) 28... Rd8 29. f4 {-2.27/23} (29. Re7 $142 {-1.61/24}) 29... a5 30. Bf1 {-2.45/23} (30. Bc6 $142 {-1.99/25}) 30... Bb7 31. Bb5 Bd5 32. a4 g6 33. Kf2 Kg7 34. Ke3 {-2.49/21} (34. g4 $142 {-1.97/23}) 34... Kf6 35. R1c3 {-2.51/19} (35. g4 {-1.65/23 was called for.}) 35... Rd6 36. g4 Rb7 $2 {-0.09/27} (36... h6 $19 {-2.00/21 aiming for ...e5.} 37. h4 Rdd8 38. g5+ hxg5 39. hxg5+ Kg7) 37. g5+ {-1.50/25} ( 37. Rxb7 $1 $11 {-0.09/27} Bxb7 38. Rc7) 37... Kg7 $17 38. Rc8 h6 {-0.66/30} ( 38... Re7 $1 $17 {-1.29/21 Threatens to win with ...e5.} 39. R8c7 Rxc7 40. Rxc7 Rd8) 39. h4 {-1.25/25} (39. Re8 $15 {-0.66/30} hxg5 40. fxg5) 39... h5 {0.00/26 } (39... hxg5 $17 {-1.25/25} 40. hxg5 Re7) 40. Rc2 $2 {-1.87/23} (40. Re8 $1 $11 {0.00/26} f6 41. Rcc8) 40... Bb3 $2 {0.00/28} ({Black should try} 40... Re7 $1 $19 {-1.87/23 Hoping for ...e5.} 41. Rd2 f6) 41. R2c3 $1 $11 Bd1 $2 {3.04/26 } (41... Ba2 $11 {0.00/28 and Black has nothing to worry.}) 42. Re8 {[#] And now Rcc8 would win.} Bg4 $2 {#10/25} (42... f6 $18 {2.60/27} 43. Rcc8 fxg5) 43. Rcc8 {White mates.} f6 44. Rg8+ Kf7 45. Rcf8+ Ke7 46. Re8+ Kf7 47. Rgf8+ Kg7 48. Rg8+ Kh7 49. Rh8+ Kg7 50. Rhg8+ Kf7 51. Ref8+ {Accuracy: White = 44%, Black = 32%.} 1-0 [Event "Rated game, 5m + 0s"] [Site "Main Playing Hall"] [Date "2006.02.07"] [Round "?"] [White "GerMa"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A09"] [WhiteElo "1533"] [BlackElo "1624"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "46"] [EventDate "2006.10.09"] [SourceTitle "playchess.com"] 1. Nf3 d5 2. c4 d4 {A09 Réti Opening: 1.Nf3 d5 2.c4 A09 Réti Opening: Advance Variation} 3. b4 e6 4. a3 (4. Bb2 c5 5. g3 Nh6 6. Ne5 Qc7 7. Qa4+ Nd7 8. Nd3 b5 9. Qxb5 Bb7 10. Rg1 cxb4 11. Ne5 Rd8 12. Nxd7 Rxd7 13. Bxd4 a6 14. Qe5 Qxc4 15. Bb2 Be7 16. Qb8+ Rd8 17. Qxb7 Qc2 {0-1 (17) Spangenberg,H (2505) -Granda Zuniga,J (2600) Buenos Aires 1996}) 4... Nf6 $146 (4... c5 5. d3 (5. bxc5 Nc6 6. g3 Bxc5 7. Bg2 Nf6 8. d3 e5 9. Nbd2 O-O 10. O-O h6 11. Nb3 Bb6 12. Qc2 Re8 13. c5 Bc7 14. e3 dxe3 15. fxe3 Bf5 16. Ne1 Qd7 17. e4 Be6 18. Rxf6 gxf6 19. Bxh6 Bxb3 {Eberhardt,M (1763)-Rahls,P (2151) Buesum 2017 0-1}) (5. Qb3 Nc6 6. b5 Na5 7. Qc2 Nf6 8. g3 Bd6 9. Bg2 O-O 10. O-O e5 11. d3 Bg4 12. Nbd2 Re8 13. Re1 Qd7 14. Ng5 Rab8 15. Nge4 Nxe4 16. Nxe4 Be7 17. Bd2 b6 18. Bxa5 bxa5 19. Nd2 Qd6 {Vitz,H (1728)-Bonus,C (1470) Troisdorf 2002 1-0}) 5... cxb4 6. g3 Nc6 7. Bg2 Nf6 8. O-O bxa3 9. Bxa3 Bxa3 10. Rxa3 O-O 11. Nbd2 Qe7 12. Qa1 e5 13. Ng5 Bg4 14. Re1 h6 15. Nge4 Nxe4 16. Nxe4 Rfe8 17. c5 Qc7 18. Nd6 Rf8 19. Rb1 {Le Roux,Y (2058)-Colombi Gamrat,M (1850) Loire 2004 1-0 (44)}) 5. d3 c5 6. b5 {-0.79/25} (6. e3 $11 {0.00/26 remains equal.}) 6... a6 {-0.32/24} ( 6... h6 $17 {-0.79/25}) 7. g3 $2 {-1.84/24} (7. a4 $15 {-0.32/24}) 7... axb5 $19 8. cxb5 {Black is better.} Qa5+ {-1.08/27} (8... Bd7 $1 $19 {-2.34/25} 9. Qb3 Qa5+ 10. Nbd2 Qxb5) 9. Nbd2 {-1.93/24 [#]} (9. Bd2 $17 {-1.08/27 keeps fighting.} Qxb5 10. a4) 9... Qxb5 {-1.22/26} (9... Bd7 $1 $19 {-1.93/24} 10. Bg2 Bxb5) 10. Bg2 $17 Nc6 {-1.11/27} (10... Qa6 $19 {-1.76/25} 11. O-O Be7) 11. O-O {-1.84/26} (11. a4 $17 {-1.11/27} Qa6 12. Bb2) 11... Be7 {-0.93/26} (11... Qa6 $19 {-1.84/26} 12. a4 Be7) 12. Nc4 {-1.44/25 [#]} ({White should try} 12. a4 {-0.93/26} Qa6 13. Nc4) 12... O-O {-0.62/32} (12... Qa6 $1 $17 {-1.44/25} 13. a4 Bd7) 13. Rb1 $2 {-8.21/24} (13. a4 $15 {-0.62/32} Qa6 14. Bd2) 13... Qxb1 $19 {Black is clearly winning.} 14. Qd2 Qb5 15. Bb2 Na5 16. Nce5 Nd7 17. Rb1 Qa6 18. Ba1 Nxe5 19. Nxe5 Bd6 20. Nc4 Nxc4 21. dxc4 Qxc4 22. Bxb7 Bxb7 23. Rxb7 Rxa3 {Accuracy: White = 39%, Black = 41%.} 0-1