Archive for the ‘Loop/Path’ Category:

Castle Wall by Serkan Yürekli

Castle Wall by Serkan Yürekli

PDF

Theme: XO

Author/Opus: This is the 267th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Castle Wall 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 = 2:15, Master = 3:15, Expert = 6:30

Note: Follow this link for more Castle Wall puzzles. If you are new to this puzzle type, here are our easiest Castle Wall puzzles to get started on. More Castle Wall puzzles can be found in our beginner-friendly collection Intro to GMPuzzles as well as the larger collection Castle Wall, both by Serkan Yürekli.

Castle Wall (Masyu) by Ashish Kumar

Castle Wall by Ashish Kumar

PDF

Theme: Clue Symmetry and Logic

Author/Opus: This is the 18th puzzle from guest contributor Ashish Kumar.

Rules: Classic Castle Wall rules. Also, the loop must go straight through the cells with white circles, with a turn in at least one of the cells immediately before/after each white circle. The loop must make a turn in all the black circles, but must go straight in both cells immediately before/after each black circle.

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 = 2:00, Master = 2:45, Expert = 5:30

Note: Follow this link for more Castle Wall puzzles. If you are new to this puzzle type, here are our easiest Castle Wall puzzles to get started on. More Castle Wall puzzles can be found in our beginner-friendly collection Intro to GMPuzzles as well as the larger collection Castle Wall, both by Serkan Yürekli.

Castle Wall by İlay Zehra Şenay

Castle Wall by İlay Zehra Şenay

PDF

Theme: Only 1 Antisymmetry

Author/Opus: This is the 4th puzzle from guest contributor İlay Zehra Şenay.

Rules: Standard Castle Wall rules.

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

Time Standards (highlight to view): Grandmaster = 1:11, Master = 1:40, Expert = 3:20

Note: Follow this link for more Castle Wall puzzles. If you are new to this puzzle type, here are our easiest Castle Wall puzzles to get started on. More Castle Wall puzzles can be found in our beginner-friendly collection Intro to GMPuzzles as well as the larger collection Castle Wall, both by Serkan Yürekli.

Yajilin (Regional) by Prasanna Seshadri

Yajilin by Prasanna Seshadri

PDF

Theme: Big +, Small +

Author/Opus: This is the 176th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Variation of Yajilin. Blacken some white cells and then draw a single closed loop (without intersections or crossings) through all remaining white cells. Blackened cells cannot share an edge with each other. A number in a region indicates how many white cells must be blackened. Cells with number clues may be blackened.

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 = 3:15, Master = 4:30, Expert = 9:00

Note: Follow this link for other variations of Yajilin and this link for classic Yajilin. 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.

Yajilin (Strict Transparent) by Joseph Howard

Yajilin by Joseph Howard

PDF

Theme: Every Which Way but Up

Author/Opus: This is the 13th puzzle from guest contributor Joseph Howard.

Rules: Variation of Yajilin rules, including both diagonal arrows and transparent clues that the loop can pass through. Any clue cells that are part of the loop must be true and indicate the number of shaded cells in that direction. Any clue cell that is not part of the loop must be blackened, and the clue value MUST also be false (e.g., if a 2 left clue is blackened, there must be some number of cells other than 2 blackened to the left of the clue).

See also this example:

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 = 4:15, Master = 10:30, Expert = 21:00

Note: Follow this link for other classic Yajilin. 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, and in our beginner-friendly book Logic Puzzles 101.

Castle Wall by Bryce Herdt

Castle Wall by Bryce Herdt

PDF

Theme: Siege

Author/Opus: This is the 14th puzzle from guest contributor Bryce Herdt.

Rules: Standard Castle Wall rules.

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

Time Standards (highlight to view): Grandmaster = 4:00, Master = 7:30, Expert = 15:00

Note: Follow this link for more Castle Wall puzzles. If you are new to this puzzle type, here are our easiest Castle Wall puzzles to get started on. More Castle Wall puzzles can be found in our beginner-friendly collection Intro to GMPuzzles as well as the larger collection Castle Wall, both by Serkan Yürekli.

Slitherlink by Tom Collyer

Slitherlink by Tom Collyer

PDF

Theme: Clue Symmetry and Logic

Author/Opus: This is the 40th puzzle from our contributing puzzlemaster Tom Collyer.

Rules: Standard Slitherlink rules.

Answer String: Enter the length in cells of each of the internal loop segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma.

Time Standards (highlight to view): Grandmaster = 1:45, Master = 2:45, Expert = 5:30

Note: Follow this link for other 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.