Try: 1.Sg2? [2.Bf3 [A] , Bg6 [B] ]

 But 1...Rxg2!

Try: 1.Sf5? [2.Bf3 [A]  2.Bg6? ]

1...Rh4    2.Sg7 

 But 1...Rf2!

Solution: 1.Sf3  [2.Bg6 [B]  2.Bf3? ]

1...f5 2.Rg5 

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