Pentominous (Borders) by Grant Fikes

Pentominous (Borders) by Grant Fikes

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Theme: Logical

Author/Opus: This is the 249th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Variation of Pentominous rules. Divide this grid into 45 pentominoes each containing 5 cells. Pentominoes with the same shape (including rotations/reflections) cannot share an edge.
Some borders between pentominoes are already drawn.

Answer String: Enter the letter associated with the pentomino occupying each cell in the marked row from left to right, followed by a comma, followed by the marked column from top to bottom. Use CAPITAL LETTERS!

Time Standards (highlight to view): Grandmaster = 8:00, Master = 10:30, Expert = 21:00

Note: Follow this link for other Pentominous puzzles. If you are new to this puzzle type, here are our easiest Pentominous to get started on.

Pentominous by Murat Can Tonta

Pentominous by Murat Can Tonta

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Theme: 8 Symmetric Clues

Author/Opus: This is the 63rd puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Pentominous rules.

Answer String: Enter the letter associated with the pentomino occupying each cell in the marked row from left to right and then in the marked column from top to bottom, separating the groups with a comma. Use CAPITAL LETTERS!

Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:15, Expert = 4:30

Note: Follow this link for other Pentominous puzzles. If you are new to this puzzle type, here are our easiest Pentominous to get started on.

Pentominous by Carl Worth

Pentominous by Carl Worth

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Theme: Just One (in Roman Numerals)

Author/Opus: This is the 20th puzzle from our contributing puzzlemaster Carl Worth.

Rules: Standard Pentominous rules.

Answer String: Enter the letter associated with the pentomino occupying each cell in the marked rows from left to right and in the marked columns from top to bottom, separating the groups with a comma. Use CAPITAL LETTERS!

Time Standards (highlight to view): Grandmaster = 5:45, Master = 7:45, Expert = 15:30

Note: Follow this link for other Pentominous puzzles. If you are new to this puzzle type, here are our easiest Pentominous to get started on.

Best of 2016: Region Division Puzzles

Here are our best Region Division puzzles of 2016, selected from the 39 web posts in this category.

While we didn’t have as many guest contributions in 2016 as in earlier years with the site, there were still some stand-out puzzles from our guests including this magnificent Cave by Bryce Herdt with Fibonacci Spiral theme.

Cave by Bryce Herdt

Another Cave, this time a Diagonal variation from Prasanna Seshadri, also got top marks from many solvers.

Cave (Diagonal) by Prasanna Seshadri

Carl Worth demonstrated the quality that earned him a contributing puzzlemaster position this year with a tough Fillomino puzzle with a dominoes theme.

Fillomino by Carl Worth

The best Region Division puzzle this year though went to this combination of Pentominous and Star Battle by Grant Fikes that gave solvers a unique kind of logical challenge.

Pentominous (Star Battle) by Grant Fikes

Pentominous (Star Battle) by Grant Fikes

Pentominous (Star Battle) by Grant Fikes

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Theme: Logical

Author/Opus: This is the 219th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Combination of Pentominous and Star Battle. Place stars into some cells so that there are two stars in each row and column; no two stars can touch, even diagonally. Then divide the rest of the grid into 16 regions each containing 5 cells. Regions with the same shape (including rotations/reflections) cannot share an edge. A cell with a letter in it must be part of the pentomino shape normally associated with that letter; an inventory of pentominoes is given below the puzzle.

Answer String: Enter the letter associated with the pentomino occupying each cell or an asterisk (*) if it is a star in the marked rows from left to right, separating the groups with a comma. Use CAPITAL LETTERS! Example: IIIII*LFF*,TTT*PP*VVV

Time Standards (highlight to view): Grandmaster = 4:45, Master = 8:15, Expert = 16:30

Note: Follow this link for other Pentominous puzzles. If you are new to this puzzle type, here are our easiest Pentominous to get started on.

Pentominous by Grant Fikes

Pentominous by Grant Fikes

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PDF

Theme: Gotta Catch ‘Em All (all characters that can be spelled with pentomino letters)

Author/Opus: This is the 211th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Pentominous rules.

Answer String: Enter the letter associated with the pentomino occupying each cell in the marked rows from left to right, separating the groups with a comma. Use CAPITAL LETTERS!

Time Standards (highlight to view): Grandmaster = 11:30, Master = 14:30, Expert = 29:00

Note: Follow this link for other Pentominous puzzles. If you are new to this puzzle type, here are our easiest Pentominous to get started on.

Pentominous (Borders) by Grant Fikes

Pentominous (Borders) by Grant Fikes

PDF

Theme: Logical (originally on the US round for the 2016 WPF Puzzle Grand Prix)

Author/Opus: This is the 204th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Variation of Pentominous rules. Some borders between pentominoes are already drawn.

Answer String: Enter the letter associated with the pentomino occupying each cell in the marked rows from left to right, separating the groups with a comma. Use CAPITAL LETTERS!

Time Standards (highlight to view): Grandmaster = 2:30, Master = 4:00, Expert = 8:00

Note: Follow this link for other Pentominous puzzles. If you are new to this puzzle type, here are our easiest Pentominous to get started on.