FFF 6: LITS or LIST?

Fancy Fillomino February: This is a series of 28 (twenty-eight) 7×7 Fillomino puzzles over the February. Every 00.00 UTC+7 a new puzzle will be up. The basic Fillomino rules apply unless otherwise indicated.

LITS Fillomino Follow regular Fillomino rules. However, replace each polyomino of size 4 (tetromino) with one of L, I, T, or S, depending on its shape (each letter somewhat resembles the shape, but just in case (consider rotations and reflections as equal)). These tetrominoes must follow the rules of LITS; that is, they form a single polyomino, but there is no 2×2 area completely covered by these polyominoes (hence why there is no O tetromino), and no two identical tetrominoes are orthogonally adjacent (rotations and reflections, again, are equal).

Difficulty 4.5/10 Target time 2:00

FFF 6: LITS or LIST?
LITS Fillomino

A windmill is litsed– I mean, “listed” as one of Sky’s givens arrangements.

FFF 5: Yin Yang

Fancy Fillomino February: This is a series of 28 (twenty-eight) 7×7 Fillomino puzzles over the February. Every 00.00 UTC+7 a new puzzle will be up. The basic Fillomino rules apply unless otherwise indicated.

Even-Odd Fillomino In addition to the regular Fillomino rules, all odd numbers must form a single polyomino, and so are all even numbers.

Difficulty 3.0/10 Target time 1:00

FFF 5: Yin Yang
Even-Odd

A balance of everything.

FFF 4: The Independence

Fancy Fillomino February: This is a series of 28 (twenty-eight) 7×7 Fillomino puzzles over the February. Every 00.00 UTC+7 a new puzzle will be up. The basic Fillomino rules apply unless otherwise indicated.

Nonconsecutive Fillomino In addition to the regular Fillomino rules, no two consecutive numbers may be orthogonally adjacent.

Difficulty 3.0/10 Target time 1:20

FFF 4: The Independence
Nonconsecutive Fillomino

So devoid of numbers… Sky’s feeling void now. Or is he?

FFF 3: The Isolation

Fancy Fillomino February: This is a series of 28 (twenty-eight) 7×7 Fillomino puzzles over the February. Every 00.00 UTC+7 a new puzzle will be up. The basic Fillomino rules apply unless otherwise indicated.

Consecutive Fillomino In addition to the regular Fillomino rules, every polyomino must be orthogonally adjacent to another polyomino with a size exactly 1 greater or 1 less than the polyomino.

Difficulty 2.5/10 Target time 1:00

FFF 3: The Isolation
Consecutive Fillomino

Sky finds it hard to believe that one of the kids from the local kindergarten has no friends just because “he’s odd”. So Sky makes this puzzle to show that everyone else is odd, not him, and also that he can make friends by finding similar people to him. What a story.

FFF 2: The Guards

Fancy Fillomino February: This is a series of 28 (twenty-eight) 7×7 Fillomino puzzles over the February. Every 00.00 UTC+7 a new puzzle will be up. The basic Fillomino rules apply unless otherwise indicated.

Sentry Fillomino In addition to the regular Fillomino rules, if two numbers in the same row/column are equal, they must belong to the same polyomino.

Difficulty 1.0/10 Target time 0:15

FFF 2: The Guards
Sentry Fillomino

The guards are really incompetent! They make a puzzle that is easier than Sky’s currently easiest puzzle here.

FFF 1: The First Step

Fancy Fillomino February: This is a series of 28 (twenty-eight) 7×7 Fillomino puzzles over the February. Every 00.00 UTC+7 a new puzzle will be up. The basic Fillomino rules apply unless otherwise indicated.

Fillomino Divide the grid into polyominoes and put a number in each cell indicating the area of the polyomino it’s contained in. Two orthogonally adjacent numbers are equal if and only if they belong to the same region; in other words, no two regions of the same size may be orthogonally adjacent.

Difficulty 1.5/10 Target time 0:40

FFF 1: The First Step
Classic Fillomino

Sky has committed himself to a rather time-consuming project of constructing Fillomino puzzles for the entire February. Can he keep up with the deadlines?

Puzzle 50: Sea of Ships

Retrograde Battlemats.

Follow similar Fillmats rules. Divide the grid into several rectangles, each of which must have 1-unit width and a height of between 1 and 4 units inclusive (or vice versa). No two rectangles with equal area may be orthogonally adjacent. A number gives the size of the rectangle it’s contained in. Differences from usual Fillmats rules: You can have multiple numbers in the same rectangle (like Fillomino), and four rectangles may meet at a point.

Afterwards, interpret the rectangles as usual Battleships ships, and solve the resulting Retrograde Battleships puzzle. Mark some of the ships black so the exact quantity of ships as shown in the fleet below are marked (aka for this puzzle, 1 battleship of 4-unit length, 2 cruisers of 3-unit length, 3 destroyers of 2-unit length, and 4 battleships of 1-unit length). No two ships may touch each other even orthogonally. Numbers outside the grid gives the number of ship segments in the corresponding row/column.

“Have you identified the ships Sky?”
“What? Are you expecting me to do this task really quickly? I even have no prior experience.”
“Just try.”
“Yeah, I’m trying if you can’t tell. Or actually…I think we can deduce all the ships from only this information.”
“Are you serious?”
“Hopefully so. Just try; if you miss something, I’ll try to identify something that will help. But see, this is more efficient with not that much cost to identify everything…”
“Yeah yeah I know, Sky the Puzzle Master. Okay, let me solve this.”
“Also, seeing from the information, if it’s unique then it should be medium, but let’s see…”

Puzzle 50: Sea of Ships
Retrograde Battlemats

Yay 50 puzzles! New hybrid.

This is mostly a proof of concept. I’m posting a lot of those. However, I do see quite neat interactions possible; I actually put in one of those here.

Yes, I forgot a few of Fillmats rules because I rarely see them. Heck, the correct name is actually Fillmat, but let’s use the “s” for “my” “variation”. Blargh.

Anyway, Puzzle 51 has also been planned, and if I schedule correctly, it should show up in about 21.5 hours aka midnight PST.

Puzzle 49: What’s to the West?

Fillomino Borders.
Divide the grid into polyominoes such that no two polyominoes with the same area touch each other, and put a number in each square indicating the area of the polyomino it is contained in. In addition, these clues exist at the border and must be satisfied by the two numbers that each clue touch:
– Inequality signs: The inequality must be satisfied (the number pointed by the pointy part must be smaller than the other)
– Black circles: One of the numbers must be exactly twice of the other number
– White circles: The numbers must be consecutive
– Thin borders: The two numbers must be equal
– Thick borders: The two numbers must be different

What’s to the west? Sky doesn’t know. Is it a treasure? An island yet to be discovered? A source of puzzles? No one knows. But one thing for sure, Sky has made this medium puzzle as a teaser.

Puzzle 49: What’s to the West?
Fillomino Borders

Mostly an introduction to Fillomino Borders, a mesh-up of three Fillomino variants and an addition of “no-border” clue to counter Fillomino Walls’ “border” clue. Also a very obvious theme, although I began the construction from the outer ring before going for the cross walls and the remaining theme. I might revisit this trick again.

Also, if you have read my Flygrass Town article, you should know what’s to the west.

Puzzle 48: And Happy New Year!

Fillomino Greater-Than-Kropki. Follow regular Fillomino rules. In addition, inequality signs and Kropki circles appear; these must be followed.

…and Happy New Year! It’s 2013 in Indonesia now, and also in Flygrass Town. Actually I’m not sure what year it is in Flygrass Town—some sources say 2413—but surely new year. It’s still cold, reading 9°C now. Okay, it isn’t exactly cold for people used to it, but still. Sky celebrates the occasion with another puzzle, a medium puzzle combining two of his favorite genres.

Puzzle 48: And Happy New Year!
Fillomino Greater-Than-Kropki

When you’re reading this, I will be most likely celebrating New Year in Pangandaran with my family. Beginning 2013 with a new variant puzzle, with my classic style. Hence my resolution is to be creative with whatever knowledge I have (and obviously to learn more). Enjoy the puzzle and Happy New Year!

Puzzle 46: Black, Black Everywhere

Kropki Fillomino. Follow regular Fillomino rules. In addition, Kropki circles appear, although not necessarily all. Click above for better rules.

UPDATE 02-Jan-2013: Blargh. First, a non-unique puzzle with unknown amount of solutions. Second, a non-unique puzzle with 11 solutions. I hope I managed to reduce the number of solutions in the second puzzle by 90.91% with the addition of a circle.

Medium-hard, after erring twice. Blargh.

Puzzle 46: Black, Black Everywhere
Kropki Fillomino