[Event "FIDE Olympic Tournament"]
[Site "?"]
[Date "2016.??.??"]
[Round "?"]
[White "González, Luis Miguel"]
[Black "3rd prize"]
[Result "1-0"]
[SetUp "1"]
[FEN "7k/3B4/q5Pp/7N/3K4/8/2R5/r7 w - - 0 1"]
[PlyCount "27"]
[EventDate "2016.??.??"]

1. g7+ $1 (1. Rc8+ $2 Qxc8 2. g7+ Kh7 $1 3. Bxc8 Rf1 $1 ({but not} 3... Rg1 $2
4. Bf5+ Kg8 5. Be6+ Kh7 6. g8=Q+ Rxg8 7. Nf6+ Kg7 8. Nxg8 $18) 4. Bb7 $1 Rf7 $1
5. Be4+ Kg8 6. Bd5 Kh7 7. Bxf7 {stalemate}) 1... Kh7 2. Bf5+ Kg8 3. Rc8+ Qxc8
4. Bxc8 Rd1+ $1 5. Ke5 $1 (5. Ke4 $2 Re1+ 6. Kd5 Kf7 $1 $11) 5... Re1+ 6. Kf6
$1 (6. Kd6 $2 Kf7 $1 7. Bb7 Re6+ $1 ({but not} 7... Re8 $2 8. Bc6 $1 Rd8+ 9.
Kc7 Rd1 10. Be8+ $1 Kg8 11. Bd7 Rg1 12. Be6+ Kh7 13. g8=Q+ Rxg8 14. Nf6+ $18)
8. Kc5 Re8 9. Bc6 Rd8 $1 10. Bd5+ Kg6 11. Nf4+ Kh7 $1 12. Be4+ Kg8 13. Nh5 Kf7
$1 14. Bd5+ Kg6 $11 {positional draw}) 6... Rf1+ 7. Bf5 $1 (7. Kg6 $2 Rg1+ 8.
Kxh6 Rg6+ $1 9. Kxg6 {stalemate}) 7... Rf2 $1 8. Ke5 $1 Re2+ 9. Be4 $1 (9. Kd6
$2 Kf7 $1 $11) 9... Kf7 $1 10. Kd4 $1 (10. Kf4 $2 Rd2 $1 11. Bg6+ Kg8 12. Bf5
Rf2+ 13. Ke5 {loss of time}) 10... Rd2+ 11. Bd3 $1 (11. Kc5 $2 Rd8 $1 $11)
11... Rd1 12. Kc3 $1 Rc1+ 13. Bc2 $1 Rg1 14. Bb3+ {Judge Martin Minski:
"Amazing systematic movement. Compare with Dobrescu (HHdbV#36369) and Krug &
Garcia (HHdbV#01318), but this is not the same pattern"} 1-0

[Event "Valery Kirillov 65 JT"]
[Site "?"]
[Date "2016.??.??"]
[Round "?"]
[White "González, Luis Miguel"]
[Black "2nd prize"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/8/1qp2Q2/8/7n/2P4p/p6p/R3K2k w Q - 0 1"]
[PlyCount "37"]
[EventDate "2016.??.??"]

1. Ke2+ $1 (1. O-O-O+ $2 Qg1 $1 ({but not} 1... Kg2 $2 2. Qg5+ Kf3 3. Qh5+ Kg3
4. Rd3+ Kg2 5. Qg4+ Kh1 6. Rd1+ Qg1 7. Kb2 Qxd1 8. Qxd1+ Kg2 9. Qg4+ Kf1 10.
Qxh3+ Kg1 11. Qg4+ Ng2 12. Qd1+ Kf2 13. Kxa2 $18) 2. Qxc6+ Ng2 3. Qa4 Ne3 4.
Qa8+ Ng2 5. Qxa2 Qxd1+ $1 6. Kxd1 Kg1 7. Qa7+ Kf1 $1 8. Qf7+ Kg1 $11) (1. Qf1+
$2 Qg1 2. Ke2 c5 3. Rxa2 Ng2 $1 4. Ra1 Nf4+ 5. Qxf4 Qxa1 $11) 1... Qg1 (1...
Qb1 2. Qf1+ $1 Qxf1+ 3. Kxf1 Nf3 4. Kf2+ Ng1 5. Rxa2 $18) 2. c4 $1 Ng2 $1 3.
Kd2 $3 (3. Rf1 $2 a1=Q $1 4. Rxa1 Nf4+ 5. Kd2 (5. Kf3 Nd3 $1 6. Qc3 c5 $1 $11)
5... Qxa1 $1 6. Qxa1+ Kg2 7. Qg7+ Kf1 $1 $11) 3... Ne3 (3... c5 4. Qh8 $1 Qb1
5. Qb2 $1 Kg1 6. Rxb1+ axb1=Q 7. Qxb1+ $18) 4. Qxc6+ (4. c5 $2 Qxa1 $1 5. Qxa1+
Kg2 6. Qg7+ Kf3 $1 $11) 4... Ng2 5. Qf6 Nf4 $1 (5... Ne3 6. Ke2 $1 Ng2 7. Rf1
$18 ({or} 7. c5 $18)) 6. c5 $1 Qb1 $1 (6... Kg2 7. Qg5+ Kh1 8. Qg7 Nd5 9. Ke2
Nf4+ 10. Kf3 $1 {transposes to the main line}) 7. Qg7 $1 Nd5 8. Ke2 Nf4+ 9. Ke3
$1 (9. Kf2 $2 Nd3+ $1 10. Kg3 Qg1+ 11. Kh4 Qxa1 $1 12. Qxa1+ Kg2 13. Qxa2+ Nf2
14. Qa8+ Kf1 $1 15. Kg3 h1=Q 16. Qxh1+ Nxh1+ 17. Kh2 Nf2 $11) 9... Ng2+ 10. Kf2
$1 (10. Kf3 $2 Ne1+ 11. Kf2 Qxa1 12. Qxa1 {stalemate}) 10... Qg1+ 11. Ke2 Nf4+
12. Kf3 $1 (12. Kd2 $2 Nd5 $1 13. Rc1 Ne3 14. Qb7+ Ng2 15. Qa7 Qxc1+ $1 16.
Kxc1 Kg1 $1 17. c6+ Ne3 18. Qxe3+ Kg2 $11) 12... Nd5 13. Qe5 $1 (13. Qd4 $2 Ne3
$1 14. Kf4 Ng2+ 15. Ke5 Qb1 $1 $11) 13... Ne3 14. Kf4 Ng2+ 15. Kg5 ({or} 15.
Kg4) 15... Ne1+ 16. Kh5 $1 (16. Kh6 $2 Nf3 17. Qc3 Qxa1 $1 18. Qxa1+ Kg2 19.
Qxa2+ Kg1 $11) 16... Nf3 17. Qc3 ({or} 17. Qh8) 17... Qxa1 18. Qxa1+ Kg2 19.
Qxa2+ {Judge Sergey Osintsev: "It is extremely exciting and interesting to
understand the causes and consequences of what is happening on the board
inthismysterious study!"} 1-0

[Event "Vitaly Halberstadt 50 MT"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "González, Luis Miguel"]
[Black "2nd prize (section A)"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "5k2/5p1B/b4P2/4P3/1K1P4/4n3/1p6/8 w - - 0 1"]
[PlyCount "33"]
[EventDate "2016.??.??"]

1. Kb3 $1 (1. Kc3 $2 Nc4 $1 {zz} 2. Bb1 Na3 3. Kxb2 Nxb1 4. Kxb1 Bc4 5. Kc2 Ke8
6. Kc3 Bd5 7. Kb4 Kd7 8. Kc5 Ke6 $19) (1. Ka3 $2 Nc4+ 2. Kb3 b1=Q+ 3. Bxb1 Nd2+
4. Kc2 Nxb1 5. Kxb1 Bc4 $19) 1... Nc4 $1 2. Kc3 $1 {zz} Ke8 $1 3. Bc2 $1 {zz}
Bb5 (3... Na3 4. Ba4+ Bb5 5. Kxb2 $1 Nc4+ (5... Bxa4 6. Kxa3 Bc6 7. Kb4 Kd7 8.
Kc5 $11) 6. Kc3 $1 Bxa4 7. Kxc4 $11) 4. Kb3 $1 {zz} (4. Bh7 $2 Kd7 5. Bf5+ Kd8
$1 6. Bh7 Ba6 $1 {zz} 7. Be4 (7. Bf5 Bc8 $19) 7... Bb7 $19) 4... Kd8 5. Bh7 $1
Ba6 (5... Kd7 6. Bf5+ Ke8 7. Bc2 $1 $11) (5... b1=Q+ 6. Bxb1 Nd2+ 7. Kb4 $1
Nxb1 8. Kxb5 Kd7 9. d5 $11) 6. Kc3 $1 {zz} Kd7 7. Bf5+ (7. Bb1 $2 Ke6 8. Ba2
Bb5 $1 9. Kc2 Kf5 10. Kc3 Nb6 11. Kxb2 (11. Bb1+ Kf4 12. e6 fxe6 13. f7 Nd7 $19
) 11... Bc4 12. Bb1+ Kf4 13. Kc3 Be6 $19) 7... Ke8 8. Bc2 $1 {zz} (8. Bh7 $2
Kd8 $1 {zz}) 8... Bb5 9. Kb3 $1 {zz} Ne3 $1 10. Bh7 $3 (10. Bb1 $2 Nd1 11. d5 (
11. Kc2 Be2 12. Kd2 Bh5 $1 13. Bc2 Bf3 $1 14. Bf5 Kd8 $1 15. Bh7 Kd7 16. Bc2
Ke6 $19) 11... Be2 $1 12. e6 Bh5 $1 13. exf7+ (13. Ka3 Bg6 14. d6 Bh5 $1 15.
d7+ Kd8 16. e7+ Kxd7 17. Bc2 b1=Q 18. Bxb1 Nf2 $1 19. Bc2 Bd1 20. Bf5+ Ke8 $19)
13... Kxf7 14. d6 Bg4 $1 15. Bh7 Kxf6 16. Kc2 Ke5 $1 17. d7 Bxd7 18. Kxd1 Ba4+
19. Kd2 Kd4 20. Bd3 Bb3 $1 $19) (10. Be4 $2 Nd1 11. Bc2 Bc6 $1 $19) 10... Nd1
11. d5 $1 (11. Kc2 $2 Ba4+ 12. Kb1 Bb3 13. Be4 Bd5 14. Bc2 Nc3+ 15. Kxb2 Ne2
$19) 11... Be2 $1 (11... Bd7 12. e6 fxe6 13. dxe6 Bxe6+ 14. Kc2 $11) 12. e6 Bh5
$1 13. Bb1 $3 {zz} (13. Kc2 $2 Bg6+ 14. Bxg6 fxg6 15. d6 Nc3 $1 16. Kxb2 Na4+
17. Ka3 Nc5 18. d7+ Kd8 19. f7 Nxe6 $19) (13. exf7+ $2 Kxf7 $1 14. Kc2 Bg6+ 15.
Bxg6+ Kxg6 $19) 13... Bf3 $1 (13... Bg6 14. d6 $1 Bh5 15. d7+ Kd8 16. exf7
Bxf7+ 17. Kc2 Bh5 18. f7 Bxf7 19. Kxd1 $11) 14. d6 $1 (14. exf7+ $2 Kxf7 15. d6
Bg4 $1 16. Bh7 Kxf6 17. Kc2 Ke5 $1 18. d7 Bxd7 19. Kxd1 Ba4+ 20. Kd2 Kd4 21.
Bd3 Bb3 $1 $19) 14... Bd5+ (14... Bh5 15. d7+ Kd8 16. Kc2 Ne3+ 17. Kd3 Nd5 18.
exf7 $11) (14... Bg4 15. d7+ $1 Kd8 16. exf7 Be6+ 17. Kc2 $11) 15. Kc2 Ne3+ 16.
Kd3 $1 fxe6 17. Kxe3 (17. f7+ $2 Kxf7 18. Kxe3 e5 19. Kd2 e4 20. Kc3 e3 21. Kd3
Be4+ $1 22. Kxe4 e2 $19 {Judges Jonathan Mestel and Allain Pallier: "An
astounding amount of play in a fairly static position. The zugzwangs continue
even once the white pawns start moving. Positions involving corresponding
squares for pieces other than kings are always interesting. And yet: this is
not a solvers' study - it is fairly technical and not easy to understand and
is really a long, complex positional draw"}) 1/2-1/2

[Event "Mario G. García 70 JT"]
[Site "?"]
[Date "2018.??.??"]
[Round "?"]
[White "González, Luis Miguel"]
[Black "2nd prize (draw study section)"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "R6K/2N5/P4r2/1pn1N3/3R4/k5n1/1p3p2/8 w - - 0 1"]
[PlyCount "33"]
[EventDate "2018.??.??"]

1. Nxb5+ $1 ({Thematic try} 1. Rd1 $2 f1=Q 2. Rxf1 Nxf1 3. Nxb5+ Kb4 4. Rb8 (4.
Na3 Nxa6 5. Nec4 b1=Q 6. Nxb1 Kxc4 $19) 4... Nxa6 5. Rb7 Nc5 6. Rb8 Nd2 $1 7.
Nd4+ Kc3 8. Nb5+ Kb3 9. Nd6+ Ka2 10. Ra8+ Na4 $1 11. Rxa4+ Kb3 12. Ndc4 (12.
Ra6 Rf8+ $1 13. Kg7 Rb8 14. Nc6 Rb4 $1 15. Nxb4 b1=Q 16. Nc6 Qg1+ $1 17. Kh7
Qf1 $1 $19) 12... Nxc4 13. Nxc4 b1=Q 14. Nd2+ Kxa4 15. Nxb1 Kb4 $1 16. Nd2 Rf4
$1 $19) 1... Kb3 2. Rd1 $1 (2. Nc4 $2 Rh6+ $1 3. Kg8 $1 Nge4 $1 4. Rd1 Rg6+ $1
5. Kh8 Rg1 6. Rad8 $18) 2... Rh6+ ({main} 2... f1=Q 3. Rxf1 Nxf1 $1 (3... Rxf1
4. Na3 $1 Kxa3 5. Rb8 b1=Q 6. Rxb1 Rxb1 7. a7 $11) 4. Rb8 $1 (4. Na3 $2 Nxa6 $1
5. Nec4 b1=Q 6. Nxb1 Kxc4 $19) 4... Nxa6 5. Nd4+ $1 Ka2 (5... Kc3 6. Ne2+ $1 ({
but not} 6. Rxb2 $2 Kxd4 $1 $19) 6... Kc2 7. Nd4+ Kc1 8. Rxb2 $11 {
as the main line} ({also} 8. Nd3+ $11)) 6. Rxb2+ $1 Kxb2 7. Kg7 $1 {domination}
Rb6 {(d6)} ({or} 7... Rf2 {(f4)} 8. Nd3+ $11) 8. Nc4+ $11) 3. Kg7 $1 (3. Kg8 $2
f1=Q 4. Rxf1 Nxf1 5. Na3 Nxa6 6. Nec4 b1=Q 7. Nxb1 Kxc4 $19) 3... Rh1 $1 (3...
Nf5+ 4. Kg8 Ne3 5. Nd4+ $1 Kc3 6. Rb1 f1=Q 7. Rxf1 Nxf1 8. Ne2+ Kd2 9. Rb8 Na4
10. a7 Ra6 11. Nc4+ $11) 4. Nd4+ $1 Kc3 (4... Ka2 5. a7 Nf5+ 6. Nxf5 Rxd1 7.
Re8 f1=Q 8. a8=Q+ $11) 5. Nb5+ Kb4 $1 6. Nc6+ $1 (6. Rxh1 $2 Nxh1 7. Rb8 f1=Q
8. a7 Ne6+ $1 9. Kg8 b1=Q 10. Na3+ Kc5 11. Nxb1 Qg2+ 12. Kf7 Nc7 $19) 6... Kxb5
7. a7 $1 (7. Rb8+ $2 Kxa6 $1 ({but not} 7... Kxc6 $2 8. a7 Ne6+ 9. Kg8 Nc7 10.
Rc8 Rxd1 11. a8=Q+ Kd7 12. Qb7 Rc1 13. Rxc7+ Rxc7 14. Qd5+ $11) 8. Rxb2 Rxd1 9.
Rxf2 Rd6 $19) 7... Ne6+ $1 (7... Nf5+ 8. Kg8 $1 Rg1+ 9. Kh8 Rxd1 10. Rb8+ Kxc6
11. a8=Q+ Kd6 12. Rd8+ Nd7 13. Rxd7+ Kxd7 14. Qa4+ Ke7 15. Qxd1 $11) 8. Kg8 $1
(8. Kg6 $2 Nc7 $1 9. Rb8+ Kxc6 10. Rc8 Kb6 $1 11. Rxc7 Rxd1 12. a8=Q b1=Q+ $19)
8... Nc7 (8... Rxd1 9. Rb8+ Kc5 10. a8=Q f1=Q 11. Qa7+ $1 Kd6 12. Qe7+ $1 Kxc6
13. Qxe6+ Rd6 14. Qc8+ Kd5 15. Qb7+ $11) 9. Rb8+ Kc5 $1 (9... Kxc6 10. Rc8 $1
Kb7 11. Rxc7+ Kxc7 12. a8=Q Rxd1 13. Qa5+ $11) 10. Rd7 $1 (10. Rxb2 $2 Rxd1 11.
Rxf2 Kxc6 12. Rc2+ Kb6 $1 13. Rxc7 Rd8+ 14. Kf7 Kxc7 $19) 10... f1=Q (10... Nh5
11. Rxc7 $1 Nf6+ 12. Kf8 $1 f1=Q 13. Nd8+ Kd4 14. Rb4+ Ke3 15. Rb3+ Ke4 16.
a8=Q+ Nd5+ 17. Rf7 $11) 11. Ne5 $3 (11. Rxc7 $2 Qc4+ $19 {mates}) 11... Ne4 $1
(11... b1=Q 12. Rxb1 Qxb1 13. Rxc7+ Kd6 14. a8=Q Kxc7 15. Qc6+ $11) (11... Rg1
12. Rxc7+ Kd6 13. a8=Q Nh5+ 14. Ng6 $1 Nf6+ 15. Kg7 Ne8+ 16. Kg8 $1 Rxg6+ 17.
Kh7 Nxc7 18. Qa3+ Kd7 19. Kxg6 $11) (11... Nf5 12. Nd3+ $1 Qxd3 13. Rxd3 b1=Q
14. Rxb1 Rxb1 15. Rc3+ Kd6 16. Rxc7 $1 $11) 12. Rxc7+ $1 (12. Nd3+ $2 Qxd3 $1
13. Rxd3 b1=Q 14. Rxb1 Rxb1 15. Ra3 Na8 $19) 12... Kd6 13. Rd7+ $1 (13. Rc6+ $2
Kxe5 14. Re8+ Kd4 $1 15. Rd8+ Ke3 $19) (13. a8=Q $2 Qg2+ 14. Rg7 Nf6+ 15. Kf8
Qxa8 16. Rxa8 b1=Q $19) 13... Kxe5 (13... Ke6 14. Re8+ Kf5 15. Rf8+ $1 Nf6+ 16.
Rxf6+ Kxf6 17. Ng4+ $1 Kg5 18. Rg7+ Kh4 19. a8=Q b1=Q 20. Nf2 $1 $11) 14. Rd5+
$3 (14. Re8+ $2 Kf5 $1 15. Rf8+ Nf6+ 16. Rxf6+ Kxf6 17. Rf7+ Ke5 18. Rxf1 Rxf1
19. a8=Q b1=Q $19) 14... Kf4 $1 15. Rf8+ Ke3 $1 16. Rxf1 Rxf1 17. Rb5 $1 (17.
a8=Q $2 Nf6+ $1 18. Kg7 b1=Q 19. Qa7+ Kf3 $1 20. Kxf6 Ke2+ $1 21. Kg7 Qb2+ 22.
Qd4 Qb7+ 23. Rd7 (23. Kg6 Qf7+ 24. Kg5 Rg1+ 25. Qxg1 Qg7+ $19) 23... Qg2+ $1
24. Kh8 Rh1+ 25. Rh7 Qa8+ 26. Kg7 Qb7+ 27. Kf6 Qc6+ 28. Kg7 Qc7+ 29. Kf6 Rxh7
$19 {Judge Mario G. García: "This is a complex study with 2 different lines.
One of them leads to a geometrical domination with 7.Kg7! and the second one
involves a precise play of White with beautiful sacrifices and the final
detail 17.Rb5!"}) 1/2-1/2

[Event "Babich 110 MT + Olimpiev 80 MT"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "González, Luis Miguel"]
[Black "2nd prize"]
[Result "1-0"]
[SetUp "1"]
[FEN "k7/1r3r2/1P1p4/3N3K/6Pp/8/4R3/8 w - - 0 1"]
[PlyCount "27"]
[EventDate "2017.??.??"]

1. Nc7+ Rbxc7 $1 2. bxc7 Kb7 $1 3. g5 $1 Rh7+ $1 (3... Kxc7 4. g6 Rf1 5. g7 Rg1
6. Kh6 h3 7. Kh7 d5 8. g8=Q Rxg8 9. Kxg8 Kd6 10. Kf7 h2 11. Re1 $1 d4 12. Kf6
$18) 4. Kg6 $1 (4. Kg4 $2 Kxc7 $1 5. g6 Rd7 $1 6. Kxh4 d5 7. Rg2 Rd8 $1 8. g7
Rg8 9. Kh5 Kd6 $1 10. Rg5 $1 Kc5 $1 $11) 4... Rxc7 5. Kh6 $1 (5. Kf6 $2 Rc3 $1
6. g6 Rf3+ 7. Ke6 Rg3 8. Kf7 Rf3+ 9. Kg8 Rg3 10. g7 Kc6 $1 11. Kh7 Kc5 $1 12.
Re3 Rg2 $1 13. g8=Q Rxg8 14. Kxg8 d5 $11) 5... Rc4 $1 6. g6 Kc6 $1 7. g7 Rg4 8.
Re4 $1 (8. Kh7 $2 Kc5 9. g8=Q Rxg8 10. Kxg8 d5 $11) (8. Re1 $2 h3 $1 9. Kh7
Rh4+ $1 10. Kg6 Rg4+ $1 11. Kf7 Rf4+ $1 12. Ke6 Rg4 {positional draw}) 8... Rg3
$1 9. Re1 $3 ({Logical try 1} 9. Kh7 $2 Kc5 $1 10. Re6 h3 $11 {(bK on c5)}) ({
Logical try 2} 9. Re8 $2 h3 $1 {(bK on c6)} 10. g8=Q Rxg8 11. Rxg8 h2 12. Rc8+
Kd5 13. Rc1 Ke4 14. Kg5 Kf3 $11) (9. Re2 $2 Kd5 10. Kh7 h3 11. g8=Q+ Rxg8 12.
Kxg8 Kc4 $1 13. Kf7 d5 14. Ke6 d4 15. Ke5 d3 $11) (9. Rxh4 $2 Kd5 $1 10. Rh5+
Ke6 11. Kh7 Kf7 12. Rf5+ Ke6 13. Rf3 Rg2 14. g8=Q+ Rxg8 15. Kxg8 d5 $1 $11)
9... Kd5 $1 ({main} 9... Kc5 10. Re8 h3 {compare with logical try 2, bK on c5}
11. g8=Q Rxg8 12. Rxg8 h2 13. Rg5+ d5 14. Rh5 Kd4 15. Kg5 $1 Ke4 16. Kg4 d4 17.
Kg3 $18) 10. Kh7 Kd4 11. Re6 $1 (11. g8=Q $2 Rxg8 12. Kxg8 d5 $1 13. Kf7 Kc3 $1
14. Ke6 d4 $11) 11... h3 $1 {compare with logical try 1, bK on d4} 12. Rxd6+
Ke5 (12... Ke3 13. Rf6 $1 $18) 13. Rh6 $1 Kf5 (13... Kf4 14. Rf6+ $1 $18) 14.
Rh4 $1 {Judge Sergey Osintsev: "An excellent two-line logical study!"} 1-0

[Event "Mircea Pavlov 80 JT"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "González, Luis Miguel"]
[Black "3rd honourable mention"]
[Result "1-0"]
[SetUp "1"]
[FEN "K1k5/1R6/3R4/5p2/2p5/8/6q1/1N6 w - - 0 1"]
[PlyCount "31"]
[EventDate "2017.??.??"]

1. Rdb6 $1 (1. Rdd7 $2 Qc6 $1 ({but not} 1... Qa2+ $2 2. Ra7 Qg2+ 3. Rdb7 $1 {
lead to the main line}) 2. Rg7 Qa6+ 3. Ra7 Qc6+ 4. Rgb7 f4 5. Nc3 f3 6. Na4 f2
7. Nb6+ Kd8 8. Ra1 c3 $11) 1... Qa2+ $1 (1... Qd5 2. Rb5 Qd3 3. Rc5+ Kd8 4. Kb8
Qd6+ 5. Rcc7 f4 6. Nc3 f3 7. Nb5 Qe5 8. Ka8 Qd5 9. Rh7 $18) 2. Ra7 Qg2+ 3. Rbb7
Qc6 $1 4. Nc3 $1 (4. Na3 $2 c3 $1 5. Nc2 f4 6. Nd4 Qe4 7. Nb5 Qc6 8. Nxc3 f3 $1
9. Na4 f2 10. Nb6+ Kd8 11. Ra1 Qf3 $11) 4... f4 $1 5. Na4 $1 c3 6. Nb6+ $1 (6.
Nxc3 $2 f3 $1 $11) 6... Kd8 7. Ra1 $1 (7. Ra4 $2 c2 $1 $11) 7... c2 8. Rg1 $1
Qe6 9. Rgg7 $3 (9. Rh1 $2 Qa2+ $1 10. Kb8 (10. Ra7 Qb2 11. Rg1 Qb3 $1 12. Rd7+
Ke8 13. Kb7 Qg3 $11) 10... Qb2 11. Re1 Qd4 12. Rd7+ Qxd7 13. Nxd7 Kxd7 $11)
9... Qa2+ 10. Kb8 Qe6 $1 (10... c1=Q 11. Rbd7+ $1 Ke8 12. Rge7+ Kf8 13. Rh7 $1
Qcd2 14. Rh8+ $18) 11. Rgd7+ $1 Ke8 12. Rdc7 Qd6 (12... f3 13. Rxc2 f2 14. Rxf2
Qd6+ 15. Ka8 Qa3+ 16. Ra7 Qd6 17. Re2+ Kf8 18. Rc2 $18) 13. Nc8 $1 (13. Nc4 $2
Qd8+ 14. Ka7 Qxc7 $1 15. Rxc7 Kd8 $1 $11) (13. Ka8 $2 Qa3+ 14. Na4 Kd8 $1 15.
Rd7+ Ke8 16. Rdc7 Kd8 $11 {positional draw}) 13... Qe5 $1 14. Ka8 $1 Qa1+ 15.
Na7 c1=Q 16. Rb8# {Judge John Nunn: "A long and complex study in which White
struggles to unpin his rook to deliver mate on the back rank. The highlight is
the manoeuver of the rook from a7 to a1, g1 and g7, by which White reverses
the arrangement of rooks along the seventh rank. However, the study lacks a
central point and the end comes more or less by chance when, finally, white
manages to use his knight to shield his king"} 1-0

