White to play and win (hard)
 ← 
 → 
1.Qxg7+! Nxg7 2.Rxg7+ Kh8 3.Rg8+‼ Kxg8 4.Rg1+ 1-0
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[FEN "2rqnrk1/pp3ppp/1b1p4/3p2Q1/2n1P3/3B1P2/PB2NP1P/R5RK w - - 0 1"]
[SetUp "1"]

1.Qxg7+ $1 Nxg7 2.Rxg7+ Kh8 3.Rg8+ $3 Kxg8 4.Rg1+ 1-0