• 2006-05-14: The Mother of All Puzzles (~175 lines of perl code, ~2 seconds to run)
• 2006-04-30: Going to the Dogs (~30 lines of perl code, 2 long-ish regexps, ~2 seconds to run)
• 2006-04-02: Shades of Carnac: Common Themes in Threes (same solver as 2006-04-30... results in 21 combinations that have to be hand-picked through)
• 2006-03-12: 'Pumpkin Bumpkin' and Other Fun with 'P' and 'B' (~35 lines of perl code, with a parts-of-speech wordlist, ~3 seconds to run, 44 combinations to hand-pick through)
• 2006-03-05: Taking a Shot at SPACE (~25 lines of perl code, ~1 second to run, pretty easy as long as you're clear on the constraints)

("lines of code" is a very rough expansive estimate, and includes comments, blank lines, etc...)