This position arose in one of my recent games. White is better here to the tune of about +6, partly because of the knight on the great c6-outpost, the pressure on the backward c-pawn and the superior dark squared bishop.
My focus was so much on adding pressure on c7, that I didn’t even perform one of my normal steps at almost every move: consider all forcing and potentially forcing moves, that is checks, captures and threats.
Had I done that, I would have looked at 1.Qxf7+. Now I would have dismissed it fairly quickly, because it leads to nothing, but it would have alerted me to the fact that my Queen was staring down the f-file straight at Black’s bewildered King.
That would have been an important piece of information when I moved on to Threats, because 1.Nd8, threatening 2.Qf7#, suddenly becomes an obvious candidate move. It is, in fact, the best move by some margin.
But in my preoccupation with c7, I got carried away with the protected d8 square and played 1.Bd8, which is parried by 1…Qd7, and although White is still winning after say 2.c5 dxc5 3.d6 Qxd6 4.Bxc7, it is nothing like the advantage after 1.Nd8.
Here are some of the possible continuations after 1.Nd8:
1…Qd7 2.Ne6+ Ke8 3.Nxg7+
1…f6 2.Ne6+ Kf7 3.Bxf6 Nxf6 4.Ng5+
1…Nf6 2.Bxf6 bxf6 3.Qxf6