The game Go
A couple of weeks earlier I found out that I can win the hardest setting of gnugo without too much trouble, so I've been playing go intermittently since then. I switched to a stronger AI program, handtalk, whose latest version is advertised to be as strong as amateur 1d. Well, I'm trying to advance forward right now. Then I'll go online and play with other players since a lot of the online servers are not friendly to newcomers whose strength are on the low side. Another reason is that I can adjust the strength of my opponent and won't feel too crushed if I lose.
However the bad thing is that it took too much time. Although I've been pretty cautious, it just happened that most of my time this evening was eaten by watching game online. Time just flew by. I'd better start working. Really. Okay, one more game and I'm off to work.