Puzzle 129 (Symmetry Heyawake)

This is a Symmetry Heyawake puzzle.

Rules (from Grant Fikes's blog): In this Room and Reason [Heyawake] puzzle, a room with an S in it must have 180-degree rotational symmetry, and a room with an A in it must NOT have 180-degree rotational symmetry. The rules are otherwise unchanged.

Theme: All Clues

Puzzle 118 (Arrow Sudoku)

This is an Arrow Sudoku puzzle.

Theme: Wheel

Puzzle 116 (Tight-Fit Sudoku)

This is a Tight-Fit Sudoku puzzle. This type was created by Thomas Snyder.

Theme: Friendly Diagonal

Range: 1-8

Puzzle 114 (Panoramic Skyscrapers)

This is a Panoramic Skyscrapers puzzle. Standard Skyscrapers rules, except that clues are given between two rows or columns. These clues give the sum of the Skyscrapers clues of the two rows/columns they border.

I first saw this variation on the 2016 USPC written by Michael Rios; I'm unsure if it has been done elsewhere.

Theme: Clue Symmetry

Puzzle 110 (All Threes Slitherlink)

This is an All Threes Slitherlink puzzle. Rules (from Palmer Mebane's blog): This is a Slitherlink puzzle, with a twist. Every 3 in the puzzle is given to you. That is, if the solution has three segments around a single grid square, there is a 3 in that square.

Puzzle Ramayan + Puzzle 107 (Bosnian Snake)

I am the author of the second round of Puzzle Ramayan (Shading and Loops) being held on Logic Masters India this weekend. Here is a link: http://logicmastersindia.com/PR/201702/. 

This is a practice puzzle for Bosnian Snake.

Rules (from IB): Locate a snake (a 1 cell-wide single continuous path) in the grid whose head and tail are given. The snake does not touch itself, even diagonally. Numbers outside the grid indicate the number of snake cells in that row/column. Numbers inside the grid indicate how many of the 8 cells around it are used by the snake. (The O's mark the head and tail of the snake in this puzzle formatting; in the IB, they are marked by black circles.)

Puzzle 104 (Path Fillomino)

This is a Path Fillomino puzzle. This type was created by Palmer Mebane.

Puzzle 101 (Fillomino) [LITS]

This is a Fillomino LITS puzzle.

Puzzle 100 (Tapa) [Difference]

This is a Tapa [Difference] puzzle for TVC XX practice. (from IB:) Follow regular Tapa rules. Additionally, replace each clue with two nonzero digits which difference is equal to the clue.

Puzzle 98 (Outside Kropki)

This is an Outside Kropki puzzle. This was US Team practice for the 2016 WPC.

From WPC Instruction Booklet: Fill in the whole grid with digits 1 to N (where N is the size of the grid) so that each row and column contains each digit exactly once. If there is a white dot between a pair of orthogonally adjacent cells, then the cells must contain numbers whose difference is exactly one. If there is a black dot between a pair of orthogonally adjacent cells, then the cells must contain numbers whose quotient is exactly two. There can be either a black dot or a white dot between 1 and 2. All dots from each row and column have been removed from the grid. They must appear in the corresponding row or column in the given order. There may be some gaps between the circles. All possible dots have been given.

Puzzle 93 (Sentry Nurikabe)

This is a Nurikabe variation inspired by Anderson Wang's Sentry Fillomino.

Rules: Standard Nurikabe rules; also, no two regions of the same size can be in the same row or column.

Puzzle 90 (Irregular Fillomino)

This is an Irregular Fillomino puzzle (a type at WPC 2016).

Rules (from WPC 2016 Instruction Booklet):

Divide the grid along the given lines into regions so that no two regions with the same area share an edge. Each given number must represent the area of the region it belongs to - counted in number of cells of that region, regardless of the sizes of those cells. A region may contain none, one, or more of the given numbers. 

Puzzle 84 (Product Cave)

This is a Product Cave puzzle.

Rules (from Grandmaster Puzzles): Variation of Cave rules. Each clue represents the product of the # of row cells visible (including the cell itself) with the # of column cells visible (including the cell itself).

Puzzle 79 (Island Line Nurikabe)

This is a Nurikabe variation inspired by Palmer Mebane's Line Nurikabe.

Rules: Standard Nurikabe rules, except that there may not be four consecutive white cells in a row or column. (Equivalently, you can not overlay an I tetromino on any island cells.)

Puzzle 76 (Nurikabe Pairs)

This is a Nurikabe Pairs puzzle. This variation was created by Palmer Mebane.

Rules, with the change that every region of unfilled cells must contain exactly two numbers (instead of one) and have total size equal to the sum of the two numbers. (rules taken from Palmer Mebane's blog)

Puzzle 65 (Shape Fillomino)

This is a Shape Fillomino puzzle. This variation was created by Palmer Mebane.

Rules (from Grandmaster Puzzles): 

Standard Fillomino rules. Also, the shapes shown [next to] the grid must appear as polyominoes in the grid. Shapes may be rotated, but may not be reflected.

Puzzle 60 (Crosslink)

This is a Crosslink puzzle. This puzzle type was created by Palmer Mebane.

Rules

Puzzle 54 (Star Fillomino)

This is a Star Fillomino puzzle.

Rules: Place two stars in every row and column so that no two stars are in cells that share a corner or an edge (Star Battle rules excluding two stars per region rule). Use standard Fillomino rules for all of the remaining cells.

Puzzle 21 (Snake Fillomino)

This is a Snake Fillomino puzzle.

Rules: A snake with a head and tail and unknown length must be drawn in the

grid so that it contains all shaded cells. The snake does not touch itself, even at

a point. The remaining spaces must be divided into polyominoes satisfying the

usual Fillomino rules. The snake may touch polyominoes of the same size as

itself. (rules and puzzle type taken from Fillomino-Fillia 2 Puzzle Pack by Palmer Mebane and Grant Fikes)

Puzzle 20 (Four-Color Fillomino)

This is a four-color Fillomino puzzle.

Rules. Also, it must be possible to shade all polyominoes using four colors so that no bordering polyominoes are the same color (in other words, the grid must allow a four-color shading). (rules based on Grandmaster Puzzles Checkered Fillomino rules)

My first variation puzzle!