brainwagon "There is much pleasure in useless knowledge." — Bertrand Russell

19Apr/080

Some statistics on historical checkers games…

As part of my ongoing checkers work, I downloaded the Open Checkers Archive and wrote a simple bison/flex parser to read in the data. I am not illiterate when it comes to bison and flex, but it's usually long enough between uses that it takes me an hour or two to tinker these things together. But, an hour or so later, and I've got a simple parser that can read all the games. It doesn't do much of anything with the games at the moments, but having a parser allowed me to gather some really simple statistics about the archive. There are 22621 games in the archive, and totalling 1158096 moves. There are 276921 single jumps, 25405 double jumps, 2406 triple jumps, and just 7 quadruple jumps. There are 3626 wins for Black, 4803 wins for White, and 14192 draws.

I don't know exactly what I'll use this for quite yet, but I'm sure something will come to me.

Filed under: Checkers No Comments
19Apr/080

WebSDR on 40m and 80m in JO32KF

Read about a system called WebSDR on the softrock mailing list, and boy, is it ever cool. It is a software defined radio that is hooked to the internet. Multiple listeners (17 at the time I was on) can separately tune over portions of the 40m and 80m band, and have the sound streamed to their local machine via a nifty java applet. It's very, very cool. Well done!

WebSDR on 40m and 80m in JO32KF

Filed under: Amateur Radio No Comments