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10 January 2009 @ 10:34 am
Puzzles/Only Connect on BBC  
Woke up early to do the OAPC (Turkish) online competition for January, the first in a series preceding the WPC. Things went rather well, if rather well means finishing all the 40.1 problems in 2 hours, and then after checking and finding 2 entry mistakes, getting the optimum on the optimizer with 3 minutes left. So I think its a perfect score with maybe an entry error in one place. The score is not as important as the fact these were really fun puzzles, and really friendly with my solving style, so I'll be excited to see these types at the WPC if some reappear. My favorite new puzzles were probably Tapa, the Japanese Sums/Battleships combo, and the Sigma Snake (the fourth one was awesome!). I also loved the Tetroscope. Normally, these tile-fitting tetromino/pentomino puzzles are very unfriendly to me, but these were very solvable, and while the fourth one was tough, I loved the way it worked out at the end. Probably my favorite puzzle in the set. The optimizer was the kind I like - a puzzle with an absolutely best answer, but with many close but wrong answers on the way to it. I got progressively better but eventually saw the way. There were 2 questionable borders in the Quicksort (#2 and #3 had a wall of intermediate thickness). This is similar to the star battle problem we had in bulgaria, but I was fairly confident the intermediate thickness walls were real walls because of uniqueness issues.

Outside of puzzles, I've become absolutely fascinated with the BBC4 series Only Connect after I stumbled on it when heading to Buzzerblog after an lj friend linked there. The two parts I've seen so far of the championship finals represent a rather unseen puzzle-type (lateral thinking to make connections of things) for a game show, with a phenomenal contestant team that inspires with their brilliance. Check it out; I know I'll have to find a way to download other episodes of this series which would never work in the states.
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( 4 comments — Post a new comment )
(Anonymous) on January 10th, 2009 07:06 pm (UTC)
OAPC
Thanks for the heads up on this puzzle competition.

I like that they had 4 puzzles of each 10 types rather than 2 puzzles of 15 types. It gives me more of a chance to learn nuances about a puzzle that I can use in the next instance. It also gives me more encouragement because I can solve more of them.

I got through 25, including all 4 of Tapa (happy to see it again after Forsmarts6), Masyu (the Nikoli puzzle I'm most familiar with), Consectutive, Sigma Snake (I enjoyed it too; this was more fun than the snakes from Forsmarts6), Wittgenstein Briquet (the first page I grabbed; surprised I was so successful given that they're 6.x points each), and Quicksort (burned through all 4 in the last ~25 minutes or so).

I love tetris, but puzzles with tetrominos/pentominos elude me for some reason. Maybe I just haven't seen enough of them in practice to capture the little nuances that make them easier.

I'm looking forward to these monthly warmups from the WPC guys.

Trayton
[info]decand on January 13th, 2009 12:50 am (UTC)
Those were some excellent puzzles. My unofficial (couldn't do them at the contest time) 2.5 hour run netted everything but the snakes and the optimizer. I'm sure I would've had less if I was worrying about answer formats and entering them all, though....

If the quality of the other monthly contests is the same, I will be a happy camper. Too bad I won't be able see the main course at the WPC though (those Hunting American solvers!).
motris[info]motris on January 13th, 2009 01:15 am (UTC)
Definitely agreed on the quality of the puzzles, and I think having a lot of "intermediate" puzzles works well in a competition setting compared to one really big tough one as is sometimes the case on the USPC for 40-45 points. My only complaints would be that the scoring of individual puzzles seemed a little odd to me, and some of the answer entry was "hard" to do, but these are minor problems with a fun first test. To think there might be 6-8 more of these ... :).
(Anonymous) on January 14th, 2009 11:25 pm (UTC)
Only Connect Part Three
Buzzerblog posted the third part of the grand finale: http://buzzerblog.flashgameshows.com/weekend-replay-part-three-of-only-connect/

The wall was easier than the first two rounds, but the Only Consonants was killer. Who knows Byron quotes anyway?

Trayton