Archive for the ‘Puzzle’ Category:

Sudoku by Grant Fikes

Sudoku by Grant Fikes

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Secret Eights

Author/Opus: This is the 362nd puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Sudoku rules.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:15, Expert = 4:30

Solution: PDF; a solution video is also available here.

Note: Follow this link for other classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Sunday Stumper: Tapa (Mastermind) by Serkan Yürekli

Since 2021, we have posted some extra difficult Sunday Stumpers, about once a month. These will be quite tough puzzles, but with a logical path to be found (and solution videos to help). This first Sunday Stumper of 2022 is a Tapa variation from Serkan Yürekli.

Tapa (Mastermind) by Serkan Yürekli

(view directly for a larger image)

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the composite Yajilin mode where left click marks cells, right click marks dots in cells or X’s on edges, left click+drag draws lines.)

Theme: Mastermind 2022

Author/Opus: This is the 357th puzzle from our managing editor Serkan Yürekli.

Rules: Standard Tapa rules. Also, the numbers given between the grids show the total number of black cells in the same position in that row or column. A row or column without such a clue may have any number of common black cells including zero.

See also this example:

Tapa (Mastermind) example by Serkan Yürekli

Difficulty: 5 stars

Time Standards (highlight to view): Grandmaster = 33:00, Master = 55:00, Expert = 1:50:00

Solution: PDF; a solution video is also available here.

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

Fillomino by Prasanna Seshadri

Fillomino by Prasanna Seshadri

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a composite mode for line/edge drawing and a number entry mode.)

Theme: 2022 Duality

Author/Opus: This is the 222th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Fillomino rules.

Difficulty: 4 stars

Time Standards (highlight to view): Grandmaster = 6:30, Master = 9:00, Expert = 18:00

Solution: PDF; a solution video is also available here, and an Art of Puzzlecrafting video from Prasanna describing how he made the puzzle is here.

Note: Follow this link for classic Fillomino and this link for Fillomino variations. 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 books Logic Puzzles 101 and Starter Pack 1: Fillomino.

Skyscrapers (Sum) by Ashish Kumar

Skyscrapers (Sum) by Ashish Kumar

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: The Rising of 2022

Author/Opus: This is the 84th puzzle from our contributing puzzlemaster Ashish Kumar.

Rules: Variation of Skyscrapers; each clue represents the sum of the heights of the visible buildings in that direction.

Difficulty: 4 stars

Time Standards (highlight to view): Grandmaster = 5:45, Master = 11:00, Expert = 22:00

Solution: PDF; a solution video is also available here.

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

Thermo-Sudoku by R. Kumaresan

Thermo-Sudoku by R. Kumaresan

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Warm Up for 2022

Author/Opus: This is the 5th puzzle from guest contributor R. Kumaresan.

Rules: Standard Thermo-Sudoku rules.

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 5:15, Master = 7:15, Expert = 14:30

Solution: PDF; a solution video is also available here.

Note: Follow this link for more Thermo-Sudoku puzzles. If you are new to this puzzle type, here are our easiest Thermo-Sudoku to get started on. More Thermo-Sudoku puzzles can be found in The Art of Sudoku 2 and Masterpiece Sudoku Mix 2.

Kurotto by Grant Fikes

Kurotto by Grant Fikes

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Happy New Year

Author/Opus: This is the 361st puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Kurotto rules.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:15, Master = 2:15, Expert = 4:30

Solution: PDF; a solution video is also available here.

Note: Follow this link for classic Kurotto puzzles and this link for variations on Kurotto puzzles. If you are new to this puzzle type, here are our easiest Kurotto to get started on. More Kurotto puzzles can be found in the ebook Kurotto by Prasanna Seshadri.

Battleships (Minesweeper) by Jin Hoo Ahn

Battleships (Minesweeper) by JinHoo Ahn

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between ship placement and shading modes. In ship placement mode, right click gives sea, left click gives circle/square, left click and drag for rounded ships.)

Theme: 2021 and 2022

Author/Opus: This is the 38th puzzle from our contributing puzzlemaster JinHoo Ahn.

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. Use the indicated fleet.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:15, Master = 2:15, Expert = 4:30

Solution: PDF; a solution video is also available here.

Note: Follow this link for classic Battleships and this link for Battleships variations. If you are new to this puzzle type, here are our easiest Battleships to get started on. 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.

Yajilin by Murat Can Tonta

Yajilin by Murat Can Tonta

PDF

or solve online (using our beta test of Penpa-Edit tools using a composite mode where left click inside cell shades square, left click + drag draws line segment, right click inside cell adds dot, and right click on cell edge adds an x.)

Theme: Welcome to 2022

Author/Opus: This is the 217th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Yajilin rules.

Difficulty: 1 star

Time Standards (highlight to view): Grandmaster = 0:40, Master = 1:15, Expert = 2:30

Solution: PDF; a solution video is also available here.

Note: Follow this link for classic Yajilin and this link for Yajilin variations. If you are new to this puzzle type, here are our easiest Yajilin to get started on. More Yajilin puzzles can be found in The Art of Puzzles 2, in Yajilin by Murat Can Tonta and Prasanna Seshadri, and in our beginner-friendly book Logic Puzzles 101.

Meandering Word Search by Serkan Yürekli

See more discussion of the puzzles from the United States’ 2021 Puzzle Grand Prix on this post. Note there are some construction details and potential spoilers on that post so view it after you solve.

Meandering Word Search by Serkan Yürekli

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab mode to shift between letter entry, line drawing, and shape entry — for word list marking — modes)

Author/Opus: This is the 356th puzzle from our managing editor Serkan Yürekli.

Rules: Combination of Word Search and Meandering Words rules (see prior posts, and below). Each bold word in the given list should be either located as in a Word Search (possibly filling in missing letters in the grid) or should be placed in an outlined region as in a Meandering Words puzzle.

Meandering Words rules: Place a letter into each empty cell so that each outlined area has exactly one bold word from the given list. Cells that contain the same letter cannot be placed in adjacent cells that share an edge or corner. Each outlined area must contain the word from the first letter to the last letter such that consecutive letters within an outlined area are orthogonally adjacent. (In other words, for each region it must be possible to draw a path that starts at the first letter and ends at the last letter, going through each other cell exactly once.)

Word Search rules: Locate the bold words in the given list in the grid, running in one of eight possible directions horizontally, vertically, or diagonally. Some letters in the middle of the grid are missing and must be discovered while solving.

Difficulty: 4.5 stars (estimate based off competition points; timing standards not available from our usual testers)

Solution: PDF

Note: Follow this link for other Word puzzles.

Meandering Words by Serkan Yürekli

See more discussion of the puzzles from the United States’ 2021 Puzzle Grand Prix on this post. Note there are some construction details and potential spoilers on that post so view it after you solve.

Meandering Words by Serkan Yürekli

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab mode to shift between letter entry, line drawing, and shape entry — for word list marking — modes)

Author/Opus: This is the 355th puzzle from our managing editor Serkan Yürekli.

Rules: Place a letter into each empty cell so that each outlined area has exactly one bold word from the given list. Cells that contain the same letter cannot be placed in adjacent cells that share an edge or corner. Each outlined area must contain the word from the first letter to the last letter such that consecutive letters within an outlined area are orthogonally adjacent. (In other words, for each region it must be possible to draw a path that starts at the first letter and ends at the last letter, going through each other cell exactly once.) Gray cells indicate the position of the first letter in that region.

Difficulty: 4 stars (estimate based off competition points; timing standards not available from our usual testers)

Solution: PDF

Note: Follow this link for other Word puzzles.