[Event "Polish Chess Federation (16.10.2018) "]
[Site "?"]
[Date "2018.??.??"]
[Round "?"]
[White "Study 1. Branislav Djurasevic"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/3K1k2/8/1r1P1p2/1pR5/8/8/2N5 w - - 0 1"]
[PlyCount "21"]
[EventDate "2018.??.??"]

1. d6 (1. Kc6 $2 b3 $1 $10) 1... b3 2. Ne2 $3 ({Thematic try 2:} 2. Nd3 $2 b2
$1 3. Nxb2 Rxb2 4. Rc5 Kf6 $1 (4... Rf2 $2 5. Kc8 $1 Rd2 6. d7 Ke7 7. Rc7 $1
$18) 5. Kc7 Rd2 $1 6. d7 Ke7 $1 7. Re5+ Kf6 8. Re2 Rd3 9. d8=Q+ Rxd8 10. Kxd8
f4 $10) ({Thematic try 1:} 2. Nxb3 $2 Rxb3 3. Rc5 Kf6 $1 (3... Rf3 4. Kc8 $1
Rd3 5. d7 Ke7 6. Rc7 $1 $18) 4. Kc7 Rd3 $1 5. d7 Ke7 $1 6. Re5+ Kf6 7. Re3 Rd2
8. d8=Q+ Rxd8 9. Kxd8 f4 $10) 2... b2 3. Nc3 b1=Q (3... Rb3 4. Nb1 $1 $18) 4.
Nxb1 Rxb1 5. Rc5 $1 {Necessary quiet move.} Kf6 6. Kc7 $1 (6. Kc8 $2 Rd1 {or 6.
..Kg5 7.d7 Rd1 moves inversion} 7. d7 Kg5 $1 8. d8=Q+ Rxd8+ 9. Kxd8 Kg4 $1 $11)
6... Rd1 7. d7 Ke7 (7... Kg5 8. Rc6 $1 {another quiet move} (8. Kc6 $2 Kf6 $1
9. Rd5 $2 Rxd5 10. Kxd5 Ke7 $11) 8... f4 (8... Rxd7+ 9. Kxd7 $18) 9. Rd6 $18)
8. Re5+ Kf6 9. Re1 $3 {Crucial white move.} (9. Re8 $2 f4 $1 $11) 9... Rd2 10.
d8=Q+ Rxd8 11. Kxd8 $18 {Award has not yet been performed by the judge.} 1-0

[Event "2 prize, EG 2016-2017"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Study 2. Branislav Djurasevic"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "2qk4/bp3BP1/P7/K1P5/5N2/3n4/1p6/8 w - - 0 1"]
[PlyCount "21"]
[EventDate "2017.??.??"]

1. g8=Q+ Kc7 2. Nd5+ Kb8 3. Qg3+ Nf4 $1 {play for stalemate} ({main} 3... Ka8
4. Nc7+ Qxc7+ 5. Qxc7 b1=Q 6. axb7+ (6. Qd8+ $2 Bb8 7. axb7+ Ka7 $1 $11) 6...
Qxb7 7. Qd8+ Bb8 8. Bd5 Nxc5 9. Qg8 $1 (9. Qg5 $4 Bc7#) (9. Bxb7+ $4 Nxb7+ $19)
9... Nb3+ 10. Ka4 Nc5+ 11. Ka3 $18) 4. Qxf4+ Ka8 5. Nc7+ (5. axb7+ $2 Kxb7 6.
Qb4+ Ka8 7. Nb6+ Bxb6+ 8. Qxb6 Qxc5+ $1 9. Qxc5 b1=Q $11) 5... Qxc7+ 6. Qxc7
b1=Q 7. axb7+ (7. Qd8+ $2 Bb8 8. axb7+ Ka7 $11) 7... Qxb7 8. Qd8+ Bb8 9. Bd5
Ka7 $1 10. Qb6+ $1 (10. Bxb7 $2 Bc7+ $1 11. Qxc7 $11 {stalemate (idea by
Maurice Ashley)}) 10... Qxb6+ 11. cxb6# {Judge (M. Minski) comments: Ideal
mate with block on b8. Author has managed to improve a nice stalemate idea by
Maurice Ashley (see "Game Studies" by Siegfried Hornecker, EG iv2017). In the
first main line, Black sacrifices the knight in order to realize this
stalemate. Thanks to the added white pawn, White forces an ideal mate with
block on b8. In the second main line, the bS plays an active role, but White
can find better places for Q and K.} 1-0

[Event "Special hm, Moscow Ty"]
[Site "?"]
[Date "2018.??.??"]
[Round "?"]
[White "Study 3. Branislav Djurasevic"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "7k/4p1p1/3P1PP1/8/8/Kb6/8/5r2 w - - 0 1"]
[PlyCount "7"]
[EventDate "2018.??.??"]

1. fxe7 $1 ({Try:} 1. dxe7 $2 Bg8 $1 ({or} 1... Rf3 2. e8=Q+ Bg8+ $11 {moves
inversion. The same as after 1....Bg8! in try.}) (1... Rxf6 $2 2. e8=Q+ Bg8 3.
Qe4 $1 Bd5 $5 (3... Be6 4. Qa8+ $1 (4. Qh1+ $2 Kg8 5. Qa8+ Rf8 6. Qc6 Bf7 $1 7.
gxf7+ Kxf7 $1 $11 (7... Rxf7 $2 8. Qe6 $1 $18)) 4... Bg8 5. Qh1+ Bh7 6. Qxh7#)
4. Qxd5 Rxg6 5. Qa8+ $1 (5. Qh5+ $2 Rh6 $11) 5... Kh7 6. Qe4 $1 Kh6 7. Qh4# $1)
2. e8=Q Rf3+ $1 3. Kb4 Rf4+ 4. Kc5 Rf5+ 5. Kd4 (5. Kd6 Rxf6+ 6. Kc7 Re6 $11)
5... Rf4+ 6. Ke5 (6. Ke3 Rxf6 $1 7. Qe4 $2 Re6 $19) 6... Rxf6 $1 $11 {White
king could not escape from perpetual check coming on 6th rank or e file.}) 1...
Bg8 $1 {Black plays on stalemate!} (1... Rf3 $2 2. Kb4 $1 {Here, the king
crossed 4th rank.} Bg8 3. d7 $1 $18) 2. d7 $1 (2. e8=Q $2 Rf3+ 3. Kb4 Rb3+ 4.
Kc5 Rc3+ 5. Kb6 Rb3+ 6. Kc7 Rc3+ 7. Kd8 Rc8+ 8. Ke7 Rxe8+ 9. Kxe8 Be6 $11) 2...
Rf4 $1 {Black does not allow white king to cross 4th rank and predicting to
check on 4th rank after white promotes any of his pawns to queen.} (2... Rd1 $2
3. e8=Q $1 Rd3+ 4. Kb4 Rb3+ 5. Kc5 $1 Rc3+ 6. Kd6 $1 Rd3+ 7. Kc7 Rc3+ 8. Kd8
Rc8+ 9. Ke7 Rxe8+ 10. Kxe8 $18) (2... Re1 $2 3. d8=Q $1 Re3+ 4. Kb4 Rb3+ 5. Ka5
Ra3+ 6. Kb6 Rb3+ 7. Ka6 Ra3+ 8. Qa5 $18) 3. d8=N $3 {But white has another ace
up in his sleeve!} (3. d8=Q $2 Ra4+ $1 4. Kb2 Rb4+ $1 5. Kc3 Rb3+ $1 (5... Rc4+
$2 6. Kd3 Rc3+ 7. Ke2 $1 Rc2+ (7... Re3+ 8. Kd2 Re2+ 9. Kc3 Rc2+ 10. Kb4 $1
Rb2+ 11. Ka5 $18) 8. Qd2 $1 $18 (8. Ke1 $2 Rc1+ $1 (8... Re2+ $2 9. Kd1 $1 $18)
9. Qd1 $2 Rxd1+ 10. Kxd1 Bb3+ $19)) 6. Kd2 (6. Kd4 Rd3+ $11) 6... Rb2+ 7. Kd1
Rb1+ 8. Ke2 Re1+ $11) (3. e8=Q $2 Ra4+ $1 4. Kb2 Rb4+ $1 ({or} 4... Ra2+ $1 5.
Kc3 Rc2+ $1 6. Kd4 Rc4+ $1 $11) 5. Kc3 Rc4+ $1 $11 (5... Rb3+ $2 6. Kd4 $1 Rb4+
7. Kc5 $1 $18)) 3... Rf8 $5 (3... Re4 4. Nf7+ $1 {And now white uses the bad
position of black bishop who blocks his king.} Bxf7 5. gxf7 $18) 4. exf8=N $1
$18 {Unexpectedly only two promoted knights bring a win for white because
black king stays in prison. Short, but very intensive study; every single move
deserves exclamation mark with rich play in between. Judge: S. Osintsev} (4.
exf8=B $2 Bd5 $1 5. Bd6 Kg8 $1 $11 {with 6....Be4} (5... Be4 $2 6. Nf7+ Kg8 7.
Ne5 $18)) 1-0

[Event "prize 11th Jenever JT"]
[Site "?"]
[Date "2018.??.??"]
[Round "?"]
[White "Study 4. Branislav Djurasevic"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/p4p2/7p/4P2p/7N/3n1P2/5kN1/3K4 w - - 0 1"]
[PlyCount "21"]
[EventDate "2018.??.??"]

1. f4 {For White it is more important to save the e-pawn instead of the f-pawn.
} (1. Kd2 $2 Nxe5 $19) 1... Kg3 {Active play to attack f4.} (1... a5 2. Kd2 $11
) 2. Ke2 $1 {It is curious that the White king has to protect the king side,
but not the queenside. Black's pawn on a7 will be stopped by white knight
which even twice moves to the opposite side corner to reach on time.} ({
Thematic try:} 2. Kd2 $2 Nxf4 $1 3. Nxf4 Kxf4 4. Ng6+ Ke4 $1 ({for with the
similar final position} 4... Kf5 $1 5. Ne7+ Kxe5 6. Nc6+ (6. Ke3 a6 $1 $19)
6... Kf4 7. Nxa7 (7. Ke2 Kg3 8. Kf1 a6 $1 $19 {And the f pawn decides.}) 7...
Kg3 8. Ke2 Kg2 $1 $19) 5. Nh8 Kxe5 6. Nxf7+ Kd5 $1 7. Nh8 a5 8. Ng6 Ke4 $1 9.
Ne7 a4 10. Nc6 a3 11. Nb4 Kf3 $1 12. Ke1 Kg2 $1 $19) 2... Nxf4+ 3. Nxf4 Kxf4 4.
Ng6+ $1 {Now the role of the e-pawn is obvious because the knight cannot be
taken.} (4. Nf3 $2 a5 $19) 4... Ke4 $1 (4... Kf5 5. Ne7+ Kxe5 6. Nc6+ $11) 5.
Nh8 $1 {Thematic move} Kxe5 6. Nxf7+ Kd5 7. Nh8 $1 {Thematic move once more} (
7. Nxh6 $2 Ke6 $1 $19) 7... a5 8. Ng6 Ke4 ({or} 8... a4 9. Nf4+ $1 Kc4 10. Nd3
a3 11. Nc1 $11 {and White is just on time.}) 9. Ne7 a4 10. Nc6 a3 11. Nb4 {
(Judge: Marcel Van Herck)} 1/2-1/2

[Event "3rd Prize JT50 P.Krug Sec.A"]
[Site "?"]
[Date "2017.??.??"]
[Round "?"]
[White "Study 5. 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 {(Judge: P. Krug)} 1-0

[Event "1 comm. UP-25, "]
[Site "?"]
[Date "2018.??.??"]
[Round "?"]
[White "Study 6. Branislav Djurasevic"]
[Black "?"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/7p/8/7P/Bbn5/kN6/8/K7 w - - 0 1"]
[PlyCount "11"]
[EventDate "2018.??.??"]

1. Bc6 $1 (1. Bd7 $2 Kxb3 2. Be6 Bc3+ $1 3. Kb1 Kb4 4. h6 Nd2+ $1 5. Kc2 Ne4 {
(f3) -+}) 1... Kxb3 2. Bd5 $1 Kc3 $1 (2... Bc3+ 3. Kb1 Kb4 $1 4. h6 $1 (4. Bg8
$2 Nd2+ 5. Kc2 h6 $1 $19) 4... Kb3 (4... Nd2+ 5. Kc2 $11) 5. Kc1 $1 Bd2+ 6. Kd1
$1 $11) 3. Bg8 $3 (3. Bxc4 $2 Kxc4 $19) (3. h6 $2 Kb3 $3 4. Kb1 Bd2 $1 5. Bg8
Bxh6 6. Bxh7 (6. Bxc4+ Kxc4 7. Kc2 Be3 8. Kd1 Kd3 9. Ke1 Ke4 $1 10. Kf1 Kf3 $1
$19) 6... Na3+ 7. Ka1 Bg7#) 3... Nd2 $1 (3... h6 4. Bxc4 $3 $11) 4. h6 $1 (4.
Bxh7 $2 Kb3 $1 5. Bg8+ Ka3 6. h6 Bc3#) 4... Bf8 5. Ka2 $1 Bxh6 6. Bxh7 $11 {
(Judge: S. Osintsev)} 1/2-1/2

