All the Fillomino puzzles from last week can be found in this PDF.
This next week will feature a variety mix, all from Grant Fikes. Specifically, we will have:
Monday: Slitherlink
Tuesday: Cave
Wednesday: Round Trip
Thursday: Skyscrapers
Friday: Fillomino
Saturday: Cross the Streams (LITS)
The bonus puzzle for our high-level supporters will also be a Nurikabe by Grant Fikes.
All the puzzles from last week’s variety mix can be found in this PDF.
This next week will feature a set of classic puzzles and variations on Fillomino. Puzzles will be from Hans van Stippent, Grant Fikes, Prasanna Seshadri, and Robert Vollmert.
The bonus puzzle for our high-level supporters will also be a Fillomino by Grant Fikes.
All the puzzles from last week’s Letters and Numbers (Pentominous/Sudoku) collection can be found in this PDF.
This next week will feature a variety of styles from guest contributors. Specifically:
Monday: Nanro by Carl Worth
Tuesday: Round Trip by Hans van Stippent
Wednesday: Masyu by Murat Can Tonta
Thursday: Tapa by John Bulten
Friday: Cave by Murat Can Tonta
Saturday: Fractional Skyscrapers by Robert Vollmert
The bonus puzzle for our high-level supporters will also be a Pentominous by Grant Fikes.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Postage Stamps (Originally for 2014 Arlington Puzzle Festival — this was the playoff finals puzzle)
Author/Opus: This is the 210th 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 = 3:15, Master = 5:00, Expert = 10:00
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.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Tulip (Originally for 2014 Arlington Puzzle Festival)
Author/Opus: This is the 209th 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 = 4:00, Master = 6:30, Expert = 13:00
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.
or solve online (using our beta test of Penpa-Edit tools)
Theme: X’s and O’s (Originally for 2014 Arlington Puzzle Festival)
Author/Opus: This is the 208th 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 = 2:15, 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.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Seeing Double (Originally for 2014 Arlington Puzzle Festival)
Author/Opus: This is the 207th 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 9th column from top to bottom.
Time Standards (highlight to view): Grandmaster = 2:00, Master = 3:00, Expert = 6:00
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.
All the puzzles from last week’s Castle Wall collection can be found in this PDF.
We had 57 solvers for Dr. Sudoku’s 200th puzzle contest. Two random numbers were selected from 1-57 using random.org marking solvers 30 and 52 as the winners of a free puzzle book. Those lucky solvers are (30.) Projectyl and (52.) phlebowitsh.
For anyone who was stumped by the lack of rules for the TomTomTom, and didn’t catch on to the hint provided by the title, here are complete rules. The six 6×6 grids make up a Latin Cube where no digit repeats in any row or column within a grid, or within any cell in the same position across the grids (i.e., stack the grids on top of each other and no digit repeats within a position in that stack). While none of the starting grids have a unique solution without the Latin Cube constraint, with this constraint all five regular looking TomToms can now be uniquely solved. Use the remaining digits in each location to fill in the last grid. Assign number values to those cases keeping in mind operations when present and convert 1=A, 2=B, …, to read out the solution in left-to-right, top-to-bottom order.”
This next week will feature both letters and numbers. Specifically, a set of Pentominous puzzles by Grant Fikes and Sudoku puzzles by Thomas Snyder. The bonus puzzle for our high-level supporters will also be a Pentominous by Grant Fikes.
All the puzzles from last week’s LITS collection can be found in this PDF.
Entry into our 200th Puzzle Contest Spectacular is now closed and we will be determining the winners soon. Winners will be contacted by email and announced in this space next weekend.
This next week will be a set of Castle Wall puzzles, a style originally created by Palmer Mebane and where both Palmer and Prasanna have written good challenges. The bonus puzzle for our high-level supporters will also be a Castle Wall by Prasanna Seshadri.
or solve online (using our beta test of Penpa-Edit tools)
Theme: PAFCIO (This is a thank you puzzle to one of our major patrons)
Author/Opus: This is the 206th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard LITS rules.
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 = 3:00, Master = 6:30, Expert = 13:00
Solution: PDF
Note: Follow this link for other classic LITS. If you are new to this puzzle type, here are our easiest LITS to get started on.