Archive for the ‘Sudoku’ Category:

Killer Sudoku by Grant Fikes

Killer Sudoku by Grant Fikes

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Theme: Clue Symmetry and Logic

Author/Opus: This is the 231st puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Sudoku rules. Also, the sum of the digits in each cage must equal the value given in the upper-left corner of that cage. Digits cannot repeat inside a cage.

Answer String: Enter the 8th row from left to right, followed by a comma, followed by the 7th row from top to bottom.

Time Standards (highlight to view): Grandmaster = 3:45, Master = 5:30, Expert = 11:00

Note: Follow this link for other 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.

Arrow/Shape/Thermo-Sudoku

Sudoku by Prasanna Seshadri

PDF

Theme: Diamonds (for Chris Green)

Author/Opus: This is the 150th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Classic Sudoku Rules. Also, some arrow shapes are in the grid; the sum of the digits along the path of each arrow must equal the digit in the circled cell. Some thermometer shapes are in the grid; digits must be strictly increasing from the round bulb to each flat end. Finally, some diamond shapes are in the grid; the labeled diamonds below the grid must be placed in some order onto the shapes in the grid. The labeled diamonds can be rotated but cannot be reflected.

Answer String: Enter the 1st row from left to right, followed by a comma, followed by the 9th row from left to right.

Time Standards (highlight to view): Grandmaster = 5:15, Master = 10:45, Expert = 21:30

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.

Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

Theme: Two Gates (Originally for 2016 Arlington Puzzle Festival as playoff puzzle)

Author/Opus: This is the 260th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

Answer String: Enter the 1st row from left to right, followed by a comma, followed by the 9th row from left to right.

Time Standards (highlight to view): Grandmaster = 2:30, Master = 4:15, Expert = 8:30

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.

Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

Theme: Waves (Originally for 2016 Arlington Puzzle Festival)

Author/Opus: This is the 259th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

Answer String: Enter the 3rd row from left to right, followed by a comma, followed by the 6th row from left to right.

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

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.

Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

Theme: Off-Center (Originally for 2016 Arlington Puzzle Festival)

Author/Opus: This is the 258th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

Answer String: Enter the 6th row from left to right, followed by a comma, followed by the 9th row from left to right.

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

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.

Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

Theme: Ripples (Originally for 2016 Arlington Puzzle Festival)

Author/Opus: This is the 257th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

Answer String: Enter the 3rd row from left to right, followed by a comma, followed by the 9th row from left to right.

Time Standards (highlight to view): Grandmaster = 2:00, Master = 2:45, Expert = 5:30

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.

Consecutive Pairs Sudoku by Thomas Snyder

Consecutive Pairs Sudoku by Thomas Snyder

PDF

Theme: Eleven (for 11/11)

Author/Opus: This is the 256th puzzle from Thomas Snyder aka Dr. Sudoku.

Rules: Standard Sudoku rules. Also, if a gray circle is given between two adjacent cells, then the two numbers in those cells must be consecutive (i.e., differ by 1). Not all gray circles are given; adjacent cells without a circle may contain either consecutive numbers or nonconsecutive numbers.

Answer String: Enter the 3rd row from left to right, followed by a comma, followed by the 6th row from left to right.

Time Standards (highlight to view): Grandmaster = 6:15, Master = 8:00, Expert = 16:00

Note: Follow this link for other 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.