Complex Puzzle

[Nordlandia]

Code: Select all

8/3pp1p1/4B3/1N1Pp3/2k5/5p1p/4prpr/4Kbnq w - - 0 1

[pgn][Event "3 Prize tp21#081 @2 {m}"]
[Site "?"]
[Date "1959.??.??"]
[Round "?"]
[White "Korolkov V"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "8/3pp1p1/4B3/1N1Pp3/2k5/5p1p/4prpr/4Kbnq w - - 0 1"]
[PlyCount "141"]
[EventDate "1959.??.??"]

1. d6+ dxe6 2. Na3+ Kb4 3. d7 (3. dxe7 $1 Kxa3 4. e8=Q Kb4 5. Qc6) 3... Kxa3 4.
d8=Q Kb4 5. Qc7 Kb3 6. Qc5 Kb2 7. Qc4 e4 8. Qc6 Kb3 9. Qc1 Kb4 10. Qc2 Kb5 11.
Qc3 Kb6 12. Qc4 Kb7 13. Qc5 Ka6 14. Qb4 e5 15. Qb2 Ka5 16. Qb3 Ka6 17. Qb4 e3
18. Qb2 Ka5 19. Qb3 Ka6 20. Qb4 e4 21. Qb2 Ka5 22. Qb3 Ka6 23. Qb4 g6 24. Qb2
Ka5 25. Qb3 Ka6 26. Qb4 g5 27. Qb2 Ka5 28. Qb3 Ka6 29. Qb4 g4 30. Qb2 Ka5 31.
Qb3 Ka6 32. Qb4 g3 33. Qb2 Ka5 34. Qb3 Ka6 35. Qb4 e6 36. Qc5 Kb7 37. Qd6 Kc8
38. Qe7 Kb8 39. Qd7 Ka8 40. Qc7 e5 41. Qc6+ Ka7 42. Qb5 Ka8 43. Qa4+ Kb7 44.
Qa5 Kb8 45. Qa6 Kc7 46. Qb5 Kc8 47. Qb6 Kd7 48. Qc5 Kd8 49. Qc6 Ke7 50. Qd5 Ke8
51. Qd6 Kf7 52. Qd7+ $1 Kf6 53. Qe8 Kg7 54. Qe7+ Kh8 55. Qd8+ Kg7 56. Qe8 Kf6
57. Qd7 Kg6 58. Qe7 Kh6 59. Qf7 Kg5 60. Qe6 Kf4 61. Qf6+ Kg4 62. Qxe5 Kh4 63.
Qg7 Kh5 64. Qxg3 Kh6 65. Qg8 Kh5 66. Qg7 Kh4 67. Qe7+ Kh5 68. Qf6 Kg4 69. Qe5
Kh4 70. Qf5 Kg3 71. Qg5# *

[/pgn]

Code: Select all

[Event "3 Prize tp21#081 @2 {m}"]
[Site "?"]
[Date "1959.??.??"]
[Round "?"]
[White "Korolkov V"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "8/3pp1p1/4B3/1N1Pp3/2k5/5p1p/4prpr/4Kbnq w - - 0 1"]
[PlyCount "141"]
[EventDate "1959.??.??"]

1. d6+ dxe6 2. Na3+ Kb4 3. d7 (3. dxe7 $1 Kxa3 4. e8=Q Kb4 5. Qc6) 3... Kxa3 4.
d8=Q Kb4 5. Qc7 Kb3 6. Qc5 Kb2 7. Qc4 e4 8. Qc6 Kb3 9. Qc1 Kb4 10. Qc2 Kb5 11.
Qc3 Kb6 12. Qc4 Kb7 13. Qc5 Ka6 14. Qb4 e5 15. Qb2 Ka5 16. Qb3 Ka6 17. Qb4 e3
18. Qb2 Ka5 19. Qb3 Ka6 20. Qb4 e4 21. Qb2 Ka5 22. Qb3 Ka6 23. Qb4 g6 24. Qb2
Ka5 25. Qb3 Ka6 26. Qb4 g5 27. Qb2 Ka5 28. Qb3 Ka6 29. Qb4 g4 30. Qb2 Ka5 31.
Qb3 Ka6 32. Qb4 g3 33. Qb2 Ka5 34. Qb3 Ka6 35. Qb4 e6 36. Qc5 Kb7 37. Qd6 Kc8
38. Qe7 Kb8 39. Qd7 Ka8 40. Qc7 e5 41. Qc6+ Ka7 42. Qb5 Ka8 43. Qa4+ Kb7 44.
Qa5 Kb8 45. Qa6 Kc7 46. Qb5 Kc8 47. Qb6 Kd7 48. Qc5 Kd8 49. Qc6 Ke7 50. Qd5 Ke8
51. Qd6 Kf7 52. Qd7+ $1 Kf6 53. Qe8 Kg7 54. Qe7+ Kh8 55. Qd8+ Kg7 56. Qe8 Kf6
57. Qd7 Kg6 58. Qe7 Kh6 59. Qf7 Kg5 60. Qe6 Kf4 61. Qf6+ Kg4 62. Qxe5 Kh4 63.
Qg7 Kh5 64. Qxg3 Kh6 65. Qg8 Kh5 66. Qg7 Kh4 67. Qe7+ Kh5 68. Qf6 Kg4 69. Qe5
Kh4 70. Qf5 Kg3 71. Qg5# *

[Nordlandia]

Cook | Lomonosov Tablebases
[pgn][Event "3/6 Prize Gaprindashvili-50 JT Lelo {m}"]
[Site "?"]
[Date "1991.??.??"]
[Round "?"]
[White "Bazlov Y"]
[Black "Draw"]
[Result "*"]
[SetUp "1"]
[FEN "8/R7/8/3n3N/NR4n1/B2p4/2r5/3K3k w - - 0 1"]
[PlyCount "152"]
[EventDate "1991.??.??"]

1. Ng3+ Kg2 2. Rd4 Nde3+ 3. Ke1 Ne5 4. Rf7 Kxg3 5. Nc3 Rxc3 6. Rxd3 Rxd3 7. Ke2
Nd1 8. Rg7+ Kf4 9. Bb4 Nb2 10. Rc7 Re3+ 11. Kd2 Nbc4+ 12. Kc2 Rg3 13. Bc3 Ne3+
14. Kb2 Nd3+ 15. Kb3 Nf5 16. Rc4+ Ke3 17. Rc8 Ke4 18. Re8+ Kd5 19. Rd8+ Kc6 20.
Rc8+ Kd7 21. Rf8 Rf3 22. Bb4 Nc5+ 23. Kb2 Ne4 24. Ba3 Ke6 25. Re8+ Kd5 26. Rd8+
Kc4 27. Rc8+ Kd3 28. Bc5 Rf1 29. Rc7 Nc3 30. Rd7+ Kc4 31. Ba7 Nb5 32. Rf7 Kb4
33. Bb8 Rf2+ 34. Kc1 Kc3 35. Be5+ Kd3 36. Rd7+ Ke4 37. Rd2 Rf3 38. Bh8 Nbd6 39.
Kc2 Ne3+ 40. Kb1 Ndf5 41. Rd7 Nd5 42. Ra7 Rf2 43. Ra5 Rg2 44. Bb2 Rg8 45. Ra3
Nb6 46. Rh3 Nc4 47. Bf6 Rf8 48. Bc3 Nfe3 49. Ka2 Rb8 50. Bg7 Rb6 51. Rh6 Rb7
52. Bh8 Kd3 53. Rh3 Rb6 54. Rh4 Rb4 55. Bg7 Nd5 56. Rh3+ Kc2 57. Rh2+ Nd2 58.
Ka3 Rb7 59. Bd4 Kd3 60. Bh8 Nc4+ 61. Ka2 Nf4 62. Bf6 Ne2 63. Ka1 Kd2 64. Rg2
Rb6 65. Bd4 Rb3 66. Bf6 Kd1 67. Rh2 Ra3+ 68. Kb1 Nd2+ 69. Kb2 Rb3+ 70. Ka1 Kc2
71. Bb2 Nc3 72. Rg2 Rb6 73. Rxd2+ Kxd2 74. Bc1+ Kc2 75. Bb2 Ra6+ 76. Ba3 Rxa3#
*

[/pgn]

Code: Select all

[Event "3/6 Prize Gaprindashvili-50 JT Lelo {m}"]
[Site "?"]
[Date "1991.??.??"]
[Round "?"]
[White "Bazlov Y"]
[Black "Draw"]
[Result "*"]
[SetUp "1"]
[FEN "8/R7/8/3n3N/NR4n1/B2p4/2r5/3K3k w - - 0 1"]
[PlyCount "152"]
[EventDate "1991.??.??"]

1. Ng3+ Kg2 2. Rd4 Nde3+ 3. Ke1 Ne5 4. Rf7 Kxg3 5. Nc3 Rxc3 6. Rxd3 Rxd3 7. Ke2
Nd1 8. Rg7+ Kf4 9. Bb4 Nb2 10. Rc7 Re3+ 11. Kd2 Nbc4+ 12. Kc2 Rg3 13. Bc3 Ne3+
14. Kb2 Nd3+ 15. Kb3 Nf5 16. Rc4+ Ke3 17. Rc8 Ke4 18. Re8+ Kd5 19. Rd8+ Kc6 20.
Rc8+ Kd7 21. Rf8 Rf3 22. Bb4 Nc5+ 23. Kb2 Ne4 24. Ba3 Ke6 25. Re8+ Kd5 26. Rd8+
Kc4 27. Rc8+ Kd3 28. Bc5 Rf1 29. Rc7 Nc3 30. Rd7+ Kc4 31. Ba7 Nb5 32. Rf7 Kb4
33. Bb8 Rf2+ 34. Kc1 Kc3 35. Be5+ Kd3 36. Rd7+ Ke4 37. Rd2 Rf3 38. Bh8 Nbd6 39.
Kc2 Ne3+ 40. Kb1 Ndf5 41. Rd7 Nd5 42. Ra7 Rf2 43. Ra5 Rg2 44. Bb2 Rg8 45. Ra3
Nb6 46. Rh3 Nc4 47. Bf6 Rf8 48. Bc3 Nfe3 49. Ka2 Rb8 50. Bg7 Rb6 51. Rh6 Rb7
52. Bh8 Kd3 53. Rh3 Rb6 54. Rh4 Rb4 55. Bg7 Nd5 56. Rh3+ Kc2 57. Rh2+ Nd2 58.
Ka3 Rb7 59. Bd4 Kd3 60. Bh8 Nc4+ 61. Ka2 Nf4 62. Bf6 Ne2 63. Ka1 Kd2 64. Rg2
Rb6 65. Bd4 Rb3 66. Bf6 Kd1 67. Rh2 Ra3+ 68. Kb1 Nd2+ 69. Kb2 Rb3+ 70. Ka1 Kc2
71. Bb2 Nc3 72. Rg2 Rb6 73. Rxd2+ Kxd2 74. Bc1+ Kc2 75. Bb2 Ra6+ 76. Ba3 Rxa3#
*

---------------------------
Cook | Lomonosov Tablebases

Code: Select all

bB1k4/5K2/8/3P4/1R6/4N3/6p1/2n4r w - - 0 1

Code: Select all

[Event "4/5 Prize ts30#30 {m}"]
[Site "?"]
[Date "1992.??.??"]
[Round "?"]
[White "Gurgenidze D"]
[Black "Draw"]
[Result "*"]
[SetUp "1"]
[FEN "bB1k4/5K2/8/3P4/1R6/4N3/6p1/2n4r w - - 0 1"]
[PlyCount "19"]
[EventDate "1992.??.??"]

1. Bh2 $1 (1. Nxg2 $2 Bxd5+ 2. Kf8 Bxg2 3. Rb1 $1 Be4 $1 4. Ra1 Rh8+ 5. Kg7
Rh7+ 6. Kf6 Nd3) (1. Nxg2 Bxd5+ 2. Kf6 {-0.76/29 Komodo 10 64-bit}) 1... Rxh2
2. Nxg2 Bxd5+ (2... Rxg2 3. Rb8+) 3. Kf6 Bxg2 (3... Rxg2 4. Rd4) 4. Rb2 $1 Rh6+
5. Kg7 $1 (5. Kg5 $2 Rh7) 5... Rh2 6. Kf6 $1 Ke8 (6... Nd3 7. Rd2) 7. Rb8+ Kd7
8. Rb2 $1 Kd8 (8... Kd6 9. Rd2+ Kc5 10. Rc2+) 9. Rd2+ Ke8 10. Rb2 $1 *

[Nordlandia]

2...h1=B!
[pgn][Event ".c Problem#332"]
[Site "?"]
[Date "1976.??.??"]
[Round "?"]
[White "Lukyanov=V"]
[Black "(=0061.42g7e8)"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "2b1k3/2PpP1K1/3P4/5P2/1N6/b7/7p/8 w - - 0 1"]
[PlyCount "18"]
[EventDate "1976.??.??"]

{Problem/9 EG#09881} 1. Nd5 $1 Bb2+ 2. Kg8 $1 h1=B $1 (2... h1=Q 3. Nf6+ Bxf6)
3. Ne3 $1 Be5 4. f6 Bxf6 5. Nf5 Bd5+ 6. Kh7 Be4 7. Kg8 Bd5+ 8. Kh7 Be4 9. Kg8
Bxf5 1/2-1/2

[/pgn]

Code: Select all

[Event ".c Problem#332"]
[Site "?"]
[Date "1976.??.??"]
[Round "?"]
[White "Lukyanov=V"]
[Black "(=0061.42g7e8)"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "2b1k3/2PpP1K1/3P4/5P2/1N6/b7/7p/8 w - - 0 1"]
[PlyCount "18"]
[EventDate "1976.??.??"]

{Problem/9 EG#09881} 1. Nd5 $1 Bb2+ 2. Kg8 $1 h1=B $1 (2... h1=Q 3. Nf6+ Bxf6)
3. Ne3 $1 Be5 4. f6 Bxf6 5. Nf5 Bd5+ 6. Kh7 Be4 7. Kg8 Bd5+ 8. Kh7 Be4 9. Kg8
Bxf5 1/2-1/2

[Nordlandia]

[pgn][Event "1 Prize, Zadachy i Etiudy {m}"]
[Site "?"]
[Date "2010.??.??"]
[Round "?"]
[White "Zakharov S"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "r5N1/2QPbkpp/3p3P/7p/7n/pPpp4/R5pr/K1n2b2 w - - 0 1"]
[PlyCount "35"]
[EventDate "2010.??.??"]

1. d8=N+ $1 (1. d8=Q $2 Nxb3+ 2. Kb1 c2+) (1. Rf2+ $2 Kg6) 1... Kxg8 2. Qc4+
Kh8 3. Nf7+ Kg8 4. Nxd6+ Kh8 5. Nf7+ Kg8 6. Ne5+ Kh8 7. Rf2 Nxb3+ (7... d2 8.
hxg7+ Kxg7 9. Rf7+ $18) 8. Qxb3 g1=Q 9. Nf7+ Kg8 10. Nd8+ Kh8 11. Rf8+ Bxf8 12.
Nf7+ Kg8 13. Ng5+ Kh8 14. hxg7+ Bxg7 (14... Kxg7 15. Qf7+ Kh6 16. Qf6+ Ng6 17.
Nf7#) 15. Nf7+ Kg8 16. Nh6+ Kh8 17. Qg8+ Rxg8 18. Nf7# *

[/pgn]

Code: Select all

[Event "1 Prize, Zadachy i Etiudy {m}"]
[Site "?"]
[Date "2010.??.??"]
[Round "?"]
[White "Zakharov S"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "r5N1/2QPbkpp/3p3P/7p/7n/pPpp4/R5pr/K1n2b2 w - - 0 1"]
[PlyCount "35"]
[EventDate "2010.??.??"]

1. d8=N+ $1 (1. d8=Q $2 Nxb3+ 2. Kb1 c2+) (1. Rf2+ $2 Kg6) 1... Kxg8 2. Qc4+
Kh8 3. Nf7+ Kg8 4. Nxd6+ Kh8 5. Nf7+ Kg8 6. Ne5+ Kh8 7. Rf2 Nxb3+ (7... d2 8.
hxg7+ Kxg7 9. Rf7+ $18) 8. Qxb3 g1=Q 9. Nf7+ Kg8 10. Nd8+ Kh8 11. Rf8+ Bxf8 12.
Nf7+ Kg8 13. Ng5+ Kh8 14. hxg7+ Bxg7 (14... Kxg7 15. Qf7+ Kh6 16. Qf6+ Ng6 17.
Nf7#) 15. Nf7+ Kg8 16. Nh6+ Kh8 17. Qg8+ Rxg8 18. Nf7# *

[Nordlandia]

[pgn][Event "4 Commendation Avni-50 JT EG {m}"]
[Site "?"]
[Date "2005.??.??"]
[Round "?"]
[White "Stavrietsky A"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "1b6/4p2p/RB2B1pP/4p3/1k2Kp1q/5p1P/P3N3/8 w - - 0 1"]
[PlyCount "22"]
[EventDate "2005.??.??"]

1. Ba5+ $6 {Interesting sideline.} (1. Bd7 $18 fxe2 (1... fxe2 2. Ba5+ {
5.70/19 Houdini 3 Pro x64}) 2. Ba5+ Kc4 3. Rc6+ Kb5 4. Be1 Qh5 5. Rxg6+ Kc5 6.
Rc6+ Kb5 7. a4+ Kxa4 8. Rc3+ Kb4 9. Be8 Qxe8 10. Rc8+ Kb3 11. Rxe8) 1... Kb5 2.
Ra8 Bc7 3. Bxc7 Qe1 4. Bd7+ Kc5 5. Ra5+ Qxa5 6. Bxa5 f2 7. Kxe5 f1=Q 8. Nc3 Qg2
(8... Qg2 {-2.70/30 Stockfish 290117 64 BMI2}) 9. Ne4+ Kc4 10. a4 f3 (10...
Qb2+ 11. Kxf4 Kd5 12. Kf3 Qb7 13. Bb5 Qa8 14. Bd2 Qf8+ 15. Ke3 Qxh6+ 16. Kf2
Qxh3 17. Nc3+ Ke5 18. Ne2 {-2.68/25 Stockfish 8 64}) 11. Bb5+ Kb3 *

[/pgn]

Code: Select all

[Event "4 Commendation Avni-50 JT EG {m}"]
[Site "?"]
[Date "2005.??.??"]
[Round "?"]
[White "Stavrietsky A"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "1b6/4p2p/RB2B1pP/4p3/1k2Kp1q/5p1P/P3N3/8 w - - 0 1"]
[PlyCount "22"]
[EventDate "2005.??.??"]

1. Ba5+ $6 {Interesting sideline.} (1. Bd7 $18 fxe2 (1... fxe2 2. Ba5+ {
5.70/19 Houdini 3 Pro x64}) 2. Ba5+ Kc4 3. Rc6+ Kb5 4. Be1 Qh5 5. Rxg6+ Kc5 6.
Rc6+ Kb5 7. a4+ Kxa4 8. Rc3+ Kb4 9. Be8 Qxe8 10. Rc8+ Kb3 11. Rxe8) 1... Kb5 2.
Ra8 Bc7 3. Bxc7 Qe1 4. Bd7+ Kc5 5. Ra5+ Qxa5 6. Bxa5 f2 7. Kxe5 f1=Q 8. Nc3 Qg2
(8... Qg2 {-2.70/30 Stockfish 290117 64 BMI2}) 9. Ne4+ Kc4 10. a4 f3 (10...
Qb2+ 11. Kxf4 Kd5 12. Kf3 Qb7 13. Bb5 Qa8 14. Bd2 Qf8+ 15. Ke3 Qxh6+ 16. Kf2
Qxh3 17. Nc3+ Ke5 18. Ne2 {-2.68/25 Stockfish 8 64}) 11. Bb5+ Kb3 *

In particular, this imbalance occurs [d]8/4p2p/6p1/1B2k3/P7/7q/3BNK2/8 b - - 0 18

[Nordlandia]

Code: Select all

b7/2p2p1r/kPBp3r/2Bp4/K5P1/P2P4/6P1/8 w - - 0 1

[pgn][Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "b7/2p2p1r/kPBp3r/2Bp4/K5P1/P2P4/6P1/8 w - - 0 1"]
[PlyCount "19"]

{[#]} 1. b7 Rh8 2. Bg1 Rh1 3. Bd4 Rf1 4. g3 Rf3 5. bxa8=Q+ Rxa8 6. Bxa8 Rxd3 7.
Bf6 Kb6 8. Bd8 Rxg3 9. Bxd5 Rxg4+ 10. Kb3 *

[/pgn]

Vedict: possible draw?

[d]3B4/2p2p2/1k1p4/3B4/6r1/PK6/8/8 b - - 0 10

[Nordlandia]

[pgn][Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "5kb1/p2K1p2/2p4p/B4PpP/2pQP1P1/p7/1q6/8 w - - 0 0"]
[PlyCount "3"]

1. Qc5+ (1. Qh8 Qxh8 2. Bb4+ Kg7 3. f6+ Kh7 4. Ke7 Qg7 {Cook!} 5. fxg7 Kxg7 6.
Bc3+ f6) 1... Kg7 2. e5 $18 *

[/pgn]

[Nordlandia]

Code: Select all

5K2/8/6p1/R1N3k1/2B3Pq/6b1/8/8 w - - 0 0

[Nordlandia]

[pgn][Event "Ded. Jan Rusinek"]
[Site "?"]
[Date "2002.??.??"]
[Round "?"]
[White "Costeff"]
[Black "Die Schwalbe"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "R3R1rq/p1kpp1bb/1p1p2Bp/3n2pN/KP4P1/3PPp2/P4P2/8 w - - 0 1"]
[PlyCount "42"]
[EventDate "2002.??.??"]

1. Rac8+ Kb7 2. Rb8+ Kc6 3. b5+ (3. Rbc8+ Nc7 4. b5+ Kd5 5. Bf7+ Ne6) 3... Kc5
4. Rbc8+ Nc7 5. Rxc7+ (5. Bf7 d5 6. Bxg8 Kd6 7. Bxh7 (7. Bf7 Nxe8 8. Rxe8 Bf8)
7... Qxh7 8. Rxc7 Kxc7 9. Rxe7 Qxd3) 5... Kd5 6. Bf7+ e6 (6... Ke5 7. Rxe7#) 7.
Bxg8 (7. Bxe6+ dxe6 8. Rxg8 Qxg8 9. Rxg7 Qxg7 10. Nxg7 Bxd3) 7... Bxg8 {
White is significantly behind in material but black's queen lacks mobility.
White can narrow the material imbalance with the natural 8.Rcc8 or 8.R:d7.} 8.
Rec8 $3 (8. Rxd7 $2 Ba1 9. Rf8 (9. e4+ Kd4 10. Rxd6+ Kc3 11. d4 Kd2) 9... Qb2
10. Nf6+ Qxf6 11. Rxf6 Bxf6 12. Rxa7 h5 13. gxh5 g4 14. Rc7 g3 15. fxg3 f2 16.
Rc1 Bg5) (8. Rcc8 Qh7 9. Re7 Qxd3 10. Rxg7 Ke5 11. Rgxg8 Qe2) 8... Ba1 $1 (8...
Qh7 9. Rxd7 Qxd3 10. Rxd6+ Kxd6 11. Rd8+ Ke7 12. Rxd3 Bh7 13. e4 Bxe4 14. Re3
Bc2+ 15. Kb4 Bd4 16. Rxf3 Bd1 17. Rd3 Bc5+ 18. Kc3 Bxg4 19. Ng3 Bxf2 20. Ne4
Bg1 21. Rg3 Bf5 22. Rxg1 Bxe4 23. Kd4 Bd5 24. Ke5 Bxa2 25. Ra1 Bc4 26. Rxa7+
Kf8 27. Rh7 Bxb5 28. Rxh6 Bc4 29. Rg6) (8... e5 9. Rxd7) (8... Ke5 9. Rxd7 $18)
9. Rc1 $1 (9. Rc2 $2 Qh7 10. d4 Qg6 11. Rd2 Bf7 12. Ng3 Bxd4 13. Rxd4+ Ke5 14.
Rd1 d5 15. a3 d6 16. Rc3 Be8 17. Kb4 Qh7 18. a4 a6 19. bxa6 Qa7 20. Kb3 Qxa6
21. Rd4 Qa5 22. Rc1 b5 23. axb5 Bxb5 24. Rb1 Bc4+ 25. Kc2 Qa2+ 26. Rb2 Qa4+ 27.
Kb1 Qa5 28. Kc2 Qe1 29. Rd2 Be2 30. Kb3 Qxf2 31. Nxe2 fxe2 32. Rxe2 Qf3) 9...
Qb2 (9... Ke5 $2 10. Rxa1 d5 11. d4+ Kd6 12. Rac1 Ke7 (12... Qh7 13. Nf6 Qd3
14. R8c7) 13. R1c7 Qh7 14. Rxg8 Qxg8 15. Rxd7+ Kxd7 16. Nf6+ Ke7 17. Nxg8+ Kf7
18. Nxh6+ Kg7 19. Kb4 Kxh6 20. Kc3 Kg6 21. Kd3 Kf6 22. e4) 10. R8c2 $1 {
White completes his own Bristol.} (10. R1c2 $2 Qb1 11. d4 e5 12. Nf6+ Ke6 13.
Nxg8 exd4 $19) 10... Qh8 (10... Qe5 $2 11. d4 Bxd4 (11... Qh8 12. Rc8 $18) 12.
Rd2) 11. Rc8 $1 (11. d4 Bxd4 12. Rd2 Bh7 13. Rxd4+ Ke5 14. Ng3 Qa8 $19) 11...
Bg7 {Black compl etes the return Bristol and now threatens 12..Qh7 followed by
Bf7. The alternatives fail as follows:} (11... Bb2 12. R1c2) (11... Bd4 12.
R1c4 Bxe3 (12... Bc5 $2 13. Rf8 $18) 13. fxe3 Qa1 14. Rd4+ Ke5 15. Re4+ Kd5 16.
Rd4+ $11) (11... Be5 12. R1c4) (11... Qh7 12. Rxa1 Qxd3 13. Nf6+ Ke5 14. Nxd7+
Kd5 15. Nf6+ $11) 12. R1c7 $3 {White too must complete the Bristol.} (12. Rd8
$2 Qh7 13. Rxd7 (13. e4+ Kd4 14. Rxd7 Kxd3 15. Ng3 (15. Re1 Bd4 16. Rd1+ Kxe4
17. Rxh7 Bxh7 18. Rd2 Bg6 19. Ng3+ Ke5 20. Kb3 Bc5)) 13... Qxd3 14. Rxg7 Ke5
15. Rxg8 Qd2 16. Rgc8 Qxa2+ 17. Kb4 Qb2+ 18. Ka4 Qxf2 $19) (12. Re8 $2 Qh7 13.
Re7 Qxd3 14. Rxg7 Ke5 15. Rxg8 Qd2 16. Rgc8 Qxa2+ 17. Kb4 Qb2+ 18. Ka4 Qxf2 19.
R8c2 Qxe3 $19) 12... Ba1 $1 13. Rc1 $1 Qb2 14. R8c2 $1 Qh8 15. Rc8 $1 Bg7 $1
16. R1c7 $3 Qh7 {0} 17. Rxd7 {-0.81/37 3} Qxd3 18. Rxd6+ Kxd6 19. Rd8+ Ke7 20.
Rxd3 Bh7 21. Rb3 Be5 1/2-1/2

[/pgn]

Code: Select all

[Event "Ded. Jan Rusinek"]
[Site "?"]
[Date "2002.??.??"]
[Round "?"]
[White "Costeff"]
[Black "Die Schwalbe"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "R3R1rq/p1kpp1bb/1p1p2Bp/3n2pN/KP4P1/3PPp2/P4P2/8 w - - 0 1"]
[PlyCount "42"]
[EventDate "2002.??.??"]

1. Rac8+ Kb7 2. Rb8+ Kc6 3. b5+ (3. Rbc8+ Nc7 4. b5+ Kd5 5. Bf7+ Ne6) 3... Kc5
4. Rbc8+ Nc7 5. Rxc7+ (5. Bf7 d5 6. Bxg8 Kd6 7. Bxh7 (7. Bf7 Nxe8 8. Rxe8 Bf8)
7... Qxh7 8. Rxc7 Kxc7 9. Rxe7 Qxd3) 5... Kd5 6. Bf7+ e6 (6... Ke5 7. Rxe7#) 7.
Bxg8 (7. Bxe6+ dxe6 8. Rxg8 Qxg8 9. Rxg7 Qxg7 10. Nxg7 Bxd3) 7... Bxg8 {
White is significantly behind in material but black's queen lacks mobility.
White can narrow the material imbalance with the natural 8.Rcc8 or 8.R:d7.} 8.
Rec8 $3 (8. Rxd7 $2 Ba1 9. Rf8 (9. e4+ Kd4 10. Rxd6+ Kc3 11. d4 Kd2) 9... Qb2
10. Nf6+ Qxf6 11. Rxf6 Bxf6 12. Rxa7 h5 13. gxh5 g4 14. Rc7 g3 15. fxg3 f2 16.
Rc1 Bg5) (8. Rcc8 Qh7 9. Re7 Qxd3 10. Rxg7 Ke5 11. Rgxg8 Qe2) 8... Ba1 $1 (8...
Qh7 9. Rxd7 Qxd3 10. Rxd6+ Kxd6 11. Rd8+ Ke7 12. Rxd3 Bh7 13. e4 Bxe4 14. Re3
Bc2+ 15. Kb4 Bd4 16. Rxf3 Bd1 17. Rd3 Bc5+ 18. Kc3 Bxg4 19. Ng3 Bxf2 20. Ne4
Bg1 21. Rg3 Bf5 22. Rxg1 Bxe4 23. Kd4 Bd5 24. Ke5 Bxa2 25. Ra1 Bc4 26. Rxa7+
Kf8 27. Rh7 Bxb5 28. Rxh6 Bc4 29. Rg6) (8... e5 9. Rxd7) (8... Ke5 9. Rxd7 $18)
9. Rc1 $1 (9. Rc2 $2 Qh7 10. d4 Qg6 11. Rd2 Bf7 12. Ng3 Bxd4 13. Rxd4+ Ke5 14.
Rd1 d5 15. a3 d6 16. Rc3 Be8 17. Kb4 Qh7 18. a4 a6 19. bxa6 Qa7 20. Kb3 Qxa6
21. Rd4 Qa5 22. Rc1 b5 23. axb5 Bxb5 24. Rb1 Bc4+ 25. Kc2 Qa2+ 26. Rb2 Qa4+ 27.
Kb1 Qa5 28. Kc2 Qe1 29. Rd2 Be2 30. Kb3 Qxf2 31. Nxe2 fxe2 32. Rxe2 Qf3) 9...
Qb2 (9... Ke5 $2 10. Rxa1 d5 11. d4+ Kd6 12. Rac1 Ke7 (12... Qh7 13. Nf6 Qd3
14. R8c7) 13. R1c7 Qh7 14. Rxg8 Qxg8 15. Rxd7+ Kxd7 16. Nf6+ Ke7 17. Nxg8+ Kf7
18. Nxh6+ Kg7 19. Kb4 Kxh6 20. Kc3 Kg6 21. Kd3 Kf6 22. e4) 10. R8c2 $1 {
White completes his own Bristol.} (10. R1c2 $2 Qb1 11. d4 e5 12. Nf6+ Ke6 13.
Nxg8 exd4 $19) 10... Qh8 (10... Qe5 $2 11. d4 Bxd4 (11... Qh8 12. Rc8 $18) 12.
Rd2) 11. Rc8 $1 (11. d4 Bxd4 12. Rd2 Bh7 13. Rxd4+ Ke5 14. Ng3 Qa8 $19) 11...
Bg7 {Black compl etes the return Bristol and now threatens 12..Qh7 followed by
Bf7. The alternatives fail as follows:} (11... Bb2 12. R1c2) (11... Bd4 12.
R1c4 Bxe3 (12... Bc5 $2 13. Rf8 $18) 13. fxe3 Qa1 14. Rd4+ Ke5 15. Re4+ Kd5 16.
Rd4+ $11) (11... Be5 12. R1c4) (11... Qh7 12. Rxa1 Qxd3 13. Nf6+ Ke5 14. Nxd7+
Kd5 15. Nf6+ $11) 12. R1c7 $3 {White too must complete the Bristol.} (12. Rd8
$2 Qh7 13. Rxd7 (13. e4+ Kd4 14. Rxd7 Kxd3 15. Ng3 (15. Re1 Bd4 16. Rd1+ Kxe4
17. Rxh7 Bxh7 18. Rd2 Bg6 19. Ng3+ Ke5 20. Kb3 Bc5)) 13... Qxd3 14. Rxg7 Ke5
15. Rxg8 Qd2 16. Rgc8 Qxa2+ 17. Kb4 Qb2+ 18. Ka4 Qxf2 $19) (12. Re8 $2 Qh7 13.
Re7 Qxd3 14. Rxg7 Ke5 15. Rxg8 Qd2 16. Rgc8 Qxa2+ 17. Kb4 Qb2+ 18. Ka4 Qxf2 19.
R8c2 Qxe3 $19) 12... Ba1 $1 13. Rc1 $1 Qb2 14. R8c2 $1 Qh8 15. Rc8 $1 Bg7 $1
16. R1c7 $3 Qh7 {0} 17. Rxd7 {-0.81/37 3} Qxd3 18. Rxd6+ Kxd6 19. Rd8+ Ke7 20.
Rxd3 Bh7 21. Rb3 Be5 1/2-1/2

[Nordlandia]

[pgn][Event "?"]
[Site "?"]
[Date "2017.02.13"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "4K1n1/3PBPk1/1r3qPn/1r5P/3Q4/8/3R4/3b4 b - - 0 1"]
[PlyCount "18"]

1... Rb8+ 2. d8=B Re5 3. Qxe5 Ba4+ 4. Rd7 Qxe5 5. f8=B+ Kh8 6. g7+ Qxg7 7.
Bxg7+ Kh7 8. Bxh6 Rb7 9. Bhg5 Bxd7+ 10. Kf7 1/2-1/2[/pgn]

Code: Select all

[Event "?"]
[Site "?"]
[Date "2017.02.13"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "4K1n1/3PBPk1/1r3qPn/1r5P/3Q4/8/3R4/3b4 b - - 0 1"]
[PlyCount "18"]

1... Rb8+ 2. d8=B Re5 3. Qxe5 Ba4+ 4. Rd7 Qxe5 5. f8=B+ Kh8 6. g7+ Qxg7 7.
Bxg7+ Kh7 8. Bxh6 Rb7 9. Bhg5 Bxd7+ 10. Kf7 1/2-1/2