Slitherlink by Takeya Saikachi

Slitherlink by Takeya Saikachi

PDF

or solve online (using our beta test of Penpa-Edit tools in edgex mode where left click+drag draws lines and right click marks X’s)

Theme: Find the Difference

Author/Opus: This is the 24th puzzle from our contributing puzzlemaster Takeya Saikachi.

Rules: Standard Slitherlink rules.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:00, Master = 2:15, Expert = 4:30

Solution: To be posted tomorrow on this post once live.

Note: Follow this link for classic Slitherlink and this link for Slitherlink variations. If you are new to this puzzle type, here are our easiest Slitherlink puzzles to get started on. More Slitherlink puzzles can be found in The Art of Puzzles, Slitherlink and Variations, and our beginner-friendly book Logic Puzzles 101.

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Yesterday’s Solution: “Tetrominoes” Fillomino by David Altizio: PDF and solving video.

Battleships (Pentomino) by Takeya Saikachi

Battleships (Pentomino) by Takeya Saikachi

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between two ship / shape placement modes and a shading mode. In battleship placement mode, right click gives sea, left click gives circle/square, left click and drag for rounded ships.)

Theme: Squares

Author/Opus: This is the 23rd puzzle from our newest contributing puzzlemaster Takeya Saikachi.

Rules: Standard Battleships rules. Use the indicated fleet. Ships can be rotated and reflected.

Difficulty: 4 stars

Time Standards (highlight to view): Grandmaster = 5:45, Master = 10:15, Expert = 20:30

Solution: To be posted tomorrow on this post once live.

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

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Yesterday’s Solution: “Antonyms” Tapa (Alternative) by Takeya Saikachi: PDF and solving video.

Tapa (Alternative) by Takeya Saikachi

Tapa (Alternative) by Takeya Saikachi

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the composite Yajilin mode where left click marks cells, right click marks dots in cells or X’s on edges, left click+drag draws lines.)

Theme: Antonyms

Author/Opus: This is the 22nd puzzle from our newest contributing puzzlemaster Takeya Saikachi.

Rules: Standard Tapa rules. Also, exactly one copy of each letter given in the grid must be shaded; other copies of that letter, if present, must be left unshaded.

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 3:30, Master = 8:15, Expert = 16:30

Solution: To be posted tomorrow on this post once live.

Note: Follow this link for classic Tapa and this link for Tapa variations. 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, in Tapa and Variations 1 and 2, and in our beginner-friendly books Intro to GMPuzzles and Starter Pack 2: Tapa, all by Serkan Yürekli.

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Yesterday’s Solution: “Triominoes” Kakuro (Consecutive Pairs) by Takeya Saikachi: PDF and solving video.

Kakuro (Consecutive Pairs) by Takeya Saikachi

Kakuro (Consecutive Pairs) by Takeya Saikachi

PDF

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

Theme: Triominoes

Author/Opus: This is the 21st puzzle from our newest contributing puzzlemaster Takeya Saikachi.

Rules: Standard Kakuro rules. Also, if a gray circle is given between two adjacent cells, then the two numbers in those cells must be consecutive. (Note: not all gray circles are given; adjacent cells without a circle may contain either consecutive numbers or nonconsecutive numbers.)

Difficulty: 3 stars

Time Standards (highlight to view): Grandmaster = 4:15, Master = 7:15, Expert = 14:30

Solution: To be posted tomorrow on this post once live.

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.

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Yesterday’s Solution: “River” Cave (Myopia) by Takeya Saikachi: PDF and solving video.

Cave (Myopia) by Takeya Saikachi

Cave (Myopia) by Takeya Saikachi

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the linex mode where left click+drag draws lines and right click marks X’s)

Theme: River

Author/Opus: This is the 20th puzzle from our newest contributing puzzlemaster Takeya Saikachi.

Rules: Standard Cave rules. Also, the arrow clues indicate all the directions (up, down, left, and right) where the nearest shaded cells are located when looking from that square. Arrow clues cannot be shaded.

Difficulty: 2.5 stars

Time Standards (highlight to view): Grandmaster = 3:15, Master = 4:15, Expert = 8:30

Solution: To be posted tomorrow on this post once live.

Note: Follow this link for classic Caves and this link for Cave variations. If you are new to this puzzle type, here are our easiest Cave Puzzles to get started on. More Cave puzzles can be found in Roger Barkan’s Colossal Cave Collection, in The Art of Puzzles, and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

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Yesterday’s Solution: “Geometric Shapes” Sudoku by Takeya Saikachi: PDF and solving video.

Sudoku by Takeya Saikachi

Sudoku by Takeya Saikachi

PDF

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

Theme: Geometric Shapes

Author/Opus: This is the 19th puzzle from our newest contributing puzzlemaster Takeya Saikachi.

Rules: Standard Sudoku rules.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:45, Master = 2:15, Expert = 4:30

Solution: To be posted tomorrow on this post once live.

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.

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Yesterday’s Solution: “Two Sides” Tapa-Like Loop by Takeya Saikachi: PDF and solving video.

Tapa-Like Loop by Takeya Saikachi

Today we are quite excited to welcome Takeya Saikachi, one of the founding authors of the Toketa series of puzzle books amongst other contributions, to the Grandmaster Puzzles team as a contributing puzzlemaster. Takeya will be the author of our upcoming Starter Pack 4: Slitherlink book, coming out in about a week.

Tapa-Like Loop by Takeya Saikachi

PDF

or solve online (using our beta test of Penpa-Edit tools in linex mode where left click+drag draws lines and right click marks X’s on edges)

Theme: Two Sides

Author/Opus: This is the 18th puzzle from our newest contributing puzzlemaster Takeya Saikachi.

Rules: Variation of Tapa: Form a single non-intersecting loop. Clues inside the grid represent the number of neighboring cells visited by the loop; if there is more than one number in a cell, each number should be represented with a separate loop segment. There is no 2×2 rule of Tapa in this puzzle.

See also this example:

Tapa-Like Loop Example by Serkan Yürekli

Difficulty: 1.5 stars

Time Standards (highlight to view): Grandmaster = 0:40, Master = 1:20, Expert = 2:40

Solution: To be posted tomorrow on this post once live.

Note: Follow this link for other Tapa-Like Loop puzzles. More Tapa-Like Loop puzzles can be found in the Tapa-Like Loop Collection by Prasanna Seshadri.

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Yesterday’s Solution: “Multiplication” Shape Sudoku by Salih Alan: PDF and solving video.