Archive for the ‘Shading’ Category:

SLICY by Thomas Snyder

SLICY by Thomas Snyder

PDF

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

Theme: JH (for Jamie Hargrove)

Author/Opus: This is the 263rd puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Variation of LITS. Shade exactly four cells in each outlined region to form an S, L, I, C, or Y tetrahex. When all regions have been shaded, the following conditions must be true:
1) All shaded cells will be connected through a network of adjacent shaded cells;
2) No three shaded cells will share a common vertex;
3) When two tetrahexes share an edge in adjacent regions, they must not be the same type (S, L, I, C, or Y), regardless of potential rotations or reflections.

Answer String: Enter the length in cells of each of the shaded segments from lower left to upper right for the marked rows. Separate each row’s entry from the next with a comma.

Time Standards (highlight to view): Grandmaster = 4:45, Master = 8:00, Expert = 16:00

Solution: PDF

Note: Follow this link for more variations of LITS and this link for classic LITS. If you are new to this puzzle type, here are our easiest LITS to get started on. More LITS puzzles can be found in LOTS O’ LITS by Grant Fikes and Prasanna Seshadri.

Tapa (Borders) by Murat Can Tonta

Tapa (Borders) by Murat Can Tonta

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: Cluelessly Wandering? (for Veep)

Author/Opus: This is the 60th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Tapa rules. Also, if two cells are separated by a thick border, this means that exactly one of those cells is shaded and the other is unshaded.

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

Time Standards (highlight to view): Grandmaster = 2:15, Master = 3:30, Expert = 7:00

Solution: PDF

Note: Follow this link for other Tapa variations and this link for classic Tapa. 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 and in Tapa and Variations, both by Serkan Yürekli.

Tapa (Islands) by Murat Can Tonta

Tapa (Islands) by Murat Can Tonta

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: Clue Symmetry and Logic

Author/Opus: This is the 58th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Tapa rules. Also, similar to Nurikabe, each clue cell is part of an island of horizontally and vertically connected white cells. Islands are allowed to touch diagonally. Islands may contain at most one clue cell, and the area of the island must be one of the numbers in the clue (as an example, if a clue is 15, then the island containing that clue must be either 1 cell or 5 cells large).

See also this example:

Tapa (Islands) by Serkan Yürekli

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

Time Standards (highlight to view): Grandmaster = 5:00, Master = 13:15, Expert = 26:30

Solution: PDF

Note: Follow this link for other Tapa variations and this link for classic Tapa. 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 and in Tapa and Variations, both by Serkan Yürekli.

Tapa (Islands) by Prasanna Seshadri

Tapa (Islands) by Prasanna Seshadri

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: Clue Symmetry and Logic

Author/Opus: This is the 147th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Tapa rules. Also, similar to Nurikabe, each clue cell is part of an island of horizontally and vertically connected white cells. Islands are allowed to touch diagonally. Islands may contain at most one clue cell, and the area of the island must be one of the numbers in the clue (as an example, if a clue is 15, then the island containing that clue must be either 1 cell or 5 cells large).

See also this example:

Tapa (Islands) by Serkan Yürekli

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

Time Standards (highlight to view): Grandmaster = 4:45, Master = 10:45, Expert = 21:30

Solution: PDF

Note: Follow this link for other Tapa variations and this link for classic Tapa. 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 and in Tapa and Variations, both by Serkan Yürekli.

Tapa (Islands) by Murat Can Tonta

Tapa (Islands) by Murat Can Tonta

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: Clue Symmetry and Logic

Author/Opus: This is the 56th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Tapa rules. Also, similar to Nurikabe, each clue cell is part of an island of horizontally and vertically connected white cells. Islands are allowed to touch diagonally. Islands may contain at most one clue cell, and the area of the island must be one of the numbers in the clue (as an example, if a clue is 15, then the island containing that clue must be either 1 cell or 5 cells large).

See also this example:

Tapa (Islands) by Serkan Yürekli

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

Time Standards (highlight to view): Grandmaster = 3:15, Master = 8:45, Expert = 17:30

Solution: PDF

Note: Follow this link for other Tapa variations and this link for classic Tapa. 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 and in Tapa and Variations, both by Serkan Yürekli.

Pata by Serkan Yürekli

Pata by Serkan Yürekli

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: Just One

Author/Opus: This is the 145th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Variation of Tapa rules. The clue numbers refer to the groups of unshaded segments around that cell. Cells with numbers count as unshaded cells for adjacent clues. All other rules for the shaded Tapa are the same as usual.

Or see here:

Pata by Serkan Yürekli

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

Time Standards (highlight to view): Grandmaster = 4:15, Master = 6:45, Expert = 13:30

Solution: PDF; a solution video is available here.

Note: Follow this link for other Tapa variations and this link for classic Tapa. 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 and in Tapa and Variations, both by Serkan Yürekli.

Cross the Streams by Serkan Yürekli

Cross The Streams by Serkan Yürekli

PDF

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

Theme: Just One

Author/Opus: This is the 144th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Cross the Streams rules.

Answer String: Enter the length in cells of each of the black segments from top to bottom for the marked columns, going in order from A to B to C to D and separating each entry with a comma.

Time Standards (highlight to view): Grandmaster = 3:30, Master = 6:15, Expert = 12:30.

Solution: PDF

Note: Follow this link for other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on.

Nanro by Grant Fikes

Nanro by Grant Fikes

PDF

or solve online (using our beta test of Penpa-Edit tools; use the tab key to alternate between shading and number entry modes)

Theme: Just One

Author/Opus: This is the 227th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Nanro rules.

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

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

Solution: PDF

Note: Click here for other Nanro puzzles. If you are new to this puzzle type, please first try out the example on the Rules and Info page as well as this easy Nanro post.

Tapa (Borders) by Murat Can Tonta

Tapa (Borders) by Murat Can Tonta

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: Egocentric (for Chris Green)

Author/Opus: This is the 54th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Tapa rules. Also, if two cells are separated by a thick border, this means that exactly one of those cells is shaded and the other is unshaded.

Answer String: Enter the length in cells of each of the shaded segments from left to right for the marked rows, starting at the top. 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

Solution: PDF

Note: Follow this link for other Tapa variations and this link for classic Tapa. 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 and in Tapa and Variations, both by Serkan Yürekli.

Yajisan Kazusan by Murat Can Tonta

Yajisan Kazusan by Murat Can Tonta

PDF

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

Theme: No Obvious Lies (for Jamie Hargrove)

Author/Opus: This is the 53rd puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Shade some cells black so that all unshaded number and arrow clues indicate the exact count of shaded cells in the given direction. Shaded cells cannot share an edge, and all white cells must remain connected as part of a single contiguous group. It is allowed to shade over some of the numbered cells; a shaded over clue may or may not be true.

Also, see this example:

Yajisan Kazusan by Thomas Snyder

Answer String: For each row from top to bottom, enter the number of shaded cells as a single string. For the example, the answer is “20212”.

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

Solution: PDF

Note: Follow this link for other less common Shading puzzles.