[Event "MSV-2021"]
[Site "?"]
[Date "2019.??.??"]
[Round "?"]
[White "Martin Minski"]
[Black "2021/1-CCXIII."]
[Result "1-0"]
[SetUp "1"]
[FEN "8/3p4/7p/8/B2P4/3k4/pK5P/8 w - - 0 1"]
[PlyCount "23"]
[EventDate "2018.??.??"]

1. d5 a1=Q+ $1 (1... Kc4 2. Bb3+ $18 (2. Bc6 $2 Kc5 3. Ba8 Kb6 4. Kxa2 Ka7 5.
Kb3 Kxa8 6. Kc4 Kb7 7. Kc5 (7. Kd4 Kb6 $11) 7... Kc7 8. d6+ Kb7 $11)) 2. Kxa1
Kc4 3. Bc6 $1 (3. Bxd7 $2 Kxd5 $11) 3... Kc5 4. Ba8 $1 Kb6 5. Kb2 Ka7 6. Kc3
Kxa8 7. Kd4 Kb7 8. Ke5 Kc7 9. h3 $1 (9. h4 $2 h5 $11 {zz}) 9... h5 (9... Kd8
10. d6 ({or} 10. Kf6 $18) 10... Kc8 11. Kf6 Kb7 12. Kf7 Kb6 13. Ke8 Kc6 14. Ke7
h5 15. h4 {zz}) 10. h4 {zz} Kb6 11. Kd6 Kb7 12. Kxd7 $18 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2020.??.??"]
[Round "?"]
[White "Michal Hlinka & Luboš Kekely"]
[Black "2021/2-CCXIV."]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "r1B1r1k1/8/8/2R1n1K1/8/R7/1p6/8 w - - 0 1"]
[PlyCount "23"]
[EventDate "2020.??.??"]

1. Be6+ $1 (1. Rb3 $2 Nd3 2. Rc6 Rexc8 3. Rg6+ Kf8 4. Rf6+ Ke8 5. Re6+ Kd7 $19)
1... Nf7+ (1... Kf8 2. Rxa8 (2. Rb3 $2 Rxe6 3. Rxb2 Nf7+ $19) 2... Rxa8 (2...
b1=Q 3. Rxe8+ Kxe8 4. Rxe5 $11) 3. Rb5 $11) (1... Kg7 2. Rc7+ Kf8 3. Rh3 Re7 4.
Rh8+ $11) (1... Rxe6 2. Rxa8+ $11) 2. Bxf7+ Kxf7 3. Rf5+ $1 (3. Rb3 $2 Reb8 $1
4. Rcb5 Ra5 $1 $19 {pin}) 3... Kg7 (3... Ke6 4. Re3+ Kd6 5. Rd3+ Kc6 6. Rc3+
Kd6 7. Rd3+ {switchback- perpetual check}) 4. Rg3 $1 (4. Rxa8 $2 Rxa8 5. Rb5 (
5. Rf1 Ra1 $19) 5... Ra5 $19) 4... Re3 $1 (4... Ra3 5. Rg2 Re2 6. Rg4 Re4 7.
Rg1 $11) (4... b1=Q 5. Kf4+ $1 Kh6 6. Rh3+ Kg7 7. Rg3+ {switchback} Kh8 8. Rh3+
$1 {switchback - perpetual check} (8. Rh5+ $2 Qh7 $19)) 5. Rg2 $1 (5. Rg1 $2
Ra1 6. Rg2 Re2 7. Rxe2 (7. Rg3 Re7 $19) 7... Rg1+ 8. Kf4 b1=Q $19) (5. Rg4 $2
Re4 6. Rg3 b1=Q $19) 5... Re2 6. Rg3 $1 {switchback} (6. Rg4 $2 Re4 7. Rg1 Rb4
8. Kh5+ Kh8 9. Rb1 (9. Rff1 Ra5+ 10. Kg6 Rb6+ $19) 9... Ra1 $19) 6... Ra3 7.
Rg4 $1 (7. Rg1 $2 Ra1 8. Rg3 Re7 $19) 7... Ra4 8. Rg3 {switchback} (8. Rg1 $2
Ra1 9. Rff1 Rxf1 10. Rxf1 Rg2+ 11. Kh4 (11. Kf4 Rf2+ $19) 11... Rc2 12. Rb1 Kf6
$19) 8... b1=Q 9. Kh5+ Kh7 10. Rf7+ Kh8 11. Rf8+ Kh7 12. Rf7+ {switchback -
perpetual check. Fight against dangerous black pawn in four rooks ending.
Synthesis of three perpetual checks. Switchbacks.} 1/2-1/2

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Arestov, Pavel"]
[Black "2021/3-CCXV."]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "K7/5N2/3B3P/8/6rk/3N3q/8/8 w - - 0 1"]
[PlyCount "23"]
[EventDate "2021.??.??"]

1. h7 (1. Be7+ $2 Kg3 $19) 1... Qg2+ $1 (1... Qh1+ 2. Kb8 Qb1+ 3. Kc8 Rc4+ 4.
Kd8 Qb6+ 5. Ke7 $11) 2. Ka7 $1 (2. Kb8 $2 Rg8+ $1 3. hxg8=Q Qxg8+ 4. Kc7 Qxf7+
$19) 2... Ra4+ (2... Qa2+ 3. Kb6 $11) 3. Kb6 Qg1+ 4. Kb5 $1 (4. Kc6 $2 Ra6+ 5.
Kb5 (5. Kd5 Qg2+ 6. Kc5 Rc6+ 7. Kd4 Qg7+ 8. Kd5 Qxh7 9. Kxc6 Qxf7 $19) 5...
Qb6+ 6. Kc4 Ra8 7. h8=Q+ Rxh8 8. Nxh8 Qa6+ $19) 4... Ra8 5. h8=Q+ Rxh8 (5...
Kg4 6. Nfe5+) 6. Nxh8 Qb1+ 7. Kc4 Qa2+ $1 (7... Qc2+ 8. Kd4 Qa4+ 9. Ke3 $11) 8.
Kb4 $1 (8. Kd4 Qa1+ $19) 8... Qa6 $1 (8... Qd2+ 9. Kc4 Qa2+ 10. Kb4 {pos. draw}
) (8... Qd5 9. Ng6+ Kg5 10. Be7+ $11) 9. Be7+ $1 (9. Ng6+ $2 Kg5 10. Ngf4 Qxd6+
$19) 9... Kg3 (9... Kh5 10. Nf4+ Kg4 11. Nhg6 $11) 10. Nc5 $1 Qa1 $1 (10...
Qb6+ 11. Kc4 $11) 11. Bf6 $3 {Puante} (11. Ng6 $2 Qb1+ $19) (11. Nf7 $2 Qe1+
12. Kb5 Qf1+ 13. Kb6 Qxf7 $19) 11... Qxf6 12. Ne4+ {fork, draw} 1/2-1/2

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Nielsen, Steffen"]
[Black "2021/4-CCXVI."]
[Result "1-0"]
[SetUp "1"]
[FEN "8/8/2K4P/6p1/4r3/6kP/b2B4/1R6 w - - 0 1"]
[PlyCount "29"]
[EventDate "2020.??.??"]

{[#]} 1. Re1 Bb1 (1... Rc4+ 2. Kb6 Rc8 (2... Rh4 3. Bxg5 Rxh3 4. Re3+) 3. Bxg5
Kxh3 4. h7 Rh8 5. Bf6 Rxh7 6. Rh1+) (1... Rxe1 2. Bxe1+ $18) (1... Rh4 2. Bxg5
$18) 2. Rxb1 (2. Rxe4 $2 Bxe4+ $11) 2... Re6+ 3. Kd5 Rxh6 4. h4 $3 Rxh4 (4...
gxh4 5. Bxh6) (4... Kxh4 5. Rh1+) 5. Be1+ Kf3 6. Rb3+ $1 (6. Bxh4 $2 gxh4 7.
Ke5 h3 8. Kf5 h2) 6... Kg2 7. Rb2+ $1 (7. Bxh4 $2 gxh4 8. Ke4 h3 9. Kf4 (9.
Rb2+ Kg3 10. Ke3 h2 11. Rb1 Kg2 $11) 9... h2 10. Rb2+ Kh3) 7... Kf3 8. Bxh4
gxh4 9. Ke5 h3 10. Kf5 Kg3 11. Rb3+ Kg2 12. Kg4 h2 13. Rb2+ Kg1 14. Kg3 h1=Q (
14... h1=N+ {eg} 15. Kf3) 15. Rb1# 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Samilo, Vladimir"]
[Black "2021/5-CCXVII"]
[Result "1-0"]
[SetUp "1"]
[FEN "5R2/2q2p1p/6p1/pp4pk/bp1b3P/5P1K/4Q1P1/8 w - - 0 1"]
[PlyCount "25"]
[EventDate "2021.??.??"]

1. f4+ $1 (1. g4+ $2 Kh6 2. hxg5+ Kxg5 $1 (2... Kg7 3. Qe8 $1 $18) 3. Qd2+ Qf4
$19) 1... g4+ $1 (1... Kh6 2. fxg5+ Kg7 3. Qe8 $1 h6 4. Rh8 $1 hxg5 5. hxg5 $18
) 2. Qxg4+ Kh6 3. Rg8 Qc3+ $1 (3... Bf6 4. Qg5+ $1 Bxg5 5. fxg5+ {(hxg5+)} Kh5
6. g4#) 4. g3 Bf6 5. Qg5+ $1 Bxg5 6. fxg5+ $3 ({Try:} 6. hxg5+ $2 Kh5 7. Rh8
Qc8+ $1 8. Rxc8 Bd1 9. Rh8 (9. Rc1 $2 Bg4+ 10. Kg2 Be6 $1 11. Kf3 Bd5+ $19)
9... Bg4+ 10. Kg2 Be2 11. Kf2 Bc4 12. Kf3 Bd5+ $1 {(no 13.Kf4?? - because f4
blocking)}) 6... Kh5 7. Rh8 $1 Qc8+ $1 (7... Qxh8 $2 8. g4#) 8. Rxc8 Bd1 9. Rh8
$1 Bg4+ 10. Kg2 Be2 $1 11. Kf2 $1 (11. Rxh7+ $2 {(11.Re8? Bg4 =)} Kg4 12. Rxf7
b3 $1 13. Rf4+ Kh5 14. Kh3 b2 15. Rf8 Bg4+ 16. Kg2 Be2 17. Kh3 {positional draw
}) 11... Bc4 (11... b3 12. Kxe2 b2 13. Kf3 b1=Q 14. Rxh7#) 12. Kf3 Bd5+ 13. Kf4
$1 $18 {Thematic choice on 6th move (unblocking sguare f4), distant foresight.}
1-0

[Event "MSV-2021"]
[Site ""]
[Date "2021.??.??"]
[Round "?"]
[White "Krug, Peter"]
[Black "2021/12-711"]
[Result "1-0"]
[SetUp "1"]
[FEN "r6Q/B3q2p/2Pr2pN/7k/p3p1pP/4P1P1/p4RPK/8 w - - 0 1"]
[PlyCount "35"]
[EventDate "2021.??.??"]

1. Ng8 {!} (1. Qxa8 {?} a1=Q 2. Bd4 Rxd4 3. exd4 Kxh6 {=}) 1... Rxg8 2. Qxg8
a1=Q 3. Bd4 {!} (3. Rf7 {?} h6 {!!}) 3... Qe1 {!} 4. Rf5+ {!} (4. Bf6 {?} Rxf6
5. Rxf6 Qc7 6. Rf5+ Kh6 {=}) 4... gxf5 5. Bf6 {!} Qxg3+ 6. Kxg3 f4+ 7. exf4
Rd3+ 8. Kh2 Qxf6 9. Qxh7+ Qh6 10. Qxe4 Re3 {!} 11. Qxe3 Qxc6 12. Qe7 {+- win eg
} (12. Qe5+ {?} Kg6 13. h5+ Kf7 {=}) 12... g3+ 13. Kxg3 Qg6+ 14. Kh2 Kh6 15.
Qe5 Qg7 16. Qd6+ Qg6 (16... Kh7 17. Qd3+ Kh8 18. f5) 17. Qd4 Qe8 18. f5 {
unterminated} 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Krug Peter-Garcia, Mario"]
[Black "2021/6-CCXVIII."]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "r3N2k/1p4pp/p7/8/1q1PQ1PP/1r1p4/2b3K1/R3R3 w - - 0 1"]
[PlyCount "19"]
[EventDate "2021.??.??"]
[TimeControl "300"]

1. Nd6 $1 ({Try:} 1. Rf1 $2 Rb2 2. Kg1 Bb3 3. Qe5 Rxe8 4. Qxe8+ Bg8 {-+}) ({or
} 1. Nxg7 $2 d2 2. Qe5 dxe1=Q $19) 1... Qxd6 (1... Qd2+ 2. Kg1 $11) 2. Rxa6 $1
(2. Qe8+ $2 Qf8 $1 $19) 2... Qg3+ $1 3. Kxg3 d2+ 4. Re3 $1 (4. Kh2 $2 Rg8 5.
Raa1 Bxe4 6. Rxe4 Rd3 7. Rd1 Rd8 $19) 4... Rf8 $1 (4... Rc8 5. Qxc2 $11) 5. Rf6
$1 (5. Ra1 $2 Bxe4 6. Rxb3 Bc2 7. Rxb7 Kg8 8. Rbb1 Bxb1 9. Rxb1 Rd8 10. Rd1
Rxd4 $19) 5... gxf6 6. Qxc2 Rxe3+ 7. Kf2 $8 (7. Kf4 $2 Re2 $1 8. Kf3 Rfe8 $19)
7... Rh3 8. Kg2 Rxh4 9. Kg3 Rh1 10. Qxd2 {=} 1/2-1/2

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Richardson, Itay"]
[Black "2021/7-CCXIX-2."]
[Result "1-0"]
[SetUp "1"]
[FEN "8/1p1p4/2Ppq3/4B1b1/2k5/2p1p2N/4pR2/R3K1N1 w Q - 0 1"]
[PlyCount "15"]

{White moves and wins/Itay Richardson} 1. Rf4+ $1 (1. Rg2 $2 dxe5 2. Nxg5 Qxc6
3. Rxe2 Qh6 4. N5f3 d6 $10) (1. c7 $4 exf2+ 2. Kxf2 Bh4+ 3. Kf3 Qd5+ 4. Kg4
Qg8+ 5. Kxh4 dxe5 $19) 1... Bxf4 2. c7 $1 (2. cxb7 $2 Qd5 $1 3. Ra4+ Kb3 4.
b8=Q+ Kxa4 $10) (2. Bxf4 $4 dxc6 $19) 2... Bxe5 (2... Qg8 3. Bxf4 Qc8 4. Bxd6
$18) 3. c8=Q+ Kd3 (3... Kb4 4. Rb1+ Qb3 5. Qxb7+ $18) 4. Nf4+ $1 (4. Nxe2 $2
Qxh3 5. Rd1+ Kc2 6. Rc1+ Kd3 $10) 4... Bxf4 5. Nxe2 Bg3+ $1 (5... Qe5 6. Ra4
Bh2 7. Kd1 d5 (7... c2+ 8. Qxc2#) 8. Nc1#) 6. Nxg3 (6. Kd1 $4 Qb3+ 7. Kc1 Qc2#)
(6. Kf1 $4 Qh3+ 7. Kg1 Qh2+ 8. Kf1 Qf2#) 6... Qg4 (6... Qb3 7. Qxd7 $18) 7.
Qc4+ $3 (7. Rd1+ Kc2 8. Rc1+ Kxc1 9. Qxc3+ Kb1 $10) 7... Qxc4 (7... Kxc4 8.
Ra4+ Kd3 9. Rxg4 c2 10. Ne2 $18) 8. O-O-O# 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Gurgenidze=D Minski=M"]
[Black "2021/7-CCXIX-1."]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "4k3/8/3Pr3/8/1b6/2R3K1/6Pp/6B1 w - - 0 1"]
[PlyCount "32"]
[EventDate "2021.??.??"]

1. Rc8+ (1. d7+ $2 Kxd7 2. Rd3+ Rd6 $19) 1... Kd7 2. Rc7+ {main A:} Kxd6 ({
main B:} 2... Kd8 3. Rc1 (3. Bxh2 $2 Bxd6+ $19) 3... Be1+ $1 (3... h1=Q 4. Bb6+
Kd7 5. Rxh1 $11) (3... hxg1=Q 4. Rxg1 $11) 4. Rxe1 (4. Kxh2 $2 Rh6# {model mate
}) 4... h1=N+ $1 5. Kh3 $1 (5. Kf3 $2 Rxe1 $19) (5. Kh2 $2 Rh6# {model mate})
5... Rxe1 6. Kh2 $1 Ng3 7. Bb6+ Kd7 8. Kxg3 $11) 3. Rc1 Be1+ $1 (3... h1=Q 4.
Bc5+ Bxc5 5. Rxh1 $11) (3... hxg1=Q 4. Rxg1 $11) 4. Rxe1 (4. Kxh2 $2 Rh6# {
model mate}) 4... h1=N+ $1 5. Kf3 $1 (5. Kh3 $2 Rxe1 $19) (5. Kh2 $2 Rh6# {
model mate}) 5... Rxe1 6. Bh2+ $1 Ke6 7. g4 Kf6 8. Kg2 Rd1 9. Bf4 Kg6 10. Be3
$1 Rb1 11. Bf4 Rd1 12. Be3 Rb1 13. Bf4 Re1 14. Bh2 Kg5 15. Bg1 Kxg4 (15... Ng3
16. Bf2 $11) 16. Kxh1 Kg3 {stalemate} 1/2-1/2

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Pavel Arestov (Russia) & Danie"]
[Black "2021/12-715"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/2r3p1/4P3/6P1/8/8/6B1/2k4K w - - 0 1"]
[PlyCount "13"]
[EventDate "2021.??.??"]

1. Kg1 $1 (1. Kh2 $2 Rc3 2. Be4 Re3 $19) (1. Bh3 $2 Kd2 {/Rc3 -+}) (1. Be4 $2
Kd2 $19) 1... Rc5 $1 (1... Kd2 2. Kf2 {main}) (1... Rc2 2. Kf1 $10) 2. Kf2 (2.
Bh3 $2 Rc3 $1 3. Bf5 Re3 4. Kg2 Kd1 $1 (4... Kd2 $2 5. Kf2 $10 {zz BTM}) 5. Kf2
Kd2 $19 {zz WTM}) 2... Kd2 (2... Rxg5 3. Kf3 Re5 (3... Kd2 4. Bh3 Kd3 5. Kf4)
4. Bh3 Kd2 5. Kf4 $10) (2... Re5 3. Bh3 Kd2 4. Bg4 {main}) 3. Bh3 (3. Kf3 $2
Re5 4. Bh3 Re3+ 5. Kf4 (5. Kg4 Rxe6) 5... Rxh3 $19) 3... Re5 $1 (3... Rxg5 4.
Kf3 Kd3 5. Kf4 $10) 4. Bg4 $1 (4. Kf3 $2 Re3+ $1 $19 5. Kg4 Rxe6 6. Kf5 Ra6)
4... Kd3 (4... Rxg5 5. Kf3 Re5 6. Kf4 $10) 5. Kf3 g6 6. Kf4 Re3 (6... Kd4 7.
Bd1 Rxe6 8. Bc2 $10) 7. Bf5+ $1 1/2-1/2

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "M.Pasman"]
[Black "2021/12-716"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/5P2/2P2p1r/1BnpPr2/1k1K4/6B1/4P3/8 w - - 0 1"]
[PlyCount "29"]
[EventDate "2021.??.??"]

1. c7 $1 (1. f8=Q fxe5+ 2. Kxd5 Rxf8) 1... Rh8 2. Be8 $1 (2. Bc6 Ne6+ 3. Kxd5
Nxc7+) 2... Ne6+ 3. Kxd5 Nxc7+ 4. Kc6 $1 (4. Kd6 $2 Nxe8+) 4... Rxe8 $1 (4...
Nxe8 5. e6 $1 Rc5+ (5... Rg5 6. e7) 6. Kd7 Rd5+ 7. Kc6 $1 Rc5+ 8. Kd7 $11) (
4... Ne6 5. Kd6 $1 Nc5 6. e6) 5. e6 $3 (5. fxe8=Q Nxe8 $19) ({logical try :} 5.
Kxc7 Re7+ 6. Kd6 Rxf7 {and e5 pawn only plays against white, and there is no
Ke6 move}) 5... Rxe6+ (5... Rc5+ 6. Kd7 Rd8+ 7. Kxd8 $11) 6. Kxc7 (6. Kd7 $2
Rd5+ $1 7. Kxc7 Re7+) 6... Re7+ 7. Kd6 Rxf7 8. Ke6 $1 {double attack} Rf1 (8...
Rg7 9. Be1+ Kc4 10. Kxf5 $11) 9. Kxf7 Kc5 (9... Kc3 10. e4 $1) 10. e4 $1 (10.
Bh4 f5 11. Ke6 Kd4 $1 12. e3+ Ke4 $1 $19) 10... Kd4 11. Bh4 $1 Ke5 12. Ke7 Rf3
13. Kf7 $1 Rf4 14. Bg3 Kxe4 15. Bxf4 1/2-1/2

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Minski=M Slumstrup Nielsen=S"]
[Black "2021/8-CCXX."]
[Result "1-0"]
[SetUp "1"]
[FEN "8/4p2b/8/1B5p/6k1/8/K1Q5/5q2 w - - 0 1"]
[PlyCount "15"]
[EventDate "2021.??.??"]

1. Qc8+ (1. Be2+ $2 Kg5 $1 2. Qc5+ Qf5 $11) 1... Qf5 (1... Bf5 2. Qg8+ $18) 2.
Bd7 e6 $1 3. Bxe6 Bg8 $1 {stalemate maltese cross} 4. Qxg8+ (4. Qc4+ $2 Kg3 {
/Kg5=}) 4... Kh4 $1 5. Qd8+ $1 (5. Bxf5 $2 {stalemate}) 5... Qg5 6. Qd4+ Kg3 7.
Qg1+ Kh4 (7... Kf4 8. Qc1+ $18 {skewer}) 8. Qh2# {mate with self-block on g5} (
{loss of time} 8. Qh1+ $2 Kg3 9. Qg1+ Kh4) ({loss of time} 8. Qf2+ $2 Qg3 9.
Qf6+ Qg5 10. Qd4+ Kg3 11. Qg1+ Kh4) 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Kumichev, Vladimir"]
[Black "2021/12-722"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/8/8/8/8/6K1/P1n4B/7k w - - 0 1"]
[PlyCount "9"]
[EventDate "2021.??.??"]
[SourceDate "2021.06.21"]

{[#]} 1. a4 (1. Kh3 $2 Na3 2. Bd6 Nc4 3. Bc5 Nb6 4. Bd4 Na4 5. Kg3 Nb6 6. Kf3
Na4 7. Ke3 Kg2 8. Kd3 Kf3 9. Kc4 Ke4 10. a3 Kf5 11. Kb5 Ke6 $11) 1... Nd4 2. a5
Nc6 3. a6 Nb4 4. a7 Nc6 5. a8=R $1 $18 (5. a8=Q $2 {patt.}) 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Kumichev, Vladimir"]
[Black "2021/12-723"]
[Result "1-0"]
[SetUp "1"]
[FEN "7K/Q7/8/4B3/8/8/6q1/7k w - - 0 1"]
[PlyCount "23"]
[EventDate "2021.??.??"]
[SourceDate "2021.06.21"]

{[#]} 1. Qa1+ Qg1 2. Qa2 $1 (2. Qb2 $2 Qf2 $1) 2... Qg2 (2... Qf2 3. Qd5+ Qg2
4. Qd1+ Qg1 5. Qf3+ Qg2 6. Qh5+ Kg1 7. Bd4+ Kf1 8. Qd1#) 3. Qb1+ Qg1 4. Qe4+
Qg2 5. Qe1+ Qg1 6. Qd2 $1 Qf2 7. Qd5+ Qg2 8. Qd1+ Qg1 9. Qf3+ Qg2 10. Qh5+ Kg1
11. Bd4+ Kf1 12. Qd1# 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Mikitovics, János "]
[Black "2021/12-718"]
[Result "1-0"]
[SetUp "1"]
[FEN "B7/P2PK3/kpN2p2/P1R5/8/q4P2/4N3/3r4 w - - 0 1"]
[PlyCount "39"]
[EventDate "2021.??.??"]

1. Bb7+ $1 (1. Ke8 $2 {selfunpin} Qxc5 $1 2. Ned4 $1 Rxd4 (2... Qh5+ $2 3. Kd8
Rxd4 4. Nxd4 Kxa7 5. Kc8 $18) 3. Nxd4 Qe5+ $3 (3... Qxd4 $2 4. d8=Q $18) 4. Kd8
Qxd4 (4... Kxa7 $2 5. Nc6+ $18 {fork}) 5. Bc6 Kxa7 $11) (1. Kd8 $2 {selfunpin}
Qxc5 $1 2. Kc8 (2. Ned4 Rxd4 $11) 2... Qf8+ $1 3. d8=Q Rxd8+ $11) 1... Kxb7 2.
d8=N+ $1 (2. d8=Q $2 Qxc5+ $19 (2... Rxd8 $2 3. Nxd8+ $18 {main line})) (2. a6+
$2 Ka8 $19 (2... Kc7 $2 3. a8=N#)) 2... Rxd8 (2... Ka8 3. Ne6 $1 Qd3 4. Nc7+
$18) 3. Nxd8+ Kxa7 4. axb6+ Kxb6 5. Ne6 $1 Qxf3 6. Rb5+ $3 {Sacrifice} Kxb5 (
6... Kc6 7. N2d4#) (6... Ka6 7. N2d4 $18 (7. Nc7+ $2 Ka7 8. Nd4 Qe4+ $1 9. Nce6
Qh7+ $1 10. Kd6 Qh2+ 11. Kc6 Qh1+ $3 12. Rd5 {selfpin} f5 $3 $11 {Sacrifice,
Against the Troitsky variant !})) (6... Ka7 7. N2d4 $1 Qh1 8. Rb2 $3 (8. Nf5 $2
Qh7+ $1 9. Kd6 Qh5 $1 10. Nfd4 Qh2+ $11) 8... f5 9. Kd6 Qh6 10. Rb1 $3 Qh2+ 11.
Kc6 $18) 7. N2d4+ $3 (7. N6d4+ $2 Kc4 8. Nxf3 Kd3 $11 (8... f5 $2 9. Nf4 $18 {
main line})) 7... Kc4 8. Nxf3 f5 9. Nf4 $1 {Troitsky variant, White wins, eg.}
({Thematic try} 9. Ned4 $2 Kd3 10. Kf6 Ke3 $1 (10... Ke4 $2 11. Kg5 $1 Ke3 12.
Kh4 $1 Kf2 13. Kh3 f4 14. Kh2 $1 $11) 11. Kg5 Kf2 $1 12. Kf4 {/h4} Kg2 $1 $11 {
Against the Troitsky variant !}) 9... Kc3 10. Ke6 Kb3 11. Kd5 Kb2 12. Kc4 Kc2
13. Kb4 Kb2 14. Ne1 Ka2 15. Nfd3 f4 16. Nf3 Kb1 17. Kb3 Ka1 18. Nd2 f3 19. Nb4
f2 20. Nc2# {Remark: White also wins against Black's strongest defense under
the 50-move rule. Keywords: Troitsky lines; promotions; selfpin and selfunpins;
mutual sacrifices; fork.} 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Kiel, Horatio"]
[Black "2021/11-CCXXIII"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/3p1B2/2p1p2P/2N5/5r2/8/4p1P1/4K1k1 w - - 0 1"]
[PlyCount "11"]
[EventDate "2021.??.??"]
[SourceDate "2021.07.12"]

{[#]} 1. Bh5 (1. h7 $2 Rh4 2. Bg6 Kxg2 3. Kxe2 Kg3 4. Nxd7 Kf4 5. Nf6 Rh6 $1 (
5... Rh2+ $2 6. Kd3 Rh6 7. Ne4 e5 8. Kc4 Rh2 9. Kc5 Rh6 10. Kb6 $18) 6. Ne4 Rh3
7. Nf6 Rh6 $11) 1... Rf6 2. h7 Rh6 3. Bg6 Kxg2 4. Nxd7 Kg3 5. Ne5 Kf4 6. Nf7 {
wins.} 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Tarasiuk, Vladislav"]
[Black "2021/9-CCXXI."]
[Result "1-0"]
[SetUp "1"]
[FEN "k6N/pp2n2p/3P4/PP5p/3p4/2p4P/1n1p1P2/7K w - - 0 1"]
[PlyCount "19"]
[EventDate "2021.??.??"]
[SourceDate "2021.07.31"]

{[#]} 1. d7 d1=Q+ 2. Kg2 $1 (2. Kh2 $2 Nc6 3. bxc6 bxc6 4. a6 Qb3 5. d8=Q+ Qb8+
6. Qxb8+ Kxb8 $19) 2... Nc6 3. bxc6 bxc6 4. a6 $3 (4. d8=Q+ $2 Kb7 5. Qd7+ Ka6
6. Qxc6+ Kxa5 7. Qc5+ Ka4 $19) 4... Qb3 5. d8=Q+ Qb8 6. Qd7 Qg8+ 7. Kh2 $1 (7.
Kf1 $2 Qc4+ 8. Kg1 Qxa6 9. Nf7 Nc4 $1 $19) (7. Ng6 $2 Qd5+ $1 8. Qxd5 cxd5 $19)
7... Qb3 $1 8. Kg1 $3 (8. Nf7 $2 Nc4 $1 9. Qxc6+ Kb8 10. Qd5 Qb6 11. Qxc4 Qc7+
$1 12. Qxc7+ Kxc7 $11) (8. Ng6 $5 Qb5 $1 9. Nf4 Qxa6 10. Ne6 Qb7 11. Nc7+ Kb8
12. Qd8+ Qc8 13. Na6+ Kb7 14. Nc5+ Kb8 15. Nd7+ Kb7 $11) 8... Qg8+ 9. Ng6 $1 (
9. Kh1 $2 Qd5+ $1 $19) 9... Qxg6+ 10. Kh2 $1 {wins.} 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Peter Krug"]
[Black "2021/12-712"]
[Result "1-0"]
[SetUp "1"]
[FEN "1N1N1K2/2n1P3/8/6bP/8/3k4/8/4n3 w - - 0 1"]
[PlyCount "27"]
[EventDate "2021.??.??"]
[TimeControl "300"]

1. Na6 {!} Bxe7+ 2. Kxe7 Nd5+ 3. Kf7 Nf3 (3... Ke4 4. h6 Nf3 5. Nc6 Nf4 6. Nc5+
Kf5 7. Ne7+ Kg4 8. Ne4) 4. Nb4+ {! try} (4. h6 {?} Ne5+ 5. Ke6 Nf6 6. Nf7 Neg4
{=}) 4... Nxb4 5. h6 Nd5 6. Kg7 Ng5 7. Kg6 Ne4 8. h7 Ne7+ 9. Kg7 (9. Kh6 {?}
Nf5+ 10. Kg6 Ne7+) 9... Nf5+ 10. Kf8 Nh4 11. Ne6 {!} (11. Nf7 {?} Ng6+ 12. Kg7
Nh8 {!=}) 11... Ng6+ 12. Kg7 Nh8 13. Nc5+ {!} Nxc5 14. Kxh8 {wins.} 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Arestov Pavel-Hlinka, Michal"]
[Black "2021/10-CCXXI-2."]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "1B6/1b6/pP2k2p/1P6/R7/2K3n1/6p1/8 w - - 0 1"]
[PlyCount "28"]
[EventDate "2021.??.??"]

1. Ra1 Nf1 2. Bh2 $1 Nxh2 3. bxa6 Bxa6 $1 4. Rxa6 $1 (4. Rg1 $2 Bb7 $19 {
[%emt 0:00:01]}) 4... g1=Q 5. b7+ Kd5 $1 (5... Kd7 $2 6. b8=Q $11) 6. Ra5+ (6.
b8=Q $2 Qc1+ $1 7. Kd3 Qf1+ 8. Kc3 Qxa6 $19) 6... Ke4 (6... Kc6 $2 7. b8=Q $11)
7. Ra4+ (7. b8=Q $2 Qc1+ $19 {/Qe1}) 7... Ke3 8. Ra3 $1 (8. b8=Q $2 Qc1+ $19) (
8. Ra8 $2 Qg7+ $19) 8... Qg8 (8... Qc1+ 9. Kb4+ Kd4 10. b8=Q Qc4+ 11. Ka5 Qc5+
12. Ka4 $1) 9. Kb4+ $1 (9. Kb2+ $2 Kd2 10. Ra8 Qg7+ $19) 9... Kd4 10. Ra8 Qc4+
11. Ka5 Qc5+ 12. Ka6 Qc6+ 13. Ka7 Qc5+ 14. Ka6 $1 $11 (14. Kb8 $2 Nf3 $19)
14... Qb4 1/2-1/2

[Event "MSV 2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Krug Peter - Garcia Mario"]
[Black "2021/12-713"]
[Result "1-0"]
[SetUp "1"]
[FEN "4N1R1/P4Kpk/5pp1/8/8/8/3p2r1/2B2rq1 w - - 0 1"]
[PlyCount "15"]
[EventDate "2021.??.??"]

1. a8=Q Qa7+ $1 (1... Kh6 2. Bxd2+ Rxd2 3. Rh8+ Kg5 4. Qa5+ Kg4 5. Qxd2 $18) (
1... dxc1=Q 2. Rh8+ Kxh8 3. Nxf6+ Qc8 4. Qxc8#) 2. Qxa7 dxc1=Q 3. Rh8+ $3 (3.
Nxg7 $2 Re1 4. Nf5 gxf5 5. Rxg2 Kh6 {=}) 3... Kxh8 4. Kf8 Qh6 (4... Qc5+ 5.
Qxc5 Kh7 6. Qc8 $18) 5. Qf7 Qh7 6. Nd6 Ra1 (6... Rb2 7. Qb3 $1 $18) (6... Rc1
7. Qc4 $1 $18) (6... Rd1 7. Qd5 $1 $18) (6... g5 7. Qe6 {/d5/c4} g6 8. Nf7+ $18
) 7. Qa2 Raxa2 (7... Qh4 8. Qg8#) 8. Nf7# 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Castellano, Lorenzo"]
[Black "2021/12-720"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/2pk4/7p/R1P1r1p1/P1P5/8/2K5/8 w - - 0 1"]
[PlyCount "17"]
[EventDate "2021.??.??"]

{[%evp 0,17,-65,-108,-122,107,121,102,723,731,730,764,761,771,769,771,788,787,
804,808] [#]} 1. c6+ $1 {Despite the two pawns passed and united for Black
there is no escape.} Kd6 2. Rxe5 Kxe5 3. a5 Kd6 (3... g4 4. Kd2 g3 (4... Ke4 $2
5. Ke2 h5 6. a6 $18) 5. Ke3 h5 6. a6 $18) 4. a6 Kxc6 5. c5 $1 h5 6. Kd2 h4 7.
Ke3 h3 8. Kf2 g4 9. Kg3 $18 {zugzwang} 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Didukh, Sergiy"]
[Black "2021/12-710"]
[Result "1-0"]
[SetUp "1"]
[FEN "n2b4/3PR3/p1r2Bp1/1p4P1/kp6/8/KP6/8 w - - 0 1"]
[PlyCount "25"]
[EventDate "2018.??.??"]

1. b3+ (1. Re4 $2 Bc7 $1 (1... Nb6 $2 2. Bxd8 Nxd7 3. b3#) (1... Rxf6 2. gxf6
Bxf6 3. Re6) 2. Be5 (2. Be7 Ka5) 2... Bd8 $1 (2... Bb6 $2 3. Bc3) 3. Bf6 Bc7
$11) 1... Ka5 2. Re6 $1 Rc2+ ({main} 2... Rxe6 3. Bxd8+ Rb6 (3... Nb6 4. Bxb6+
Rxb6 5. d8=N $1 (5. d8=Q $2 {stalemate with Rb6.})) 4. Bxb6+ Nxb6 5. d8=R $1 (
5. d8=Q $2 {stalemate with Nb6.})) 3. Kb1 Rc7 ({main} 3... Nc7 4. Rd6 $1 (4.
Bxd8 $2 Rc1+ 5. Kxc1 {stalemate with Nc7.}) (4. Re8 $2 Rd2) 4... Rc5 5. Kb2 $1
{White can wait with Kb1-b2, Black can't.} (5. Bd4 $2 Ne6 6. Rxe6 Rd5 $11) 5...
Ne6 6. Rxe6 Rc7 7. Rd6 $1 (7. Bxd8 $2 {stalemate with Rc7.})) 4. Bxd8 Nb6 5.
Rc6 $1 Rxc6 (5... Rxd7 6. Bxb6#) 6. Bxb6+ Rxb6 7. d8=N $1 Rb8 (7... Rd6 8. Nb7+
) 8. Nc6+ Kb6 9. Nxb8 a5 10. Nd7+ Kc6 11. Ne5+ ({or} 11. Nf8) 11... Kd6 12.
Nxg6 Ke6 13. Nh4 $1 {(minor promotions from Liburkin=M, Trud 1935)} 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Sprenger, Jan"]
[Black "2021/12-717"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/q2P4/6Kp/2bR4/4r2k/2p4p/7P/1R6 w - - 0 1"]
[PlyCount "11"]
[EventDate "2021.??.??"]

1. d8=Q+ Qe7 $1 {The two thematic white tries now fail due to two different
obstacles. 2. Rh5+? fails to 4... Re2! and 2. Re5? fails to 2...Rg4+ followed
by 3... Be3+!.} (1... Be7 2. Rh5+ Kg4 3. Qd1+ Kf4 4. Rf5+ Ke3 5. Rf3#) 2. Rb4
$3 {Regardless of how Black takes on b4, he must give up one of the two
obstacles. White then chooses his plan accordingly. Note that the correction
try 2. Re1? prevents 2...Rg4+, but allows 2...Rxe1 and 4... Qe4+!.} ({logical
try} 2. Re5 $2 Rg4+ $1 (2... Rxe5 $2 3. Rb4+ $1 Bxb4 4. Qd4+ Re4 5. Qf2+ Kg4 6.
Qg3#) 3. Kxh6 Be3+ $1 4. Rxe3 Qxd8 $19) ({logical try} 2. Rh5+ $2 Kg4 3. Qd1+
Re2 $1 4. Qa4+ Re4 5. Qd1+ Re2 6. Rb4+ $2 Bxb4 $1 $19) ({correction try} 2. Re1
$2 Rxe1 $1 (2... Rg4+ 3. Kxh6 Qxd8 4. Rh5#) 3. Rd4+ Bxd4 4. Qxd4+ Qe4+ $1 $19)
2... Bxb4 ({main} 2... Rxb4 {Now there is no Re4-e2 any more and the attack
with Rh5+ and Qd1+ succeeds:} 3. Rh5+ (3. Re5 $4 Qxd8 4. Re4+ Rxe4 $1) 3... Kg4
4. Qd1+ {no Re4-e2} Kf4 5. Rf5+ Ke3 6. Rf3+ Ke4 7. Qd3+ Ke5 8. Rf5+ Ke6 9. Qd5#
) 3. Re5 $3 (3. Rh5+ $4 Kg4 4. Qd1+ Re2 $19) 3... Rg4+ (3... Qxd8 4. Rxe4#) (
3... Rxe5 4. Qd4+ Re4 5. Qf2+ Kg4 6. Qg3# {/Qf5+ and Qh5#}) 4. Kxh6 {no bishop
check on the c1-h6 diagonal} Rg6+ (4... Qxd8 5. Rh5#) 5. Kxg6 Qxd8 6. Re4# {
model mate} 1-0

[Event "MSV-2021 "]
[Site ""]
[Date "2021.??.??"]
[Round "?"]
[White "Krug Peter-Garcia, Mario"]
[Black "2021/12-714"]
[Result "1-0"]
[SetUp "1"]
[FEN "4Kb1k/6p1/R1R2pp1/4N3/3p4/1p2p3/1p4N1/8 w - - 0 1"]
[PlyCount "9"]
[EventDate "2021.??.??"]
[TimeControl "300+20"]

1. Kf7 $1 (1. Kxf8 $2 fxe5 2. Nf4 b1=Q $11 {=}) 1... fxe5 ({main :} 1... Kh7 2.
Nxg6 b1=Q 3. N2f4 Qh1 (3... Kh6 4. Ra5 f5 5. Nh4+ Kg5 6. Nfg2 Kg4 7. Rg6+ $18)
(3... Bb4 4. Ra8 Kh6 5. Rxf6 gxf6 6. Kxf6 Qxg6+ 7. Nxg6 Kh5 8. Kf5 $18) 4. Ra5
$1 (4. Nxf8+ $2 Kh6 5. Ra5 e2 6. Rc1 Qb7+ 7. Kg8 g6 8. N4e6 b2 9. Rh1+ Qxh1 10.
Ra7 Kh5 11. Rh7+ Kg4 12. Rxh1 d3 $11) 4... e2 5. Rc1 $1 (5. Nxe2 $2 b2 6. Nxf8+
Kh6 7. Rb6 b1=Q 8. Rxb1 Qxb1 $11) 5... Qxc1 (5... Qb7+ 6. Kxf8 Qb8+ 7. Kf7 Qb7+
8. Ne7 $18) 6. Rh5#) 2. Nf4 $1 {with two lines : A)} (2. Nh4 $2 Kh7 3. Nxg6 Kh6
4. Nxe5+ Kh5 $11) 2... exf4 ({B)} 2... Kh7 3. Rxg6 b1=Q 4. Rg5 Qh1 (4... g6 5.
Raxg6 $1 (5. Nxg6 $2 Qf1+ 6. Rf6 Kh6 7. Rxf1 Kxg5 $11) 5... Qxg6+ 6. Nxg6 Kh6
7. Rg1 $18 Bb4) 5. Kxf8 exf4 6. Rxg7+ Kh8 7. Rg8+ Kh7 8. Ra7+ Kh6 9. Rh8+ {pin}
Kg5 10. Rxh1 $18) 3. Ra2 $1 bxa2 (3... Kh7 4. Rxb2 $18) 4. Rc2 b1=Q 5. Rh2# 1-0

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Syzonenko, Viktor"]
[Black "2021/12-719"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "8/5k2/5P2/6K1/B2bN3/3q4/2N5/8 w - - 0 1"]
[PlyCount "13"]
[EventDate "2021.??.??"]
[SourceDate "2021.11.17"]

{[#]} 1. Bb3+ $1 (1. Nxd4 $2 Qxd4 $2 {(capture A)} (1... Qxe4 $19 {(result B)
#54 to wK!}) 2. Bb3+ $11 {(result A)}) 1... Qxb3 2. Nxd4 Qe3+ $1 (2... Qd5+ $2
$11 3. Nf5 Qxe4 $2 {(capture B)} 4. Nd6+ $18 {4...K~ 5.S*e4, +- (result A) #10
to bK!}) 3. Kf5 Qxd4 {(capture A)} 4. Ng5+ Ke8 5. f7+ Ke7 6. f8=Q+ Kxf8 7. Ne6+
{7...K~ 8.S*d4= (result B). Draw. I declare a new formal idea: "Paradoxical
alternation of the result in trying and solving on the unchangeable game goals
of blacks.} 1/2-1/2

[Event "MSV-2021"]
[Site "?"]
[Date "2021.??.??"]
[Round "?"]
[White "Kuzmichev, Vladimir"]
[Black "2021/12-721"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "K7/7p/1b6/8/1k6/8/7N/8 w - - 0 1"]
[PlyCount "17"]
[EventDate "2021.??.??"]

{[#] In two connected variations, white succeeds to stop the h-pawn, by an
unconventional means.} 1. Kb7 $1 (1. Nf3 $2 Be3 $1 (1... Bf2 $2 2. Kb7 Kc5 3.
Ng5 h5 4. Ne4+ Kd4 5. Nxf2 Ke3 6. Nh3 $11) 2. Kb7 Kc5 3. Ne5 Kd4 4. Nd7 h5 5.
Nf6 h4 $19) 1... Kc5 2. Nf3 $1 Ba5 ({second line} 2... Bd8 3. Kc8 Bf6 4. Kd7
Kd5 5. Ne1 h5 6. Ng2 Bg5 7. Ke8 {the king paves its way behind the enemy's
lines} Ke4 8. Kf7 Kf3 9. Kg6 $11) 3. Ne5 Kd5 4. Nd7 Bc3 5. Nf8 {and here the
knight approaches from behind} h5 6. Ng6 Ke4 7. Kc6 Kf5 8. Kd5 {In both lines
the white knight is the bait for the black king, ebabling the white king the
time to achieve a draw.} Kg4 (8... Kxg6 9. Ke4 $11) 9. Ke4 $11 1/2-1/2

