White to play and win (medium)
 ← 
 → 
1.Nd5! Qc5 ( 1...cxd5 2.c3 Rxe4 3.Qa7 ; 1...Nxd5 2.exd5 Rxd5 3.Qa7 ) 2.Qxd4! Qxd4 3.Ne7+ Kb8 4.N7xc6+ bxc6 5.Nxc6+ Kb7 6.Nxd4 1-0
[Event "?"]
[Site "Triberg"]
[Date "1934.??.??"]
[Round "?"]
[White "Bogoljubov"]
[Black "Muller"]
[Result "1-0"]
[FEN "2k4r/1pp2ppp/p1p1bn2/4N3/1q1rP3/2N1Q3/PPP2PPP/R4RK1 w - - 0 1"]
[SetUp "1"]

1.Nd5 $1 Qc5 ( 1...cxd5 2.c3 Rxe4 3.Qa7 ) ( 1...Nxd5 2.exd5 Rxd5 3.Qa7 )
2.Qxd4 $1 Qxd4 3.Ne7+ Kb8 4.N7xc6+ bxc6 5.Nxc6+ Kb7 6.Nxd4 1-0