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or solve online (using our beta test of Penpa-Edit tools)

Theme: T Up

Author/Opus: This is the 6th puzzle from guest contributor Salih Alan.

Rules: Standard Kakuro Rules.

Difficulty: 3.5 stars

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

Solution: PDF; a solution video is also available here.

Note: Follow this link for classic Kakuro and this link for Kakuro variations. More Kakuro puzzles can be found in Kakuro and Variations by Serkan Yürekli and in The Art of Puzzles 2.

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Twister

Author/Opus: This is the 64th puzzle from our contributing puzzlemaster Ashish Kumar.

Rules: Standard Kakuro Rules.

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 5:45, Master = 7:30, Expert = 15:00

Solution: PDF; a solution video is also available here.

Note: Follow this link for classic Kakuro and this link for Kakuro variations. More Kakuro puzzles can be found in Kakuro and Variations by Serkan Yürekli and in The Art of Puzzles 2.

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Sweet Sixteen

Author/Opus: This is the 205th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Kakuro Rules.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 2:00, Master = 2:30, Expert = 5:00

Solution: PDF; a solution video is also available here.

Note: Follow this link for classic Kakuro and this link for Kakuro variations. More Kakuro puzzles can be found in Kakuro and Variations by Serkan Yürekli and in The Art of Puzzles 2.

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Labyrinth

Author/Opus: This is the 324th puzzle from our managing editor Serkan Yürekli.

Rules: Standard Kakuro Rules.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 2:00, Master = 2:30, Expert = 5:00

Solution: PDF; a solution video is also available here.

Note: Follow this link for classic Kakuro and this link for Kakuro variations. More Kakuro puzzles can be found in Kakuro and Variations by Serkan Yürekli and in The Art of Puzzles 2.

PDF

or solve online (using our beta test of Penpa-Edit tools; note that the dotted circles are just for answer entry and are where the number should be placed in the 2×2 cell. An alternate option suggested in the comments below with centralized digit entry is here.)

Theme: Circular Reasoning

Author/Opus: This is the 342nd puzzle from our contributing puzzlemaster Grant Fikes.

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.

Difficulty: 1.5 stars

Time Standards (highlight to view): Grandmaster = 0:50, Master = 1:45, Expert = 3:30

Solution: PDF; a solution video is also available here.

Note: Follow this link for classic Kakuro and this link for Kakuro variations. More Kakuro puzzles can be found in Kakuro and Variations by Serkan Yürekli and in The Art of Puzzles 2.

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 third Sunday Stumper is a new Statue Park variation with a double set of pentominoes to place.

(view directly for a larger image)

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Theme: GMP

Author/Opus: This is the 23rd puzzle from our contributing puzzlemaster JinHoo Ahn.

Rules: Standard Statue Park rules. Also, there are some given cages with dashed lines. In each cage, exactly half of the total number of cells must be occupied by pentominoes.

See also this example:

Difficulty: 5 stars

Time Standards (highlight to view): Grandmaster = 30:00, Master = 40:00, Expert = 1:20:00

Solution: PDF; a solution video is also available here.

Note: Follow this link for other classic Statue Park and this link for Statue Park variations. If you are new to this puzzle type, here are our easiest Statue Parks to get started on. More Statue Park puzzles can be found in the ebook Statue Park by Murat Can Tonta.

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or solve online (using our beta test of Penpa-Edit tools)

Theme: Checkerboards

Author/Opus: This is the 194th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Statue Park rules. This puzzle uses a standard pentomino set.

Difficulty: 4 stars

Time Standards (highlight to view): Grandmaster = 7:30, Master = 11:30, Expert = 23:00

Solution: PDF; a solution video is also available here.

Note: Follow this link for other classic Statue Park and this link for Statue Park variations. If you are new to this puzzle type, here are our easiest Statue Parks to get started on. More Statue Park puzzles can be found in the ebook Statue Park by Murat Can Tonta.

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Pent-Up Rage

Author/Opus: This is the 77th puzzle from our contributing puzzlemaster John Bulten.

Rules: Place each of the twelve pentominoes into the grid once, with rotations and reflections allowed. No two pentominoes can overlap or be orthogonally adjacent, and all cells not occupied by the pentominoes must be traversed by a single, closed loop (connecting cells horizontally or vertically). The black circles indicate some cells that must be covered by pentominoes, white circles indicate spaces that may not be contained in pentominoes and must be part of the loop.

See also this example with five pentominoes:

Difficulty: 4 stars

Time Standards (highlight to view): Grandmaster = 4:30, Master = 10:00, Expert = 20:00

Solution: PDF; a solution video is also available here.

Note: Follow this link for other classic Statue Park and this link for Statue Park variations. If you are new to this puzzle type, here are our easiest Statue Parks to get started on. More Statue Park puzzles can be found in the ebook Statue Park by Murat Can Tonta.

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Love Stand

Author/Opus: This is the 63rd puzzle from our contributing puzzlemaster Ashish Kumar.

Rules: Standard Statue Park rules. This puzzle uses a standard pentomino set.

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 3:30, Master = 6:30, Expert = 13:00

Solution: PDF; a solution video is also available here.

Note: Follow this link for other classic Statue Park and this link for Statue Park variations. If you are new to this puzzle type, here are our easiest Statue Parks to get started on. More Statue Park puzzles can be found in the ebook Statue Park by Murat Can Tonta.

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Molecules

Author/Opus: This is the 22nd puzzle from our contributing puzzlemaster JinHoo Ahn.

Rules: Standard Statue Park rules. This puzzle uses a double tetromino set.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:20, Master = 2:15, Expert = 4:30

Solution: PDF; a solution video is also available here.

Note: Follow this link for other classic Statue Park and this link for Statue Park variations. If you are new to this puzzle type, here are our easiest Statue Parks to get started on. More Statue Park puzzles can be found in the ebook Statue Park by Murat Can Tonta.