[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2017"]
[Round ""]
[White "Slumstrup Nielsen, Steffen"]
[Black "1st prize"]
[Result "1-0"]
[SetUp "1"]
[FEN "3R3K/5p2/q2N2Pk/6p1/6P1/8/2P1r1P1/8 w - - 0 1"]
[PlyCount "27"]
[EventDate "2017"]

1. g7 Qa1 2. c3 (2. Nf5+ $2 Kg6 3. Rd6+ (3. c3 $5 Qh1+ $1 4. Kg8 Qh7+ 5. Kf8 f6
6. g8=Q+ Qxg8+ 7. Kxg8 Re8+ 8. Rxe8) 3... Re6 4. Ne7+ Kf6) 2... Qxc3 3. Nf5+
Kg6 4. Rd6+ Re6 (4... f6 5. g8=Q#) 5. Ne7+ Kh6 (5... Kf6 6. Nd5+) 6. Rd4 $1
Rxe7 (6... Qxd4 7. Nf5+ Kg6 8. Nxd4 Re8+ 9. g8=Q+ $18) 7. g8=N+ Kg6 8. Nxe7+
Kh6 (8... Kf6 9. Nd5+) 9. Kg8 $1 f6 (9... Qxd4 10. Nf5+) (9... Qb2 10. Rd6+ (
10. Nf5+ Kg6 11. Rd6+ f6 12. Ne7+ Kh6 13. Kh8) 10... f6 11. Kh8) 10. Rd7 (10.
Rd6 $2 Qe5 $1 11. Kf7 Qa5 (11... Kh7 $2 12. Rd3) 12. Ng8+ Kh7 13. Nxf6+ Kh8 $11
) 10... Qc4+ 11. Kh8 Qxg4 12. Ng8+ Kg6 13. Rg7+ Kf5 (13... Kh5 14. Rh7+ Kg6 15.
Ne7#) 14. Nh6+ 1-0

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2018"]
[Round ""]
[White "Pervakov, Oleg"]
[Black "2nd prize"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "1k1KQ3/8/1N2P3/7r/8/5p1q/8/8 w - - 0 1"]
[PlyCount "25"]
[EventDate "2017"]

1. Nd7+ $1 (1. Kd7+ $2 Kb7 $1 2. Nc4 Rh7+ 3. Kd6 Qh2+ $1 $19) 1... Ka7 $1 (1...
Kb7 2. Qe7 $1 Kc6 3. Nb8+ Kd5 4. Qd7+ Kc4 5. Qc6+ Kd3 6. Qd7+ Ke2 7. e7 Rh8+ 8.
e8=Q+ Rxe8+ 9. Qxe8+ $11) 2. Qe7 $1 f2 $1 3. Ne5+ $1 Ka8 4. Qc5 $1 Rh8+ ({
Main B} 4... Qb3 5. Qa5+ Kb7 6. Qc7+ Ka6 7. Qc8+ Qb7 8. Qc4+ Ka7 9. Qa2+ $1 Kb8
10. Nd7+ Qxd7+ 11. exd7 f1=Q 12. Qb2+ $1 Rb5 13. Qe5+ $1 Rxe5 $11 {Stalemate} (
13... Ka8 14. Qe4+ Rb7 15. Ke7 $1 $11)) (4... Qxe6 5. Qa3+ $1 Kb8 6. Qb2+ Ka8
7. Qa3+ Kb7 8. Qf3+ $1 $11) 5. Kc7 Rc8+ $1 6. Kxc8 Qxe6+ 7. Kd8 $1 (7. Kc7 $2
f1=Q $19 {zz}) 7... f1=Q (7... Qg8+ 8. Ke7 $1 (8. Kd7 $2 f1=Q 9. Qa5+ Kb7 10.
Qb4+ Ka6 11. Qa4+ Kb6 $19) 8... f1=Q 9. Qa5+ Kb7 10. Qb4+ Ka6 11. Qa4+ Kb6 $4
12. Nd7+ $18) 8. Kc7 $1 {zz} Qff6 9. Qa5+ $1 Qa6 10. Qd5+ Ka7 11. Nc6+ Qfxc6+
12. Qxc6 Qxc6+ 13. Kxc6 $11 1/2-1/2

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2018"]
[Round ""]
[White "Melnichenko, Emil"]
[Black "3rd/4th prize"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/2k5/1b2P2P/R5K1/P2nb2P/8/8/3n4 w - - 0 1"]
[PlyCount "34"]
[EventDate "2017"]

1. e7 (1. Ra6 $2 Nxe6+ 2. Kf6 Nf8 3. Kf7 Nh7 4. a5 Bd4 5. Rg6 Bd5+ 6. Ke7 (6.
Ke8 Nc3 7. Rg7+ Bxg7 8. hxg7 Ne4 9. Ke7 Nd6 10. g8=Q Bxg8 11. a6 Nf5+ 12. Ke8
Bc4 13. h5 Nf6+ 14. Kf8 Kd7 15. a7 Nh7#) 6... Ne3 7. Ke8 Nf5 8. a6 Bf6 9. Rg7+
Bxg7 10. hxg7 Nf6+ 11. Kf8 Kd8 12. g8=Q Nd7#) (1. Re5 $2 Nf3+ 2. Kf4 Nxe5 3.
Kxe4 Nc6 4. Kf5 Kd6 5. Kf6 Nc3 6. Kf7 Nxa4 7. h7 Bd4 8. Kg8 Ne7+ 9. Kf7 Nc5 $19
) (1. Rb5 $2 Nxb5 2. axb5 Kd6 3. Kf6 Bd4+ 4. Kf7 Bd5 $19) (1. Kf6 $4 Bxa5 2. e7
Kd7 3. h7 Bxh7 4. Kf7 Bg8+ $19) (1. h7 $2 Nxe6+ 2. Kg4 Nf2+ 3. Kg3 Bxh7 4. Re5
Ne4+ 5. Kg2 (5. Kf3 N4c5 6. Rh5 Bc2 $19) 5... N4c5 $19) 1... Kd7 (1... Bxa5 2.
e8=Q Nf3+ (2... Bc6 3. Qe5+ $18) (2... Bd2+ 3. Kh5 Nf5 4. Qe5+ Nd6 5. h7 Bxh7
6. Qe7+ $18) 3. Kh5 Nc3 4. Qe7+ Kc6 5. h7 Bxh7 6. Qxh7 $18) (1... Ne6+ 2. Kf6
Kd7 3. Rb5 (3. Kf7 $2 Bg6+ 4. Kxg6 Bxa5 5. h7 (5. Kf7 Nc7 6. h7 Bc3 7. Kg8 (7.
a5 Ne3 8. Kg8 Kxe7 9. h8=Q Bxh8 10. Kxh8 Kf7 $19) 7... Kxe7 8. h8=Q Bxh8 9.
Kxh8 Kf6 $19) 5... Bc3 6. Kf7 Nc7 7. Kg8 Ne3 8. a5 Nf5 9. h8=Q Bxh8 10. Kxh8
Kxe7 $19) 3... Bd4+ (3... Nc3 4. Rxb6 Nd5+ 5. Ke5 Nxb6 6. Kxe4 Kxe7 (6... Nc8
7. e8=Q+ Kxe8 8. h7 Nd6+ 9. Kd5 $18) 7. h7 $18) 4. Kf7 Nc7 5. h7 Ne3 (5... Bxh7
6. Rb7 (6. Rd5+ Nxd5 7. e8=Q+ Kc7 8. Ke6 Nf4+ 9. Ke7 Bc5+ 10. Kf6 Nd5+ 11. Ke6
Nf4+ 12. Kf6 Bg6 13. Qe5+ Bd6 14. Qa5+ Kd7 15. Qb5+ Kc8 16. Qa6+ Kd7 17. Qb5+
Kd8 18. Qb6+ Kd7 19. Qb5+ $11) 6... Bg8+ 7. Kxg8 Kxe7 8. Rxc7+ $14) 6. Rh5 Bc2
(6... Bh8 7. Kg8 Ba1 8. Kf8 Bg6 9. h8=Q Bxh8 10. e8=Q+ (10. Rh6 Bf6 (10... Ne6+
11. Kg8 Bd4 12. Rxg6 Kxe7 13. h5 Nf4 14. Rg5 Ned5 15. Rf5 Nxh5 16. Rf7+ Ke6 17.
Rb7) 11. Rxg6 Bxe7+ 12. Kf7) 10... Bxe8 11. Rh7+ Kd6 (11... Kd8 12. Rxh8 Ne6+
13. Kg8 Nd5 14. Kh7 Ke7 15. Rxe8+ Kxe8 16. a5 $11) 12. Rxh8 Bxa4 13. Kf7 $11)
7. Kf8 Nf5 8. h8=Q Bxh8 9. Rxh8 Nxe7 10. Kf7 Bb3+ (10... Ncd5 11. h5 $11) 11.
Kf6 Ne8+ 12. Kg5 $11) 2. e8=Q+ (2. Re5 $2 Nf3+ 3. Kf4 Nxe5 4. Kxe5 Nc3 5. Kf6
Ke8 $19) (2. Ra6 $2 Ne6+ 3. Kh5 (3. Kf6 Bd4+ 4. Kf7 Nc7 5. h7 Bxh7 6. Ra5 Be4
7. Rb5 Ne3 8. Rb8 (8. Rb4 Bd5+ 9. Kg6 Bc3 10. Rb6 Kxe7 $19) 8... Bd5+ 9. Kf8
Ne6+ 10. Kf7 Nf4+ 11. Kf8 Ng6#) (3. Kg4 Ne3+ 4. Kg3 (4. Kh5 Kxe7 5. Rxb6 Nf4+
6. Kg5 Nh3+ 7. Kh5 Kf7 8. h7 (8. a5 Bf3#) 8... Bf3+ 9. Kh6 Nf5#) 4... Bc7+ 5.
Kf2 Ng4+ $19) 3... Nf4+ 4. Kg5 Bc7 5. Kf6 Nd5+ 6. Kf7 Nxe7 7. Ra7 Nd5 8. Kg7
Ke6 9. Rxc7 Nxc7 10. h7 Ne8+ 11. Kf8 Bxh7 $19) 2... Kxe8 3. Re5+ (3. Ra6 $2 Bc5
4. h5 (4. Kf6 Nf2 5. h5 Nd3 6. Kg5 Be7+ 7. Kg4 Ne2 8. Kh3 Kf8 9. h7 Bxh7 10.
Ra8+ Kf7 11. Ra7 Be4 12. h6 Nf2+ 13. Kh2 Kf8 14. Ra6 Bg5 15. h7 Bf4#) 4... Ke7
5. Kf4 Bd3 6. Ra8 Bd6+ 7. Kg5 Nf3+ 8. Kg4 Be4 9. Kh3 Ne3 10. Ra5 Bd3 11. h7
Bf1#) 3... Kf7 4. Rxe4 Ne6+ 5. Kh5 (5. Rxe6 $4 Kxe6 6. h7 Bd4 7. Kg6 Nc3 8. a5
Kd5 9. Kf7 Ne4 10. Kg8 Nf6+ 11. Kg7 Ng4+ 12. Kg8 Nh6+ $19) (5. Kf5 $4 Ne3+ 6.
Ke5 (6. Rxe3 Bxe3 7. h7 Bd4 8. Ke4 Ke7 $19) 6... Bc7#) 5... Nf2 6. Rc4 Be3 (
6... Kf6 7. Rc6 Kf5 8. h7 Bd4 9. h8=Q Bxh8 10. Rb6 Ne4 11. Rb5+ $11) 7. a5 Kf6
8. Rc6 Kf5 9. Rxe6 Nd3 10. Re4 Kxe4 11. h7 Bd4 12. a6 (12. Kg6 $2 Kd5 13. a6
Kc6 14. a7 Kb7 15. Kf7 Nf4 $19) 12... Kf5 13. Kh6 Bh8 14. a7 Ne5 15. a8=Q Ng4+
16. Kh5 Nf6+ 17. Kh6 Ng4+ $11 1/2-1/2

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2018"]
[Round ""]
[White "Krug, Peter"]
[Black "3rd/4th prize"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/8/PkP5/6N1/B3p2p/8/3nP1Kp/2n5 w - - 0 1"]
[PlyCount "31"]
[EventDate "2018"]

1. Bb5 Nf1 (1... Nxe2 2. Bxe2 Kxc6 3. Nf7 $18) 2. a7 Kxa7 3. c7 h3+ 4. Kh1 Kb7
5. Ne6 Nxe2 6. Ba6+ Kxa6 7. c8=Q+ Ka5 (7... Ka7 8. Qc7+ Ka8 (8... Ka6 9. Nc5+
Kb5 10. Nxe4) 9. Qa5+ Kb7 (9... Kb8 10. Qb6+) 10. Nc5+ Kc6 11. Nxe4) (7... Kb6
8. Qd8+ Ka7 (8... Ka6 9. Nc5+) (8... Kb7 9. Nc5+) (8... Kc6 9. Nd4+) (8... Kb5
9. Nd4+) 9. Qa5+) (7... Kb5 8. Qb7+ Ka5 (8... Ka4 9. Qxe4+) 9. Qd5+ Kb6 10.
Qc5+ Ka6 11. Qc6+ Ka5 12. Qa8+) 8. Qa8+ (8. Qc5+ Ka4 9. Qc4+ Ka3) 8... Kb4 9.
Qxe4+ Kc3 (9... Ka5 10. Qe5+ Kb6 11. Qc5+ Ka6 12. Qa3+) 10. Qf3+ Kb4 (10... Kd2
11. Qf2 Kc3 12. Qe1+ Kb3 13. Nd4+) 11. Qf8+ $1 Kc3 12. Qf6+ Kb4 13. Qb2+ Ka5 (
13... Ka4 14. Nc5+ Ka5 15. Ne4) 14. Qa3+ Kb6 15. Qb4+ Kc6 16. Nd4+ 1-0

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2017"]
[Round ""]
[White "Tallaksen Ostmoe, Geir Sune"]
[Black "5th prize"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "5K1k/4P3/1p2r2p/pP4PP/4B3/p3p1B1/4r3/8 w - - 0 1"]
[PlyCount "24"]
[EventDate "2017"]

1. g6 (1. Bd5 $2 a2 $1 2. Bxe6 a1=Q 3. e8=Q Qg7#) (1. e8=Q $2 Rf2+ 2. Qf7 Rxf7+
3. Kxf7 a2 $19) 1... Rf6+ 2. Ke8 Rd2 3. Be5 e2 4. Bxf6+ Kg8 5. Bh8 $1 e1=Q 6.
g7 {threatening Bd5+} Rd6 $1 (6... Qxe4 {stalemate}) 7. Bd5+ Qe6 $1 8. Bb3 $1 {
mzz} (8. Ba2 $2 a4 {mzz} 9. Bc4 Rc6 $1 10. bxc6 Qxc4 11. c7 a2 {wins}) 8... a2
(8... a4 9. Ba2 {mzz} Rc6 10. bxc6 Qxa2 11. c7 Qe6 12. Kd8 Qd5+ (12... Qd6+ 13.
Ke8 Qxc7 $11) 13. Kc8 $1 $11) 9. Bxa2 a4 10. Bc4 (10. Bd5 $2 Rd8+ $1 11. Kxd8
Qxd5+ $19) 10... Rc6 11. bxc6 Qxc4 12. c7 Qxc7 1/2-1/2

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2018"]
[Round ""]
[White "Samilo, Vladimir"]
[Black "1st honourable mention"]
[Result "1-0"]
[SetUp "1"]
[FEN "r1k5/p7/P7/1R3K1B/1R6/1p4p1/P7/4q3 w - - 0 1"]
[PlyCount "31"]
[EventDate "2017"]
[SourceVersionDate "2018.06.17"]

1. Rc4+ ({try} 1. Rc5+ $2 Kd8 (1... Kd7 2. Rd4+ Ke7 3. Re4+ Qxe4+ 4. Kxe4 bxa2
$19) 2. Rd5+ Kc7 $1 (2... Ke7 3. Re5+ (3. Re4+ Qxe4+ $19) 3... Qxe5+ 4. Kxe5
bxa2 5. Rb7+ Kf8 6. Rf7+ {is main line})) 1... Kd8 2. Rd5+ (2. Rd4+ $2 Ke7 3.
Re4+ Qxe4+) 2... Ke7 3. Re5+ (3. Re4+ $2 Qxe4+ $19) 3... Qxe5+ 4. Kxe5 bxa2 (
4... g2 5. Rc7+ $1 (5. Rc1 $2 Rh8 $19) 5... Kf8 6. Rc1 $144) 5. Rc7+ (5. Ra4 $2
g2 $19) 5... Kf8 (5... Kd8 6. Kd6 $1 a1=Q 7. Rd7+ Kc8 8. Rc7+ Kb8 9. Rb7+ $11)
6. Rf7+ Kg8 7. Rf1 Rf8 $1 (7... g2 8. Rg1 $1 Kf8 9. Bf3 Rb8 10. Bb7 $11) 8. Rg1
Kh8 (8... Kh7 9. Bg6+ Kxg6 (9... Kh6 10. Be4 $11) 10. Rxg3+ $11) 9. Bg4 $1 (9.
Bg6 $2 Rb8 10. Rh1+ Kg7 $19) 9... Rb8 (9... g2 10. Bf5 $1 Rb8 11. Kf6 Rb1 12.
Rxg2 Rb6+ 13. Kf7 Rf6+ 14. Kxf6 a1=Q+ 15. Kf7 $11) 10. Rh1+ $3 (10. Ra1 g2 11.
Bf5 Rb1 12. Bxb1 g1=Q $19) 10... Kg7 11. Ra1 g2 12. Bf3 {(h3)} Rb1 13. Rxa2
g1=Q 14. Rg2+ Qxg2 15. Bxg2 Rb6 16. Bb7 (16. Bf1 $2) 1-0

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2018"]
[Round ""]
[White "Hlinka,Michal & Kekely,Lubos"]
[Black "2nd hounourable mention"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/2K2p2/BP1p4/3k4/1P5r/8/8/8 w - - 0 1"]
[PlyCount "23"]
[EventDate "2017"]
[SourceVersionDate "2018.09.16"]

1. Bb7+ Kc4 (1... Ke5 2. b5 f5 3. Bc6 $18) 2. Bc8 Rh5 (2... f5 3. b7 Rh7+ 4.
Bd7 Rh8 5. Kc6 {as in main}) 3. Bd7 f5 (3... Rh8 4. b7 f5 5. Kc6 {as in main})
4. b7 Rh8 5. Kc6 {threat 6.Bc8} d5 6. b5 f4 (6... d4 7. Be6+ $1 Kb4 8. Bc8 Rh6+
9. Kc7 Rh7+ 10. Kb6 Rh6+ 11. Ka7 Rh7 12. Ka6 $18) 7. Be6 $1 (7. Bc8 $2 Rh6+ 8.
Kc7 Rh7+ 9. Kb6 Rxb7+ 10. Bxb7 f3 $11) 7... Rf8 8. Bxd5+ Kd4 9. Be6 $1 {
switchback} (9. Bf7 $2 f3 10. Bh5 f2 11. Be2 Ke3 12. Bf1 Kd2 13. Kb6 Ke1 14.
Bc4 Rf4 15. b8=Q Rxc4 16. Qe5+ Kf1 17. Ka5 Rc1 $11) 9... f3 10. Bh3 (10. Kb6 $2
f2 11. Bh3 Ke3 12. Ka7 Rh8 13. Bg2 Rg8 14. b8=Q Rxg2 15. Qe5+ Kf3 16. Qd5+ Kg3
17. Qd3+ Kh2 18. Qf1 Kg3 19. b6 Rg1 $11) 10... f2 (10... Rh8 11. Bf1 $18) 11.
Bf1 (11. Kb6 $2 Rh8 12. Bf1 Ke3 13. Ka7 Rh1 14. b8=Q Rxf1 $11) 11... Rg8 12.
Kc7 (12. Kb6 $2 Ke3 $11) 1-0

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2018"]
[Round ""]
[White "Gurgenidze,David & Minski,Martin"]
[Black "3rd honourable mention"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/8/1R1P4/P7/5pn1/8/r6k/3K4 w - - 0 1"]
[PlyCount "19"]
[EventDate "2017"]

1. d7 Rxa5 (1... Ne3+ 2. Kc1 Rc2+ 3. Kb1 Rd2 4. Rb2 $18) (1... Nf2+ 2. Kc1 Nd3+
3. Kb1 $18) (1... Ra1+ 2. Kd2 Ne3 3. Rb2 $1 {battery} Rd1+ 4. Kc3+ Kg3 5. Rd2
$18) 2. Rb2+ $1 (2. d8=Q $2 Rd5+ $1 3. Qxd5 Ne3+ {fork} 4. Ke2 Nxd5 5. Rh6+ Kg3
6. Rg6+ Kh4 $11) 2... Nf2+ $1 {cross-check sacrifice} (2... Kg1 3. d8=Q Rd5+ 4.
Qxd5 Ne3+ 5. Ke2 Nxd5 6. Kf3 $1 Kf1 7. Rb1#) (2... Kg3 3. Rb3+ Ne3+ 4. Rxe3+
fxe3 5. d8=Q $18) 3. Rxf2+ Kg3 4. Rf3+ $3 {desperado sacrifice} (4. d8=Q $2
Ra1+ 5. Ke2 Ra2+ 6. Kd3 (6. Kd1 $5 Ra1+ $1 (6... Rxf2 $2 7. Ke1 $18) 7. Kc2
Ra2+ 8. Kd3 Rxf2 $11) 6... Rxf2 $11 {theoretical draw after Guretzky & Cornitz}
) 4... Kxf3 5. d8=Q Ra1+ 6. Kd2 {/Kc2} Ra2+ 7. Kd3 Rf2 8. Qg5 $1 (8. Qh4 $2 Kg2
$1 $11) 8... Rg2 9. Qh4 $1 (9. Qh5+ $2 Kg3 $1 10. Qg5+ Kh3 $1 11. Qxf4 Rg3+ 12.
Ke2 (12. Ke4 Rg4 $11) 12... Rg2+ 13. Kf1 Rg1+ $1 14. Kxg1 {stalemate}) 9... Rf2
$6 {last chance according the Guretzky & Cornitz position with 10...Kg2} 10.
Qh3# 1-0

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2018"]
[Round ""]
[White "Afek, Yochanan"]
[Black "4th honourable mention"]
[Result "1-0"]
[SetUp "1"]
[FEN "3N4/8/1p2P1p1/4k2P/PK3n2/1p6/8/8 w - - 0 1"]
[PlyCount "19"]
[EventDate "2018"]

{The key is winning b6 by the white knight to allow the b pawn promotion. How
can the knight get there? with the help of a series of deflections:} 1. e7 $1 {
Deflection} (1. Kxb3 $2 Nxe6 2. Nxe6 gxh5 3. Ng5 Kf4 4. Nh3+ Kg3 $11) 1... Nd5+
2. Kxb3 Nxe7 3. h6 Kf6 (3... g5 4. Nc6+ $1 {Deflection!} Nxc6 5. h7 $18) 4. Ne6
$1 {Deflection!} g5 5. h7 Ng6 6. Nf8 $1 {Deflection!} Nh8 7. Nd7+ Kg7 8. Nxb6
Nf7 9. a5 Nd8 10. a6 $18 1-0

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2018"]
[Round ""]
[White "Neghina, Mihai"]
[Black "special honourable mention"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "4b3/5p2/2p4p/P1p1PN2/2pn2P1/P2k4/Pr1npKN1/B7 w - - 0 1"]
[PlyCount "117"]
[EventDate "2018"]

1. Ne1+ (1. Bxb2 $4 Ne4+ 2. Kg1 Nf3+ 3. Kh1 Nf2#) 1... Kc3 (1... Ke4 2. Bxb2
Bd7 3. a6 Nb5 4. Nxh6 $18) 2. Ng3 (2. a6 $2 Ne4+ 3. Ke3 Nb5 4. Kxe4 Kd2 $19)
2... Bd7 3. a6 Bc8 4. a7 Bb7 5. Kg2 (5. g5 $2 hxg5 6. Kg2 g4 $11) 5... Ba8 6.
Kh3 (6. g5 {minor dual}) (6. e6 {minor dual}) (6. Kh2 {or any other dark
square where it can be checked by a black knight, is winning for Black, since
it allows Black to untangle.}) 6... Bb7 7. g5 (7. e6 {minor dual}) 7... hxg5 8.
Kg4 Ba8 (8... Bc8+ 9. e6 $18) 9. Kh5 (9. e6 $2 {not a dual here} f5+ $19) 9...
Bb7 10. e6 fxe6 11. Kg6 Ba8 12. Kf6 {triangulation over f6} (12. Kh7 {minor
dual}) 12... Bb7 13. Kf7 Ba8 14. Ke8 Bb7 15. Kd7 Ba8 16. Kc8 {first zugzwang}
e5 (16... Bb7+ 17. Kb8 $18) 17. Kd7 Bb7 18. Ke8 Ba8 19. Kf7 Bb7 20. Kf6 Ba8 21.
Kg6 Bb7 22. Kf7 Ba8 23. Ke8 Bb7 24. Kd7 Ba8 25. Kc8 {zz} e4 26. Kd7 Bb7 27. Ke8
Ba8 28. Kf7 Bb7 29. Kf6 Ba8 30. Kg6 Bb7 31. Kf7 Ba8 32. Ke8 Bb7 33. Kd7 Ba8 34.
Kc8 {zz} e3 35. Kd7 Bb7 36. Ke8 Ba8 37. Kf7 Bb7 38. Kf6 Ba8 39. Kg6 Bb7 40. Kf7
Ba8 41. Ke8 Bb7 42. Kd7 Ba8 43. Kc8 {zz} g4 44. Kd7 Bb7 45. Ke8 Ba8 46. Kf7 Bb7
47. Kg6 (47. Kf6 Ba8 48. Kg6 Bb7 49. Kf7 Ba8 50. Ke8 Bb7 51. Kd7 Ba8 52. Kc8
Bb7+ 53. Kb8 Ba6+ 54. Bxb2+ Kxb2 55. a8=Q Bb5 $11) 47... Ba8 48. Kh5 Bb7 49.
Kxg4 Ba8 50. Kh5 Bb7 51. Kg6 Ba8 52. Kf6 Bb7 53. Kf7 Ba8 54. Ke8 Bb7 55. Kd7
Ba8 56. Kc8 {final zugzwang} Bb7+ 57. Kb8 Ba6+ 58. Bxb2+ Kxb2 59. a8=Q $18
1/2-1/2

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2017"]
[Round ""]
[White "Gurgenidze,David & Minski,Martin"]
[Black "1st commendation"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/2R5/3R4/8/2N2qNk/8/4p3/4n1KB w - - 0 1"]
[PlyCount "14"]
[EventDate "2017"]

1. Rh7+ (1. Rh6+ Kg3 $19) 1... Kg3 2. Nd2 $1 (2. Nce3 $2 Nc2 3. Rd3 e1=Q+ 4.
Nf1+ Kxg4 5. Rg7+ (5. Bf3+ Kg5 $19) 5... Kh4 6. Rh7+ Kg5 $19) (2. Nge3 Qf2#)
2... Qxd2 (2... Nf3+ 3. Bxf3 e1=Q+ 4. Nf1+ Qxf1+ 5. Kxf1 Qxf3+ 6. Ke1 Qe4+ 7.
Kf1 Qf4+ (7... Qxh7 8. Nf2 $11) 8. Ke1 Qxd6 9. Ne3 Qb4+ 10. Ke2 Qb2+ 11. Kd3
Qb1+ 12. Nc2) (2... Qxd6 3. Ne4+) 3. Rh3+ (3. Rxd2 Nf3+ 4. Bxf3 e1=Q#) 3...
Kxh3 4. Nf2+ (4. Rxd2 Nf3+ 5. Kf2 e1=Q+ 6. Kxf3 Qxd2) 4... Kh4 5. Rxd2 Nf3+ 6.
Kg2 (6. Bxf3 e1=Q+ 7. Kg2 Qxd2) 6... e1=Q 7. Re2 $3 Qxe2 1/2-1/2

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2018"]
[Round ""]
[White "Kekely,Lubos & Hlinka,Michal"]
[Black "2nd commendation"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "2b4K/3p4/P7/3RP3/r7/k7/8/8 w - - 0 1"]
[PlyCount "25"]
[EventDate "2018"]
[SourceVersionDate "2018.03.05"]

1. a7 (1. Rd3+ $2 Kb2 2. Rd2+ Kc3 3. Rd1 Rxa6 4. Rc1+ Kd4 5. Rxc8 Kxe5 $19) (1.
Rc5 Bxa6 2. Rd5 Bc8 3. Rc5 Bb7 4. Rc7 Rh4+ 5. Kg7 Be4 6. Kf6 Bc6 $19) 1... Rxa7
2. Rc5 Ba6 (2... Ra8 3. Kg7 Kb4 4. Rc1 $1 Ba6 5. Ra1 $1 Kc5 6. Kf6 $11) 3. e6
$1 dxe6 4. Rc6 $1 Ra8+ (4... e5 5. Re6 $11) 5. Kg7 Bc8 6. Kf6 Ka4 $1 7. Rc1 $1
(7. Rc2 $2 Rb8 $1 8. Rc1 Ka5 9. Ke7 Rb7+ 10. Kd8 (10. Kd6 Rd7+ $19) 10... Bd7
$19) 7... Kb4 (7... Kb5 8. Ke5 Kb6 9. Kd6 Kb7 10. Rb1+ $11) 8. Rc2 $1 (8. Ke5
$2 Ra5+ $19) (8. Ke7 $2 Kb5 9. Rc2 Ra7+ 10. Kf6 Bd7 $19) 8... Kb5 (8... Bd7 9.
Rc7 $11) 9. Ke5 Bd7 (9... Kb6 10. Kd6 $11) 10. Kd6 (10. Rd2 $2 Ra7 $19) (10.
Rc7 $2 Rd8 11. Kd6 Bc8+ 12. Ke5 (12. Ke7 Rd7+ $19) 12... Rd5+ 13. Kf6 Rc5 $19)
10... Bc8 11. Ke5 Kb4 12. Kf6 Kb5 13. Ke5 1/2-1/2

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2017"]
[Round ""]
[White "Bulanov,V & Fomichev,E"]
[Black "3rd commendation"]
[Result "1-0"]
[SetUp "1"]
[FEN "1B6/P7/8/p2P4/5P2/1K5p/7q/kn1N3b w - - 0 1"]
[PlyCount "21"]
[EventDate "2017"]

1. Be5+ (1. a8=Q Qa2#) 1... Nc3 2. a8=Q (2. Bxc3+ Kb1 3. a8=Q Qa2#) (2. Nxc3
Qb2+) 2... Bxd5+ 3. Qxd5 Qa2+ 4. Kxc3 Qxd5 5. Kc2+ Ka2 (5... Qxe5 6. fxe5 h2 7.
Nf2) 6. Nc3+ Ka3 7. Nxd5 h2 8. Bd6+ Ka2 (8... Ka4 9. Nc3#) 9. Nc3+ Ka1 10. Ba3
h1=Q 11. Bb2# 1-0

[Event "Probleemblad 2017-2018"]
[Site ""]
[Date "2017"]
[Round ""]
[White "Krug,Peter & Garcia,Marcia"]
[Black "4th commendation"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/5P2/6N1/4p3/4R3/3pP1pB/4P1pP/4Kbrk w - - 0 1"]
[PlyCount "15"]
[EventDate "2017"]

1. Kd2 $1 dxe2 (1... Bxe2 2. Bxg2+ Kxg2 3. Nh4+ $1 (3. f8=Q $2 Rd1+ 4. Kc3 Rc1+
5. Kb2 d2 $1 6. Nh4+ Kg1 $1 $11) (3. Rxe5 $2 Rd1+ 4. Kc3 Rc1+ $11) 3... Kh1 (
3... Kxh2 4. f8=Q Rd1+ 5. Kc3 $18) 4. f8=Q g2 5. Qa8 $1 (5. Nxg2 $2 Rd1+ 6. Kc3
Rc1+ $11) 5... Rd1+ 6. Kc3 g1=Q 7. Rg4+ Kxh2 8. Nf3+) 2. Ke1 $1 (2. f8=Q $2
e1=Q+ 3. Kxe1 Bd3+ 4. Kd2 Bxe4 5. hxg3 Rd1+ $1 6. Kxd1 g1=Q+ $11) 2... gxh2 3.
Nf4 (3. Rg4 $2 e4 4. Bxg2+ Bxg2+ 5. Kxe2 Bf3+ 6. Kf2 Rxg4 7. Nf4 Rxf4 8. exf4
e3+ 9. Kxf3 Kg1 10. Kxe3 h1=Q 11. f8=Q Qh3+ $11) 3... exf4 4. f8=Q fxe3 (4...
f3 5. Qb4 $18) 5. Qf2 $1 (5. Bxg2+ $2 Bxg2+ 6. Kxe2 Bxe4 $11) 5... exf2+ 6.
Kxf2 e1=Q+ 7. Rxe1 Be2 8. Bxg2# 1-0

