Archive for the ‘Loop/Path’ Category:

Sunday Stumper: Slitherlink (Cipher; Even Rows/Columns) by John Bulten

This year, we have started to have 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 fourth Sunday Stumper is a Slitherlink puzzle with two variant rules added to it.

Slitherlink by John Bulten

PDF

or solve online (using our beta test of Penpa-Edit tools; in default edgexoi mode: left-click+drag draws line, right click marks X on edge, clicking inside a cell alternates color to yellow then green then white; hitting tab will alternate to a number entry mode that can be used to write over the letter clues and hitting tab again will go back to edgexoi.)

Theme: From Here to Maternity

Author/Opus: This is the 78th puzzle from our contributing puzzlemaster John Bulten.

Rules: Standard Slitherlink rules. The letters A, M, O, and Y stand for different digits from 0 – 3. Also, an even number of cells in each row and in each column must be inside the loop.

Difficulty: 4.5 stars

Time Standards (highlight to view): Grandmaster = 17:30, Master = 25:00, Expert = 50:00

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

Note: Follow this link for classic Slitherlink and this link for Slitherlink variations. 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.

Slitherlink (Turning) by Murat Can Tonta

Myopia by Ashish Kumar

PDF

or solve online (using our beta test of Penpa-Edit tools; in default edgex mode: left-click+drag draws line, right click marks X on edge, tab shifts to a circle shape drawing mode that can help mark the vertices with different circle choices with another tab going back to default edgex)

Theme: Circular Logic

Author/Opus: This is the 197th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Draw a single, non-intersecting loop that only consists of horizontal and vertical segments between the dots. Numbers inside a cell indicate the number of turns taken by the loop at the four dots around it.

Also, see this example:

Myopia by Serkan Yürekli

Difficulty: 4 stars

Time Standards (highlight to view): Grandmaster = 5:00, Master = 10:00, Expert = 20:00

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

Note: Follow this link for other Loop/Path puzzles. The puzzle styles featured this week are part of the book Loop Variety Collection by Ashish Kumar and Murat Can Tonta.

Maxi Loop by Murat Can Tonta

Maxi Loop by Murat Can Tonta

PDF

or solve online (using our beta test of Penpa-Edit tools; in default linex mode: left-click+drag draws line, right click marks X on edge)

Theme: Four T’s

Author/Opus: This is the 196th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Draw a single, non-intersecting loop in the grid that passes through all white cells. If a number clue is given in a bold region, that number indicates the total count of cells passed through by the largest connected loop section(s) in the region.

Also, see this example:

Maxi Loop by Serkan Yürekli

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 4:30, Master = 8:00, Expert = 16:00

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

Note: Follow this link for other Loop/Path puzzles. The puzzle styles featured this week are part of the book Loop Variety Collection by Ashish Kumar and Murat Can Tonta.

Round Trip by Ashish Kumar

Round Trip by Ashish Kumar

PDF

or solve online (using our beta test of Penpa-Edit tools; in default linex mode: left-click+drag draws line, right click marks X on edge)

Theme: Clockwise Sequence

Author/Opus: This is the 67th puzzle from our contributing puzzlemaster Ashish Kumar.

Rules: Draw a single loop in the grid which may cross itself orthogonally, but otherwise does not touch or retrace itself. The clue numbers to the left/right of the rows indicate the number of squares visited by the nearest section of the loop that travels horizontally in the rows. The clue numbers to the top/bottom of the columns indicate the number of squares visited by the nearest section of the loop that travels vertically in the columns.

Also, see this example:

Round Trip by Serkan Yürekli

Difficulty: 2.5 stars

Time Standards (highlight to view): Grandmaster = 3:00, Master = 4:45, Expert = 9:30

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

Note: Follow this link for other Round Trip puzzles. Some more Round Trip puzles can be found in the book Loop Variety Collection by Ashish Kumar and Murat Can Tonta.

Country Road by Ashish Kumar

Country Road by Ashish Kumar

PDF

or solve online (using our beta test of Penpa-Edit tools; in default lineox mode: left-click+drag draws line, clicking one time in a cell marks a circle and a second time marks an X)

Theme: Brick Wall

Author/Opus: This is the 66th puzzle from our contributing puzzlemaster Ashish Kumar.

Rules: Draw a single, non-intersecting loop in the grid that enters and exits each bold region exactly once. If a number clue is given in a region, that number indicates the exact number of cells used by the loop in the region. Unused cells cannot be orthogonally adjacent across different regions.

Also, see this example:

Country Road by Serkan Yürekli

Difficulty: 2.5 stars

Time Standards (highlight to view): Grandmaster = 2:45, Master = 3:30, Expert = 7:00

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

Note: Follow this link for other Loop/Path puzzles. The puzzle styles featured this week are part of the book Loop Variety Collection by Ashish Kumar and Murat Can Tonta.

Maxi Loop by Murat Can Tonta

Maxi Loop by Murat Can Tonta

PDF

or solve online (using our beta test of Penpa-Edit tools; in default linex mode: left-click+drag draws line, right click marks X on edge)

Theme: Wbox

Author/Opus: This is the 195th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Draw a single, non-intersecting loop in the grid that passes through all white cells. If a number clue is given in a bold region, that number indicates the total count of cells passed through by the largest connected loop section(s) in the region.

Also, see this example:

Maxi Loop by Serkan Yürekli

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:30, Master = 3:00, Expert = 6:00

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

Note: Follow this link for other Loop/Path puzzles. The puzzle styles featured this week are part of the book Loop Variety Collection by Ashish Kumar and Murat Can Tonta.

Myopia by Ashish Kumar

Myopia by Ashish Kumar

PDF

or solve online (using our beta test of Penpa-Edit tools; in default edgex mode: left-click+drag draws line, right click marks X on edge)

Theme: Twin Tornadoes

Author/Opus: This is the 65th puzzle from our contributing puzzlemaster Ashish Kumar.

Rules: Draw a single, non-intersecting loop that only consists of horizontal and vertical segments between the dots. The arrow clues indicate all the directions (up, down, left, and right) where the nearest loop segments are located when looking from that square.

Also, see this example:

Myopia by Serkan Yürekli

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:20, Master = 2:15, Expert = 4:30

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

Note: Follow this link for other Loop/Path puzzles. The puzzle styles featured this week are part of the book Loop Variety Collection by Ashish Kumar and Murat Can Tonta.