Fillomino (Primes) by Carl Worth

Fillomino by Carl Worth

PDF

Theme: Primes (for Daniel Cohen)

Author/Opus: This is the 26th puzzle from our contributing puzzlemaster Carl Worth.

Rules: Standard Fillomino rules, except that the size of all regions must be a prime number (2, 3, 5, 7, …).

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

Time Standards (highlight to view): Grandmaster = 4:15, Master = 8:00, Expert = 16:00

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 and in Fill o’ Fillomino by Grant Fikes.

Tapa (Borders) by Palmer Mebane

Tapa (Borders) by Palmer Mebane

PDF

Theme: Antisymmetric Borders (for Veep)

Author/Opus: This is the 38th puzzle from our contributing puzzlemaster Palmer Mebane.

Rules: Standard Tapa rules. Also, if two cells are separated by a thick border, this means that exactly one of those cells is shaded and the other is unshaded. (Cells missing a border that appear as larger shapes are entirely shaded or entirely unshaded. The count of shaded cells is always based on 1×1 squares, meaning if a “large” cell with missing borders occupies multiple 1×1 squares around a clue it would contribute 2 or more cells if shaded for that clue.)

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 = 5:45, Expert = 11:30

Note: Follow this link for other Tapa variations and this link for classic Tapa. If you are new to this puzzle type, here are our easiest Tapa puzzles to get started on. More Tapa puzzles can be found in The Art of Puzzles and in Tapa and Variations, both by Serkan Yürekli.

NL Y CN N CT BYT HM SS NY DR

This is a puzzle-hunt style puzzle, prepared for an evening event at the World Puzzle Championship. There are no instructions; finding out what to do is part of the puzzle. Some UK cultural knowledge may be required.

NL Y CN N CT PDF

Author/Opus: This is the 289th puzzle from Thomas Snyder, aka Dr. Sudoku.

Answer String: Enter the final answer of the puzzle in ALL CAPITAL LETTERS.

Border Patrol by Thomas Snyder

This is a puzzle-hunt style puzzle, prepared for an evening event at the World Puzzle Championship. There are no instructions; finding out what to do is part of the puzzle. Some US cultural knowledge may be required.

Border Patrol PDF

Author/Opus: This is the 288th puzzle from Thomas Snyder, aka Dr. Sudoku.

Answer String: Enter the final answer of the puzzle, a single word, in ALL CAPITAL LETTERS.

Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

Theme: Diagonals (Playoff puzzle for the 2017 Arlington Puzzle Festival)

Author/Opus: This is the 287th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

No answer string (just click “solve”).

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

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: Big X (Originally for the 2017 Arlington Puzzle Festival)

Author/Opus: This is the 286th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

No answer string (just click “solve”).

Time Standards (highlight to view): Grandmaster = 2:45, Master = 5:00, Expert = 10:00

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: VA is for Sudoku Lovers (Originally for the 2017 Arlington Puzzle Festival)

Author/Opus: This is the 285th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

No answer string (just click “solve”).

Time Standards (highlight to view): Grandmaster = 2:15, Master = 4:00, Expert = 8:00

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.