[Event "Variantim"]
[Site "?"]
[Date "2020.??.??"]
[Round "?"]
[White "M. Pasman (Israel)"]
[Black "?"]
[Result "1-0"]
[EventDate "2020.??.??"]
[FEN "3k1B2/N1n2PK1/8/8/3p4/2qp4/5R2/8 w - - 0 1"]
[SetUp "1"]

1.Rf6 $1 ( 1.Bb4 Ne6+ $1 ) ( 1.Kg6 Ne6 2.Bb4 Qc1 ) ( 1.Be7+ Kd7 $1 2.Rf6 ( 
2.f8=Q $2 Ne6+ ) 2...Ne8+ $1 3.Kh8 $1 ( 3.fxe8=Q+ $2 Kxe8 $19 ) 3...d2 4.f8=Q
d1=Q 5.Rd6+ Nxd6 6.Qd8+ Ke6 { may be enough only for draw } ) 1...Ne8+ $1
2.fxe8=Q+ Kxe8 3.Re6+ $1 Kd7 4.Rd6+ $1 Ke8 { [#] } ( 4...Kc7 5.Nb5+ $18 )
5.Nc6 $1
{ threatening mate, so black has to give up his queen, but it's not over
yet. .. } 5...Qxc6 $1 6.Rxc6 d2 7.Re6+ $1 Kd7 8.Rd6+ Ke8 $1 { [#] } 9.Be7 $3
( 9.Rxd4 d1=Q 10.Rxd1 $11 { stalemate } ) 9...d1=Q ( 9...Kxe7 10.Rxd4 $18 )
10.Bg5 $1 { and mate next move } 1-0

[Event "Variantim"]
[Site "?"]
[Date "2020.??.??"]
[Round "?"]
[White "Michal Hlinka & Lubos Kekely, Slovakia"]
[Black "?"]
[Result "1-0"]
[EventDate "2020.??.??"]
[FEN "5r2/8/P1R5/5P2/N7/4q2N/6K1/3k4 w - - 0 1"]
[SetUp "1"]

1.Nb2+ ( 1.Nc3+ $2 Kd2 2.Nb1+ Kd1 $11 ) 1...Ke1 ( 1...Kd2 2.Nc4+ $18 ) ( 
1...Ke2 2.Ng1+ $18 ) 2.Re6 Qe2+ $1 ( 2...Rg8+ 3.Kh1 $1 Ke2 4.Nc4 Qxe6 5.fxe6
$18 ) ( 2...Ke2 3.Nf4+ $18 ) 3.Rxe2+ Kxe2 4.Nf4+ Ke3 5.Ne6 Rg8+ 6.Kf1 $1 ( 
6.Kh2 $2 Ke4 7.Nc7 Rh8+ 8.Kg3 Rg8+ 9.Kf2 Rf8 $11 ) 6...Ra8 ( 6...Rb8 7.f6 $18
) 7.Nc4+ ( 7.f6 $2 Rxa6 8.f7 Ra8 $11 ) 7...Ke4 8.f6 Kf5 ( 8...Rxa6 9.f7 Ra8
10.Nd6+ Ke5 11.Ne8 $18 ) 9.Nb6 Ra7 ( 9...Rh8 10.Nc5 $18 ) ( 9...Rxa6 10.f7
$18 ) 10.Nc8 Rxa6 11.f7 { and wins } 1-0

[Event "Variantim"]
[Site "?"]
[Date "2020.??.??"]
[Round "?"]
[White "P. Arestov & P. Kiryakov (Russia)"]
[Black "?"]
[Result "1/2-1/2"]
[FEN "K2B4/2N5/7P/8/8/2P1q3/4P3/1k6 w - - 0 1"]
[SetUp "1"]

1.Kb7 $1 ( 1.h7 Qxc3 ) ( 1.Bf6 Qb6 ) 1...Qxe2 $1 ( 1...Qxh6 2.Be7
{ with idea 3.Bb4 fortress; } ( 2.Nb5 ) ) ( 1...Qxc3 2.Nd5 $1 Qc5 ( 2...Qd4
3.Kc6 Qc4+ 4.Kd6 ) 3.e4 $1 ) 2.Kc6 $1 ( 2.Bf6 Qf3+ ) ( 2.h7 Qb2+ ( 2...Qf3+ )
3.Kc8 Qxc3 ) 2...Qc4+ 3.Kd7 $1 ( 3.Kd6 Qxc3 ) 3...Qd3+ $1 ( 3...Qxc3 4.Bg5
Qe5 5.Ne6 ) 4.Ke7 $1 ( 4.Ke8 $2 Qd6 $1 5.Kf7 Qxd8 ) 4...Qxc3 5.Kf7 $1 ( 
5.Ne6 Qh8 ) 5...Qd2 ( 5...Qh8 6.Bg5 Qh7+ 7.Kf6 Qxc7 8.Kg6 ) 6.h7 $1 ( 6.Kg6
Qd3+ $1 ( 6...Qxd8 7.h7 ) 7.Kg7 Qxd8 8.h7 Qg5+ 9.Kf7 Qh6 10.Kg8 Qg6+ 11.Kh8
Qf7 ) 6...Qh6 7.Kg8 Qg6+ 8.Kh8
{ white king went from a8 to h8 (a8-b7-c6-d7-e7-f7-g8-h8) } 8...Kc2 9.Ne6 $1
{ with 2 lines A) } 9...Kc3 ( { B) } 9...Qf7 10.Bf6 $1 Kd2 ( 10...Kd3 11.Be7
Kc4 12.Ng5 $1 { see line A } ) 11.Bg7 Ke3 ( 11...Kd3 12.Bh6 Kc4 13.Ng5 )
12.Bf8 ( 12.Bh6+ $2 Kd3 13.Bf8 Kc4 ) 12...Kf2 ( 12...Ke4 ) ( 12...Kf3 13.Ng5+
) 13.Bd6 $1 Qxe6 ( 13...Kg2 14.Be5 ( 14.Bf4 ) 14...Kh3 15.Ng5+ ) 14.Kg7 ) ( 
9...Qxe6 10.Kg7 ) 10.Bf6+ $1 ( 10.Be7 Kc4 11.Bf6 Qf7 12.Be7 Kd5 ) 10...Kc4
11.Be7 Qf7 ( 11...Qxe6 12.Kg7 $1 Qxe7+ 13.Kg8 ) ( 11...Kd5 12.Nf4+ ) 12.Ng5
Qg6 13.Ne6 $1 { positional draw. } 1/2-1/2

[Event "Variantim"]
[Site "?"]
[Date "2020.??.??"]
[Round "?"]
[White "János Mikitovics (Hungary)"]
[Black "?"]
[Result "1-0"]
[EventDate "2020.??.??"]
[FEN "8/3r4/3n4/1P6/K4k2/R1NP4/8/8 w - - 0 1"]
[SetUp "1"]

1.Kb4 $1 ( 1.b6 $2 Nc8 $1 2.Nd5+ Rxd5 ( 2...Ke5 $2 3.Rc3 $18 ) 3.b7 Nb6+
4.Kb4 Nd7 $1 $11 ( 4...Rd8 $2 5.Ra6 $3 Nd7 6.Rd6 $18 ) ) 1...Ke3 2.b6 $1 ( 
2.Kc5 $2 Nxb5 $1 $11 ) 2...Nc8 $1 3.Nd5+ $3 Rxd5 ( 3...Kd4 4.Ra8 $1 ( 4.Rc3
$2 Nxb6 ) 4...Nxb6 5.Nxb6 Rd6 ( 5...Rb7 6.Rd8+ $18 ) 6.Nc4 $1 Rh6 7.Rd8+ Rd6
8.Rxd6# ) ( 3...Kd2 4.Kc4 $18 ( 4.Rc3 $2 Nxb6 $1 $11 ) ) 4.b7 Ne7 5.Ra6 $3 ( 
5.b8=Q $2 Nc6+ $11 { fork } ) ( 5.Rc3 $2 Rd8 $11 ) 5...Rd4+ 6.Kb3 { /c3 } ( 
6.Kb5 $2 { /a5/c5 } 6...Rd5+ 7.Kb6 Rd6+ 8.Kb5 { /c5 } ( 8.Kc7 $2 Rxa6 $11 )
8...Rd5+ 9.Kb4 { /a4/c4 } 9...Rd4+ 10.Kb3 { /c3 loss of time } ) 6...Rxd3+
7.Kb2 { /c2 } 7...Rd8 $1 8.Ra8 $1 ( 8.Re6+ $2 Kd4 $1 $11 ( 8...Kd3 $2 9.Rxe7
Kd4 10.Rd7+ $18 ) ) 8...Rd2+ 9.Kc1 $3 ( { Thematic try } 9.Kc3 $2 Rd3+ $1 ( 
9...Nd5+ $2 10.Kb3 Rd3+ 11.Kb2 $18 ) 10.Kc2 ( 10.Kc4 Rd4+ 11.Kc5 Rd5+ 12.Kb6
Rd6+ 13.Kc7 Rc6+ 14.Kd7 Rb6 $11 ) 10...Nc6 11.Re8+ Kd4 12.Rd8+ Nxd8 13.b8=Q
Ke4 $3 14.Qb4+ Rd4 15.Qe7+ Kf5 $1 ( 15...Kf4 $2 16.Kc3 Rd5 17.Kc4 Rd4+ 18.Kc5
$1 $18 ( 18.Kxd4 $2 Nc6+ $11 { fork } ) ) 16.Qc5+ Ke4 17.Qe7+ Kf5
{ positional draw. } ) ( 9.Kb1 $2 Nc6 $1 $11 ( 9...Rd1+ $2 10.Kc2 Rd2+ 11.Kc1
{ main } ) ) 9...Nc6 10.Re8+ $1 Kd3 11.Rd8+ $18 ( 11.Rc8 $2 Rc2+ $11 ) 1-0

[Event "Variantim"]
[Site "?"]
[Date "2020.02.07"]
[Round "?"]
[White "Steffen Nielsen (Denmark)"]
[Black "?"]
[Result "1-0"]
[Annotator "stjef"]
[EventDate "2018.??.??"]
[FEN "1RRB4/P3Pp2/P7/r3n3/8/3pk3/8/6K1 b - - 0 1"]
[SetUp "1"]
[SourceVersionDate "2019.02.05"]

1...Nf3+ 2.Kf1 ( 2.Kg2 $2 Rg5+ { and a perpetual } ) 2...Ra1+
{ Now White has choice among three legal moves. The natural 3. Kg2 or the
mysterious 3...Rb1 or 3... Rc1. } 3.Rb1 $3 ( 3.Kg2 $2 { Try } 3...Rg1+ 4.Kh3
Ng5+ 5.Kh4 Nf3+ 6.Kh5 Rh1+ 7.Kg4 Rg1+ 8.Kf5 Rg5+ 9.Kf6 Rg6+ 10.Kxf7 Ne5+
11.Kf8 Nd7+ 12.Ke8 Ne5 13.Bb6+ Ke2 14.Kd8 Rd6+ ( 14...d2 $2 15.Rc2 ) 15.Kc7
{ (?) } ( 15.Ke8 $11 ) 15...Rd7#
{ The rook on b8 blocks the escape of the White king. } ) ( 
{ Correction try } 3.Rc1 $5 Rxc1+ 4.Kg2 Rg1+ 5.Kh3 Rh1+ 6.Kg4 Rg1+ 7.Kf5 Rg5+
8.Kf6 Rg6+ 9.Kxf7 Ne5+ 10.Kf8 Nd7+ 11.Ke8 Ne5 12.Bb6+ Ke2 ( 12...Kf4 13.Kd8
d2 14.Be3+ Kxe3 15.Rb1 ) 13.Kd8 $2 ( 13.Kf8 $11 ) 13...d2 $1 $19
{ The problem with 3. Rc1!? Compared to the mainline, 14. Rb2 is not
possible, because the bishop is on b6. } ( 13...Rd6+ $2 14.Kc8
{ Unblock of c8. The point of 3...Rc1!? } ( { or } 14.Kc7 Rd7+ 15.Kc8 ) ) )
3...Rxb1+ 4.Kg2 Rg1+ 5.Kh3 Ng5+ ( 5...Rh1+ 6.Kg4 Rg1+ 7.Kf5
{ transfers to the mainline } ) 6.Kh4 Nf3+ 7.Kh5 Rh1+ $1 ( { or } 7...Rg5+
8.Kh6 Rg6+ 9.Kh7 Ng5+ 10.Kh8 Rh6+ 11.Kg7 ( 11.Kg8 ) 11...Rg6+ 12.Kf8 $18 )
8.Kg4 Rg1+ 9.Kf5 Rg5+ 10.Kf6 Rg6+ 11.Kxf7 Ne5+ 12.Kf8 Nd7+ ( 12...Rf6+ 13.Kg8
( 13.Kg7 ) 13...Rg6+ 14.Kh7 $18 ) 13.Ke8 Ne5 $1
{ Finally White has some breathing space. } 14.Bb6+ Ke2 ( 14...Kf4 15.Rc4+
Kf5 ( 15...Nxc4 16.Kf8 ( 16.Bc7+ ) ) 16.Kd8 $18 ) 15.Kd8 Rd6+ ( 15...d2 $2
16.Rc2 $1 $18 { The point of 3. Rb1! in comparison to 3. Rc1!? } ) 16.Kc7
Rd7+ 17.Kb8 $18 { Unblock of b8. The other point of 3.Rb1! } 1-0

[Event "Variantim"]
[Site "?"]
[Date "2020.??.??"]
[Round "?"]
[White "Daniel Keith (France)"]
[Black "?"]
[Result "1-0"]
[EventDate "2020.??.??"]
[FEN "8/8/5b2/8/P4p2/8/3KP3/k6N w - - 1 1"]
[SetUp "1"]

1.a5 $1 ( 1.Nf2 $2 Kb2 $1 2.Kd3 ( 2.Ne4 Bd8 3.Nc5 Bb6 $1 $10 ( 3...Ka3 $2
4.Kc3 Bb6 5.Kc4 $18 ) ) 2...Kb3 3.a5 Be5 $1 ( 3...Bd8 $2 4.a6 Bb6 5.Ne4 Kb4
6.Nd6 $18 ) 4.a6 Bb8 $10 ) ( 1.Kd3 $2 Kb2 $1 2.Kc4 Bh4 $1 ( 2...Kc2 $2 3.Nf2
Bd8 4.Nh3 $18 ) 3.a5 Bd8 4.a6 Bb6 $10 ) 1...Kb2 $1 2.a6 Bd4 3.Kd3 $1 ( 3.Nf2
$2 Kb3 $10 ) 3...Ba7 4.Nf2 $1 Bxf2 ( 4...Kb3 5.Ne4 Kb4 6.Nd6 Ka5 7.Nc8 $18 )
5.e4 fxe3 ( 5...f3 6.e5 $18 ) 6.Ke2 1-0

[Event "Variantim"]
[Site "?"]
[Date "2020.03.31"]
[Round "?"]
[White "Itay Richardson (Israel)"]
[Black "?"]
[Result "1/2-1/2"]
[EventDate "2020.03.31"]
[FEN "k5r1/5bP1/5P2/3p4/7q/NK1PRQ1P/8/b7 w - - 0 1"]
[SetUp "1"]

1.Nb5 Rb8 2.g8=Q Bxg8 ( 2...Rxg8 3.Re7 ) 3.Re8 $3 Rxe8 ( 3...Bf7 4.Rxb8+ Kxb8
5.Nd6 ) 4.f7 Bxf7 5.Qxf7 Qe7 ( 5...Re7 6.Qxd5+ Kb8 ( 6...Rb7 7.Qg8+ Rb8
8.Qd5+ ) 7.Qd8+ Kb7 8.Qd5+ Kb6 9.Nd6 $10 ) 6.Nc7+ $1 ( { thematic try: }
6.Qxe8+ Qxe8 7.Nc7+ Kb7 8.Nxe8 Kc6 9.Kb4 Bh8 $19 ) 6...Kb7 7.Nxe8 Qxf7 8.Nd6+
1/2-1/2

[Event "Variantim"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Itay Richardson (Israel)"]
[Black "?"]
[Result "1/2-1/2"]
[FEN "2N5/2P4p/8/3p3p/2p1B3/8/3pp1K1/4k3 w - - 0 1"]
[SetUp "1"]

1.Nd6 d1=Q 2.c8=Q Kd2 ( 2...Qd4 3.Qf5 c3 4.Qf4 Qg7+ ( 4...c2 5.Qc1+ Qd1 6.Qe3
c1=Q 7.Qg3+ Kd2 8.Qd3+ Ke1 9.Qg3+ ) 5.Kh2 Qg4 6.Qf6 dxe4 7.Nxe4 Qxe4 8.Qxc3+
Kd1 9.Qa1+ $10 { perpetual check } ) 3.Nxc4+ dxc4 4.Qxc4 Qf1+ ( 4...e1=Q
5.Qd3+ Kc1 6.Qb1+ Kd2 7.Qd3+ ) 5.Kh2 Qf2+ ( 5...e1=Q 6.Qd4+ Kc1 7.Qa1+ Kd2
8.Qd4+ ) 6.Kh3 Qe3+ 7.Kg2 ( 7.Kh2 Qc3 ) 7...Qg5+ ( 7...Qc3 8.Qa2+ Ke3 9.Qa7+
{ perpetual check } ) ( 7...e1=Q 8.Qc2# ) 8.Kh3 ( 8.Kh2 Qe5+ 9.Kg2 Qg7+
10.Kh2 Qc3 ) 8...Qg4+ 9.Kh2 Qf4+ ( 9...Qh4+ 10.Kg2 e1=N+ 11.Kf1 ( 11.Kg1 Ke3
12.Qc3+ Kxe4 13.Qc4+ Kf5 14.Qxh4 Nf3+ ) ) 10.Kg2 ( 10.Kh3 h4 $3 11.Qd3+ Ke1
12.Kg2 Qg4+ 13.Kh1 Kf1 ) 10...e1=N+ 11.Kg1 ( 11.Kh1 Qh4+ 12.Kg1 Ke3 13.Qc3+
Kxe4 14.Qc4+ Kf5 15.Qxh4 Nf3+ ) ( 11.Kh3 Qg4+ 12.Kh2 Nf3+ 13.Bxf3 Qxc4 )
1/2-1/2

[Event "Variantim"]
[Site "?"]
[Date "2020.??.??"]
[Round "?"]
[White "Y. Hoch & I. Richardson (israel)"]
[Black "?"]
[Result "1-0"]
[EventDate "2020.??.??"]
[FEN "1k1N4/1p2pn2/2P2P2/8/K2b4/1Pq1B3/8/5Q2 w - - 0 1"]
[SetUp "1"]

1.fxe7 ( 1.Nxf7 Bxe3 ) ( 1.c7+ Qxc7 2.Bxd4 Nxd8 ) 1...Nd6 2.c7+ ( 2.Bf4 Bc5
3.Bxd6+ Bxd6 4.c7+ Bxc7 ) 2...Kxc7 ( 2...Qxc7 3.Bxd4 Qxe7 4.Bb6 ) 3.Ne6+ Kd7
4.e8=Q+ $1 Kxe8 5.Bxd4 b5+ 6.Ka3 Nc4+ 7.Qxc4 $1 Qa5+ 8.Qa4 $3 bxa4 9.b4 1-0

[Event "Variantim"]
[Site "?"]
[Date "2020.??.??"]
[Round "?"]
[White "Yochanan Afek (Israel/Netherlands)"]
[Black "?"]
[Result "1/2-1/2"]
[Annotator ",Yochanan"]
[FEN "1k2K3/8/8/1p4b1/4R3/8/pP6/8 w - - 0 1"]
[SetUp "1"]

1.Re1 b4 2.Kf7 $1 ( 2.Ra1 $2 b3 3.Kf7 Kc7 4.Ke6 Kc6 5.Ke5 Kc5 $19 ) ( 2.b3 $2
Bf6 $19 ) ( 2.Kd7 $2 Bf6 $19 ) 2...b3 3.Ke6 Bd2 4.Ra1 $3 ( { Logical try: }
4.Rd1 { -h1? } 4...Bc3 $1 5.Kd5 Bxb2 6.Kc4 Bc1 $1 $19 ) 4...Bc3 $1 5.Kd5 $1
Bxb2 6.Kc4 Bxa1 7.Kxb3 Be5 8.Kxa2 1/2-1/2

[Event "Variantim"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Vladimir Samilo (Ukraine)"]
[Black "?"]
[Result "1/2-1/2"]
[FEN "2Nb2k1/6p1/2RK3p/p2P3P/1p6/p7/8/8 w - - 0 1"]
[SetUp "1"]

1.Ne7+ ( 1.Rc1 b3 2.Ne7+ Bxe7+ 3.Kxe7 b2 ) 1...Kf7 ( 1...Bxe7+ 2.Kxe7 a2
3.Rc1 b3 4.d6 ) 2.Ng6 b3 ( 2...a2 3.Rc1 Kf6 4.Rf1+ Kg5 5.Ke6 $10 ) 3.Rc1 a2
( 3...b2 4.Rf1+ Bf6 5.Nh8+ Kg8 6.Ng6 ) 4.Rf1+ Bf6 5.Re1 a1=Q 6.Nh8+ Kg8
7.Re8+ Kh7 8.Ng6 Be7+ 9.Kc7 Qc3+ 10.Kd7 Qh3+ 11.Kxe7 Qe3+ 12.Kd7 Qxe8+
13.Kxe8 b2 14.Kf7 b1=Q 15.Nf8+ Kh8 16.Ng6+ Kh7 17.Nf8+ 1/2-1/2

[Event "Variantim"]
[Site "?"]
[Date "2020.??.??"]
[Round "?"]
[White "Slumstrup Nielsen=S Minski=M (Denmark/Germany)"]
[Black "?"]
[Result "1-0"]
[EventDate "2020.??.??"]
[FEN "4k2B/K7/1P6/5Np1/2p5/2P5/R2b2rp/8 w - - 0 1"]
[SetUp "1"]

1.Ng3 $1 ( 1.b7 $4 Be3+ 2.Nxe3 Rxa2+ $19 ) 1...Rxg3 2.b7 Bf4 ( 2...Be3+ 3.Bd4
$18 ) 3.Rxh2 Rxc3 $1 4.Re2+ ( 4.Bxc3 $2 Bxh2 $11 ) 4...Re3 5.Be5 $3
{ the point } 5...Ra3+ ( 5...Bxe5 6.Rxe3 $18 ) ( 5...Rxe5 6.b8=Q+ $18 ) ( 
5...Rxe2 6.b8=Q+ $18 ) 6.Kb6 Kd7 7.b8=N+ $1 { Phoenix } ( 7.b8=Q $2 Rb3+ $11
) 7...Kc8 ( 7...Kd8 8.Bf6+ ) 8.Bxf4 gxf4 ( 8...Rb3+ 9.Kc6 ) 9.Re8#
{ model mate } 1-0

[Event "Variantim"]
[Site "?"]
[Date "2020.??.??"]
[Round "?"]
[White "S.Didukh (Ukrain)"]
[Black "?"]
[Result "1-0"]
[EventDate "2020.??.??"]
[FEN "4r3/p1pk4/b4p2/n7/4p1PP/B7/2PN4/R3K3 w Q - 0 1"]
[SetUp "1"]


{ White can castle but the King is not satisfied with the development of
the light pieces. He wishes to re-develop Knight and Bishop on other
squares before castling. So, White returns his pieces back. } 1.Bc1 $1 ( 
1.O-O-O $2 Kc8 $11 ) ( 1.Bc5 $2 e3 2.Nb1 Nb7 $1 $11 ) ( 1.Bb2 $2 e3 2.Rxa5
exd2+ 3.Kxd2 Re2+ 4.Kd1 Bc4 5.Bxf6 Re4 $11 ) 1...e3 2.Nb1 $1 ( 2.Nf3 $2 Bb7
$1 $11 ) 2...Re5 ( { Black can try a sacrifice } 2...Nc6 $5
{ with the idea to profit from White's intentional underdevelopment. } 3.Rxa6
Nd4 4.Rxf6 Nxc2+ 5.Ke2 Nd4+ 6.Kd3 e2 7.Bd2 e1=Q 8.Bxe1 Rxe1 9.Kxd4 Rxb1
10.Ke3 Re1+ 11.Kf2 $18 { the connected pair of pawns decides. } ) 3.Bb2 Rb5
( { Another attempt to drop a piece } 3...Rc5 4.Bc3 $1 f5 $1
{ forces White to find several precise moves: } 5.Rxa5 Rxa5 6.Bxa5 f4 7.Na3
$1 Kd6 ( 7...Kc6 8.c4 Bc8 9.Nc2 Bxg4 10.Nb4+ Kd6 11.Nd5 $18 ) 8.c4 Bc8 9.Nb5+
Kc5 10.Bxc7 Bxg4 11.Bxf4 $18 ) 4.Nc3 $1 ( 4.Bxf6 $2 Rb4 $1 5.Bg5 ( 5.Rxa5 $4
Rxb1# ) 5...Rxg4 6.Bxe3 Nc4 $11 ) ( 4.Bd4 $2 Rb4 5.Bxe3 Bb7 6.Nc3 Rc4 7.Kd2
Nc6 8.Nd5 Nb4 9.Nxf6+ Ke6 10.c3 Kxf6 $11 ) 4...Rxb2 ( 4...Rc5 5.h5 Ke6 6.h6
Kf7 7.h7 Kg7 8.Ne4 Rxc2 9.Rxa5 Re2+ 10.Kd1 Rxb2 11.Rxa6 $18 ) 5.O-O-O+ $1
{ The King keeps his promise. } 5...Ke6 6.Kxb2 { wins, e.g. } 6...Nc4+ 7.Kc1
Ne5 8.Re1 Nxg4 9.Nd1 e2 10.Nc3 $18 1-0

[Event "Variantim"]
[Site "?"]
[Date "2020.05.21"]
[Round "?"]
[White "Peter Krug (Austria) & Mario Garcia (Argentina) "]
[Black "?"]
[Result "1/2-1/2"]
[EventDate "2020.??.??"]
[FEN "2q1k3/4pp1p/2P4K/p2N2P1/4N3/2pB4/8/8 w - - 0 1"]
[SetUp "1"]

1.g6 $1 { with two lines : A) } 1...c2 ( { B) } 1...Qxc6 2.Bb5 $1 Qxb5 3.Nc7+
$1 ( 3.g7 $2 Qxd5 4.g8=Q+ Kd7 $19 ) 3...Kf8 4.g7+ $1 ( 4.Nxb5 $2 c2 5.Kxh7 ( 
5.gxh7 c1=Q+ $19 ) 5...fxg6 $19 ) 4...Kg8 5.Nf6+ exf6 6.Nd5 Qxd5 $11
{ stalemate } ) 2.Kg7 $1 ( { Try: } 2.Bxc2 $2 Qxc6 3.Ba4 ( 3.Nef6+ exf6 4.g7
f5+ 5.Kxh7 Qg6+ 6.Kg8 Kd7 $19 ) 3...Qxa4 4.g7 Qxe4 5.g8=Q+ Kd7 6.Qxf7 Qe6+
7.Qxe6+ Kxe6 $19 ) 2...Qg4 ( 2...fxg6 3.c7 c1=Q 4.Bb5+ Qd7 5.Nec3 $1 $11
{ positional draw } ) 3.Nd6+ $1 ( { Try : } 3.Nef6+ $2 exf6 4.Bxc2 Qg5 5.c7
Kd7 6.Bd3 Qxd5 7.gxf7 ( 7.gxh7 Qxd3 $19 ) 7...Qg5+ 8.Kxh7 Qc5 9.Kg8 a4
10.Bb5+ ( 10.f8=Q Qxf8+ 11.Kxf8 a3 $1 $19 ) 10...Qxb5 11.c8=Q+ Kxc8 12.f8=Q+
Kc7 $1 $19 ) 3...exd6 4.c7 fxg6 ( 4...Qxg6+ 5.Bxg6 c1=Q 6.Bd3 $1 Qg5+ 7.Kh8
Qe5+ 8.Kg8 Qg3+ 9.Kh8 $11 { positional draw } ) 5.Nf6+ Ke7 6.Nd5+ $1 $11
{ positional draw } 1/2-1/2

[Event "Variantim"]
[Site "?"]
[Date "2020.05.21"]
[Round "?"]
[White "Alexey Gasparyan (Armenia)"]
[Black "?"]
[Result "1/2-1/2"]
[EventDate "2020.??.??"]
[FEN "2bN1B1k/ppp1p3/4P2P/Kp2N1p1/1P4B1/6R1/5n2/1q6 w - - 0 1"]
[SetUp "1"]

1.Ndf7+ Kg8 2.h7+ Kxh7 3.Bf5+ Qxf5 4.Nxg5+ Kg8 5.Nh7+ Ng4 ( 5...Kxh7 6.Rg7+
Kh6 ( 6...Kh8 7.Ng6+ Qxg6 8.Rxg6 c6 9.Rh6+ Kg8 10.Rg6+ Kxf8 11.Rg8+ Kxg8
{ stalemate } ) 7.Rf7+ Kg5 8.Bxe7+ Kf4 9.Bd6 Bxe6 10.Rxf5+ Kxf5 11.Bxc7 $10 )
6.Rxg4+ Qxg4 7.Nxg4 a6 ( { 2nd main line: } 7...c6 8.Nhf6+ ( 8.Ngf6+ exf6
9.Bc5 b6+ 10.Bxb6 axb6+ 11.Kxb6 Kxh7 ) 8...Kxf8 ( 8...exf6 9.Bc5 ) 9.Nd7+ Ke8
10.Nge5 Kd8 ( 10...b6+ 11.Nxb6 axb6+ 12.Kxb6 Bxe6 13.Kxc6 $10 ) 11.Nxc6+ bxc6
12.Ne5 Kc7 ( 12...Bb7 13.Ng6 ) 13.Nxc6 Kxc6 { stalemate } ) 8.Ngf6+ ( 
8.Nhf6+ Kxf8 9.Nd5 b6+ 10.Nxb6 cxb6+ 11.Kxb6 Kg7 12.Kc5 Bxe6 ) 8...exf6
9.Nxf6+ Kxf8 10.e7+ Kxe7 11.Nd5+ Kd6 12.Nxc7 Kc6 13.Na8 $1 1/2-1/2

[Event "Variantim"]
[Site "?"]
[Date "2020.05.21"]
[Round "?"]
[White "Alexey Gasparyan (Armenia)"]
[Black "?"]
[Result "1-0"]
[EventDate "2020.??.??"]
[FEN "2b2B1k/ppp1p3/3NP2P/Kp2N1p1/1P4B1/6R1/5n2/1q6 w - - 0 1"]
[SetUp "1"]

{ This is a twin Nd8->Nd6 of the previous study. } 1.Nef7+ Kg8 2.h7+ Qxh7
3.Nh6+ Kxf8 4.Rf3+ Kg7 5.Rf7+ Kxh6 6.Nf5+ Qxf5 7.Bxf5 g4 8.Rxe7 1-0

[Event "Variantim"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Hoch (Israel)"]
[Black "?"]
[Result "1-0"]
[FEN "8/7p/8/1p2K3/1p6/P1p5/PR1P4/k7 w - - 0 1"]
[SetUp "1"]

1.Rc2 Kb1 2.dxc3 Kxc2 3.cxb4 Kc3 4.Kf4 ( 
{ White can only capture the h-pawn if the black king is on c4. If the king
is on c3, black's extra tempo is enough to draw. } 4.Kf5 h5 5.Kf4 h4 6.Kf3 h3
7.Kg3 h2 8.Kxh2 Kb2 9.a4 bxa4 10.b5 a3 11.b6 Kxa2 12.b7 Ka1 13.b8=Q a2 $10 )
( 4.Ke4 h5 5.Kf3 h4 6.Kg2 h3+ 7.Kh2 Kb2 8.a4 bxa4 9.b5 a3 10.b6 Kxa2 11.b7
Ka1 12.b8=Q a2 13.Qf4 Kb2 14.Qb4+ Kc2 15.Qa3 Kb1 16.Qb3+ Ka1 17.Kg3 h2 $10 )
4...h5 ( 4...Kc4 5.Kg5 Kc3 6.Kh6 $18 ) ( 4...Kd4 5.a4 bxa4 6.a3 Kc4 7.Kg5 Kd4
8.Kh6 Kc4 9.Kxh7 Kb3 10.b5 Kxa3 11.b6 Ka2 12.b7 a3 13.b8=Q Ka1 14.Qf4 $18 )
5.Kg3 Kc4 ( 5...h4+ 6.Kh3 Kc4 7.Kxh4 ) 6.Kh3 Kc3 7.Kh4 Kc4 8.Kxh5 Kc3 9.Kg4
Kb2 10.a4 bxa4 11.b5 a3 12.b6 Kxa2 13.b7 Ka1 14.Kf5 a2 15.Ke4 1-0

[Event "Variantim"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Hoch=Y (Israel)"]
[Black "?"]
[Result "1-0"]
[FEN "8/1K2p2P/6k1/1p6/8/2q1R3/R1P4p/8 w - - 0 1"]
[SetUp "1"]

1.Ra6+ Kg5 ( 1...e6 2.Raxe6+ Kxh7 3.Rxc3 h1=Q+ 4.Kb8 Kg7 5.Rc7+ Kf8 6.Ra6 Qg1
7.Rf6+ Ke8 8.Rh6 Qd4 9.Rh8+ ) 2.Rh6 $3 Kxh6 3.Rh3+ $3 Qxh3 4.h8=Q+ 1-0

[Event "Variantim"]
[Site "?"]
[Date "2020.08.23"]
[Round "?"]
[White "Arestov Pavel (Russia), Peter Krug (Austria)"]
[Black "?"]
[Result "1/2-1/2"]
[Annotator "АР,Пав"]
[FEN "4k3/8/K4P2/5P2/4N1qN/8/8/8 w - - 0 1"]
[SetUp "1"]

1.f7+ $1 ( 1.Nd6+ $2 Kd7 $1 2.f7 Kc6 3.f8=Q Qa4# ) 1...Kxf7 ( 1...Ke7 $2
2.Ng6+ Kxf7 3.Ne5+ { fork } ) 2.Nf3 $3 Kf8 $1 ( 2...Qxe4 3.Ng5+ { fork } ) ( 
2...Qxf3 3.Ng5+ { fork } ) ( 2...Qxf5 3.Nd6+ { fork } ) ( 2...Ke7 3.f6+ $11 )
3.Nfg5 $1 ( 3.Neg5 $2 Qxf5 $19 ) 3...Qxf5 4.Nc5 $3 { MAIN A } ( 4.Kb6 $2 Ke7
$19 ) 4...Qg6+ $1 ( 4...Qxc5 5.Ne6+ { fork } ) ( 4...Qxg5 5.Ne6+ { fork } )
( { MAIN B } 4...Qb1 $1 5.Ka5 $1 ( 5.Nge4 $2 Qb4 $19 ) 5...Ke7 6.Nge4 $1 Qb2
7.Ka4 $1 Qb6 8.Ka3 $1 Qb5 $1 9.Nb3 $1 ( 9.Ka2 $2 Qb4 $19 ) 9...Qa6+ 10.Kb2 ( 
10.Kb4 $2 Qb7+ $19 ) 10...Qe2+ 11.Ned2 $11 ) 5.Kb7 $1 ( 5.Kb5 $2 Qxg5 { pin }
) 5...Ke7 ( 5...Qxg5 6.Ne6+ { fork } ) 6.Nge4 $1 ( 6.Nce4 $2 Kd7 7.Nc5+ Kd6
8.Nce4+ Ke7 9.Kc7 Qa6 $19 ) 6...Qh6 7.Kc7 $1 Qg6 8.Kb7 $1 ( 8.Kc8 $2 Qb6 $19
) 8...Kd8 9.Ng5 $3 ( 9.Ka7 $2 Kc7 $19 ) 9...Qf6 ( 9...Qd6 10.Nf7+ { fork } )
10.Nge4 Qh6 11.Ng5 $1 Ke7 ( 11...Qxg5 12.Ne6+ { fork } ) 12.Nge4 Qg6 13.Kc7
{ - positional draw. } 1/2-1/2

[Event "Variantim"]
[Site "?"]
[Date "2020.??.??"]
[Round "?"]
[White "M. Pasman (israel)"]
[Black "?"]
[Result "1-0"]
[Annotator "mp"]
[EventDate "2020.??.??"]
[FEN "1R3Q2/2pp1Ppb/p1npn2P/4k3/p2N4/2P2K2/1BP5/R1Nrq3 w - - 0 1"]
[SetUp "1"]

1.Qxg7+ $1
{ By sacrificing the Queen White frees f8 square for future promotion
(Phoenix theme) and opens e-file to allow Re8+ } ( { Try : } 1.Nd3+ $2
{ immediately not works : } 1...Bxd3 ( { or } 1...Rxd3+ 2.cxd3 Be4+ 3.Kg4
Bf5+ 4.Nxf5 Qe2+ $11 ) 2.Qxg7+ Kd5 $1 ) 1...Nxg7 ( 1...Kd5 2.c4+ $1 Kxc4
3.Rxa4+ $18 ) 2.Nd3+ $1 ( 2.Re8+ $2 Ne6 3.Nd3+ ( 3.Nxc6+ Kd5 $1 4.Nb4+ Kc4 )
3...Bxd3 4.Nxc6+ Kd5 $1 5.Nb4+ Kc4 $1 ) 2...Rxd3+ ( 2...Bxd3 3.Nxc6+ dxc6 ( 
3...Kd5 4.Nb4+ Kc4 5.cxd3+ ) 4.c4+ Ke6 5.Re8+ Kxf7 6.Rxe1 ) 3.cxd3 Be4+ $1 ( 
3...Qd2 4.f8=Q $18 Qxd3+ 5.Kf2 Qd2+ 6.Ne2 $18 ) 4.Kg4 $3 ( { Try : } 4.dxe4
$2 Qxe4+ 5.Kf2 Qh4+ 6.Kf1 Qh3+ 7.Ke2 Qg2+ $11 { perpetual check } ) 4...Qf2
$1 ( 4...Bf5+ 5.Nxf5 Qe2+ 6.Kh3 $1 Nxf5 ( 6...Ne6 7.Re8 $1 Kd5 8.Rxe6 Qh5+
9.Nh4 Qxf7 10.Rf6 ) 7.Re8+ $1 Nce7 $1 8.Rxe7+ $1 Nxe7 9.c4+ $1 Ke6 10.f8=Q
Qxd3+ 11.Kg4 Qe4+ 12.Qf4 Qg2+ 13.Qg3 $18 ) ( 4...Qd2 5.Re8+ Ne6 6.Rxe6+ dxe6
7.Nxc6+ Bxc6 8.Re1+ { is similar the same as the main line. } ) 5.Re8+ $1 ( 
5.f8=Q Qg2+ 6.Kh4 Qh2+ $11 ) ( 5.Nxc6+ dxc6 6.Re8+ Ne6 7.c4+ Qxb2 8.f8=Q Qg2+
$11 ) 5...Ne7 ( 5...Ne6 6.Rxe6+ $1 dxe6 7.Nxc6+ { The same } ) 6.Rxe7+ Ne6
7.Rxe6+ $1 dxe6 8.Nc6+ $3 Bxc6 ( 8...Kd5 9.Ne7+ Kc5 10.Ba3+ $18 ) 9.Re1+ $3
( 9.c4+ Qxb2 10.Re1+ Kd4 11.f8=Q Qg2+ 12.Kh4 Qh2+ $11 ) 9...Kd5 ( 9...Qxe1
10.c4+ Qc3 11.Bxc3# ) 10.f8=Q $1 ( 10.Re5+ Kxe5 11.f8=Q Qg2+ 12.Kh4 Qh2+ $11
) 10...Qxf8 ( 10...Qxe1 11.Qf4 $18 ) 11.Re5+ $3 dxe5 ( 11...Kxe5 12.c4# )
12.c4+ Kd6 13.Ba3+ Kd7 14.Bxf8 Ke8 15.h7 Kxf8 16.h8=Q+
{ White sarificed all his pieces, including Queen and promoted Queen and
now promotes new Queen and winning } 1-0

[Event "Variantim"]
[Site "?"]
[Date "2020.??.??"]
[Round "?"]
[White "M.Garcia & V.Tarasiuk (Argentina/Ukraine)"]
[Black "?"]
[Result "1/2-1/2"]
[EventDate "2020.??.??"]
[FEN "K5B1/pP1n1P2/2N4r/P7/8/4k3/4P2q/8 w - - 0 1"]
[SetUp "1"]

1.f8=Q $1 ( 1.b8=Q $2 Nxb8 2.f8=Q Nxc6 $19 ) 1...Nxf8 2.b8=Q Qxb8+ 3.Nxb8 ( 
3.Kxb8 $2 Rxc6 $19 ) 3...Rh8 4.Bf7 $1 ( 4.Bc4 $2 Nd7 5.Kxa7 Nxb8 6.a6 Kd4
7.Bd3 Nd7 8.Kb7 Nc5+ 9.Kb6 Rh6+ $19 ) 4...Nd7 5.Kxa7 Nxb8 ( 5...Rxb8 6.Be6
Rd8 7.Bxd7 Rxd7+ 8.Kb6 $1 Kd4 9.a6 $11 ) 6.Kb7 $3 ( { Try: } 6.a6 $2 Nc6+ $1
7.Kb6 Rh6 8.a7 Nxa7+ $1 9.Kxa7 Rh7 $19 ) 6...Nd7 ( 6...Kd4 7.a6 Nd7 8.a7 $11
) 7.a6 Rh6 $1 ( 7...Nc5+ 8.Kb6 Na4+ 9.Ka5 $11 ) 8.a7 $1 ( 8.Kc7 $2 Nb6 $19 )
8...Nb6 9.Bb3 $3 ( { Try: } 9.a8=Q $2 Nxa8 10.Kxa8 Rh8+ $1 11.Kb7 Rh7 $19 )
( { Try: } 9.Ba2 $2 Kd4 10.a8=Q Nxa8 11.Kxa8 Ra6+ $19 ) ( { Try:: } 9.Bd5 $2
{ /h5 } 9...Kd4 $1 10.Bf3 Kc5 $1 11.a8=Q Nxa8 12.Kxa8 Kb6 $19 ) 9...Kd4
10.a8=Q Nxa8 11.Kxa8 Kc5 12.Ka7 $1 { draw } ( 12.Bc2 $2 Kb6 $1 $19 )
1/2-1/2

