FFF 16: Island in Stream or Stream in Island?

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.

Nurikabe Fillomino Follow regular Fillomino rules. A polyomino may only have at most one green square, and no two polyominoes containing green squares may touch orthogonally. Afterwards, shade the polyominoes not containing any green square. The shaded cells must form a single polyomino but may not have a 2×2 shaded area anywhere.

Difficulty 2.0/10 Master target 0:30 Expert target 1:30

FFF 16: Island in Stream or Stream in Island
Nurikabe Fillomino

Weird. Is the stream of size 32 or is the island is the one that is of size 32? Either way, Sky was a little bit hyped when he got the inspiration of this unusual puzzle.

FFF 15: 1, 2, 3

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 Shapes In addition to the regular Fillomino rules, the given polyominoes must appear in the grid. The polyominoes may be rotated but not reflected.

Difficulty 1.0/10 Master target 0:10 Expert target 0:50

FFF 15: 1, 2, 3
Fillomino Shapes

1, 2, 3! Sky was practicing to make even weirder puzzles, so he began with this simple puzzle.

FFF 14: I and U…err…E and O

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.

Easy As FillominEO Follow regular Fillomino rules. A number outside the grid gives the first even/odd number encountered from that position going into the grid along the row/column. (Of course, if said number is even, then it’s the first even number, and if said number is odd, then it’s the first odd number.)

Difficulty 5.0/10 Master target 1:00 Expert target 6:00

FFF 14: I and U…err…E and O
Easy As FillominEO

The story follows below, as it’s long.

FFF 13: Icerock Mountain

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.

Nondecreasing Fillomino In addition to the regular Fillomino rules, the numbers along a row reading from left to right and along a column reading from top to bottom must form a nondecreasing sequence. (A sequence is nondecreasing iff each number is less than or equal to the next number in the sequence.

Difficulty 4.5/10 Master target 0:50 Expert target 5:00

FFF 13: Icerock Mountain
Nondecreasing Fillomino

First feature of the natural landscape. Inspired from the cliff-y and large Icerock Mountain, Sky made a puzzle where a step means a climb. Sky challenges you; can you reach that 13?

FFF 12: Even More Untamed Numbers

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.

Greater-Than Fillomino In addition to the regular Fillomino rules, the inequality signs on the grid must be satisfied by the two numbers sandwiching it.

Difficulty 4.0/10 Master target 1:30 Expert target 3:30

FFF 12: Even More Untamed Numbers
Greater-Than Fillomino

Remember the last puzzle? Sky now has even more untamed numbers; simple cages of 4 numbers don’t work.

FFF 11: Untamed Numbers

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.

Sum Fillomino In addition to the regular Fillomino rules, the numbers inside each cage must sum to the number at the upper-right of the cage.

Difficulty 3.5/10 Master target 1:00 Expert target 2:30

FFF 11: Untamed Numbers
Sum Fillomino

Some circus performers need to tame their animals. Sky needs to tame his numbers.

FFF 10: Black Deja Vu

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.

Full Kropki Fillomino In addition to the regular Fillomino rules, the numbers must also satisfy the Kropki clues. A black circle is always between two numbers, one of which is exactly twice the other. A white circle is always between two consecutive numbers. All circles have been given.

Difficulty 3.0/10 Master target 0:30 Expert target 2:30

FFF 10: Black Deja Vu
Full Kropki Fillomino

Hasn’t this been done before? Well, while the former one uses quite a bunch of black circles, this one uses only a few. Probably because of the grid’s size…or maybe because of the fact that this is full, aka all circles given. Yeah, Sky found something neat to do with the circles, or the absence thereof.

FFF 9: Sandwiches

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.

Sandwich Fillomino Follow regular Fillomino rules, but blacken exactly two squares in each row/column. These black squares don’t have numerical values (in particular they may be adjacent to any other number including other black squares). A number outside the grid gives the sum of the numbers between the two black squares in the row/column.

Difficulty 2.0/10 Master target 0:30 Expert target 1:30

FFF 9: Sandwiches
Sandwich Fillomino

sandwich n. two or more slices of bread or the like with a layer of meat, fish, cheese, etc., between each pair
sandwich v. to insert between two other things
(Dictionary.com)
Sky is fond of sandwiches now, but he was somewhat surprised when he discovered another meaning of sandwich (and even more when he found five in Dictionary.com). He makes this puzzle to attempt to put the second meaning of sandwich above in action.

FFF 8: Fillocity is Back

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.

Skyscrapers Fillomino In addition to the regular Fillomino rules, the numbers must also satisfy the Skyscrapers clues. If the numbers are interpreted as buildings of said height, a number indicates the number of buildings visible from that position looking into the grid in the corresponding row/column. A building is visible if it’s not behind another building with equal or greater height.

Difficulty 2.0/10 Master target 0:20 Expert target 1:30

FFF 8: Fillocity Is Back
Skyscrapers Fillomino

Well, the mayor of Fillocity somewhere outside Manne asked Sky. Again. This time it’s not something insane though.

FFF 7: The Hybrid

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 Tapa Follow regular Fillomino rules; ignore the green numbers and suppose that they are simply obstacles in the grid (like an empty hole that doesn’t have any number in it). Afterwards, shade some polyominoes black such that the shaded polyominoes form a tapa: They must form a single polyomino, but there may not be any 2×2 square that is all black. The green numbers are Tapa clues: Each number gives the number of consecutive black cells around the 5 squares orthogonally/diagonally adjacent to it.

Difficulty 3.5/10 Target time 1:20

FFF 7: The Hybrid
Fillomino Tapa

Sky loves experimenting. By whatever insane thoughts, Sky managed to cross from Fillomino to Tapa, and got the amazing idea of making a hybrid of them. Is it well-executed? Well, this is an example…