Ignoring cutpurse was definitely a mistake. It's possible that inn cutpurse inn cutpurse would work better for you than double tac.especially since he didn't buy coin but only relied on his vault. knocking 2 cards off his vault discard might have left him with 7. From playing with you I have the impression that your usual focus on big money screwed you up here. You kept using 3 and 4 hands for silver, when you were planning on discarding them anyway, and they were nothing more than placeholders, not worth more than one. Even if not cutpurse, embargo or great hall would have been better buys. I see he bought potion with an eye on golem, which didn't work out for him. As player 2 golem single tac might also have been better than mirror. I like double tac myself, and play engines even when bm makes more sense. But mirroring from player 2 is generally asking to lose.