Exploiting a minor weakness

Unfortunately chess.com only has bughouse replay on one board, but actually I was concentrating on one board.  c6 is a wasted move.  Of all the threats that White has, the most serious is h6.  This kind of position is an argument against Black playing a passive opening.  After a passive opening, Black will always have some weak squares at this point, but he should also have a pawn in the center in return.  e5 is also weak.

Against a weak player, h6 is probably a good move.  Against a strong player, take into consideration that he might play p@g6.

Black has played Ng5 which is a mistake.  His knight is trapped.  Correct was Nd5.  Black should not worry about p@d6 because Bxd6 exd Qxd6,  In general, moving the c-pawn weakens your position.  Unlike the e-pawn and the d-pawn, c7 is only guarded by one piece, and its a piece you don't want to give up.

p@g6 is probably a mouse-slip, as it doesn't address either of Black's problems, the weak square h6 or the position of the Knight.

Incidently White does not have the same problem on h3.  The diagonal from c8 to h3 is closed by the pawn at e6 and it is also blocked by the Knight at g4.  White also covers squares that could otherwise be used by an enemy Knight, e4, f4, and h4.

So we reach this position where Black has lost a knight.  In a position where only a few trades have occurred, the loss of a knight is significant, which is something you should think about before sacrificing one on f7 without a good followup.

Black just place a pawn on c4.  He wants to get a Queen trade to help his partner.  He would have been better off placing the pawn on h6.  The pawn on c4 will be ignored.

All things being equal, this is a lost position for Black.

Black is trying to get counterplay by attacking the pawn on g7 and supposedly attacking g3.  But g3 is well defended.  His problem on g7 is not so much the pawn, but the weakness on h6.  The absence of a pawn on h6 also lets me maintain a Bishop on g5, putting pressure on h6, f6, and e7.

At this point he resigned.  I have gotten my Knight to the critical h6 square.  While his knight guards against Qg7+,  Qg8 Rxg8, Nf7 is mate.  Smothered mates are much more common in bughouse than in chess, because in chess it would be impossible to get the Queen to g8.