I think a lot of people underestimate the vital role luck plays in chess. You need to be aware of all the paths of attack the other pieces have available to them and you have to construct defences to those attacks, but there're actually so many possibilities, you can't plan for everything. Seeing the opportunities when they present themselves is incredibly important, and more than once I've completely missed them. Maybe it helped, too, that when playing Lezlie I switched from brandy to green tea--Jasmine Dragon Phoenix Pearl from Coffee Bean and Tea Leaf--a gunpowder tea, meaning its leaves are hand rolled into little balls that unfurl in the water as the tea steeps. I bought it when I stopped in at the Coffee Bean and Tea Leaf on the way back from Comic-Con one day, and didn't realise until I'd brought it to the register that it cost twenty dollars. But I had a Vincent Vega moment--I had to know what a twenty dollar tea tasted like. The answer; damned good. Though not as caffeinated as I'd like.
I still have a lot of work to catch up on so I'd better get to it . . .