? Although this move looks natural (I for one expected it) it loses the game to a neat tactical continuation

! - Point being that after fxg4 there is Nxg4+ and Bxd4 is to follow

! - If Bxd4 then Black has another sac with Nxf3+ and once again Bxd4 comes with a strong attack..... best is fxg4, however Rxc4 and White still struggles

This makes things easier, Black can now be a full piece up (that poor Rook on h1)

Again fxg4 was better, but the position is lost regardless

Perhaps White wanted me to see and play Qc5+ leading to mate

But I didn't see it straight away, as had my eye on this sac for several moves

White graciously obliges the mate in one (Kxg4 also led to mate, but not as quick)