Slitherlink (Pentomino, Missing) by Freddie Hand

Slitherlink by Freddie Hand

PDF

Theme: S for Slitherlink

Author/Opus: This is the 5th puzzle from guest contributor Freddie Hand.

Rules: Variation of Slitherlink rules. Draw a set of eleven pentomino-shaped loops (i.e., all but one of the given shapes) consisting of vertical and horizontal segments between the dots. Numbers inside a cell indicate how many of the edges of that cell are part of the loops. The pentomino-shaped loops cannot touch each other, not even diagonally, but may be rotated or reflected.

See also this example:

Slitherlink Missing Pentomino

Answer String: For each marked row, enter the length in cells of each connected group inside the loops from left to right. Separate each row’s entry with a comma.

Time Standards (highlight to view): Grandmaster = 8:00, Master = 10:30, Expert = 21:00

Note: Follow this link for other Slitherlink variations and this link for classic Slitherlink. If you are new to this puzzle type, here are our easiest Slitherlink puzzles to get started on. More Slitherlink puzzles can be found in The Art of Puzzles, Slitherlink and Variations, and our beginner-friendly book Logic Puzzles 101.

Battleships (Minesweeper) by Anurag Sahay

Battleships by Anurag Sahay

PDF

Theme: Contrast

Author/Opus: This is the 1st puzzle from guest contributor Anurag Sahay.

Rules: Variation of standard Battleships rules. Instead of exterior clues, clues inside the grid indicate the number of adjacent squares, including diagonally adjacent squares, containing ship segments. Ships do not sit on cells with numbers.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a ship segment appears (enter just the last digit for any two-digit number). If the row is empty, enter 0. Enter these numbers as a single string with no separators.

Time Standards (highlight to view): Grandmaster = 4:45, Master = 9:30, Expert = 19:00

Note: Follow this link for more variations on Battleships and this link for classic Battleships. More Battleships puzzles can be found in Battleships and Variations, in The Art of Puzzles, and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Pentominous by JinHoo Ahn

Pentominous by JinHoo Ahn

PDF

Theme: Where is PI?

Author/Opus: This is the 1st puzzle from guest contributor JinHoo Ahn.

Rules: Standard Pentominous rules.

Answer String: Enter the letter associated with the pentomino occupying each cell in the marked rows from left to right starting with the 1st row and then entering the 10th row, separating the groups with a comma. Use CAPITAL LETTERS!

Time Standards (highlight to view): Grandmaster = 2:30, Master = 3:15, Expert = 6:30

Note: Follow this link for other Pentominous puzzles. If you are new to this puzzle type, here are our easiest Pentominous to get started on. More Pentominous puzzles can be found in Plenty o’ Pentominous by Grant Fikes and Murat Can Tonta and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Nurikabe by Michael Tang

Nurikabe by Michael Tang

PDF

Theme: Pairs of Sevens

Author/Opus: This is the 5th puzzle from guest contributor Michael Tang.

Rules: Standard Nurikabe rules.

Answer String: Enter the length in cells of each of the black segments (the unnumbered, connected “ocean”) from left to right for the marked rows. Separate each row’s entry from the next with a comma.

Time Standards (highlight to view): Grandmaster = 2:00, Master = 3:15, Expert = 6:30

Note: Follow this link for classic Nurikabe puzzles on this website and this link for other variations on Nurikabe puzzles. If you are new to this puzzle type, here are our easiest Nurikabe puzzles to get started on. More Nurikabe puzzles can be in The Art of Puzzles, in our beginner-friendly book Logic Puzzles 101, and in the e-book Nurikabe by Ashish Kumar.

TomTom by Murat Can Tonta

TomTom by Murat Can Tonta

PDF

Theme: Sixes

Author/Opus: This is the 159th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard TomTom rules, using the integers 1-6.

Answer String: Enter the 5th row from left to right followed by the 5th column from top to bottom. Separate the entries with a comma.

Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:30, Expert = 5:00

Note: Follow this link for other TomTom. If you are new to this puzzle type, here are our easiest TomTom to get started on. More TomTom puzzles can be found in The Art of Puzzles, and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Fillomino by Murat Can Tonta [Birthday Bonus]

Today is our puzzlemaster Murat Can Tonta’s birthday and he has created this special 9-9-themed Fillomino puzzle for you (~Friday difficulty).

Fillomino by Murat Can Tonta

PDF

Theme: A Birthday Fillomino

Author/Opus: This is the 158rd puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Fillomino rules.

Answer String: For each cell in the marked rows/columns, enter the area of the polyomino it belongs to. Enter just the last digit for any two-digit number. Start with the 4th row, followed by a comma, followed by the 6th column.

Time Standards (highlight to view): Grandmaster = 4:45, Master = 7:15, Expert = 14:30

Note: Follow this link for other classic Fillomino and this link for more variations on Fillomino puzzles. If you are new to this puzzle type, here are our easiest Fillomino puzzles to get started on. More Fillomino puzzles can be found in The Art of Puzzles, in Fill o’ Fillomino and Fill o’ Fillomino 2 by Grant Fikes, and in our beginner-friendly book Logic Puzzles 101.

Masyu by Grant Fikes

Masyu by Grant Fikes

PDF

Theme: Logical

Author/Opus: This is the 316th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Masyu rules.

Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. If the loop only has vertical segments in the marked row, enter 0. Separate each row’s entry with a comma.

Time Standards (highlight to view): Grandmaster = 0:35, Master = 0:45, Expert = 1:30

Note: Follow this link for other classic Masyu. If you are new to this puzzle type, here are our easiest Masyu to get started on. More Masyu puzzles can be found in The Art of Puzzles and in our beginner-friendly book Logic Puzzles 101.