White to move! How should white proceed?
I didn't solve this one because that first move wasn''t obvious to me.
An immediate Qxg7+ doesn't work, because .. Kxg7 2. Rh7+ Kg8 3. Rh8+ Kf7 4. R1h7+ Ke8 and the BK escapes to e8.
So, white's plan has to prevent that somehow