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Killer Sudoku by Grant Fikes
PDF Theme: Stuck Z Author/Opus: This is the 319th puzzle from our contributing puzzlemaster Grant Fikes. Rules: Standard Sudoku rules. Also, the sum of the digits in each cage must equal the value...
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Consecutive Pairs Sudoku by Gaurav Kumar Jain
PDF Theme: Gas Pipe Author/Opus: This is the 2nd puzzle from guest contributor Gaurav Kumar Jain. Rules: Standard Sudoku rules. Additionally, if a grey circle is given between two adjacent cells, then...
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Consecutive Pairs Sudoku by Rajesh Kumar
PDF Theme: Big Circle Author/Opus: This is the 7th puzzle from guest contributor Rajesh Kumar. Rules: Standard Sudoku rules. Additionally, if a grey circle is given between two adjacent cells, then...
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Consecutive Pairs Sudoku by Thomas Snyder
PDF Theme: Big X Author/Opus: This is the 361st puzzle from Thomas Snyder, aka Dr. Sudoku. Rules: Standard Sudoku rules. Additionally, if a grey circle is given between two adjacent cells, then the...
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Consecutive Pairs Sudoku by Akash Doulani
PDF Theme: Sand Timer Author/Opus: This is the 4th puzzle from guest contributor Akash Doulani. Rules: Standard Sudoku rules. Additionally, if a grey circle is given between two adjacent cells, then...
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Killer Sudoku by Grant Fikes
PDF Theme: Initial Impressions Author/Opus: This is the 331st puzzle from our contributing puzzlemaster Grant Fikes. Rules: Standard Sudoku rules. Also, the sum of the digits in each cage must equal...
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XV Sudoku by Ashish Kumar
PDF Theme: XV Author/Opus: This is the 56th puzzle from our contributing puzzlemaster Ashish Kumar. Rules: Standard Sudoku rules. Also, whenever the digits in two adjacent cells sum to exactly 10 or...
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E-book teaser: Killer Sudoku by Serkan Yürekli
Here is a (very hard) sample puzzle from the Killer Sudoku puzzle pack by Serkan Yürekli, which was just added to our e-store. PDF Theme: Time Killer Author/Opus: This puzzle comes from our managing...
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Wordoku by Grant Fikes
PDF Theme: RHYTHM HEAVEN Author/Opus: This is the 325th puzzle from our contributing puzzlemaster Grant Fikes. Rules: Variation of Sudoku rules. Instead of the digits 1-9, use the letters in “RYTM...
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Sunday Stumper: “Have a Cracking New Year!” by Thomas Snyder
This year, we are going 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...
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Sunday Stumper: Anti-Pi Sudoku by Serkan Yürekli
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...
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Wordoku by Grant Fikes
PDF Theme: RHYTHM HEAVEN Author/Opus: This is the 325th puzzle from our contributing puzzlemaster Grant Fikes. Rules: Variation of Sudoku rules. Instead of the digits 1-9, use the letters in “RYTM...
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Killer Su-do-ku by Michael Rios
PDF or solve online (using our beta test of Penpa-Edit tools) Theme: Plus and Minuses Author/Opus: This is the 1st puzzle from guest contributor Michael Rios. Rules: Standard Sudoku rules. Also, each...
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Skyscrapers Sudoku by John Bulten
PDF or solve online (using our beta test of Penpa-Edit tools) Theme: Tau Cross Author/Opus: This is the 79th puzzle from our contributing puzzlemaster John Bulten. Rules: Standard Sudoku rules. Also,...
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Frameless Sudoku by Prasanna Seshadri
PDF Theme: Empty Inside Author/Opus: This is the 179th puzzle from our contributing puzzlemaster Prasanna Seshadri. Rules: Standard Sudoku rules. Additionally, the numbers outside the grid indicate...
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Wordoku by Grant Fikes
PDF Theme: RHYTHM HEAVEN Author/Opus: This is the 325th puzzle from our contributing puzzlemaster Grant Fikes. Rules: Variation of Sudoku rules. Instead of the digits 1-9, use the letters in “RYTM...
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Arrow/Killer/Kropki/Thermo-Sudoku by Michael Rios
PDF or solve online (using our beta test of Penpa-Edit tools) Theme: Square Knots Author/Opus: This is the 2nd puzzle from guest contributor Michael Rios. Rules: Standard Sudoku rules. Also, some...
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Anti-Knight Sudoku by Murat Can Tonta
PDF or solve online (using our beta test of Penpa-Edit tools) Author/Opus: This is the 212th puzzle from our contributing puzzlemaster Murat Can Tonta. Rules: Standard Sudoku rules. Also, numbers...
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Sunday Stumper: XV Sudoku by Murat Can Tonta
This year, we started posting 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...
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Sudoku (Hex) by Prasanna Seshadri
(view directly for a larger image) PDF or solve online (using our beta test of Penpa-Edit tools) Theme: Even/Odd Trios Author/Opus: This is the 235th puzzle from our contributing puzzlemaster Prasanna...
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