Thermo-Sudoku by Ashish Kumar

Thermo-Sudoku by Ashish Kumar

PDF

Theme: Clueless

Author/Opus: This is the 6th puzzle from guest contributor Ashish Kumar.

Rules: Standard Thermo-Sudoku rules.

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

Time Standards (highlight to view): Grandmaster = 7:00, Master = 13:30, Expert = 27:00

Note: Follow this link for more Thermo-Sudoku puzzles. If you are new to this puzzle type, here are our easiest Thermo-Sudoku to get started on.

Sudoku by Rajesh Kumar

Sudoku by Rajesh Kumar

PDF

Theme: Arrows

Author/Opus: This is the 3rd puzzle from guest contributor Rajesh Kumar.

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 = 1:20, Master = 2:00, Expert = 4:00

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. More classic Sudoku puzzles can be found in The Art of Sudoku and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Star Battle by William Hu

Star Battle by William Hu

PDF

Theme: Brackets

Author/Opus: This is the 4th puzzle from guest contributor William Hu.

Rules: Standard Star Battle rules. Two stars per row, column, and region.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a star appears. Enter these numbers as a single string with no separators.

Time Standards (highlight to view): Grandmaster = 3:15, Master = 7:00, Expert = 14:00

Note: Follow this link for other classic Star Battles. If you are new to this puzzle type, here are our easiest Star Battles to get started on. More Star Battle puzzles can be found in The Art of Puzzles and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Double Kakuro by İlay Zehra Şenay

Kakuro by İlay Zehra Şenay

PDF

Theme: 4×4

Author/Opus: This is the 3rd puzzle from guest contributor İlay Zehra Şenay.

Rules: Variation of Kakuro. The gray (2×2) cells are to be filled by a single digit which sits in multiple rows and columns. No digits can repeat within an entry, regardless of if it is in a small or large cell.

Answer String: Enter the values in each white/gray cell in the marked row from left to right and then the marked column from top to bottom, separating the groups with a comma.

Time Standards (highlight to view): Grandmaster = 4:15, Master = 6:15, Expert = 12:30

Note: Follow this link for other Kakuro puzzles. More Kakuro puzzles can be found in Kakuro and Variations by Serkan Yürekli. Kakuro will also eventually be featured in The Art of Puzzles 2.

Fillomino by Fatih Kamer Anda

Fillomino by Fatih Kamer Anda

PDF

Theme: 23

Author/Opus: This is the 2nd puzzle from guest contributor Fatih Kamer Anda.

Rules: Standard Fillomino rules.

Answer String: For each cell in the marked rows/columns, enter the area of the polyomino it belongs to. Enter just the last digit for any two-digit number. Start with the 4th row, followed by a comma, followed by the 8th row.

Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:00, Expert = 4:00

Note: Follow this link for other classic Fillomino and this link for more variations on Fillomino puzzles. If you are new to this puzzle type, here are our easiest Fillomino puzzles to get started on. More Fillomino puzzles can be found in The Art of Puzzles, in Fill o’ Fillomino and Fill o’ Fillomino 2 by Grant Fikes, and in our beginner-friendly book Logic Puzzles 101.

Thermo-Sudoku by Kishore Kumar Sridharan

Thermo-Sudoku by Kishore Kumar Sridharan

PDF

Theme: Sun

Author/Opus: This is the 2nd puzzle from guest contributor Kishore Kumar Sridharan.

Rules: Standard Thermo-Sudoku rules.

Answer String: Enter the 1st column from top to bottom, followed by a comma, followed by the 4th column from top to bottom.

Time Standards (highlight to view): Grandmaster = 5:00, Master = 7:30, Expert = 15:00

Note: Follow this link for more Thermo-Sudoku puzzles. If you are new to this puzzle type, here are our easiest Thermo-Sudoku to get started on.

Nanro (Signpost) by Fidel Zapico

Nanro by Fidel Zapico

PDF

Theme: Clue Symmetry and Logic

Author/Opus: This is the 4th puzzle from guest contributor Fidel Zapico.

Rules: Variation of Nanro.

Label some cells with numbers to form a single connected group of labeled cells. No 2×2 group of cells may be fully labeled. Each number must be equal to the total count of labeled cells in that bold region, and all bold regions contain at least one labeled cell. The given numbers indicate how many cells are labeled in that region (but not necessarily which cells are labeled). When two numbers are orthogonally adjacent across a region boundary, the numbers must be different.

Also see this example:

Nanro (Signpost) Example by Thomas Snyder

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 = 1:40, Master = 2:10, Expert = 4:20

Note: Follow this link for Nanro puzzles on this website and this link for variations on Nanro puzzles. If you are new to this puzzle type, here are our easiest Nanro Puzzles to get started on. More Nanro puzzles can be found in A Number o’ Nanro by Prasanna Seshadri.