Puzzle #175: Tetromino Areas

This is the third practise puzzle for this year's UKPA Open.

The first time I wrote this was for the 2014 Polish Championship Team Round. It was a simpler variant of the more common Pentomino Areas. Originally I was going to use LITS for this type, but I liked that better in the second group. This was the second type I thought of. This puzzle is the harder of the two puzzles. Neither is overly difficult. If you see the opening of the puzzle it should cause no problems.

Rules:

Place the given set of tetrominos in the grid so that they don't touch each other, not even diagonally. Tetrominos may be rotated and reflected. Each black-bordered region must contain a single tetromino.

Example

 

 

Puzzle

 

World Puzzle Championships 2012: Round 10 Anthology

This round seems to be a dedication to previous championships. There's no actual explanation given, but it seems to be the fairest guess. You can see a bit of development in the type of puzzles over the years. From more observation and word types to the now more common logic types. I'm not exactly sure on why certain types were chosen.Types like Yajilin and Corral can't be that specific to a championship. A few of the ones from championships I've been to are easier to understand. The round will last 90 minutes for 20 puzzles, which is a pretty high average per puzzle.
I've only made 3 puzzles because many of the puzzle types I either don't really find interesting to construct or too hard to construct. The first puzzle I made is a Hiroimono. It's nothing new and many people will have come across it a few times. I'd just never tried it and wondered how it's done. I haven't really figured out how to best make them and I don't think it's too hard. At least I learned a bit about some of the tricks of the genre with it though. The Jumping Crossword I wanted to try to make for a while but I never find my results at all interesting. I don't really think this one is anything special either. I'm not sure how to make them turn out great but that's a general problem with word puzzles for me. The last one is a Tetrascope. I like polyomino genres, so I figured I'd give it a try. It's not really hard but then again I don't really think they can be.
Enjoy.

Puzzles can be found below.

Croatian Puzzle Set

I had been asked to write a puzzle set for a competition in Zagreb last weekend. I wrote a set of puzzles which was a mix of Dutch and Japanese, familiar and unfamiliar, classic and simple variations. There's a lot of puzzle types in here that I havent actually posted on my blog before. The timing of the set was set at 75 minutes, which was longer than the fastest testing. But I have learned from earlier experiences that testing times don't always measure up to the actual test solving. I've added the scores for each puzzle, which equal to 2 points per minute. I think it worked out well, with a mix of easier and harder puzzles. If anyone actually solved them in copetition, I'd love to hear about it.

So here's 14 puzzles in a single post, the most I have done so far. I hope this makes up a bit for the hiatus of a month before. It would of course be easiest to just upload the PDF, but blogspot doesn't seem to offer that option. So instead this post will have all puzzles below.