WD | White to play and win

White to play and win (medium)

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1.Qg8+ Kg6 2.Nh4+! { 2.Nf4+ Kf5 3.Qxg7 ( 3.Qh7+ Kf6 4.Nh5+ Ke7 ) 3...Ra2+ 4.Ng2 Rxg2+ 5.Kxg2 Qd2+ perpetual } 2...Kf6 ( 2...Kh5 3.Rb5+ e5 4.Ng2! Qg5 ( 4...Ra2 5.Qxf7+ ) 5.Nf4+ ) 3.Qd8+ Re7 4.Rb7 Bf8 5.Rb5 Qxc3 ( 5...Bg7 6.d5 ) 6.Ng2 Qf3 ( 6...Bg7 7.d5 ) 7.Qxf8 1-0

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[FEN "1RQ5/r4pbk/4p2p/8/2pP2p1/2P3P1/6NK/2q5 w - - 0 1"]
[SetUp "1"]

1.Qg8+ Kg6 2.Nh4+ $1 { 2.Nf4+ Kf5 3.Qxg7 ( 3.Qh7+ Kf6 4.Nh5+ Ke7 ) 3...Ra2+
4.Ng2 Rxg2+ 5.Kxg2 Qd2+ perpetual } 2...Kf6 ( 2...Kh5 3.Rb5+ e5 4.Ng2 $1 Qg5
( 4...Ra2 5.Qxf7+ ) 5.Nf4+ ) 3.Qd8+ Re7 4.Rb7 Bf8 5.Rb5 Qxc3 ( 5...Bg7 6.d5 )
6.Ng2 Qf3 ( 6...Bg7 7.d5 ) 7.Qxf8
1-0