I know, still the study is baded on stairway-mate. Even if i know it's mate in 5, i would rather choose the longest mate for cosmetic reasons.Ignacio wrote:[pgn][Event "tt21#3822 {m}"]
[Site "?"]
[Date "1981.??.??"]
[Round "?"]
[White "Melnichenko E"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "1bb2N2/5pN1/p5nq/1p2P3/2p1kP2/3p2P1/4p1KP/1rr1Q1BB w - - 0 1"]
[PlyCount "19"]
[EventDate "1981.??.??"]
1. Kf2+ Kd4 2. Kf3+ Kd5 3. Ke3+ Kc5 4. Ke4+ Kc6 5. Kd4+ Kb6 6. Kd5+ Kb7 (6...
Kc7 7. Qa5+ Kb7 8. Kc5+) 7. Kc5+ Ka7 8. Kc6+ Ka8 9. Kb6+ Bb7 10. Bxb7# *
[/pgn]It´s mate in 5.Code: Select all
[Event "tt21#3822 {m}"] [Site "?"] [Date "1981.??.??"] [Round "?"] [White "Melnichenko E"] [Black "White wins"] [Result "*"] [SetUp "1"] [FEN "1bb2N2/5pN1/p5nq/1p2P3/2p1kP2/3p2P1/4p1KP/1rr1Q1BB w - - 0 1"] [PlyCount "19"] [EventDate "1981.??.??"] 1. Kf2+ Kd4 2. Kf3+ Kd5 3. Ke3+ Kc5 4. Ke4+ Kc6 5. Kd4+ Kb6 6. Kd5+ Kb7 (6... Kc7 7. Qa5+ Kb7 8. Kc5+) 7. Kc5+ Ka7 8. Kc6+ Ka8 9. Kb6+ Bb7 10. Bxb7# *
Complex Puzzle
Moderators: hgm, Rebel, chrisw
-
Nordlandia
- Posts: 2821
- Joined: Fri Sep 25, 2015 9:38 pm
- Location: Sortland, Norway
Re: Complex Puzzle
-
Nordlandia
- Posts: 2821
- Joined: Fri Sep 25, 2015 9:38 pm
- Location: Sortland, Norway
Re: Complex Puzzle
Code: Select all
8/8/8/3R4/6PK/5p2/5kpp/1R6 w - - 0 0-
Nordlandia
- Posts: 2821
- Joined: Fri Sep 25, 2015 9:38 pm
- Location: Sortland, Norway
-
Nordlandia
- Posts: 2821
- Joined: Fri Sep 25, 2015 9:38 pm
- Location: Sortland, Norway
Re: Complex Puzzle
Code: Select all
4k3/rP6/3n4/5rP1/6P1/4b3/4B3/3RK3 b - - 0 1[Site "?"]
[Date "1981.??.??"]
[Round "?"]
[White "Marwitz J"]
[Black "Draw"]
[Result "*"]
[SetUp "1"]
[FEN "4k3/rP6/3n4/5rP1/6P1/4b3/4B3/3RK3 b - - 0 1"]
[PlyCount "3"]
[EventDate "1981.??.??"]
1... Nxb7 (1... Bd2+ $1 2. Kxd2 Rd5+ 3. Ke3 $1 Re5+ 4. Kd4 Re4+ 5. Kc5 Nxb7+ 6.
Kb6 Ra5 $1 7. Bb5+ Kf8 8. Rf1+ $1 Kg7 9. Rb1 $1 Re5 $1 10. g6 $1 Rg5 11. Rb4 (
11. Rb2 $143 Nd6 $1 12. Kxa5 Nc4+ $19) (11. Rb3 $143 Nc5 $1 $19) 11... Re5 12.
Rb1 $11) (1... Rxb7 $5 2. gxf5 Nxf5) 2. gxf5 Bxg5 {Possible 8-Man Cook!} *
[/pgn]
Code: Select all
[Event "1 Prize jd01 te03 {m}"]
[Site "?"]
[Date "1981.??.??"]
[Round "?"]
[White "Marwitz J"]
[Black "Draw"]
[Result "*"]
[SetUp "1"]
[FEN "4k3/rP6/3n4/5rP1/6P1/4b3/4B3/3RK3 b - - 0 1"]
[PlyCount "3"]
[EventDate "1981.??.??"]
1... Nxb7 (1... Bd2+ $1 2. Kxd2 Rd5+ 3. Ke3 $1 Re5+ 4. Kd4 Re4+ 5. Kc5 Nxb7+ 6.
Kb6 Ra5 $1 7. Bb5+ Kf8 8. Rf1+ $1 Kg7 9. Rb1 $1 Re5 $1 10. g6 $1 Rg5 11. Rb4 (
11. Rb2 $143 Nd6 $1 12. Kxa5 Nc4+ $19) (11. Rb3 $143 Nc5 $1 $19) 11... Re5 12.
Rb1 $11) (1... Rxb7 $5 2. gxf5 Nxf5) 2. gxf5 Bxg5 {Possible 8-Man Cook!} *
White wins
Code: Select all
R1N3k1/p3Kp1N/2p3p1/2rbb1P1/8/q3r3/P7/B6R w - - 0 0Code: Select all
[Event "1 Honorable Mention jd01 te03 {m}"]
[Site "?"]
[Date "1981.??.??"]
[Round "?"]
[White "Olin P"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "R1N3k1/p3Kp1N/2p3p1/2rbb1P1/8/q3r3/P7/B6R w - - 0 1"]
[PlyCount "27"]
[EventDate "1981.??.??"]
1. Nd6+ Kg7 2. Ne8+ Kh8 3. Nhf6+ (3. Nc7+ $2 Kg7 4. Ne6+ Bxe6 5. Bxe5+ Rcxe5+)
3... Bh2+ 4. Ne4+ Rcc3+ 5. N8d6+ Kg7 6. Bxc3+ Rxc3 7. Rxh2 Re3 8. Rah8 Rxe4+ 9.
Kd7 Be6+ 10. Kc7 Qa5+ 11. Kb8 Bh3 12. R2xh3 Rb4+ 13. Ka8 Qxg5 14. Ne8# *
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Nordlandia
- Posts: 2821
- Joined: Fri Sep 25, 2015 9:38 pm
- Location: Sortland, Norway
Re: Complex Puzzle
1. Nc7 is the fastest approach to victory, however 1. Kh4 is an interesting sideline that transposed into few interesting 8-Man positions, that appears to be convertiable to 7-Man.
[pgn][Event "2 Prize ts21 {m}"]
[Site "?"]
[Date "1981.??.??"]
[Round "?"]
[White "Kralin N"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "k3NB2/p2R1P2/8/6r1/8/7K/r3n3/8 w - - 0 1"]
[PlyCount "21"]
[EventDate "1981.??.??"]
1. Kh4 $143 $5 (1. Bc5 $143 Rg3+ 2. Kh2 (2. Kh4 $144 Ra4+ 3. Kh5 Nf4+ 4. Kh4
Ne2+ 5. Kh5 Nf4+ 6. Kh6 Ne6 7. Nc7+ Kb8 8. Be7 Ra1 9. Bh4 $11) 2... Rf3 $11) (
1. Nc7+ $1 Kb8 2. Na6+ $1 Ka8 $1 3. Bc5 Ng1+ 4. Bxg1 Rh2+ 5. Bxh2 $1 (5. Kxh2
$143 Rg2+ 6. Kh3 Rg3+ 7. Kh4 Rg4+ 8. Kh5 Rg5+ 9. Kh6 Rg6+ 10. Kh7 Rg7+ 11. Kh8
Rh7+ 12. Kg8 Rg7+ 13. Kf8 Rxf7+ 14. Ke8 Re7+ 15. Kd8 Re8+ 16. Kc7 Rc8+ 17. Kd6
Rc6+ $11 18. Kd5 Rxa6 $11) 5... Rg3+ $1 6. Kh4 Rg4+ 7. Kh5 Rg5+ 8. Kh6 Rg6+ 9.
Kh7 Rg7+ 10. Kh8 Rh7+ $1 11. Kg8 Rg7+ 12. Kf8 Rxf7+ $1 13. Ke8 Re7+ 14. Kd8
Re8+ 15. Kc7 Rc8+ 16. Kd6 Rc6+ 17. Kd5 $1 Rxa6 18. Rd8+ Kb7 19. Rb8#) 1... Rg2
(1... Rg1 2. Bb4 Nd4 $11) 2. Nc7+ Kb7 3. Ne6+ Kc6 4. Rd6+ Kb5 5. Nc7+ Kc4 6.
Bg7 Rh2+ 7. Kg5 Rg2+ 8. Kf6 Rf2+ 9. Ke7 Rc2 10. Ne6 Rxf7+ 11. Kxf7 {Winning
8-man position} *
[/pgn]
---------------------
Another 8-Man cook
[pgn][Event "1/2 Prize wf07 ts23 {m}"]
[Site "?"]
[Date "1983.??.??"]
[Round "?"]
[White "Bazlov Y"]
[Black "Draw"]
[Result "*"]
[SetUp "1"]
[FEN "1R6/k7/6b1/1K6/8/1P6/1B2r2b/8 w - - 0 1"]
[PlyCount "27"]
[EventDate "1983.??.??"]
1. Rg8 $1 Bd3+ 2. Kb4 Bd6+ (2... Rxb2 $144 3. Kc3 Bh7 4. Rg7+ $11) 3. Kc3 Bb1
4. Ba1 Ra2 (4... Be5+ $144 5. Kb4 Bxa1 6. Rg1 Rb2 7. Rh1 $11) 5. Re8 (5. Rg5
$143 Bf4 6. Rd5 Be4 7. Rd7+ Bb7 8. Bb2 Be5+ $19) 5... Rxa1 6. Re1 (6. Kb2 $143
Bg6 7. Re6 Ra6 8. Rxg6 Be5+ $19) 6... Bf8 7. Rg1 Bd6 (7... Bc5 $144 8. Rd1 Ba3
9. b4 $11) 8. Re1 $1 Ba2 9. Re4 $1 (9. Rxa1 $143 Be5+ $19) (9. Re6 $143 Ba3 $19
) 9... Bf8 10. Rg4 $1 Bb1 11. Rg1 $1 (11. Kb2 $143 Bf5 12. Rg8 Rb1+ $19) 11...
Bd6 12. Re1 Bf8 13. Rg1 Ba2 14. Rg4 $1 $11 *
[/pgn]
Code: Select all
k3NB2/p2R1P2/8/6r1/7K/8/r3n3/8 b - - 0 1[Site "?"]
[Date "1981.??.??"]
[Round "?"]
[White "Kralin N"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "k3NB2/p2R1P2/8/6r1/8/7K/r3n3/8 w - - 0 1"]
[PlyCount "21"]
[EventDate "1981.??.??"]
1. Kh4 $143 $5 (1. Bc5 $143 Rg3+ 2. Kh2 (2. Kh4 $144 Ra4+ 3. Kh5 Nf4+ 4. Kh4
Ne2+ 5. Kh5 Nf4+ 6. Kh6 Ne6 7. Nc7+ Kb8 8. Be7 Ra1 9. Bh4 $11) 2... Rf3 $11) (
1. Nc7+ $1 Kb8 2. Na6+ $1 Ka8 $1 3. Bc5 Ng1+ 4. Bxg1 Rh2+ 5. Bxh2 $1 (5. Kxh2
$143 Rg2+ 6. Kh3 Rg3+ 7. Kh4 Rg4+ 8. Kh5 Rg5+ 9. Kh6 Rg6+ 10. Kh7 Rg7+ 11. Kh8
Rh7+ 12. Kg8 Rg7+ 13. Kf8 Rxf7+ 14. Ke8 Re7+ 15. Kd8 Re8+ 16. Kc7 Rc8+ 17. Kd6
Rc6+ $11 18. Kd5 Rxa6 $11) 5... Rg3+ $1 6. Kh4 Rg4+ 7. Kh5 Rg5+ 8. Kh6 Rg6+ 9.
Kh7 Rg7+ 10. Kh8 Rh7+ $1 11. Kg8 Rg7+ 12. Kf8 Rxf7+ $1 13. Ke8 Re7+ 14. Kd8
Re8+ 15. Kc7 Rc8+ 16. Kd6 Rc6+ 17. Kd5 $1 Rxa6 18. Rd8+ Kb7 19. Rb8#) 1... Rg2
(1... Rg1 2. Bb4 Nd4 $11) 2. Nc7+ Kb7 3. Ne6+ Kc6 4. Rd6+ Kb5 5. Nc7+ Kc4 6.
Bg7 Rh2+ 7. Kg5 Rg2+ 8. Kf6 Rf2+ 9. Ke7 Rc2 10. Ne6 Rxf7+ 11. Kxf7 {Winning
8-man position} *
[/pgn]
Code: Select all
[Event "2 Prize ts21 {m}"]
[Site "?"]
[Date "1981.??.??"]
[Round "?"]
[White "Kralin N"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "k3NB2/p2R1P2/8/6r1/8/7K/r3n3/8 w - - 0 1"]
[PlyCount "21"]
[EventDate "1981.??.??"]
1. Kh4 $143 $5 (1. Bc5 $143 Rg3+ 2. Kh2 (2. Kh4 $144 Ra4+ 3. Kh5 Nf4+ 4. Kh4
Ne2+ 5. Kh5 Nf4+ 6. Kh6 Ne6 7. Nc7+ Kb8 8. Be7 Ra1 9. Bh4 $11) 2... Rf3 $11) (
1. Nc7+ $1 Kb8 2. Na6+ $1 Ka8 $1 3. Bc5 Ng1+ 4. Bxg1 Rh2+ 5. Bxh2 $1 (5. Kxh2
$143 Rg2+ 6. Kh3 Rg3+ 7. Kh4 Rg4+ 8. Kh5 Rg5+ 9. Kh6 Rg6+ 10. Kh7 Rg7+ 11. Kh8
Rh7+ 12. Kg8 Rg7+ 13. Kf8 Rxf7+ 14. Ke8 Re7+ 15. Kd8 Re8+ 16. Kc7 Rc8+ 17. Kd6
Rc6+ $11 18. Kd5 Rxa6 $11) 5... Rg3+ $1 6. Kh4 Rg4+ 7. Kh5 Rg5+ 8. Kh6 Rg6+ 9.
Kh7 Rg7+ 10. Kh8 Rh7+ $1 11. Kg8 Rg7+ 12. Kf8 Rxf7+ $1 13. Ke8 Re7+ 14. Kd8
Re8+ 15. Kc7 Rc8+ 16. Kd6 Rc6+ 17. Kd5 $1 Rxa6 18. Rd8+ Kb7 19. Rb8#) 1... Rg2
(1... Rg1 2. Bb4 Nd4 $11) 2. Nc7+ Kb7 3. Ne6+ Kc6 4. Rd6+ Kb5 5. Nc7+ Kc4 6.
Bg7 Rh2+ 7. Kg5 Rg2+ 8. Kf6 Rf2+ 9. Ke7 Rc2 10. Ne6 Rxf7+ 11. Kxf7 {Winning
8-man position} *
Another 8-Man cook
Code: Select all
1R6/k7/6b1/1K6/8/1P6/1B2r2b/8 w - - 0 1[Site "?"]
[Date "1983.??.??"]
[Round "?"]
[White "Bazlov Y"]
[Black "Draw"]
[Result "*"]
[SetUp "1"]
[FEN "1R6/k7/6b1/1K6/8/1P6/1B2r2b/8 w - - 0 1"]
[PlyCount "27"]
[EventDate "1983.??.??"]
1. Rg8 $1 Bd3+ 2. Kb4 Bd6+ (2... Rxb2 $144 3. Kc3 Bh7 4. Rg7+ $11) 3. Kc3 Bb1
4. Ba1 Ra2 (4... Be5+ $144 5. Kb4 Bxa1 6. Rg1 Rb2 7. Rh1 $11) 5. Re8 (5. Rg5
$143 Bf4 6. Rd5 Be4 7. Rd7+ Bb7 8. Bb2 Be5+ $19) 5... Rxa1 6. Re1 (6. Kb2 $143
Bg6 7. Re6 Ra6 8. Rxg6 Be5+ $19) 6... Bf8 7. Rg1 Bd6 (7... Bc5 $144 8. Rd1 Ba3
9. b4 $11) 8. Re1 $1 Ba2 9. Re4 $1 (9. Rxa1 $143 Be5+ $19) (9. Re6 $143 Ba3 $19
) 9... Bf8 10. Rg4 $1 Bb1 11. Rg1 $1 (11. Kb2 $143 Bf5 12. Rg8 Rb1+ $19) 11...
Bd6 12. Re1 Bf8 13. Rg1 Ba2 14. Rg4 $1 $11 *
[/pgn]
Code: Select all
[Event "1/2 Prize wf07 ts23 {m}"]
[Site "?"]
[Date "1983.??.??"]
[Round "?"]
[White "Bazlov Y"]
[Black "Draw"]
[Result "*"]
[SetUp "1"]
[FEN "1R6/k7/6b1/1K6/8/1P6/1B2r2b/8 w - - 0 1"]
[PlyCount "27"]
[EventDate "1983.??.??"]
1. Rg8 $1 Bd3+ 2. Kb4 Bd6+ (2... Rxb2 $144 3. Kc3 Bh7 4. Rg7+ $11) 3. Kc3 Bb1
4. Ba1 Ra2 (4... Be5+ $144 5. Kb4 Bxa1 6. Rg1 Rb2 7. Rh1 $11) 5. Re8 (5. Rg5
$143 Bf4 6. Rd5 Be4 7. Rd7+ Bb7 8. Bb2 Be5+ $19) 5... Rxa1 6. Re1 (6. Kb2 $143
Bg6 7. Re6 Ra6 8. Rxg6 Be5+ $19) 6... Bf8 7. Rg1 Bd6 (7... Bc5 $144 8. Rd1 Ba3
9. b4 $11) 8. Re1 $1 Ba2 9. Re4 $1 (9. Rxa1 $143 Be5+ $19) (9. Re6 $143 Ba3 $19
) 9... Bf8 10. Rg4 $1 Bb1 11. Rg1 $1 (11. Kb2 $143 Bf5 12. Rg8 Rb1+ $19) 11...
Bd6 12. Re1 Bf8 13. Rg1 Ba2 14. Rg4 $1 $11 *
-
Nordlandia
- Posts: 2821
- Joined: Fri Sep 25, 2015 9:38 pm
- Location: Sortland, Norway
Re: Complex Puzzle
Code: Select all
8/8/1N6/3R4/R7/n1k5/r7/n1K5 w - - 0 1[Site "?"]
[Date "1981.??.??"]
[Round "?"]
[White "Botokanov A"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "8/8/1N6/3R4/R7/n1k5/r7/n1K5 w - - 0 1"]
[PlyCount "13"]
[EventDate "1981.??.??"]
1. Rc5+ Kb3 2. Rc3+ $11 (2. Rh4 $36) 2... Kxc3 3. Nd5+ Kd3 4. Nb4+ Kc3 5. Nxa2+
Kb3 6. Rb4+ Kxa2 7. Rb2# *
[/pgn]
Code: Select all
[Event "cs12#39 {m}"]
[Site "?"]
[Date "1981.??.??"]
[Round "?"]
[White "Botokanov A"]
[Black "White wins"]
[Result "*"]
[SetUp "1"]
[FEN "8/8/1N6/3R4/R7/n1k5/r7/n1K5 w - - 0 1"]
[PlyCount "13"]
[EventDate "1981.??.??"]
1. Rc5+ Kb3 2. Rc3+ $11 (2. Rh4 $36) 2... Kxc3 3. Nd5+ Kd3 4. Nb4+ Kc3 5. Nxa2+
Kb3 6. Rb4+ Kxa2 7. Rb2# *
EG 79 | Page 423 | No. 5550
Interesting sidelines!
[d]5r2/r7/2pN2B1/2KpN3/4p3/2P3B1/2b5/7k w - - 0 1
[d]1r6/8/2pN2B1/r1KpN3/4p3/2P3B1/2b5/7k w - - 0 1
-
Nordlandia
- Posts: 2821
- Joined: Fri Sep 25, 2015 9:38 pm
- Location: Sortland, Norway
Re: Complex Puzzle
Code: Select all
r4r2/q1p2p1k/1pp3n1/3b4/P3R1Qp/1P3P2/KB2N1P1/RB1nbN2 w - - 0 0
-
Nordlandia
- Posts: 2821
- Joined: Fri Sep 25, 2015 9:38 pm
- Location: Sortland, Norway
Re: Complex Puzzle
Possible cook
------------------
[d]1rr4b/8/8/1p6/4k3/7R/7N/B2R3K w - - 0 2
Code: Select all
7n/2P1n3/k7/4K3/r1b5/2N3r1/8/2R1b2R w - - 0 0------------------
[d]1rr4b/8/8/1p6/4k3/7R/7N/B2R3K w - - 0 2
-
Nordlandia
- Posts: 2821
- Joined: Fri Sep 25, 2015 9:38 pm
- Location: Sortland, Norway
-
Nordlandia
- Posts: 2821
- Joined: Fri Sep 25, 2015 9:38 pm
- Location: Sortland, Norway
Re: Complex Puzzle
[d]4N1n1/3R4/K2b2r1/3kp1NR/2rP4/8/8/8 w - - 0 0
[pgn][Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "4N1n1/3R4/K2b2r1/3kp1NR/2rP4/8/8/8 w - - 0 0"]
[PlyCount "5"]
{[#]} 1. Nf7 Rxd4 2. Rxd6+ Rxd6+ 3. Nexd6 {Houdini 5.01 Pro} *
[/pgn]
[pgn][Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "4N1n1/3R4/K2b2r1/3kp1NR/2rP4/8/8/8 w - - 0 0"]
[PlyCount "5"]
{[#]} 1. Nf7 Rxd4 2. Rxd6+ Rxd6+ 3. Nexd6 {Houdini 5.01 Pro} *
[/pgn]
Code: Select all
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "4N1n1/3R4/K2b2r1/3kp1NR/2rP4/8/8/8 w - - 0 0"]
[PlyCount "5"]
{[#]} 1. Nf7 Rxd4 2. Rxd6+ Rxd6+ 3. Nexd6 {Houdini 5.01 Pro} *