Level
4-Rook
Chess Diagram
[Event "Puzzle #286"][Date "2015.11.16"][Result "0-1"]1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4 Qc7 8.Qxg7 Rg8 9.Qxh7 cxd4 10.Kd1 Nbc6 11.Nf3 dxc3 12.Ng5 Nxe5 13.f4 Rxg5 14.fxg5 N5g6 15.h4 e5 16.h5 Nf8 17.Qg7 Bg4+ 18.Ke1 e4 19.Be3 O-O-O 20.Qxf7 Ne6 21.Qf2 {Stop here and analyse the position before moving on to replay the winning line} d4 22.Be2 dxe3 23.Qxe3 Bxe2 24.Qxe2 Rd2 25.Qxe4 Qg3+ 26.Kf1 Qf2#
Replay the game and then solve the following tasks:
a) When did the opening end and middle game begin? Explain
b) List all good moves for either side
c) List all bad moves for either side
Total available points for this puzzle is 25. The answers will be published next time together with puzzle #287.
Puzzle #285 solution:
Game Zivic - E Cosma, Belgrade 2013. The correct answers are:
a) Terry: The middle game began yet again when white moved 12.Bd3 ... since white has developed all his pieces except Rh1
b) White: none particularly; all were average
Black: 11... Nxc5, 13... f5, 19... fxg3, 20... g2, 21... Bg4, 24... Bc2+ and all following
c) White: 11.dxc5 ..., 13.Qf2 ...
Black: none
d) Coco and Cody: 25.Kxc2 Nd4+!! This stops the white King from escaping on b3 and beyond. White loses its Queen or gets checkmated
[Event "Puzzle #285"][Date "2015.11.01"][Result "0-1"]1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 a6 8. Nf3 c5 9. Qd2 Nc6 10. O-O-O O-O 11. dxc5 Nxc5 12. Bd3 b5 13. Qf2 f5 14. exf6 Nxd3+ 15. cxd3 Qxf6 16. g3 b4 17. Na4 e5 18. Kb1 exf4 19. Nb6 fxg3 20. Qc5 g2 21. Rhg1 Bg4 22. Nxa8 Bxf3 23. Nb6 Bxd1 24. Nd7 {Stop here and analyse the position before moving on} 24... Bc2+ 25. Kc1 (25. Kxc2 Nd4+ 26. Kd2 (26. Kc1 Qf1+ 27. Rxf1 gxf1=Q+ 28. Kd2 Qe2+ 29. Kc1 Rf1#) 26... Qf2+ 27. Kc1 Qxg1+ 28. Kd2 Qf2+ 29. Kd1 g1=Q#) 25... Qf1+ 26. Kxc2 Rf2+ 27. Kb3 Qxd3+ 28. Ka4 Qc2+ 29. Qxc2 Rxc2 30. Kb3 Nd4+ 31. Kxb4 Nf3
Correct solutions:
Benjamin - 25 points
Cody - 21 points
Coco - 17 points
Jalen - 14 points
Yakov - 12 points
Terry - 9 points
Ronald, Bradley - 8 points
Aaron - 7 points
Andrew - 5 points
Standings:
Cody - 118 points
Coco - 99 points
Benjamin - 76 points
Yakov - 74 points
Jalen - 69 points
Bradley - 68 points
Terry - 65 points
Deryk - 59 points
Aaron - 42 points
Andrew - 41 points
Ronald - 36 points
a) When did the opening end and middle game begin? Explain
b) List all good moves for either side
c) List all bad moves for either side
Total available points for this puzzle is 25. The answers will be published next time together with puzzle #287.
Puzzle #285 solution:
Game Zivic - E Cosma, Belgrade 2013. The correct answers are:
a) Terry: The middle game began yet again when white moved 12.Bd3 ... since white has developed all his pieces except Rh1
b) White: none particularly; all were average
Black: 11... Nxc5, 13... f5, 19... fxg3, 20... g2, 21... Bg4, 24... Bc2+ and all following
c) White: 11.dxc5 ..., 13.Qf2 ...
Black: none
d) Coco and Cody: 25.Kxc2 Nd4+!! This stops the white King from escaping on b3 and beyond. White loses its Queen or gets checkmated
[Event "Puzzle #285"][Date "2015.11.01"][Result "0-1"]1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 a6 8. Nf3 c5 9. Qd2 Nc6 10. O-O-O O-O 11. dxc5 Nxc5 12. Bd3 b5 13. Qf2 f5 14. exf6 Nxd3+ 15. cxd3 Qxf6 16. g3 b4 17. Na4 e5 18. Kb1 exf4 19. Nb6 fxg3 20. Qc5 g2 21. Rhg1 Bg4 22. Nxa8 Bxf3 23. Nb6 Bxd1 24. Nd7 {Stop here and analyse the position before moving on} 24... Bc2+ 25. Kc1 (25. Kxc2 Nd4+ 26. Kd2 (26. Kc1 Qf1+ 27. Rxf1 gxf1=Q+ 28. Kd2 Qe2+ 29. Kc1 Rf1#) 26... Qf2+ 27. Kc1 Qxg1+ 28. Kd2 Qf2+ 29. Kd1 g1=Q#) 25... Qf1+ 26. Kxc2 Rf2+ 27. Kb3 Qxd3+ 28. Ka4 Qc2+ 29. Qxc2 Rxc2 30. Kb3 Nd4+ 31. Kxb4 Nf3
Correct solutions:
Benjamin - 25 points
Cody - 21 points
Coco - 17 points
Jalen - 14 points
Yakov - 12 points
Terry - 9 points
Ronald, Bradley - 8 points
Aaron - 7 points
Andrew - 5 points
Standings:
Cody - 118 points
Coco - 99 points
Benjamin - 76 points
Yakov - 74 points
Jalen - 69 points
Bradley - 68 points
Terry - 65 points
Deryk - 59 points
Aaron - 42 points
Andrew - 41 points
Ronald - 36 points
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