PDF

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

Theme: Up Two Something

Author/Opus: This is the 188th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Yajilin 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 = 0:40, Master = 1:00, Expert = 2:00

Solution: PDF

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.

All the puzzles from last week have been grouped in this PDF.

Next week is a variety week with the following mix of puzzles (highlight to view):
Monday: Yajilin by Thomas Snyder
Tuesday: Fillomino by Grant Fikes
Wednesday: Shape Sudoku by Serkan Yürekli
Thursday: Battleships by Thomas Snyder
Friday: Sum Skyscrapers by Grant Fikes
Saturday: Statue Park by Grant Fikes

The bonus puzzle for our high-level supporters will be a Tapa by Thomas Snyder.

PDF

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

Theme: Sudoku GP Round 7 (this puzzle continues a hidden theme present throughout Prasanna’s Sudoku Grand Prix set)

Author/Opus: This is the 41st puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Sudoku rules. Additionally, all cells having the same digit(s) more than once as orthogonal neighbors are shaded. (If a cell is not shaded, it cannot have any digits repeated as orthogonal neighbors). Or see this example image.

Answer String: Enter the 8th row from left to right, followed by a comma, followed by the 2nd column from top to bottom.

Time Standards (highlight to view): Grandmaster = 9:00, Master = 17:30, Expert = 35:00

Solution: PDF; a solution video is available here.

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

PDF

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

Theme: Two-Sided Problem

Author/Opus: This is the 187th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Even/Odd Sudoku rules (i.e., cells with a square contain an even digit; cells with a circle contain an odd digit).

Answer String: Enter the 4th row from left to right, followed by a comma, followed by the 2nd column from top to bottom.

Time Standards (highlight to view): Grandmaster = 3:45, Master = 8:00, Expert = 16:00

Solution: PDF

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

PDF

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

Theme: Clue Symmetry and Logic

Author/Opus: This is the 186th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

Answer String: Enter the 5th row from left to right, followed by a comma, followed by the 7th column from top to bottom.

Time Standards (highlight to view): Grandmaster = 3:00, Master = 4:15, Expert = 8:30

Solution: PDF

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.

PDF

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

Theme: Fortress

Author/Opus: This is the 4th puzzle from guest contributor Craig Kasper, who has recently started a new blog about puzzles.

Rules: Standard Consecutive Sudoku rules.

Answer String: Enter the 6th row from left to right, followed by a comma, followed by the 6th column from top to bottom.

Time Standards (highlight to view): Grandmaster = 3:15, Master = 4:45, Expert = 9:30

Solution: PDF

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

PDF

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

Theme: Four Arrows

Author/Opus: This is the 185th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

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

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

Solution: PDF

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.

PDF

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

Theme: Counting Puzzle?

Author/Opus: This is the 184th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Deficit Sudoku rules.

Answer String: Enter the 1st row from left to right, followed by a comma, followed by the 4th row from left to right.

Time Standards (highlight to view): Grandmaster = 1:20, Master = 2:00, Expert = 4:00

Solution: PDF

Note: Follow this link for other Deficit and Surplus Sudoku.

All the puzzles from last week have been grouped in this PDF.

While I’ve been featuring a lot more puzzle types this year, I often get requests to go back to having more Sudoku. While my focus for many months has been organizing the 2014 Sudoku Grand Prix, now that that work is mainly done it seemed a good time to revisit the style here. So the deficit of that style won’t continue for much longer; we’ll have some classic puzzles, but not on consecutive days as that might be too many classics in a row. Even odd folks like us can appreciate a good puzzle where nothing is repeated, neighbors.

The bonus puzzle for our high-level supporters will be a Skyscrapers by Prasanna Seshadri.

PDF

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

Theme: 1, 2, Star, ?

Author/Opus: This is the 6th puzzle from guest contributor Murat Can Tonta.

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 in the two grids, going in order from A to B to C to D and separating each entry with a comma.

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

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.