[Event "1.Pr Probleemblad 2019-2020"]
[Site ""]
[Date "2019.07.01"]
[Round ""]
[White "Slumstrup Nielsen, Steffen"]
[Black "Minski, Martin"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/1P6/K4P2/6P1/2p5/7N/7b/4r2k w - - 0 1"]
[PlyCount "19"]
[EventDate "2018"]

1. f7 $1 (1. Nf2+ $2 Kg2 2. f7 Bd6 3. b8=Q Ra1+ 4. Kb6 Rb1+ 5. Kc6 Rxb8 6. Kxd6
Kxf2 7. g6 c3 8. g7 c2 9. f8=Q+ Rxf8 10. gxf8=Q+ Ke2 $11) 1... Ra1+ $1 {
in order to avoid the Nowotny} (1... Rf1 2. Nf4 $1 {Nowotny} Rxf4 3. b8=Q Rf6+
4. gxf6 $18) 2. Kb5 $1 (2. Kb6 $2 Rf1 3. g6 c3 4. Ng1 $4 Bxg1+ $1 $19 {with
check!}) 2... Rf1 (2... Rb1+ 3. Kc6 $1 (3. Kxc4 $2 Bd6 4. g6 Bf8 $11) 3... Rf1
4. Nf4 $1 {Nowotny} Rxf4 5. b8=Q Rf6+ 6. gxf6 $18) 3. g6 (3. Nf4 $2 Rxf4 4. g6
c3 5. b8=Q Rf5+ 6. Ka4 Bxb8 $11) 3... c3 {Again Nowotny? No!} 4. Ng1 $3 (4. Nf4
$2 Rxf4 5. b8=Q Rf5+ 6. Ka4 Bxb8 $11) (4. g7 $2 c2 5. f8=Q c1=Q $11) 4... Bxg1
(4... Kxg1 5. g7 $18) (4... Rxg1 5. f8=Q c2 6. Qf3+ $18) 5. g7 (5. b8=Q $2 Rb1+
) 5... c2 6. f8=Q c1=Q 7. Qh8+ Bh2 8. Qxh2+ $1 Kxh2 9. b8=Q+ Kh3 10. Qh8+ $18
1-0

[Event "2.Pr Probleemblad 2019-2020"]
[Site ""]
[Date "2019.07.01"]
[Round ""]
[White "Hlinka, Michal"]
[Black "Garcia, Mario"]
[Result "1-0"]
[SetUp "1"]
[FEN "4N3/6p1/2Np3b/1P1k4/8/8/5K2/8 w - - 0 1"]
[PlyCount "19"]
[EventDate "2018"]

1. Kf3 $1 (1. Ke2 $2 Kc5 2. Nd4 Kb6 3. Kf3 (3. Nxd6 Kc5 4. N6f5 Bf4 5. Kd3 Be5
$11) 3... d5 $1 (3... g6 $2 4. Ke4 $18) 4. Ke2 g5 5. Nd6 g4 $11) (1. Nc7+ $2
Kc5 2. Nd4 Kxd4 3. b6 Be3+ $1 4. Kf3 Kd3 5. b7 Ba7 $11) 1... Kc5 2. Nd4 d5 (
2... g6 3. Nc7 Kb6 4. Nd5+ Ka5 5. Ke4 $1 $18 Bg7 6. Ne6 Kxb5 7. Nxg7 $18) 3.
Nc7 g6 (3... Bg5 4. Nce6+ {fork}) 4. Ke2 $1 {domination} ({Try :} 4. Nce6+ $2
Kb6 5. Ke2 Bc1 $1 {(1)} (5... Ka5 $2 6. Kd3 Kb6 (6... Bc1 7. Nb3+ Kxb5 8. Nxc1
g5 9. Nd4+ $18) 7. Kc3 Ka5 8. Nd8 g5 9. N8c6+ Kb6 10. Kb4 g4 11. Nf5 Bd2+ 12.
Ka4 $18) 6. Kd3 (6. Nb3 Ba3 {/h6=}) 6... Bb2 $1 (6... Ka5 $2 7. Nb3+ $18) 7.
Kc2 Ba1 $1 8. Kb3 Ka5 $1 9. Nc2 Bf6 $11) (4. Kg4 $2 Be3 $1 5. Nce6+ Kb6 6. Kf3
Bd2 $11) 4... Kb6 (4... Bc1 5. Nb3+ $18 {fork}) (4... g5 5. Nce6+ $1 (5. Nf5 $2
Bf8 6. Ne6+ Kxb5 7. Nxf8 d4 $11) 5... Kb6 6. Kf3 Ka5 7. Kg4 $18) (4... Bg5 5.
Nce6+ {fork}) 5. Nxd5+ (5. Nce6 $2 Bc1 $11 {similar to (1)}) 5... Kc5 6. Nc7
Kxd4 7. b6 Bf4 8. Ne6+ {fork} Kd5 9. Nxf4+ Kc6 10. Nd5 $18 1-0

[Event "3.Pr Probleemblad 2019-2020"]
[Site ""]
[Date "2019.04.01"]
[Round ""]
[White "Slumstrup Nielsen, Steffen"]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "6qk/7p/5Pr1/2P1RK2/3B3p/8/4P3/8 w - - 0 1"]
[PlyCount "33"]
[EventDate "2018"]

1. Re8 Rg5+ {Black has no choice but to start giving checks.} (1... Qxe8 2. f7+
$18) 2. Kf4 {Of course, White cannot step on to the e-file.} Rg4+ 3. Kf3 Rg3+ (
3... Rxd4 4. f7 {is an easy win.}) 4. Kf2 Rg2+ 5. Ke1 (5. Kf1 {(?)} Rg1+ 6. Kf2
(6. Bxg1 $2 Qxe8) 6... Rg2+ 7. Ke1 {is a waste of time.}) 5... Rxe2+ $1 {
What now? Must the king go East or West?} (5... Rg1+ 6. Kd2 $18) 6. Kf1 {East!}
(6. Kd1 $2 Re4 7. Bc3 Re1+ {(still immune from capture)} 8. Kc2 Re2+ 9. Kb1
Re1+ 10. Kb2 Re2+ 11. Ka3 $2 (11. Ka1 $11) 11... Ra2+ 12. Kb4 Ra4+ $1 {and
Black even wins.}) (6. Rxe2 $2 Qg3+ $1 $11) 6... Re1+ {It seems to make little
difference if the rook gives checks on the e-file or the g-file?} ({The rook
on e8 is immune as well.} 6... Rxe8 7. f7+ $16) 7. Kf2 (7. Rxe1 $2 Qc4+) 7...
Re2+ 8. Kf3 (8. Rxe2 $2 Qg3+) 8... Re3+ {Still immune} 9. Kf4 Re4+ 10. Kf5 {
Back to the king's starting square.} (10. Rxe4 $2 Qg3+) 10... Rxd4 $1 (10...
Re5+ $2 11. Bxe5 {(finally!)} Qxe8 12. f7+ Qxe5+ 13. Kxe5 $18) 11. f7 Qf8 $1 (
11... Rg4 {eg} 12. c6) 12. Rxf8+ Kg7 13. Rh8 $1 (13. Ra8 $2 Kxf7 14. c6 Rc4 $11
(14... Rd5+ $11)) 13... Kxf7 14. c6 Rc4 (14... Rd5+ {changes nothing}) 15. c7
Rxc7 16. Rxh7+ Kg8 17. Rxc7 1-0

[Event "4.Pr Probleemblad 2019-2020"]
[Site ""]
[Date "2020.10.01"]
[Round ""]
[White "Gurgenidze, David"]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "1K6/8/Pkpp4/7R/8/P3p3/2P2p2/1N6 w - - 0 1"]
[PlyCount "15"]
[EventDate "2020"]
[SourceVersionDate "2020.05.25"]

{[#]} 1. Nd2 f1=Q (1... exd2 2. Rh1 Kxa6 3. Rb1 Ka5 4. Kc7 Ka4 5. Kxd6 Kxa3 6.
c4 Ka2 7. Rf1 Kb3 8. Ke5 Kxc4 9. Ke4 Kc3 10. Ke3) 2. Nxf1 e2 3. Ne3 e1=Q 4. a7
Qxe3 5. a8=N+ Ka6 6. Nc7+ Kb6 7. Rb5+ cxb5 8. Nd5+ 1-0

[Event "5.Pr Probleemblad 2019-2020"]
[Site ""]
[Date "2019.04.01"]
[Round ""]
[White "Hlinka, Michal"]
[Black "Kekely, Lubos"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/6P1/8/8/8/Kp1b2p1/P7/5n1k w - - 0 1"]
[PlyCount "17"]
[EventDate "2017"]

1. g8=Q bxa2 ({main} 1... g2 2. Qe6 $1 Nh2 3. Kxb3 $1 Bf1 4. Qe4 Ba6 5. a4 Bc8
6. a5 Bg4 7. a6 Bf3 8. Qxf3 Nxf3 9. a7 g1=Q 10. a8=Q {phoenix}) 2. Qd5+ $1 ({
them. try} 2. Qxa2 $2 g2 $1 {zz} 3. Kb4 (3. Qe6 Nh2 {zz, compare with main
after 4.Qe6! zz} 4. Ka4 Bc2+ $1 5. Ka3 g1=Q 6. Qc6+ Qg2 $19) 3... Nh2 4. Qe6
Bf1 5. Qe4 Ba6 6. Qc2 (6. Ka5 Bc8 7. Qc2 Bg4 8. Qe4 Bf3 $19) 6... Bb7 $19) 2...
g2 3. Qxa2 $1 {zz} (3. Kxa2 $2 Be2 4. Qe4 Bd1 5. Qd5 Bg4 6. Qe4 Nh2 7. Kb3 Bf3
$19) 3... Nh2 (3... g1=Q 4. Qd5+ $11) 4. Qe6 $1 {zz} (4. Qd5 $2 Be2 $19) 4...
Bb5 5. Qe4 $1 (5. Kb3 $2 Bf1 6. Qe4 Ba6 7. Qc2 Bb7 $19) 5... Bf1 6. Ka4 $1 (6.
Ka2 $2 Ba6 7. Qc2 g1=Q 8. Qc6+ Qg2+ $19) 6... Ba6 7. Qc2 $1 Bf1 (7... Bb7 8.
Qb1+ $11) (7... g1=Q 8. Qc6+ $11) 8. Qe4 Ba6 9. Qc2 {positional draw. Meredith.
Phoenix. Reciprocal zugzwangs.} 1/2-1/2

[Event "1.hm Probleemblad 2019-2020"]
[Site ""]
[Date "2019.10.01"]
[Round ""]
[White "Afek, Yochanan"]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "4B3/8/8/8/K5p1/8/n2N3P/7k w - - 0 1"]
[PlyCount "11"]
[EventDate "2019"]

1. Kb3 Nc1+ 2. Kc2 $1 Ne2 (2... Na2 3. Bf7 $1 Nb4+ 4. Kc3 Na6 5. Bc4 Nc7 6. Nf1
Kg1 7. Kd4 $18) 3. Kd3 $1 Ng1 ({Main} 3... Nf4+ 4. Ke4 $1 Nh3 (4... Ne2 5. Ke3)
5. Nf1 Kg2 6. Bb5 Ng1 7. Kf4 Nf3 8. Ne3+ $1 Kh3 (8... Kxh2 9. Nxg4+ Kg2 10. Bc6
$18) 9. Nxg4 Nxh2 10. Ne3 $1 {Domination.}) (3... Nc1+ 4. Ke3 Kxh2 5. Bf7 {
Domination} g3 6. Nf3+ {wins.}) 4. h4 $3 gxh3 5. Bc6+ Kh2 6. Nf1# {Model mate
following 2 active self block.} 1-0

[Event "2.hm Probleemblad 2019-2020"]
[Site ""]
[Date "2020.10.01"]
[Round ""]
[White "Slumstrup Nielsen, Steffen"]
[Black ""]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/8/1kp3r1/8/1PpP1R1K/8/8/8 w - - 0 1"]
[PlyCount "17"]
[EventDate "2020"]
[SourceVersionDate "2020.04.11"]

{White's king is cut off, so Black's must be cut off as well. [#]} 1. Rf5 c5 $3
{This trick is known from A. Kubbel, 64, 1935 (HHDBV #68051)} (1... Rd6 2. Rc5
Rxd4+ 3. Kg3 $11) 2. bxc5+ (2. Rxc5 $2 Rc6 3. Kg4 c3 $1) (2. dxc5+ $2 Kb5 3.
c6+ Kxb4 4. c7 Rc6 $19) 2... Kc6 3. Rf8 {White must check the Black king from
behind, or Black plays Rg1 and c3 winning.} Rg7 (3... Kd5 4. Rd8+ Ke4 5. d5 c3
6. d6 c2 7. Re8+ Kf4 8. Rf8+ $11) (3... c3 4. Rf3 $11) 4. Rc8+ (4. Rf5 $2 Rd7)
4... Rc7 $1 (4... Kd5 5. Rd8+ Ke4 6. d5 c3 7. d6 c2 8. Re8+ Kd5 9. Re1 Kxc5 10.
Rc1 $11) 5. d5+ Kd7 (5... Kb7 6. Re8 $11 (6. Rh8 $11)) {Now the rook must
return to the first rank. But along which file?} 6. Rh8 $3 (6. Rg8 $2 Rxc5 7.
Kg3 {Blocking the way of the rook.} (7. Rg1 Kd6 $19) 7... c3 $19) (6. Ra8 $2
Rxc5 7. Kg3 Rxd5 8. Ra4 (8. Kf3 Kc6) 8... Rd4 {this move is possible because
White's rook is on the wrong side of the c4-panw.} 9. Kf3 Kc6 10. Ra5 Kb6 11.
Rh5 Rd2 $1 (11... c3 $2 12. Ke2 $11) 12. Ke3 c3 13. Rg5 Rd1 14. Rg2 Kc5 (14...
Kb5) (14... Ka5 $19)) (6. Rf8 $2 Rxc5 7. Kg3 Rxd5 8. Rf4 Rc5 9. Kf2 c3 {
Again the king is in the way of the rook.}) (6. Rb8 $2 Rxc5 7. Kg4 Rxd5 8. Kf3
Kc6) 6... Rxc5 7. Kg3 c3 (7... Rxd5 8. Rh4 $1 $11) 8. Rh1 c2 (8... Rxd5) 9. Rc1
$11 {1/2-1/2} 1/2-1/2

[Event "3.hm Probleeblad 2019-2020"]
[Site ""]
[Date "2019.10.01"]
[Round ""]
[White "Keith, Daniel"]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "6N1/q7/4P3/7k/1B2K3/8/3N4/8 w - - 0 1"]
[PlyCount "15"]
[EventDate "2019"]

1. Nf6+ $1 (1. e7 $2 Qa8+ $10) (1. Ne7 $2 Qb6 $10) 1... Kg5 $1 (1... Kg6 2. Nd5
$18 {et 2... Dh7 sans échec}) 2. Nd5 (2. Bc3 $2 Qa4+ {ou De7 =}) (2. e7 $2
Kxf6 3. e8=Q Qb7+ $10 4. Kd3 Qxb4 5. Ne4+ Kg7) 2... Qh7+ 3. Ke3 $1 (3. Kd4 $2
Qh8+ 4. Kd3 Qh3+ $10) (3. Ke5 $2 Qh8+ {ou Dh2+ =}) 3... Qa7+ $1 (3... Kf5 4. e7
$18) (3... Qh3+ 4. Nf3+ Kg4 5. Nf6+ $18 {par exemple} Kg3 6. Ng5 Qh6 7. Nfe4+
Kg4 8. e7) 4. Ke2 $1 (4. Kf3 $2 Qd4 $1 5. Ne4+ Kf5 $10) (4. Kd3 $2 Qa6+ $10)
4... Qa6+ 5. Kf3 Qxe6 (5... Kf5 {est sans espoir} 6. e7 Qe6 7. Ne3+ Ke5 (7...
Kf6 8. Ne4+) 8. Ndc4+ $1 (8. Bc3+ $2 Kd6 9. Bb4+ Kd7 $10) 8... Kf6 9. Nb6 $1
Kf7 10. Nbd5 Qh3+ 11. Ke2 $18 {Et le pion blanc est trop fort. Le roi blanc
progressera sous la protection de ses pièces.}) (5... Qd3+ 6. Ne3 Kf6 7. e7
Qg6 8. Nd5+ Kf7 9. Ne4) 6. Ne4+ Kf5 (6... Kh6 7. Bf8+ $18) (6... Kh4 7. Be1+
$18) 7. Ne7+ Ke5 8. Bc3# 1-0

[Event "4.hm Probleemblad 2019-2020"]
[Site ""]
[Date "2020.01.01"]
[Round ""]
[White "Hlinka, Michal"]
[Black "Kekely, Lubos"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "1B6/8/8/6k1/4qNP1/8/R4PN1/4r1nK w - - 0 1"]
[PlyCount "16"]
[EventDate "2020"]
[SourceVersionDate "2019.12.24"]

{[#]} 1. Kh2 (1. Ra3 $2 Nf3+ 2. Nxe1 Qxe1+ 3. Kg2 Kxg4 4. Nh3 Qe4 5. Rc3 Nh4+
6. Kf1 Qb1+ 7. Ke2 Qb2+ 8. Kd3 Qxb8 $19) 1... Kxg4 (1... Rb1 2. Ra7 Rxb8 3.
Rg7+ Kf6 4. Nh5+ Ke6 5. Kxg1 Qf3 6. Rg6+ Kd7 7. Rg7+ Kc6 8. Rg6+ Kb7 9. Ng3 Ka7
10. Rg7+ Ka8 11. Rg5 Rb1+ 12. Nf1 Rb2 13. Rf5 Qxg4 14. Ng3 $11) 2. Ra3 $1 (2.
Nxe1 $2 Qxe1 3. Kg2 Nf3 4. Nh3 Qe4 {as after 1.Ra3?}) 2... Nf3+ (2... Qf3 3.
Nxe1 $1 Qxa3 4. Kxg1 $11) (2... Qh7+ 3. Nh3 Nxh3 4. Rg3+ Kf5 5. Rxh3 Rh1+ 6.
Kxh1 Qxh3+ 7. Bh2 $11) 3. Rxf3 Kxf3 (3... Qxf3 4. Nxe1 $11) 4. Nh3 $1 (4. Nxe1+
$2 Qxe1 5. Nh3 Qe7 $19) 4... Rh1+ (4... Qb1 {or Kg4} 5. Nxe1+ Qxe1 6. Bg3 $11)
5. Kxh1 Qb1+ 6. Ne1+ $1 (6. Kh2 $2 Qxb8+ $19) 6... Qxe1+ (6... Ke2 7. Bg3 $11)
7. Ng1+ Kxf2 (7... Kg4 8. Bg3 $11) 8. Bg3+ Kxg3 1/2-1/2

[Event "5.hm Probleemblad 2019-2020"]
[Site ""]
[Date "2020.01.01"]
[Round ""]
[White "Krug, Peter"]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "8/4N3/8/6qp/6k1/1R5p/6N1/6KB w - - 0 1"]
[PlyCount "13"]
[EventDate "2020"]
[SourceVersionDate "2019.12.24"]

{[#]} 1. Ne3+ Kh4+ 2. Bg2 hxg2 3. N7f5+ (3. N3f5+ Kg4 4. Rg3+ Kf4 5. Rxg5 Kxg5
$11) 3... Kh3 4. Ra3 $3 (4. Rc3 Qf6 5. Nd5+ Qxc3 $11) (4. Rd3 h4 $1 {zz}) 4...
h4 (4... Qd8 5. Nxg2+ Kg4 6. Nh6+ Kg5 7. Nf7+) 5. Rd3 {mutual zz} Qg6 (5... Qh5
6. Nd5+ Kg4 7. Nf6+ $18) (5... Qf6 6. Nd5+ $18) 6. Nc4+ Kg4 7. Ne5+ 1-0

[Event "comm. Probleemblad 2019-2020"]
[Site ""]
[Date "2019.04.01"]
[Round ""]
[White "Arestov, Pavel"]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "8/3p4/3p4/8/3P4/4r3/R1P4p/5K1k w - - 0 1"]
[PlyCount "19"]
[EventDate "2018"]

1. Kf2 $1 (1. Ra1 $2 Rf3+ 2. Ke2+ Kg2 $19) 1... Re1 $1 (1... Re8 2. Ra1+ $18) (
1... Re2+ 2. Kxe2 Kg2 3. Ra1 h1=Q 4. Rxh1 Kxh1 5. Kf2 Kh2 6. c3 $1 $18) 2. Kxe1
Kg2 $1 (2... Kg1 3. Ke2 h1=Q 4. Ra1+ $18) 3. c3+ $3 ({Try:} 3. c4+ $2 Kg3 4.
Rxh2 Kxh2 5. Kf2 Kh1 $3 6. Kf3 Kg1 7. Ke4 Kf2 8. Kd5 Ke3 9. c5 dxc5 10. dxc5
Kd3 11. Kd6 Kd4 12. Kxd7 Kxc5 $11) 3... Kg3 4. Rxh2 Kxh2 5. Kf2 $1 d5 (5... Kh3
6. Kf3 Kh4 7. Ke4 $18) 6. Kf3 Kg1 (6... Kh3 7. Kf4 d6 8. Kf5 $18) 7. Kf4 Kf2 8.
Ke5 Ke3 9. Kxd5 Kd3 10. c4 $1 {win.} 1-0

[Event "comm. Probleemblad 2019-2020"]
[Site ""]
[Date "2019.07.01"]
[Round ""]
[White "Van Espen, Eddy"]
[Black ""]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/2p5/8/2PK4/8/4p3/2k5/1N6 w - - 0 1"]
[PlyCount "17"]
[EventDate "2019"]
[SourceVersionDate "2019.06.07"]

{[#]} 1. Na3+ (1. Kd4 $2 e2 2. Na3+ Kb3 $19) 1... Kd3 (1... Kc3 2. Nb5+ Kd3 3.
Nd4) 2. Nc4 c6+ (2... e2 3. Ne5+ Ke3 4. Ng4+ Kf4 5. Nf2 Ke3 6. Ng4+ Kd2 7. Ne5
Ke3 8. Ng4+ $11) 3. Kxc6 e2 (3... Kxc4 4. Kb6 e2 5. c6 e1=Q 6. c7 Qe6+ 7. Kb7
Qe7 8. Ka8 $1 $11) 4. Ne5+ (4. Nb2+ $2 Kd4 5. Nd3 Kxd3 6. Kd7 (6. Kb7 e1=Q 7.
c6 Qe4 $19) 6... e1=Q 7. c6 Kc4 8. c7 Qd1+ $19) 4... Ke4 5. Nf3 (5. Nd3 $2 Kxd3
{zie 3.Nb2+}) 5... Kxf3 6. Kd7 $1 (6. Kb7 $2 e1=Q 7. c6 Qe4 $19) 6... e1=Q 7.
c6 Qd2+ 8. Kc8 Ke4 9. c7 1/2-1/2

[Event "comm. Probleemblad 2019-2020"]
[Site ""]
[Date "2019.07.01"]
[Round ""]
[White "Avni, Amatzia"]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "2N5/1Rp4N/kp6/4q3/1P3pp1/3K4/P2BP3/8 w - - 0 1"]
[PlyCount "15"]
[EventDate "2018"]
[SourceVersionDate "2019.04.23"]

{White holds a large material advantage, but his pieces are disorganized and
scattered. [#]} 1. Ra7+ Kb5 2. a4+ Kc6 3. b5+ Kd5 ({after} 3... Kc5 4. Ng5 {
(probably Nf6 is also decisive)} Qxg5 5. Rxc7+ Kd5 6. Rc6 $18) 4. Nxb6+ $1 {
a knight is sacrificed to open the 7th rank for the WR.} cxb6 5. Rd7+ Kc5 (5...
Ke6 6. Nf8+) 6. Ng5 $1 {A second knight is sacrificed, this time to divert the
BQ to inferior square.} (6. e4 fxe3 7. Bxe3+ Kb4 8. Rd4+ Kb3 9. Ng5 Qh2 $1 {
is insufficient. The text-move intends the lethal 7.Ne4+.}) 6... Qxg5 7. e4 $1
{Last traps:} g3 (7... fxe3 8. Bxe3+) 8. Rd4 $1 (8. Rd5+ {?} Qxd5+ 9. exd5 g2
10. Bxf4 g1=Q 11. Be3+ Qxe3+ 12. Kxe3 Kxd5 $11) (8. Be1 {?} g2 9. Rd4 Qg3+ $1
10. Bxg3 g1=Q $11) 1-0

[Event "comm. Probleemblad 2019-2020"]
[Site ""]
[Date "2019.10.01"]
[Round ""]
[White "Krug, Peter"]
[Black "Garcia, Mario"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/Qp5q/1N3p2/P4p2/4P3/6Pp/4K3/6kb w - - 0 1"]
[PlyCount "23"]
[EventDate "2019"]

{Theme: Elimination of the threat of stalemate with the coronation of the
minor piece.} 1. Nd5+ $1 (1. Nc4+ $2 Kh2 2. Qf2+ Bg2 3. Qf4 Qe7 $11) 1... Kh2
2. Qf2+ Bg2 3. Qf4 fxe4 4. Nxf6 Qg7 (4... Bf3+ 5. Kf2 e3+ (5... Qe7 6. g4+ Kh1
7. Qc1+ $18) 6. Kxf3 Qd3 7. g4+ $18) 5. Ng4+ Qxg4+ (5... Kh1 6. Qc1+ Bf1+ 7.
Qxf1#) 6. Qxg4 Bf3+ 7. Qxf3 exf3+ 8. Kf2 b5 (8... Kh1 9. g4 $18) 9. a6 $1 (9.
axb6 $2 Kh1 10. b7 h2 11. b8=Q $11 {stalemate} ({or} 11. Kxf3 Kg1 12. b8=Q
h1=Q+ $11)) 9... b4 10. a7 b3 11. a8=B $1 (11. a8=R {/Q?} b2 12. Rb8 b1=Q 13.
Rxb1 $11 {stalemate}) 11... b2 12. Be4 $18 1-0

[Event "comm. Probleemblad 2019-2020"]
[Site ""]
[Date "2019.10.01"]
[Round ""]
[White "Tarasiuk, Vladislav"]
[Black ""]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "6R1/8/3b4/7N/3p2P1/2p5/2K3Pr/7k w - - 0 1"]
[PlyCount "19"]
[EventDate "2019"]
[SourceVersionDate "2019.09.12"]

{[#]} 1. Kd3 Rxg2 2. Kxd4 Rxg4+ $1 (2... c2 3. Rc8 Rd2+ 4. Ke3 $11) 3. Rxg4 c2
4. Rh4+ Kg1 5. Rg4+ Kf1 6. Nf4 $1 (6. Rh4 $2 Bc5+ $1 7. Kxc5 c1=Q+ $19) 6...
Bc5+ $1 7. Kxc5 c1=Q+ 8. Kd6 $1 (8. Kd5 $2 Qd1+ $19) 8... Qd1+ 9. Nd5 Qxg4 10.
Ne3+ 1/2-1/2

[Event "comm. Probleemblad 2019-2020"]
[Site ""]
[Date "2019.10.01"]
[Round ""]
[White "Ostmoe, Geir Sune"]
[Black ""]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "Q5K1/3r4/5Pk1/3P4/4q3/R7/3p4/8 w - - 0 1"]
[PlyCount "32"]
[EventDate "2018"]

1. f7 $1 Rxf7 2. Qc6+ (2. Rg3+ $2 Kh5 3. Kxf7 Qf5+ {(or Qf4+)} 4. Ke7 Qe5+ 5.
Kf7 d1=Q {wins.}) 2... Kg5 3. Rh3 $1 Kg4 $1 (3... d1=Q 4. Qh6+ {draws, e.g.}
Kf5 5. Rh5+ Kg4 6. Rh4+ Kf3 7. Rxe4) 4. Qe6+ Qxe6 5. dxe6 Rg7+ $1 (5... d1=Q 6.
exf7 {draws.}) 6. Kxg7 d1=Q 7. Rh7 $1 {The only right place for the rook,
preparing for stalemate.} (7. e7 $2 Qd4+ {(or Qd7)} 8. Kf7 Qd5+ 9. Kf8 Qf5+ 10.
Kg7 Qe6 11. Kf8 Qf6+ {wins.}) 7... Qd6 8. Kf7 Qd5 9. Kf8 $1 Qf3+ 10. Kg8 $1 (
10. Rf7 $2 Qa8+ {wins.}) 10... Qd5 11. Kf8 Qf5+ 12. Rf7 Qxe6 {Allowing a
well-known stalemate, but otherwise the pawn would have reached e7.} (12... Qe5
13. Rg7+ Kf5 14. e7 {draws.}) 13. Rg7+ Kf5 14. Rf7+ Kg6 15. Rg7+ Kh6 (15... Kf6
16. Rg6+ $1 Kxg6 {stalemate.}) 16. Rh7+ $1 Kxh7 {stalemate.} 1/2-1/2

[Event "comm. Probleemblad 2019-2020"]
[Site ""]
[Date "2020.01.01"]
[Round ""]
[White "Tarasiuk, Vladislav"]
[Black ""]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/1k1p4/1p1PpK2/Pp6/1P5n/4P3/8/8 w - - 0 1"]
[PlyCount "14"]
[EventDate "2020"]
[SourceVersionDate "2019.12.24"]

{[#]} 1. a6+ $1 (1. Ke7 $2 bxa5 $19) 1... Kxa6 2. Ke7 Nf5+ $1 (2... Kb7 3. Kxd7
Nf5 4. e4 $1 Nd4 5. Ke8 $1 Nc6 6. d7 Kc7 7. e5 Nd8 8. Ke7 Nb7 9. Ke8 $11) 3.
Kxd7 Nxe3 4. Kc7 $3 (4. Kxe6 $2 Kb7 5. d7 Kc7 6. Ke7 Nd5+ $19) (4. Ke7 Nd5+ 5.
Kxe6 Nxb4 6. d7 Nc6 $19) 4... Nd5+ 5. Kb8 (5. Kc8 $2 Nf6 6. d7 Nxd7 7. Kxd7 e5
$19) 5... Nf6 $1 (5... Nxb4 $4 6. d7 (6. Kc7 $2 Nd5+ 7. Kb8 Nf6 8. Ka8 Ka5 $1
$19) 6... Nc6+ 7. Kc7 $18) 6. Ka8 $1 (6. d7 $2 Nxd7+ $19) 6... e5 7. d7 Nxd7
1/2-1/2

[Event "comm. Probleemblad 2019-2020"]
[Site ""]
[Date "2020.07.01"]
[Round ""]
[White "Kiryakov, Peter"]
[Black "Arestov, Pavel"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "6nr/4bk1p/8/8/8/8/1K5Q/8 w - - 0 1"]
[PlyCount "25"]
[EventDate "2020"]
[TimeControl "600"]

1. Kb1 $1 {White needs xa2 to give perpetual check. Black has 2 main options A)
1...h6 and B) 1...h5} (1. Qh5+ Kf8 $1 {-+} (1... Kg7 2. Qg4+ {=})) 1... h6 (
1... Nf6 2. Qa2+ Kf8 3. Qa8+ Ne8 4. Qf3+ Bf6 5. Qa3+ Kg7 6. Qg3+ {[%eval 32766,
0] = positional draw}) ({B)} 1... h5 2. Qa2+ Kf8 (2... Kg7 3. Qg2+ {see main
line}) 3. Qa8+ Kg7 4. Qg2+ Kh6 5. Qg3 $3 Bg5 (5... Nf6 6. Qe3+) (5... Rh7 6.
Qxg8 {=}) 6. Qb8 $1 {.} Bf6 7. Qf4+ Kg6 8. Qg3+ Bg5 9. Qb8 h4 10. Qc8 Bf6 (
10... Kg7 11. Qg4 Kh6 12. Qc8 {[%eval 32764,0] = positional draw}) 11. Qg4+ Kf7
12. Qc4+ Kf8 13. Qc8+ Kg7 14. Qg4+ {[%eval 32762,0] = positional draw}) 2. Qc2
$1 {Preventing Rh8-h7 ( 2. Qb2? Rh7! -+ ) and preparing perpetual check. All
other attempts of perpetual checks fail} (2. Qh5+ $2 Kf8 $1 3. Qf3+ Bf6 $1 (
3... Nf6 $2 4. Qa8+ Kg7 5. Qg2+ Kh7 6. Qc2+ {=}) 4. Qa8+ Kg7 5. Qg2+ Bg5 6.
Qb7+ (6. Qb2+ Nf6 7. Qb7+ Kg6 {-+}) 6... Ne7 $1 7. Qb2+ Bf6 8. Qg2+ Ng6 {-+}) (
2. Qa2+ Kg7 ({or} 2... Kf8 3. Qa8+ Kg7 4. Qg2+ Bg5 {-+}) 3. Qb2+ Bf6 4. Qg2+
Bg5 5. Qb7+ Ne7 {-+}) 2... Kf8 (2... Kg7 3. Qc3+ {see main line}) 3. Qc8+ Kg7
4. Qc3+ $1 (4. Qg4+ $2 Bg5 5. Qd7+ Ne7 {-+}) 4... Nf6 (4... Bf6 5. Qg3+ Kf8 6.
Qb8+ Kf7 7. Qb3+ Kg7 8. Qg3+ {[%eval 32760,0] = positional draw}) 5. Qg3+ Kf7 (
5... Kh7 6. Qd3+) 6. Qb3+ Kf8 7. Qb8+ Ne8 8. Qf4+ Bf6 9. Qb4+ Kg7 10. Qb7+ Kf8
11. Qb4+ Be7 12. Qf4+ Nf6 13. Qb8+ {[%eval 32758,0] = positional draw} 1/2-1/2

[Event "comm. Probleemblad 2019-2020"]
[Site ""]
[Date "2020.07.01"]
[Round ""]
[White "Afek, Yochanan"]
[Black ""]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "1R6/1N6/8/8/8/1p2K3/p7/r1k5 w - - 0 1"]
[PlyCount "21"]
[EventDate "2020"]

1. Nc5 $1 (1. Na5 $2 Rb1 2. Rc8+ Kb2 3. Nc4+ Kc3 $1 (3... Ka1 4. Kd2 $1 b2 5.
Na3 Rd1+ 6. Kxd1 b1=Q+ 7. Rc1 $11) 4. Nd2+ Kb4 5. Rb8+ Ka3 6. Nc4+ Ka4 7. Kd4
$5 a1=Q+ 8. Kc5 Qa3+ $1 $19) 1... Kc2 (1... Rb1 2. Nd3+ Kd1 3. Nf2+ Kc2 4. Rc8+
Kb2 5. Nd3+ Ka1 6. Kd2 Rb2+ 7. Kd1 $1 Rb1+ 8. Kd2 {Positional draw}) 2. Nxb3
Re1+ $1 (2... Rb1 3. Nd4+ Kd1 4. Rh8 $11) 3. Kd4 $1 ({Thematic try:} 3. Kf2 $2
Rh1 $1 4. Na1+ (4. Nd4+ Kd3 $1 5. Rd8 Kc4 $1 6. Nc2 Rh2+ $19) 4... Rxa1 5. Ra8
Kb3 6. Rb8+ Kc4 7. Ra8 Rh1 $1 $19) 3... Rb1 4. Na1+ $1 {4. Nd4? is impossible.}
Rxa1 5. Rc8+ Kb3 6. Rb8+ Ka4 7. Ra8+ Kb4 8. Rb8+ Ka5 9. Ra8+ Kb5 10. Kc3 $1
Rc1+ 11. Kb2 1/2-1/2

[Event "comm. Probleemblad 2019-2020"]
[Site ""]
[Date "2020.07.01"]
[Round ""]
[White "Avni, Amatzia"]
[Black ""]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "1K1nk3/8/3P3B/2P5/8/8/4r3/8 w - - 0 1"]
[PlyCount "19"]
[EventDate "2020"]
[SourceVersionDate "2020.04.08"]

{[#]} 1. Kc8 {threat 2.d7+ Ke7 3.Bg5+} Rg2 (1... Re5 2. d7+ Ke7 3. Bf8+ $1 Kxf8
4. Kxd8 Rxc5 $11 {stalemate}) 2. d7+ Ke7 3. Bf4 (3. Bf8+ $2 Kxf8 4. Kxd8 Rg8 $1
$19) 3... Rg8 4. Bd6+ Ke6 5. Kc7 $1 (5. Bc7 $2 Kd5 $1 6. Bxd8 Kc6 $19) 5... Kd5
6. Be7 Ne6+ 7. Kb6 $1 (7. Kb7 $2 Rg7 $1 $19) 7... Rb8+ 8. Ka7 Rg8 9. Kb6 {
draw by repetition.} Rb8+ (9... Rh8 10. c6 $11) 10. Ka7 1/2-1/2

[Event "comm. Probleemblad 2019-2020"]
[Site ""]
[Date "2020.07.01"]
[Round ""]
[White "Becker, Richard"]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "1K6/2pQ4/5p2/8/8/8/q3Np2/1k6 w - - 0 1"]
[PlyCount "47"]
[EventDate "2015"]

1. Qd1+ (1. Nc3+ $2 Kc2 2. Nxa2 f1=Q $11) 1... Kb2 2. Qc1+ Kb3 3. Qc3+ Ka4 4.
Qd4+ Ka3 5. Qc5+ Ka4 ({MAIN} 5... Kb2 6. Qc3+ Kb1 7. Qc1# {model mate}) 6. Qa7+
Kb4 7. Qxa2 f1=Q 8. Qb2+ Kc5 (8... Kc4 9. Qd4+ Kb3 (9... Kb5 10. Nc3+ Kc6 11.
Qd5+ Kb6 12. Na4+ Ka6 13. Nc5+ Kb5 14. Nd3+ $18) 10. Qc3+ Ka2 (10... Ka4 11.
Qb2 $18) 11. Qa5+ Kb2 (11... Kb3 12. Nd4+ $18) 12. Qb4+ Kc2 13. Nd4+ $18) 9.
Kxc7 $1 Qd1 (9... Qf2 10. Qb6+ $18) 10. Qc3+ Kb5 (10... Kd5 11. Qc6+ Ke5 12.
Qe8+ Kf5 13. Qh5+ Ke6 14. Nf4+ $18) 11. Nd4+ Ka4 12. Kd6 $1 ({TRY} 12. Kb6 $2
Qb1+ 13. Ka6 Qf1+ 14. Ka7 Qd1 $1 15. Kb6 Qb1+ 16. Kc5 Qf5+ $1 17. Nxf5 {
stalemate}) 12... Qb1 13. Qc6+ Ka3 14. Nb5+ Kb3 15. Qd5+ Kb2 16. Qd4+ Kb3 17.
Qe3+ Kb4 18. Qc5+ Kb3 19. Qa3+ Kc2 (19... Kc4 20. Qc3+ Kxb5 21. Qc6+ Ka5 22.
Qa8+ $18) 20. Qc3+ Kd1 21. Qd4+ Kc1 22. Qe3+ Kb2 23. Qc3+ Ka2 24. Qa3# {
echo model mate} 1-0

