White to play and win (medium)
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1.Qa8+ Nb8 2.Qxb7+! Kxb7 ( 2...Kd8 3.Qxb8+ ) 3.Bxd7+ Ka8 ( 3...Ka6 4.Bc8+ Ka5 5.Nc4+ Ka4 6.Rb4# ) 4.Rxb8+ Kxb8 5.Rb1+ Ka8 6.Bc6# 1-0
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[FEN "2k2brr/1ppbq1p1/2np4/1B2p1p1/Q3P3/2PPB1p1/P2N1PP1/RR4K1 w - - 0 1"]
[SetUp "1"]

1.Qa8+ Nb8 2.Qxb7+ $1 Kxb7 ( 2...Kd8 3.Qxb8+ ) 3.Bxd7+ Ka8 ( 3...Ka6 4.Bc8+ Ka5
5.Nc4+ Ka4 6.Rb4# ) 4.Rxb8+ Kxb8 5.Rb1+ Ka8 6.Bc6# 1-0