Thursday, 25 October 2012

Puzzle #134: Fillomino; Liar

This weekend is the Fillomino Filia 2 test on Logic Masters India. The test is written by Grant Fikes and Palmer Mebane. It's a repeat of last year's Fillomino Filia test and will feature 4 classic Fillomino puzzles, 2 variants from last year's test and 2 puzzles each of 6 new variants. There are preview puzzles posted of the different types on their blogs.
I like Fillomino puzzles. I haven't always liked them though. The first time I came across them I had a lot of trouble with them. It was because I then solved it purely by filling in numbers. Now I mostly go by dividing the grid along the grid lines, which makes it much easier for me to see everything.
I hadn't previously posted any fillomino puzzles. It was mostly because I couldn't get any of the variants to work nicely. For this test I figured I'd give it another go. I constructed a Liar Fillomino as that was the variant I suspect would cause me the most trouble in solving as the interaction was more tricky than in Slitherlink because of the bigger number set. This puzzle is tricky. There's a point after the opening where there's a tricky step to make progress. For overall difficulty it's leaning towards the hard puzzle in the test, which is rated at 16 points/minutes.
I made a new template for this puzzle type with dashed lines. You can still colour the cells in paint as the white in the dashed lines differs slightly from the background of the squares.

Rules for Fillomino

Follow regular Fillomino rules. Additionally, in each row and column exactly one of the clues is wrong.

Click to enlarge

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