[Event "?"]
[Site "?"]
[Date "2017.12.31"]
[Round "?"]
[White "STUDIES - WIN"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/8/4k3/8/8/4K3/8/8 w - - 0 1"]
[PlyCount "0"]
[EventDate "2017.??.??"]

{300MB, Fritz10.ctg, ORDENADOR}  1-0

[Event "1st Prize JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.06.24"]
[Round "?"]
[White "Pavel Arestov"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/8/2p5/2K2NB1/6R1/8/7q/3k4 w - - 0 1"]
[PlyCount "25"]
[EventDate "2017.??.??"]

1. Ne3+ Ke2 (1... Kc1 2. Nf1+ $18) (1... Ke1 2. Bh4+ Ke2 3. Rg2+ $18) 2. Rg2+
Ke1 3. Nc2+ (3. Rxh2 $2 {stalemate}) (3. Kc4 $2 Qh7 4. Nc2+ Kf1 5. Ne3+ Ke1 $11
) 3... Kd1 (3... Kf1 4. Rxh2 $18) 4. Kc4 (4. Rxh2 $2 {stalemate}) 4... c5 (4...
Qxg2 5. Ne3+ $18) (4... Qb8 5. Rd2+ Kc1 6. Rd8+ $18) 5. Ne3+ (5. Rxh2 $2 {
stalemate}) 5... Ke1 6. Kb3 (6. Rxh2 $2 {stalemate}) (6. Kc3 $2 Qe5+ 7. Kc2
Qe4+ $11) 6... Qb8+ (6... Qh7 7. Ka2 Qa7+ 8. Kb1 Qb6+ 9. Kc1 Qb4 10. Nc2+ $18)
7. Ka2 (7. Kc2 $2 Qb4 $11) 7... Qa7+ (7... Qb4 8. Nc2+ $18) (7... Qe5 8. Bh4+
$18) 8. Kb1 (8. Kb2 $2 Qa4 $11) 8... Qa4 (8... Qb6+ 9. Kc1 Qb4 10. Nc2+ Kf1 11.
Nxb4 $18) 9. Rb2 (9. Nc2+ $1 Kf1 10. Ne3+ Ke1 $11) 9... Qe4+ 10. Kc1 (10. Ka1
$2 Qa4+ 11. Kb1 Qe4+) ({or} 10. Rc2 $2 Qb4+ 11. Rb2 Qe4+ {is loss of time})
10... Qa4 (10... c4 11. Bh4+ Qxh4 12. Ng2+ $18) 11. Bh4+ Qxh4 12. Ng2+ Kf1 13.
Nxh4 $18 1-0

[Event "2nd Prize JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.06.08"]
[Round "?"]
[White "Marco Campioli"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "3B4/4P3/b1p4P/1n2P3/Pk6/b4p2/K7/8 w - - 0 1"]
[PlyCount "41"]
[EventDate "2017.??.??"]

1. Ba5+ $1 (1. axb5 $2 f2 $1 2. e8=Q f1=Q 3. Qe7+ c5 4. Qh4+ Kxb5 $11) (1. e8=Q
$2 Nc3+ $19) 1... Kxa4 (1... Kxa5 2. e8=Q f2 3. Qf7 Kxa4 4. Qf4+ Bb4 5. Qxf2
Nc3+ 6. Ka1 Bd3 7. Qd4 Be4 8. Qc4 Bd5 9. Qa6+ $18) 2. e8=Q Nd4 (2... f2 3. Qf7
Nd4 4. Qxf2 {see the line main}) 3. Qf7 $1 (3. Qh5 $2 Bc4+ 4. Kb1 Bd3+ 5. Ka2
$11) (3. Qa8 Bc4+ 4. Kb1 Bd3+ $11) 3... f2 $1 4. Qxf2 (4. h7 $2 f1=Q 5. Qxf1
Bxf1 6. h8=Q Bc4+ $11) 4... Bc4+ 5. Ka1 $1 (5. Kb1 $2 Bd3+ 6. Ka2 Bc4+ 7. Ka1 {
similar to line main}) 5... Nb3+ 6. Kb1 $1 (6. Ka2 $2 Nxa5+ 7. Kb1 Bd3+ $11)
6... Bd3+ 7. Qc2 $1 Bxc2+ 8. Kxc2 Nd4+ $1 (8... Bf8 9. h7 Bg7 10. Bc3 Nc5 11.
e6 $1 Nxe6 12. Bxg7 $18) 9. Kd3 $1 (9. Kc3 $2 Nb5+ $1 10. Kd3 Bf8 11. Bd2 Bxh6
$11) 9... Nf3 $1 (9... Bf8 10. h7 Bg7 11. Kxd4 Kxa5 12. Ke4 $1 c5 13. e6 $18)
10. Bc7 $1 (10. Bc3 $2 Ng5 $1 $11) (10. e6 $2 Kxa5 11. h7 Ne5+ $1 12. Ke4 Ng6
$19) 10... Ng5 11. Bd8 $1 Nf7 $1 (11... Nh7 12. e6 $18) 12. h7 (12. e6 $2 Nxh6
$11) 12... Nxe5+ (12... Bb2 13. e6 Nxd8 14. e7 $18) 13. Ke4 Nf7 (13... Ng6 14.
Kf5 Bb2 15. Bf6 $18) 14. Bf6 $1 (14. Kf5 $2 Nxd8 15. h8=Q Nb7 16. Qd4+ Bb4 17.
Qa7+ Na5 $11) 14... Bb2 15. Kf5 $1 (15. Bxb2 $2 Ng5+ $11) 15... Kb3 (15... Bxf6
16. Kxf6 Nh8 17. Kg7 $18) 16. Bxb2 (16. Kg6 $2 Nh8+ 17. Kg7 Bxf6+ 18. Kxf6 c5
$11) 16... Kxb2 17. Kf6 {/g6} Nh8 18. Kg7 c5 19. Kxh8 c4 20. Kg8 $1 (20. Kg7 $2
c3 21. h8=Q c2 $11) 20... c3 21. h8=Q $18 {Meredith. Paradoxical move. Various
tries. Promotions to Queen. Sacrifices (both White and Black sacrifice pieces
and pawns). Perpetual check avoidances. Refusals to capture undefended pieces.
Fight to gain a tempo (in the final phase White refuses to capture immediately
a piece to gain a tempo). Fight to promote. Strong counter-play by Black. All
the pieces move. Theoretical win.} 1-0

[Event "3rd Prize JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Branislav Djurasevic"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/4K2p/8/p4P2/P1kB4/8/1P2b3/8 w - - 0 1"]
[PlyCount "41"]
[EventDate "2017.??.??"]

1. f6 $1 (1. Bc3 $2 Kb3 2. f6 Bc4 $1 $11 {Pawn h7 is now ready to run!}) 1...
Bh5 2. Bc3 (2. Bb6 $2 Kb4 $11) 2... Kb3 (2... Bg6 $2 3. f7 $18) 3. Bxa5 Kxa4 4.
Bc3 $1 {Preventive keep b2 pawn.} Kb3 $1 (4... Bg6 5. f7 $1 Bxf7 6. Kxf7 h5 7.
Ke6 h4 {And we reach position as in the study by Zakhodyakin, G., 64, (1934),
ID=68578 in hhdbv} 8. Kd5 h3 9. Kc4 h2 10. Bb4 h1=Q 11. b3#) 5. Kf8 $1 Bg6 (
5... Kc4 6. Kg8 $1 {Immeadiately lost a tempo} Bg6 7. Kg7 $18 {See the main
line}) 6. Kg7 Kc4 {zz Position A.} 7. Bd2 $1 Kb3 8. Bc1 Kb4 (8... Kc2 $2 9. b4
$18) (8... Kc4 $5 9. Bf4 Kb4 10. Bb8 {or 10. Bh2 tempo} Kc4 11. Bd6 {We reach
the same position as after 10.Bd6 in main variation}) 9. Bf4 $1 (9. Be3 $2 Kb3
10. Bd4 Kb4 $1 $11) 9... Kc4 (9... Kb3 $2 10. Be5 $1 $18 {As in the main
variation after 14th move.}) 10. Bd6 $1 (10. Be5 $2 Kb3 $1 {zz. Position B.})
10... Kd5 (10... Kd4 $2 11. f7 $1 $18) 11. Bb4 $1 Kd4 (11... Ke6 $2 12. Bc3 Be8
13. Kxh7 $18 {Two pawns up is technicaly win for white}) (11... Kc4 $2 12. Bc3
$1 $18) 12. Be1 $3 {The crucial and the fastest move for losing another tempo.}
(12. Ba5 $2 {Waste of time.} Kd5 13. f7 $2 Bxf7 14. Kxf7 h5 15. Kg6 h4 $11)
12... Kc4 (12... Kd5 $2 13. f7 $1 Bxf7 14. Kxf7 h5 15. Kg6 h4 16. Bxh4 $18) 13.
Bc3 $1 {zz. Position A1.} Kb3 (13... Kd5 14. f7 $1 Bxf7 15. Kxf7 h5 16. Bf6 $18
) 14. Be5 $1 {zz. Position B1. Bishop controls both b2 and h2.} Kc4 15. f7 $1
$18 {Finally this move works!} Bxf7 16. Kxf7 h5 17. Kg6 h4 18. Kg5 h3 19. Kg4
h2 20. Bxh2 Kb3 21. Be5 1-0

[Event "4th Prize JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.08.15"]
[Round "?"]
[White "Alexander Zhukov"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "3r2q1/5p1p/6P1/7N/6Nk/3Q1K2/P6P/8 w - - 0 1"]
[PlyCount "15"]
[EventDate "2017.??.??"]

1. Qe3 $1 (1. Qe2 $2 Qxg6 $11) 1... Qxg6 2. Ne5 $1 (2. Qe7+ Qg5 $11) 2... Qxh5+
(2... Qf5+ 3. Nf4 Rg8 4. Qc5 $18) 3. Kg2 $1 (3. Kf2 $2 Qf5+ $19) 3... Rg8+ (
3... Qg5+ 4. Qxg5+ Kxg5 5. Nxf7+ $18) (3... Rd2+ 4. Qxd2 Qxe5 5. Qh6+ Kg4 6.
h3+ Kf5 7. Qh5+ $18) 4. Qg3+ $3 (4. Kf2 $2 Qf5+ 5. Nf3+ Kh5 $19) 4... Rxg3+ 5.
hxg3+ Kg5 6. g4 $3 {domination} Qxg4+ (6... Qh4 7. Nf3+ $18) (6... Qh6 7. Nxf7+
$18) (6... Kf4 7. gxh5 Kxe5 8. Kf3 $1 $18) 7. Nxg4 Kxg4 8. a4 1-0

[Event "5th Prize JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.06.28"]
[Round "?"]
[White "Vladislav Tarasiuk"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/K1n5/8/7R/8/2p4R/4p3/3k4 w - - 0 1"]
[PlyCount "19"]
[EventDate "2017.??.??"]

1. Rd3+ Kc2 2. Re3 Kd1 $1 (2... Kd2 3. Rhe5 c2 4. Rxe2+ $18) 3. Rhe5 c2 4. Rxe2
Nb5+ 5. Kb7 $1 {With two lines: A)} ({Try :} 5. Ka6 $2 Nc3 6. Re1+ Kd2 7. R5e3
Na2 8. R1e2+ Kd1 9. Rg2 c1=Q $11) 5... Nd6+ ({B)} 5... Nc3 6. Re1+ Kd2 7. R5e3
Na2 8. R1e2+ Kd1 9. Rg2 $3 ({Try :} 9. Rh2 $2 c1=Q 10. Rg3 Qc5 $1 $11) 9...
c1=Q 10. Rh3 Qb1+ 11. Ka7 $1 (11. Kc7 $2 Qc2+ $1 12. Rxc2 Kxc2 $11) 11... Qb4
12. Rh1+ $18) 6. Kb8 $3 c1=Q 7. Re1+ Kd2 8. Rxc1 Kxc1 9. Kc7 $1 Nc4 10. Rc5 $18
1-0

[Event "6th Prize JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Darko Hlebec"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "2Nr4/6Pk/4Q1nP/3P4/4Kp2/7N/q3P3/8 w - - 0 1"]
[PlyCount "15"]
[EventDate "2016.??.??"]

1. Kf5 $1 (1. Ng5+ $2 Kxh6 2. Nf7+ Kxg7 3. Nxd8 Qb1+ 4. Kd4 Qb4+ $11) 1...
Rxd5+ (1... Qxd5+ 2. Qxd5 Rxd5+ 3. Kf6 f3 4. exf3 Rh5 5. Ng5+ Rxg5 6. Kxg5 Ne7
7. Nd6 $18) 2. Kg4 Ne5+ 3. Kh4 Nf3+ $1 (3... Ng6+ 4. Qxg6+ $1 Kxg6 5. g8=Q+ $18
) 4. exf3 Rh5+ (4... Qf2+ 5. Nxf2 Rh5+ $5 6. Kg4 $18) 5. Kxh5 Qd5+ $1 (5...
Qxe6 6. Ng5+ $18) 6. Qf5+ $3 (6. Ng5+ $2 Qxg5+ 7. Kxg5 $11 {stalemate}) (6. Kh4
$2 Qh5+ $1 7. Kxh5 {stalemate}) (6. Qxd5 $2 {stalemate}) (6. Qe5 $2 Qxe5+ 7.
Ng5+ Kg8 8. Nd6 $1 Qe1 9. Ndf7 Qh4+ 10. Kg6 Qh5+ 11. Kf6 Qg6+ 12. Kxg6 $11 {
stalemate}) 6... Qxf5+ 7. Ng5+ Kg8 8. Ne7# 1-0

[Event "1st Sp. Prize JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Arpad Rusz"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/2R4B/4k3/3n2K1/1Pp2rN1/2Pb4/8/8 w - - 0 1"]
[PlyCount "77"]
[EventDate "2017.??.??"]

1. Bg8+ (1. Rc6+ $2 Kd7 {In the following two variations black saves the game
by sacrificing the knight or the rook. This provides some comfort for the fact
that in the main line these two black pieces are captured on their initial
squares.} (1... Ke7 $2 2. Ne3 $1 {knight sacrifice} Nxe3 3. Kxf4 $18) 2. Rc5 (
2. Ne5+ Ke7 3. Nxd3 cxd3 4. Bxd3 Nxb4 $1 {knight sacrifice} (4... Rf3 $2 5. Be4
Rg3+ 6. Kh4 Rxc3 7. Bxd5 $18) 5. cxb4 Rxb4 $11) 2... Rxg4+ $1 {rook sacrifice}
3. Kxg4 Nf6+ 4. Kf4 Nxh7 (4... Bxh7 $2 5. Ke5 $1 Ng4+ 6. Kd4 $18) 5. b5 Nf8 $1
6. Ke5 Ng6+ 7. Kf6 Kd6 8. Rc6+ Kd7 9. Rc5 Kd6 {positional draw}) 1... Kd6 2.
Rc6+ $1 {rook sacrifice} (2. Bxd5 $2 Rf5+ 3. Kh4 Kxc7 $11) 2... Kxc6 3. Bxd5+
Kd6 $1 {The black king triangulates!} (3... Kxd5 4. Kxf4 {black is in zugzwang}
Be2 (4... Ke6 5. Ne5 Be2 6. Ke4 $18) 5. Ne3+ Ke6 6. Ke4 $18) 4. Kxf4 Kxd5 {
Cyclic zugzwang - WTM. In order to win, white must reach the same position but
with black to move. The shortest manoeuvre to pass the move to black lasts 35
moves! All moves from the cycle are unique optimal moves.} 5. Ne3+ (5. Nf2 $6
Be2 6. Kf5 $6 Bd3+ 7. Kf6 $2 Bc2 $1 8. Ke7 Ba4 $11) 5... Ke6 6. Nd1 Kd5 7. Nb2
{White threatens to bring the knight to c5.} Bc2 $1 8. Kg5 Bd3 (8... Ke4 9. Kf6
Kd5 10. Ke7 Bf5 11. Kd8 $18) 9. Kf6 (9. Na4 $2 Ke5 $11) 9... Kd6 {White should
bring the knight to a5 before he continues the king manoeuvre.} 10. Nd1 $1 ({
The shortest path to a5 via a4-c5-b7 doesn't work:} 10. Na4 $6 Be4 11. Nc5 Bc6
$1) ({If the king starts the manoeuvre too soon, its knight gets stuck on b2:} 
10. Kf7 $6 Bf1 11. Ke8 Be2 12. Kd8 Kc6 $1 13. Ke7 Kb5 $1 {Now, in order to win,
white has to free its knight...} 14. Ke6 Bg4+ 15. Ke5 Bf3 16. Kf4 Be2 17. Ke3
Bh5 18. Kd2 Bg6 19. Ke2 $1 {Quicker than the immediate 18. Nd1. It is better
to lure the bishop to f5 first using a triangulation.} Bh5+ 20. Ke3 Bg4 21. Kd2
Bf5 22. Nd1 {Now the knight is free but also the black king!} Kc6 23. Ke3 Kd5
24. Nb2 Bg6 25. Kf4 Bc2 {and we have returned to a previous position from the
main line}) 10... Be4 11. Ne3 Bd3 12. Ng4 Be2 13. Ne5 Bd3 14. Nf7+ Kd5 {This
move blocks the a8-h1 diagonal allowing the knight to go to b7.} (14... Kd7 15.
Ke5 $18) 15. Nd8 $1 Kd6 16. Nb7+ Kc7 17. Na5 $1 ({Moving immediately to c5 is
wrong:} 17. Nc5 $6 Kd6 {and the white king cannot move to f5.}) 17... Kd6 18.
Kf7 Kd7 19. Nb7 $1 {Black is in zugzwang!} Be2 ({The bishop cannot move to the
big diagonal:} 19... Be4 20. Nc5+ $18) 20. Kf6 Kc7 21. Nc5 Kd6 22. Kf5 {The
bishop was not on d3!} Kd5 23. Kf4 Bf1 {This is a new cyclic zuzgwang
position! White will lose a tempo by a square-shaped manoeuvre 
(Nc5-d7-f6-e4-c5) while the black king triangulates (Kd5-d6-e6-d5).} (23... Bd3
24. Nxd3 cxd3 25. Ke3 Kc4 26. Kd2 $18) 24. Nd7 ({It is to early to bring the
knight to a4:} 24. Na4 $2 Be2 25. Ke3 Bd3 {White is in zugzwang!} 26. Nb6+ Kc6
27. Nc8 Kc7 28. Ne7 Kd6 29. Ng8 Ke5) 24... Kd6 25. Nf6 Ke6 26. Ne4 Kd5 27. Nc5
Be2 28. Na4 $1 Bd3 29. Ke3 {Black is in zugzwang! The bishop has to leave the
good square from which it controls the b1-h7 diagonal.} Bf1 30. Nb6+ Ke5 ({In
the following variation we can see the drawback of leaving the b1-h7diagonal:} 
30... Kc6 31. Nc8 Kc7 32. Ne7 Kd6 33. Ng6 $1 Kd5 (33... Bd3 34. Nf4 $18) 34.
Kf2 Bd3 35. Nf4+ Ke4 36. Nxd3 Kxd3 37. b5 $18) 31. Kf3 $1 {This is a waiting
move to lure the bishop to d3!} ({The immediate Nd7 is refuted by Ke6.} 31.
Nd7+ $6 Ke6) 31... Bd3 32. Nd7+ Kd6 ({Ke6 is not that strong anymore:} 32...
Ke6 33. Nc5+ Kd5 34. Nxd3 cxd3 35. Ke3 Kc4 36. Kd2 $18) 33. Nc5 {By attacking
the bishop, white wins a crucial tempo. The black king cannot go back to the
fifth rank, so the bishop must control e4. That means it has to leave the
d3-f1 diagonal.} Bf5 {The bishop also takes under control the important d7
square.} 34. Kf4 $1 (34. Ke3 $6 {would throw away all the progress we have
done so far.} Ke5 {[%eval 32546,0]} 35. Na4 Bd7 36. Nb2 Be6 37. Kd2 Bd5 38. Nd1
Be4 39. Ne3 Bd3 40. Ng4+ Kf4 41. Nf6 Bf5 42. Nd5+ Ke4 43. Ne3 Be6 44. Nc2 Bg4
45. Nd4 Ke5 46. Kc1 Kd6 47. Kc2 Bh5 48. Nf5+ Ke5 49. Ne3 Bf7 50. Kb2 Ke4 51.
Nc2 Bh5 52. Nd4 Kd5 53. Ka3 Bd1 54. Nf5 Kc6 55. Ne3 Bb3 56. Kb2 Kc7 $1 57. Nf5
Ba4 58. Kc1 Kd7 59. Nh6 Kd6 60. Kd2 Ke5 61. Ke3 Bd1 62. Nf7+ Ke6 63. Ng5+ Ke5
64. Ne4 Bc2 65. Nd2 Bd3 66. Nf3+ Kd5 67. Nh2 Bc2 68. Kf4 Bb1 $1 69. Ng4 Bd3 {
and we have returned to the cyclic zugzwang position from the main line}) 34...
Bg6 35. Ke3 Kd5 (35... Ke5 36. Nd7+ {now that the bishop has left f5 this move
works} Kd5 37. Nb6+ $18) 36. Nd7 {The threat is Nb6+} Bd3 37. Nf6+ Ke5 38. Ng4+
Kd5 39. Kf4 {cyclic zugzwang - BTM} 1-0

[Event "2nd Sp. Prize JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Gady Costeff"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "k2N4/p2p4/PPp1pp2/3p2r1/3K3p/2BR4/8/6nb w - - 0 1"]
[PlyCount "19"]
[EventDate "2017.09.14"]

1. b7+ $1 Kb8 2. Ke3 {Threats: 3.Bb4 and 3.Bxf6} (2. Bb4 Rg4+ $19) 2... c5 $1 (
2... e5 3. Bb4 Kc7 4. Ne6+ dxe6 5. Bd6+ Kxd6 6. b8=Q+ Ke7 7. Qxa7+ $18) (2...
Rg3+ 3. Kd2 Nf3+ 4. Rxf3 Rxf3 5. Bb4 $18) 3. Bxf6 Rf5 4. Be7 d4+ $1 5. Kd2 Rd5
6. Bxh4 Nf3+ (6... c4 7. Rg3 Nf3+ 8. Kc1 Rb5 9. Rg8 Kc7 10. Nf7 Rxb7 11. Bg3+
Kb6 12. axb7 $18) 7. Rxf3 Bxf3 8. Bg3+ e5 $1 9. Nf7 d6 $1 10. Nd8 $18 {wins.
4-fold incarceration of the black rook.} 1-0

[Event "3rd Sp.Prize JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Djurasevic Joksimovic, Miljanic"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "r7/8/8/8/R3R3/PP1k4/1p6/3K4 w - - 0 1"]
[PlyCount "19"]
[EventDate "2017.??.??"]

1. Rad4+ $1 ({Thematic try:} 1. Red4+ $2 Kc3 (1... Ke3 2. Kc2 $18) 2. Rac4+ (2.
Rdc4+ $2 Kd3 $1 (2... Kxb3 $2 3. Rcb4+ $18) 3. Rd4+ Kc3 $10) 2... Kxb3 3. Rb4+
Kxa3 (3... Kc3 4. Rdc4+ Kd3 5. Rh4 $18) (3... Ka2 4. Rd2 $18) 4. Kc2 (4. Rb7
Rh8 (4... Ka2 $2 5. Rd2 $1 $18) 5. Kc2 Rc8+ $1 6. Kd2 Ka2 $1 $11) 4... Rc8+ 5.
Rdc4 (5. Kd2 Ka2 $1 6. Ra4+ Kb1 7. Re4 Rc1 8. Re1 Rxe1 9. Kxe1 Kc2 $10) (5.
Rbc4 Ka2 $1 $11) 5... b1=Q+ $1 (5... b1=B+ $2 6. Kc3 $1 Rxc4+ 7. Rxc4 $1 $18
Ka2 8. Ra4#) 6. Kxb1 Rb8 7. Rxb8 $10) (1. Re3+ $2 Kxe3 2. Kc2 Rxa4 3. bxa4 Kd4
$11) 1... Kc3 2. Rc4+ Kxb3 (2... Kd3 3. Red4+ Ke3 4. Kc2 $18) 3. Rb4+ Kxa3 (
3... Ka2 4. Re2 Rd8+ (4... Ka1 5. Rbxb2 $18) 5. Rd2 Rxd2+ 6. Kxd2 b1=Q 7. Rxb1
$18) (3... Kc3 4. Rec4+ Kd3 5. Rh4 $18) 4. Kc2 $1 ({Try:} 4. Rb7 $2 Ka2 $1 (
4... Rh8 $2 5. Ra7+ Kb3 6. Re3+ Kc4 7. Kc2 $18) 5. Re2 (5. Reb4 Rd8+ $1 (5...
Ka1 $2 6. Rxb2 Rd8+ 7. Rd2 $18)) 5... Rd8+ $1 (5... Ka1 $2 6. Rexb2 Rd8+ 7. Rd2
$18) 6. Ke1 Ka1 $1 7. Rexb2 (7. Rbxb2 Rd1+ $1 8. Kf2 Rf1+ 9. Ke3 Rf3+ 10. Ke4
Rf4+ $10) 7... Rd1+ $1 $10) (4. Kd2 $2 Ka2 $1 5. Ra4+ (5. Re1 Rh8 $11) 5...
Rxa4 6. Rxa4+ Kb3 $1 $11) 4... Rc8+ 5. Kd2 $1 ({Try:} 5. Rec4 $2 b1=Q+ $1 6.
Kxb1 Rb8 $1 $10) ({Try:} 5. Kd3 $2 Ka2 $1 6. Re2 Ka1 7. Ra4+ (7. Rexb2 Rc3+ $11
) 7... Kb1 8. Re1+ Rc1 9. Rae4 (9. Kd2 Rxe1 10. Kxe1 Kc2 $11) 9... Ka1 $10) (5.
Rbc4 $2 Ka2 $1 $11) 5... Ka2 (5... Rd8+ 6. Kc3 $1 Rc8+ 7. Rec4 Rxc4+ 8. Kxc4
Ka2 9. Ra4+ (9. Kc3 $2 b1=N+ $1 $10 (9... Ka1 10. Kc2 $18)) 9... Kb1 10. Kb3 $1
(10. Kc3 $2 Kc1 11. Rh4 b1=N+ $10) 10... Kc1 11. Rc4+ $1 $18) 6. Ra4+ Kb1 7.
Re1+ Rc1 8. Rae4 $1 (8. Rd1 $2 Rxd1+ 9. Kxd1 $11) (8. Ra8 $2 Rxe1 9. Kxe1 Kc2
$1 $11) 8... Rxe1 (8... Ka1 9. Rxc1+ $18) 9. Rxe1+ Ka2 10. Kc2 $18 1-0

[Event "1st HM JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.06.28"]
[Round "?"]
[White "Vladislav Tarasiuk"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/r2P4/n5P1/1R6/Kp1r4/8/R1P5/4k3 w - - 0 1"]
[PlyCount "27"]
[EventDate "2017.??.??"]

1. Re5+ $1 (1. g7 $2 Nc5#) 1... Kd1 $1 2. g7 b3+ $1 (2... Ra8 3. Re8 $18) 3.
Kxb3 Rb4+ 4. Ka3 $1 (4. Kc3 $2 Rc7+ 5. Kd3 Rxd7+ $11) 4... Rb8 5. d8=Q+ Rxd8 6.
Rd5+ $1 Rxd5 7. g8=Q Nc7+ $1 (7... Ra5+ 8. Kb2 Rb7+ 9. Kc3 $1 $18 (9. Ka1 $2
Rxa2+ 10. Qxa2 Nb4 $1 11. Qg8 Nxc2+ $11)) 8. Kb2 Rb5+ 9. Ka1 $1 (9. Kc3 $2 Rc5+
$11) 9... Rxa2+ 10. Qxa2 $1 (10. Kxa2 $2 Nd5 $1 11. Qg4+ Kxc2 12. Qe2+ Kc1 13.
Ka3 Nc3 $11) 10... Kc1 $1 11. c3 $3 ({Try :} 11. c4 $2 Rb8 12. Qa3+ Kc2 13.
Qa4+ Kc1 $1 14. Qa3+ Kc2 {positional draw}) 11... Rb8 12. Qa3+ Kc2 13. Qa4+ Kc1
14. Qf4+ $18 1-0

[Event "2nd HM JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "A. Skripnik & P. Arestov"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "4rq1k/8/2K2P1P/4R3/4p3/8/8/nBQ5 w - - 0 1"]
[PlyCount "17"]
[EventDate "2017.??.??"]

1. Qg5 $1 (1. Rxe8 $2 Qxe8+ 2. Kd6 Qd8+ 3. Ke5 Nb3 4. Qc6 (4. Qc3 Nd2 5. Ba2
Kh7 $1 6. Qc6 Nf3+ 7. Kxe4 Qd4+ 8. Kxf3 Qxf6+ 9. Qxf6 {stalemate=}) 4... Nd2 5.
Kf5 Nf3 6. Qxe4 Qa5+ 7. Kg4 Ne5+ 8. Kh4 Ng6+ 9. Qxg6 Qg5+ 10. Kxg5 {stalemate=}
) 1... Rc8+ 2. Kd5 Qf7+ 3. Kxe4 Rg8 (3... Qc4+ 4. Ke3 $1 Qc1+ 5. Kf2 Qxg5 6.
Rxg5 Rf8 7. Rg6 {(Rf5)+_}) 4. Qg7+ $1 (4. Qf5 $2 Qc4+ 5. Ke3 Qc1+ {=}) 4...
Rxg7 5. hxg7+ (5. fxg7+ Kh7 6. Rg5 Qg8 {=}) 5... Kh7 (5... Kg8 6. Ba2 $1 Qxa2
7. Re8+ Kh7 8. Rh8+ Kg6 9. g8=Q+ Qxg8 10. Rxg8+ $18) 6. Rh5+ $1 (6. Kf4+ $2 Kh6
{=}) 6... Qxh5 (6... Kg6 7. Rh8 $1 Kxf6 8. g8=Q $18) 7. Kf4+ Nc2 8. Bxc2+ Kh6
9. g8=N# (9. g8=Q $2 Qg4+ 10. Qxg4 {stalemate=}) 1-0

[Event "3rd HM JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "D.Gurgenidze & M.Minski"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/kpp3Q1/P7/1P6/KP6/1P6/p7/4b2r w - - 0 1"]
[PlyCount "11"]
[EventDate "2017.??.??"]

1. b6+ $1 Kxa6 (1... Kxb6 2. Qd4+ Kxa6 3. b5# {model mate}) (1... cxb6 2. Qxb7#
) 2. bxc7 {mainline A:} Bf2 ({mainline B:} 2... Bc3 3. Qg6+ Ka7 4. Kb5 $1 {(5.
Qb6+)} Bd4 5. c8=N+ $1 (5. c8=Q $2 a1=Q $11) 5... Kb8 6. Nd6 a1=Q 7. Qe8+ Ka7 (
7... Kc7 8. Qe7+) 8. Nc8+ {switchback} Kb8 9. Nb6+ Ka7 10. Qa8#) 3. Qf6+ $1 ({
thematic try} 3. Qa1 $6 Rxa1 4. c8=N {position X with bBf2} b5+ {/b6-+}) 3...
Bb6 4. Qa1 $3 Rxa1 5. c8=N $1 {position X with bBb6} (5. c8=Q $2 Rd1 $19) 5...
Bf2 6. b5# {model mate} 1-0

[Event "4th HM JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "S. Nielsen & M. Minski"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "5k2/6p1/pP4P1/6bK/P1pr2B1/7p/1PR4n/8 w - - 0 1"]
[PlyCount "17"]
[EventDate "2017.??.??"]

1. b7 (1. Rf2+ $2 Bf6 2. b7 Rd8 $11) 1... Rd5 $1 2. Be6 $1 (2. b8=Q+ $4 Bd8+ 3.
Bf5 Rxf5#) (2. Rf2+ $2 Bf6+ 3. Bf5 Rd8 $1 4. Rxh2 Ke7 5. Bc8 (5. Re2+ Kd6 6.
Bxh3 Kc7 $11) 5... Rd5+ 6. Kg4 Rd4+ 7. Kxh3 Rh4+ 8. Kg3 Be5+ 9. Kxh4 Bxh2 $11)
2... Ra5 $1 {critical move, passing over the square b5} 3. Rf2+ (3. Bxc4 Bf4+
$11) 3... Bf6+ (3... Bf4+ 4. Kh4 $18) 4. Bf5 {unpin of Bf6} Be5 {unpin of Bf5}
5. Bxh3+ Bf6+ 6. Bf5 {unpin of Bf6} Be5 {unpin of Bf5} 7. b4 $1 (7. Bd7+ $2 Ke7
$1 $11) 7... cxb3 8. Bd3+ Bf6+ (8... Ke7 9. Rf5 b2 10. b8=Q Bxb8 11. Rxa5 $18)
9. Bb5 $18 {and the mousetrap is closed!} 1-0

[Event "5th HM JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.05.24"]
[Round "?"]
[White "Alexey Popov"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "2kr4/pR6/P1P1K3/1P6/8/1pB5/2p1p3/8 w - - 0 1"]
[PlyCount "31"]
[EventDate "2017.??.??"]

1. b6 $1 (1. Rxa7 $2 e1=Q+ 2. Bxe1 Re8+ 3. Kd6 Rd8+ 4. Ke7 Re8+ 5. Kxe8 c1=Q 6.
Ra8+ Kc7 7. Ba5+ Kd6 8. Rd8+ Ke6 9. c7 b2 10. c8=Q+ Qxc8 11. Rxc8 b1=Q $13)
1... e1=Q+ 2. Bxe1 Rd6+ (2... c1=Q 3. Rb8+ Kxb8 4. Bg3+ $18) 3. Kxd6 c1=Q 4.
Rc7+ $1 (4. Rb8+ $2 Kxb8 5. c7+ Qxc7+ 6. bxc7+ Kc8 7. Bc3 b2 8. Bxb2 {stalemate
}) 4... Kb8 5. Rc8+ Kxc8 6. b7+ Kb8 7. Bg3 Qc3 8. Be5 Qa5 9. Ke6+ Qxe5+ 10.
Kxe5 Kc7 (10... b2 11. Kd6 b1=Q 12. c7#) 11. Ke6 b2 12. b8=Q+ (12. b8=R) 12...
Kxb8 13. Kd7 b1=Q 14. c7+ Ka8 15. c8=Q+ Qb8 16. Qc6+ $18 1-0

[Event "Sp. HM JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Luis Miguel González"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/P3PPPP/3k2P1/4p3/6P1/2K2pp1/pp1p1pp1/8 w - - 0 1"]
[PlyCount "49"]
[EventDate "2016.??.??"]

1. e8=N+ $1 Kd7 2. f8=N+ $1 Ke7 3. g8=N+ $1 Kxf8 4. g7+ $1 (4. a8=Q $2 {(or
h8Q?)} d1=N+ $1 5. Kb4 b1=Q+ 6. Kc5 Qc2+ 7. Kd6 Qd3+ 8. Kc7 Qc4+ $1 $11) 4...
Kf7 5. Nh6+ (5. a8=Q $2 d1=N+ $1 6. Kb4 b1=Q+ $11) 5... Ke7 6. Nf5+ (6. g8=N+
$2 Ke6 $1 7. a8=Q d1=N+ $1 8. Kb4 b1=Q+ 9. Kc5 Qb5+ $1 10. Kxb5 f1=Q+ $19) 6...
Kd7 7. Nf6+ $1 (7. a8=Q $2 d1=N+ $1 8. Kd2 f1=N+ $1 9. Ke1 f2+ 10. Ke2 g1=N+ $1
$19) 7... Kc7 8. Nd5+ $1 (8. g8=Q $2 d1=N+ $1 9. Kd2 (9. Kc4 f1=Q+ 10. Kd5 Nc3+
11. Ke6 Qa6+ 12. Kf7 b1=Q $19) 9... f1=N+ $1 10. Ke1 f2+ 11. Ke2 Nc3+ 12. Kf3
Nd2+ 13. Kxg3 g1=Q+ 14. Kh4 Qh1+ 15. Kg5 b1=Q $19) (8. a8=Q $2 d1=N+ $1 9. Kd2
f1=N+ $1 10. Ke1 f2+ 11. Ke2 Nc3+ 12. Kf3 Nd2+ 13. Kxg3 g1=Q+ 14. Kh4 a1=Q $19)
8... Kd7 9. g8=Q $1 (9. Nb6+ $2 Kc7 10. g8=Q (10. Nd5+ Kd7 {loses time}) 10...
d1=N+ $1 11. Kc4 f1=Q+ 12. Kd5 Qb5+ 13. Ke6 Qxb6+ $19) (9. a8=Q $2 d1=N+ $1 10.
Kb4 (10. Kd2 f1=N+ 11. Ke1 f2+ 12. Ke2 Nc3+ 13. Nxc3 g1=N+ $1 $19) 10... b1=Q+
11. Kc5 Qc2+ $11) (9. h8=Q $2 d1=N+ $1 10. Kd2 f1=N+ $1 11. Ke1 f2+ 12. Ke2
Nc3+ 13. Kf3 Nh2+ 14. Kxg3 g1=Q+ 15. Kh4 Qxg4#) 9... d1=N+ $1 10. Kd2 $1 f1=N+
$1 11. Ke1 f2+ 12. Ke2 Nc3+ ({main} 12... g1=N+ 13. Kxf1 $18) 13. Kf3 $1 (13.
Nxc3 $2 g1=N+ $1 14. Kd3 b1=Q+ 15. Kc4 Nd2+ 16. Kc5 Ne4+ $1 $19 17. Nxe4 Qc2+
18. Qc4 Qxc4+ 19. Kxc4 f1=Q+) 13... Nh2+ $1 (13... Nd2+ 14. Kxg3 g1=Q+ 15. Kh4
Qh2+ (15... Qh1+ 16. Kg5 Nde4+ $1 ({or} 16... Nce4+) 17. Kg6 a1=Q 18. Nb4 $1
Qxa7 19. Qf7+ Kc8 20. Qxa7 $18) 16. Kg5 a1=Q 17. Qf7+ $1 Kc6 18. Qe6+ Kb5 19.
Nxc3+ Kb4 20. Nd5+ Kb5 (20... Kc4 21. Nf4+ Kc3 22. Qxe5+ Kb4 23. Qe7+ Kc3 24.
Qe3+ Kb4 25. Nd5+ $19) 21. Qb6+ Kc4 22. Nde3+ Kd3 23. Qb5+ Kc3 24. Nd5+ Kc2 25.
Nfe3+ Kc1 26. Qc5+ Nc4 27. Qxc4+ Kd2 28. Qc2+ $18) (13... g1=N+ 14. Kg2 $19)
14. Kxg3 $1 (14. Kxg2 $2 f1=Q+ $1 15. Kxg3 Ne4+ 16. Kh4 Nf3+ 17. Kh5 Qh3+ 18.
Kg6 Qxg4+ 19. Kh6 Qh3+ $1 20. Kg7 a1=Q $1 21. Qf7+ Kc6 $1 $11) 14... g1=Q+ 15.
Kh4 Nf3+ $1 (15... Qxg4+ 16. Qxg4 Nxg4 17. a8=Q f1=Q 18. h8=Q Qf2+ 19. Kxg4
Qxf5+ 20. Kxf5 b1=Q+ 21. Kg5 Ne4+ 22. Kh6 Qh1+ 23. Kg7 Qg2+ 24. Kf7 $18) 16.
Kh5 Qh1+ $1 17. Kg6 Nh4+ 18. Kg7 $1 (18. Nxh4 $2 b1=Q+ $1 $19) 18... Nxf5+ 19.
gxf5 Qg2+ 20. Kf8 $1 Qxd5 21. Qxd5+ Nxd5 22. a8=Q $1 b1=Q 23. Qxd5+ Kc7 24.
Qxe5+ Kb7 25. h8=Q {Six Knigth promotions (3 W+3 B) in a pawn study} 1-0

[Event "Comm.  JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Árpád  Rusz"]
[Black "."]
[Result "1-0"]
[SetUp "1"]
[FEN "8/3N4/2p5/p4k2/3K4/7p/3P4/B7 w - - 0 1"]
[PlyCount "33"]
[EventDate "2016.??.??"]

1. Nc5 $1 h2 2. Ne4 Kf4 (2... h1=Q 3. Ng3+ $18) 3. Nf2 Kf3 4. Nh1 Kg2 5. Ke3
Kxh1 6. Kf2 c5 7. d3 a4 8. Bb2 c4 (8... a3 9. Bxa3 c4 10. d4 $1 (10. dxc4 $2 {
stalemate}) 10... c3 11. Bc1 $1 {echo} c2 12. Kg3 Kg1 13. Be3+ Kh1 14. Kh3 $1
c1=Q 15. Bxc1 Kg1 16. Be3+ Kh1 17. Bf4 Kg1 18. Bxh2+ $18) 9. dxc4 (9. d4 $2 c3
$1 10. Bxc3 a3 11. Ba1 a2 12. d5 $11 {stalemate}) 9... a3 10. Ba1 $1 {echo} (
10. Bxa3 $2 {stalemate}) 10... a2 11. Kg3 Kg1 12. Bd4+ Kh1 13. Kh3 $1 (13. c5
a1=Q 14. Bxa1 Kg1 15. Bd4+ Kh1 $1 $11) 13... a1=Q 14. Bxa1 Kg1 15. Bd4+ Kh1 16.
Be5 Kg1 17. Bxh2+ $18 1-0

[Event "Comm.  JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2016.??.??"]
[Round "?"]
[White "Michal Hlinka & Luboš Kekely"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/B7/8/1Q5n/6q1/7k/1N1pR1r1/K7 w - - 0 1"]
[PlyCount "31"]
[EventDate "2016.??.??"]

1. Bf2 $1 (1. Qd3+ $2 Ng3 2. Rxg2 Kxg2 3. Qxd2+ Qe2 $1 $11) 1... Rxf2 $1 (1...
Ng3 2. Rxd2 Qf5 3. Qxf5+ Nxf5 4. Nd3 $18) (1... Qg5 2. Qxg5 Rxg5 3. Rxd2 $18)
2. Rxf2 d1=Q+ 3. Nxd1 Qd4+ $1 (3... Qxd1+ 4. Ka2 $18 {zz as main line}) 4. Kb1
$1 ({them. try} 4. Ka2 $2 Qxd1 {zz} 5. Qf5+ Kg3 $11) (4. Nc3 $2 Qxf2 5. Qxh5+
Kg2 $11) (4. Rb2 $2 Qxd1+ 5. Rb1 Qd4+ $11) 4... Qxd1+ 5. Ka2 $1 {zz} Kg3 (5...
Ng3 6. Qc6 Qg4 7. Ka3 Qd4 8. Qe6+ Kh4 9. Rh2+ Kg5 10. Qg8+ $18) (5... Qg4 6.
Qf1+ Kh4 7. Rh2+ Kg5 8. Rg2 Ng3 9. Qb5+ Kf6 10. Qb6+ Kg5 11. Qd8+ Kf5 12. Rf2+
Ke4 13. Qe7+ Kd3 14. Qd6+ Ke4 15. Qb4+ $18) (5... Kg4 6. Qc4+ Kg5 7. Qg8+ Kh6
8. Qf8+ Kg5 9. Rg2+ Kh4 10. Qf2+ Kh3 11. Rh2+ Kg4 12. Qh4+ $18) 6. Rb2 Kg4 (
6... Nf4 7. Qg5+ Kh3 8. Rb3+ Nd3 9. Qf5+ $18) 7. Qc4+ (7. Rb4+ $2 Nf4 $11) 7...
Nf4 8. Qg8+ Kf5 (8... Kh4 9. Qg3+ $18) 9. Rb5+ (9. Qf7+ {or Qf8+} Kg4 10. Qg8+
Kf5 11. Rb5+ $18 {is only waste of time}) (9. Qh7+ Kf6 10. Qh6+ Kf5 11. Qf8+
Kg4 12. Qg8+ Kf5 13. Rb5+ $18 {is only waste of time}) 9... Ke4 10. Rb4+ (10.
Qe8+ Kf3 11. Rb3+ Kg4 12. Qg8+ Kf5 13. Rb5+ Ke4 14. Rb4+ $18 {is only waste of
time}) 10... Kf3 (10... Ke3 11. Qg3+ Qf3 12. Rb3+ $18) 11. Rb3+ Nd3 (11... Ke4
12. Qh7+ Kd4 13. Qa7+ Ke5 14. Re3+ Kf5 15. Qf7+ Kg5 16. Qg7+ Ng6 17. Re5+ Kf4
18. Qf6+ $18) 12. Qd5+ Ke3 13. Qe5+ Kd2 (13... Kf2 14. Qd4+ $18) 14. Qg5+ (14.
Qa5+ Ke3 15. Qe5+ Kd2 16. Qg5+ $18 {is only waste of time}) 14... Kc2 (14...
Ke1 15. Qg1+ $18) (14... Ke2 15. Qg4+ $18) 15. Qf5 $1 (15. Qg2+ $2 Qd2 $11)
15... Qd2 {or Qe2} 16. Rb2+ {and wins. Meredith. Reciprocal zugzwangs.} 1-0

[Event "Sp.Comm.  JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.09.21"]
[Round "?"]
[White "Wielfried Neef"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "4K3/1pk5/2r5/5Q2/8/8/8/8 w - - 0 1"]
[PlyCount "9"]
[EventDate "2017.??.??"]

1. Qf4+ $1 (1. Qe5+ $2) 1... Kc8 2. Qe5 {reciprocal Zugzwmang} Ra6 3. Ke7 Rc6
4. Qh8+ Kc7 5. Qd8# 1-0

[Event "?"]
[Site "?"]
[Date "2017.12.31"]
[Round "?"]
[White "ESTUDIES -DRAW"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/8/4k3/8/8/4K3/8/8 w - - 0 1"]
[PlyCount "0"]
[EventDate "2017.??.??"]

{300MB, Fritz10.ctg, ORDENADOR}  1/2-1/2

[Event "1st Prize  JT50 P.Krug Sec.B"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Amatzia Avni & Yochanan Afek"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "1R5n/7k/4p1p1/6Kp/1n2N2P/8/6p1/8 w - - 0 1"]
[PlyCount "25"]
[EventDate "2017.??.??"]

1. Rb7+ $1 (1. Nf6+ $2 Kg7 2. Ne8+ Kf7 3. Nd6+ Ke7 4. Nc8+ Kd7 $19) 1... Nf7+
$1 (1... Kg8 2. Nf6+ Kf8 3. Nh7+ {(d7)} Ke8 4. Nf6+ Kd8 5. Rd7+ Kc8 6. Rd1 $11)
2. Kf6 $1 (2. Rxf7+ Kg8 $19) 2... Nd5+ 3. Kxf7 g1=Q 4. Ng5+ Kh6 5. Kg8 $1 Nf6+
6. Kh8 Qxg5 7. Rg7 $3 (7. hxg5+ Kxg5 $19 {After the text, despite black's huge
material advantage he is unable to win}) 7... e5 (7... Qf5 8. Rxg6+ $1 $11) 8.
hxg5+ Kxg5 9. Rxg6+ $1 Kf5 (9... Kxg6 {stalemate}) 10. Rh6 Kg5 11. Rg6+ Kf5 12.
Rh6 e4 13. Kg7 $1 $11 1/2-1/2

[Event "2nd Prize  JT50 P.Krug Sec.B"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Vladislav Tarasiuk"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "6B1/4N1pP/1b6/7R/5P2/4pb2/2Kp1k2/8 w - - 0 1"]
[PlyCount "27"]
[EventDate "2015.??.??"]

1. Rd5 $1 (1. Rh2+ $2 Ke1 2. h8=Q d1=Q+ 3. Kc3 Qa1+ {(d4) -+}) 1... Be4+ $1 (
1... Bxd5 2. Nxd5 e2 3. Nc3 $1 Ke1 4. h8=Q d1=Q+ 5. Nxd1 exd1=Q+ 6. Kc3 $11) 2.
Kc3 $1 (2. Kb2 $2 Bxd5 3. h8=Q Bd4+ $1 4. Ka3 Bc5+ $1 5. Kb2 Bxe7 6. Qh2+ Bg2
7. Bd5 d1=Q 8. Qxg2+ Ke1 9. Qg1+ Kd2 $19) 2... Bxh7 3. Rxd2+ $1 (3. Bxh7 $2 e2
4. Rxd2 Ba5+ $19) 3... exd2 4. Kxd2 Ba5+ $1 5. Kc1 $3 ({Thematic try:} 5. Kd1
$2 Bxg8 6. Nxg8 Bd8 $1 {zz} 7. Kd2 Bh4 $1 8. Kd3 Kf3 9. Kd2 (9. f5 Bg5 $1 10.
Kd4 Kf4 11. f6 Bxf6+ $1 $19) 9... Kxf4 10. Nh6 gxh6 11. Ke2 Kg3 $1 12. Kf1 Kh2
$19) 5... Bxg8 6. Nxg8 Bd8 7. Kd1 $1 {zz} (7. Kd2 $2 Bh4 8. Kd3 Kf3 $19 {see
Try}) 7... Bh4 $1 8. Kd2 Kf3 9. f5 Kf4 10. Ke2 $1 (10. Kd3 $2 Bg5 $1 11. Ke2
Kxf5 $19) 10... Bg5 $1 11. f6 $1 Bxf6 12. Nh6 $1 gxh6 13. Kf1 {(f2)} Bd4 14.
Kg2 {draw.} 1/2-1/2

[Event "3rd Prize  JT50 P.Krug Sec.B"]
[Site "?"]
[Date "2017.06.28"]
[Round "?"]
[White "Pavel Arestov"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "1b6/1P3p2/P1B5/1K1n1N2/8/8/6p1/3k4 w - - 0 1"]
[PlyCount "23"]
[EventDate "2017.??.??"]
[TimeControl "240+2"]

1. Ne3+ $1 Nxe3 2. Bf3+ (2. Bxg2 Nxg2 3. Kb6 Ne3 4. a7 Nc4+ 5. Ka6 Bxa7 6. Kxa7
Na5 7. b8=N f5 8. Nd7 Nc4 9. Nc5 f4 10. Ne6 f3 $19) 2... Ke1 (2... Kc1 3. Bxg2
Nxg2 4. Kb6 Ne3 5. a7 Nc4+ 6. Ka6 Bxa7 7. Kxa7 Na5 8. b8=N f5 9. Nd7 Nc4 10.
Nc5 f4 11. Nd3+ $11) (2... Kc2 3. Bxg2 Nxg2 4. Kb6 Ne3 5. a7 Nc4+ 6. Ka6 Bxa7
7. Kxa7 Na5 8. b8=N f5 9. Nd7 Nc4 (9... f4 10. Ne5 Nc6+ 11. Nxc6 f3 12. Nd4+)
10. Nc5 f4 11. Ne6 f3 12. Nd4+ $11) (2... Kd2 3. Bxg2 Nxg2 4. Kb6 Ne3 5. a7
Nc4+ 6. Ka6 Bxa7 7. Kxa7 Na5 8. b8=N f5 9. Nd7 Nc4 (9... f4 10. Ne5 Nc6+ 11.
Nxc6 f3 12. Ne5 f2 13. Nf3+ Ke2 14. Nh2 $11) 10. Nc5 f4 11. Ne6 f3 12. Ng5 f2
13. Ne4+ $11) 3. Bxg2 Nxg2 4. Kb6 Ne3 (4... Nf4 5. a7 Nd5+ 6. Ka6 $11) 5. a7
Nc4+ 6. Ka6 Bxa7 7. Kxa7 Na5 (7... Ne5 8. Kb8 $11) 8. b8=N {[%eval -81,21] 
[%emt 0:00:02]} (8. b8=Q Nc6+ 9. Kb7 Nxb8) 8... f5 9. Nd7 Nc4 (9... f4 10. Ne5
Nc6+ 11. Nxc6 f3 12. Ne5 f2 13. Nd3+ $11) (9... Nc6+ 10. Kb6 f4 11. Kxc6 f3 12.
Ne5 f2 13. Nd3+ $11) 10. Nc5 (10. Nf6 $2 f4 11. Ka6 f3 $19) 10... f4 11. Nd3+
Kd2 12. Nxf4 $11 1/2-1/2

[Event "4th Prize  JT50 P.Krug Sec.B"]
[Site "?"]
[Date "2017.06.24"]
[Round "?"]
[White "Pavel Arestov"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "3Q4/8/4q3/8/nK6/8/1bp4k/8 w - - 0 1"]
[PlyCount "25"]
[EventDate "2017.??.??"]

1. Qc7+ $1 (1. Qd2+ Kh1 2. Qxc2 Qg4+ 3. Kb3 Kg1 4. Qc6 Qd1+ $19) 1... Kh1 (1...
Be5 2. Qxc2+ $11) (1... Kg1 2. Qxc2 $11) 2. Qh7+ (2. Qxc2 Qg4+ 3. Kb3 Kg1 $19)
2... Kg1 3. Qxc2 Qg4+ 4. Kb3 Qd7 (4... Kf1 5. Qd3+ Ke1 6. Qe3+ Kd1 7. Qd3+ Ke1
(7... Kc1 8. Qc2#) 8. Qe3+ Kf1 9. Qd3+ $11) 5. Qg6+ Kf2 6. Qh5 Bf6 7. Qh2+ Kf3
8. Qh1+ Kf4 9. Qh2+ Kg5 10. Qg3+ Kh5 (10... Kh6 11. Qf4+ $11) 11. Qf3+ Kg6 12.
Qe4+ Kg7 13. Qxa4 $11 1/2-1/2

[Event "HM  JT50 P.Krug Sec.B"]
[Site "?"]
[Date "2017.01.30"]
[Round "?"]
[White "Alexey Sochnev"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "2K5/6n1/2P3P1/Pk1P2r1/8/8/8/8 w - - 0 1"]
[PlyCount "20"]
[EventDate "2017.??.??"]

1. a6 $1 Kb6 (1... Kxa6 2. d6 Rxg6 3. c7 $1 (3. Kb8 $2 Nf5 4. d7 Rg8+ 5. Kc7
Nd4 $19) 3... Rxd6 4. Kb8 Rb6+ 5. Ka8 Rc6 6. Kb8 Rb6+ 7. Ka8 {positional draw})
2. a7 $1 Kxa7 (2... Rf5 3. a8=N+ $1 $11 (3. d6 $2 Rf8+ 4. Kd7 Re8 5. c7 Kb7 $19
)) 3. d6 Rxg6 4. c7 Nf5 (4... Rxd6 {stalemate}) 5. d7 Nd6+ (5... Ne7+ 6. Kd8
Nd5 7. Ke8 $1 Nxc7+ 8. Kf7 Rd6 9. Ke7 Re6+ 10. Kf7 Rd6 11. Ke7 {positional draw
}) 6. Kd8 Kb6 7. Ke7 $1 (7. c8=N+ $2 Kb7 $1 8. Nxd6+ Rxd6 9. Ke7 Kc7 $1 $19) (
7. c8=Q $2 Rg8+ 8. Ke7 Nxc8+ $19) 7... Nf5+ 8. Kf7 $1 (8. Ke8 $2 Rg8+ 9. Kf7
Nh6+ 10. Ke7 Kxc7 $19) 8... Rg7+ 9. Kf8 Kxc7 10. d8=Q+ Kxd8 {stalemate} 1/2-1/2

[Event "HM  JT50 P.Krug Sec.B"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Michal Hlinka & Luboš Kekely"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "1R6/8/1p4r1/k6b/2R3n1/pp6/2P5/3K1N2 w - - 0 1"]
[PlyCount "22"]
[EventDate "2017.??.??"]

1. Rc3 $1 (1. Kc1 $2 b2+ 2. Kb1 Re6 3. Ka2 Re1 4. Nd2 Ra1+ 5. Kb3 Bf7 $11) 1...
Ne3+ {from battery} (1... Ne5+ 2. Kc1 Rg1 3. Ra8+ Kb5 4. Rxb3+ Kc6 5. Rc3+ Kb7
6. Rf8 Be2 7. Rg3 Rh1 8. Rxa3 Bxf1 9. Rc3 Nc4 10. Kb1 Bg2+ 11. Ka2 Bd5 12. Rd3
$11) (1... Rd6+ 2. Nd2 Bf7 3. cxb3 b5 4. Kc1 Ne5 5. Re3 Nd3+ 6. Kb1 $11) 2. Kc1
b2+ (2... Nxf1 3. Rxb3 Ka6 4. Rxa3+ Kb5 5. Rb3+ $11) 3. Kb1 Nxc2 $1 4. Rxc2 (4.
Rh8 $2 Be2 5. Rh2 Kb4 $1 6. Rxe2 a2+ 7. Kxa2 Kxc3 8. Nd2 Rg1 9. Ne4+ Kd3 10.
Rd2+ Kxe4 11. Kxb2 Nd4 $19) 4... Rg1 (4... Rg5 5. Rxb2 axb2 6. Kxb2 $11) 5. Rf8
Bg6 (5... b5 6. Ka2 Bg6 7. Rxb2 axb2 8. Kxb2 $11) 6. Ra8+ Kb4 (6... Kb5 7. Rxa3
Rxf1+ 8. Kxb2 Bxc2 9. Kxc2 $11) 7. Rxa3 $1 Bxc2+ (7... Kxa3 {stalemate}) (7...
Rxf1+ 8. Kxb2 Bxc2 9. Rb3+ $11 {as main}) 8. Kxb2 Rxf1 9. Rb3+ $1 Ka4 10. Ra3+
$1 (10. Kxc2 $2 Rf2+ 11. Kc3 Rf3+ 12. Kc4 Rxb3 $19) 10... Kb4 11. Rb3+ Bxb3 {
stalemate. Meredith. Battery. Sacrifices on both sides. Synthesis of model
stalemates from which one is with double pin.} 1/2-1/2

[Event "Sp.HM  JT50 P.Krug Sec.B"]
[Site "?"]
[Date "2017.06.06"]
[Round "?"]
[White "Bizya Buyennemekh"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/2R1b3/5r2/7K/5Bp1/1P3p2/Pk6/1r5B w - - 0 1"]
[PlyCount "21"]
[EventDate "2017.??.??"]

1. Be5+ $1 Ka3 $1 2. Bxf6 $1 (2. Ra7+ $2 Kb4 3. Bxf6 Rxh1+ 4. Kxg4 f2 5. Ra4+
Kb5 6. Rf4 Bc5 $19) 2... Rxh1+ 3. Kxg4 f2 (3... Bxf6 4. Ra7+ $11) 4. Rc2 $1 (4.
Bxe7+ $2 Kb2 $19) 4... Rg1+ 5. Kh5 $1 (5. Kh4 $2 Bxf6+ $19) (5. Kh3 $2 f1=Q+
$19) 5... Bc5 $3 6. Be7 $1 Rg5+ $1 7. Bxg5 $1 (7. Kxg5 $2 Bxe7+ $19) 7... f1=Q
8. Rxc5 Qd1+ (8... Qf7+ 9. Kg4 $1 $11 (9. Kh6 $2 {/h4?} Qf8+ {/f2-+})) 9. Kg6
Qd6+ 10. Kf7 Qxc5 11. Be7 $1 $11 1/2-1/2

[Event "Sp. HM  JT50 P.Krug Sec.B"]
[Site "?"]
[Date "2017.09.29"]
[Round "?"]
[White "Mihai Neghina"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/1B3b1p/7P/p2p4/P2pp1kp/Q7/1N1Pq2P/7K w - - 0 1"]
[PlyCount "10"]
[EventDate "2017.??.??"]

1. Qh3+ $1 (1. Bc8+ $2 Kh5 $19) (1. h3+ $2 Kh5 $19) (1. Qa1 Kf3 $19) 1... Kxh3
(1... Kg5 2. Qg2+ $11) (1... Kf4 $2 2. Qxh4+ $18) 2. Bc8+ Qg4 3. Nd1 $1 (3. Nd3
$2 exd3 {{cannot sustain the stalemate threat}) 3... e3 4. d3 (4. dxe3 dxe3 5.
Be6 d4 {{-+ (tempo-losing move that breaks the bishop symmetry)}) 4... Qxc8 (
4... Bg6 5. Bf5 $11) (4... Bh5 5. Be6 $11) (4... Be8 5. Bd7 $11) (4... Bg8 5.
Be6 $11) (4... Be6 5. Bxe6 $11) 5. Nf2+ exf2 {stalemate} 1/2-1/2

[Event "Comm.  JT50 P.Krug Sec.B"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Árpád Rusz"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/K7/7P/k2n4/1p1P4/3Nn3/2P5/6b1 w - - 0 1"]
[PlyCount "11"]
[EventDate "2017.??.??"]

1. h7 Nf5 $1 {Black doesn't capture the c2 pawn anticipating a NN/P endgame
with a harmful pawn!} (1... Nxc2 2. h8=Q Bxd4+ 3. Qxd4 Nxd4 4. Nxb4 Nxb4 $11)
2. h8=Q Bxd4+ {fork} 3. Qxd4 Nxd4 4. Nxb4 $1 (4. c4 $2 bxc3 $19 {e.p.}) (4. Kb7
$2 Nc3 $1 5. Nxb4 Kxb4 $19) 4... Nxb4 5. c4 $3 (5. c3 $2 {fork} Nbc6+ $1 (5...
Ndc6+ $2 6. Ka8 $1 Nd3 7. c4 Nc5 {stalemate}) 6. Ka8 $1 (6. Kb7 Nd8+ 7. Kc7
N4c6 $19) 6... Ne6 7. c4 Ka6 $1 {Black doesn't block the pawn and lets it to
pass the Troitzky line!} (7... Nc5 $2 {stalemate}) 8. c5 Nc7#) 5... Ne6 6. c5
$1 {Now it is too late to stop the pawn because it has passed the Troitzky
line.} 1/2-1/2

[Event "Comm.  JT50 P.Krug Sec.B"]
[Site "?"]
[Date "2017.01.31"]
[Round "?"]
[White "Darko Hlebec"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "k1N1b3/8/p7/P5n1/2Kn3p/2P1p2P/p3Q3/4b3 w - - 0 1"]
[PlyCount "12"]
[EventDate "2017.??.??"]

1. Nb6+ $1 ({Thematic Try :} 1. Qxe3 $2 Bf7+ $1 (1... Bb5+ $2 2. Kxd4 Bf2 3.
Qxf2 a1=Q 4. Nb6+ Ka7 5. Nc4 Qe1 6. Kd3+ Qxf2 $11 {stalemate}) 2. Kxd4 Bf2 (
2... Kb8 $2 3. Ke5 Bg3+ 4. Kf6 a1=Q 5. Qb6+ Kxc8 6. Qxa6+ Kd8 7. Qa8+ Kc7 8.
Qa7+ Kd8 9. Qa8+ Kd7 10. Qb7+ Bc7 11. Qb5+ Kc8 12. Qa6+ Kd7 13. Qb5+ Kd8 14.
Qd3+ Ke8 15. Qb5+ Kf8 16. Qc5+ Bd6 17. Qxd6+ Kg8 18. Qb8+ Kh7 19. Qe5 Qf1+ 20.
Kxg5 Qxh3 21. Qe4+ Kg8 22. Qxh4 $11) 3. Qxf2 a1=Q 4. Nb6+ Ka7 5. Nc4 Qe1 6.
Qxe1 Nf3+ $19) 1... Ka7 (1... Kb8 2. Qxe3 Bf7+ 3. Kd3 $1 Bxc3 4. Qe5+ Kb7 5.
Qe7+ $1 Kc6 6. Qd7+ Kc5 7. Qe7+ Kb5 8. Qxg5+ Kb4 9. Qe7+ Kxa5 10. Qa3+ Kxb6 11.
Qxc3 Nb3 12. Qf6+ Kb5 13. Qe5+ Ka4 14. Qd4+ $11) 2. Qxe3 $1 (2. Qxa2 $2 e2 3.
Qa3 Bb5+ $1 4. Kd5 Nf5 $19) 2... Bb5+ (2... Bf7+ 3. Nd5 a1=Q 4. Qe7+ Ka8 5.
Qd8+ Ka7 6. Qb6+ Ka8 7. Qd8+ $11) 3. Kxd4 Bf2 4. Qxf2 a1=Q 5. Nc4 $1 Qe1 (5...
Qg1 6. Kd3+ Qxf2 {stalemate}) (5... Qh1 6. Ke5+ $1 Ka8 7. Qf8+ Ka7 8. Qc5+ $11)
(5... Qd1+ 6. Ke5+ Kb7 7. Qb6+ Ka8 8. Nd6 Qe2+ 9. Kf5 Bd3+ 10. Kxg5 Qe5+ 11.
Kxh4 $11) 6. Kd3+ $1 (6. Qxe1 $2 Nf3+ $19) 6... Qxf2 {stalemate} 1/2-1/2

[Event "Comm.  JT50 P.Krug Sec.B"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "S. Nielsen & M. Minski"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "6K1/n2R4/4P1k1/3R4/8/8/r3rn2/8 w - - 0 1"]
[PlyCount "16"]
[EventDate "2016.??.??"]

1. e7 (1. Rg7+ $2 Kf6 $19) 1... Nc8 2. Kf8 $1 (2. R7d6+ $2 Nxd6 3. Rxd6+ Kf5 4.
Kf8 Ne4 5. Rd5+ Ke6 $1 6. e8=Q+ Kxd5 $19) 2... Ng4 3. e8=Q+ Rxe8+ 4. Kxe8 Nf6+
5. Kd8 (5. Kf8 $2 Nxd5 $1 (5... Nb6 $2 6. Rg7+ $11) 6. Rxd5 Rh2 $1 7. Rc5 (7.
Ke8 Rh8+ 8. Kd7 Nb6+ $19) 7... Rh8# {model mate}) 5... Nb6 {original double
fork position} (5... Ra8 6. Kc7 $11) 6. Ra7 $1 Rxa7 {position X} 7. Rg5+ $1 Kh6
8. Rg6+ $1 Kxg6 {position X without the wRd5, stalemate} 1/2-1/2

[Event "Comm.  JT50 P.Krug Sec.B"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Luboš Kekely"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "1k3N2/p5P1/KP6/4N3/8/2p5/4p1q1/B3r3 w - - 0 1"]
[PlyCount "18"]
[EventDate "2016.??.??"]

1. Nc6+ $1 Qxc6 {now g8 is uncovered but black has mate threats} 2. Nd7+ $1 {
opening of 8th rank} Qxd7 (2... Kc8 3. g8=Q+ Kxd7 4. Qg7+ $11) 3. g8=Q+ Qc8+ 4.
Qxc8+ Kxc8 5. Bxc3 (5. b7+ $2 Kc7 6. Bxc3 Rb1 $19) 5... Ra1+ $1 (5... Rb1 6.
bxa7 $11) (5... Rh1 6. b7+ Kc7 7. Kxa7 Rb1 8. Ba5+ $11) 6. Bxa1 e1=Q {phoenix}
7. b7+ Kc7 (7... Kb8 8. Be5+ $1 Qxe5 {stalemate}) (7... Kd7 8. b8=Q Qxa1+ 9.
Kb7 $11) 8. Be5+ $1 Qxe5 9. b8=Q+ $1 {phoenix} Kxb8 {ideal stalemate. Meredith.
Sacrifices. Black and white phoenix.} 1/2-1/2

