Archive for the ‘Number Placement’ Category:

Math Path by JinHoo Ahn

This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

Math Path by JinHoo Ahn

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a number entry mode, a number candidates mode, and a path drawing mode.)

Theme: Tiny Watch

Author/Opus: This is the 131st puzzle from our contributing puzzlemaster JinHoo Ahn.

Rules: Write a number from 1 to N (N is given for each puzzle) into each cell so that every number appears in the grid once. There must be a path using just adjacent cells to travel between consecutive numbers from 1 to N. Also, the number in the upper-left corner of each bold cage indicates the value of a mathematical operation (addition, subtraction, multiplication, division) applied successively to all numbers in the cage, starting with the largest number for subtraction and division (e.g. 1,2,4 with subtraction is a 1- clue as 4-2-1 = 1). The operation may or may not be given in the cage, but at least one of the four operations must apply.

See also this example:

Math Path example by Thomas Snyder

Difficulty: 1.5 stars

Time Standards (highlight to view): Grandmaster = 1:15, Master = 1:30, Expert = 3:00

Solution: PDF and solving animation.

Note: Follow this link for other Math Path puzzles and this link for other Number Placement variations.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Week 12 Discussion post on the GMPuzzles Discord.

TomTom (Isometric) by Serkan Yürekli

This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

TomTom (Isometric) by Serkan Yürekli

PDF

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

Theme: Faces

Author/Opus: This is the 504th puzzle from our managing editor Serkan Yürekli.

Rules: Standard TomTom rules, using the integers 1-8. The “rows” in this puzzle pass through opposite parallel sides of each quadrilateral; in other words, the rows bend across the surface of the apparent cube to travel in a “straight” line.

Difficulty: 1.5 stars

Time Standards (highlight to view): Grandmaster = 1:20, Master = 1:45, Expert = 3:30

Solution: PDF and solving animation.

Note: Follow this link for other TomTom. If you are new to this puzzle type, here are our easiest TomTom to get started on. More TomTom puzzles can be found in these books in our e-store.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Week 11 Discussion post on the GMPuzzles Discord.

TomTom (Different Number Set) by JinHoo Ahn

This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

TomTom (Different Number Set) by JinHoo Ahn

PDF

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

Theme: Space Oddity

Author/Opus: This is the 129th puzzle from our contributing puzzlemaster JinHoo Ahn.

Rules: Standard TomTom rules, using the indicated set of numbers {1,3,5,7,9}.

Difficulty: 1 star

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

Solution: PDF and solving animation.

Note: Follow this link for classic TomTom and this link for TomTom variations. If you are new to this puzzle type, here are our easiest TomTom to get started on. More TomTom puzzles can be found in these books in our e-store.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Week 11 Discussion post on the GMPuzzles Discord.

TomTom by Takeya Saikachi

This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

TomTom by Takeya Saikachi

PDF

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

Theme: Mount Everest

Author/Opus: This is the 54th puzzle from our contributing puzzlemaster Takeya Saikachi.

Rules: Standard TomTom rules, using the integers 1-5.

Difficulty: 2 stars

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

Solution: PDF and solving animation.

Note: Follow this link for classic TomTom and this link for TomTom variations. If you are new to this puzzle type, here are our easiest TomTom to get started on. More TomTom puzzles can be found in these books in our e-store.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Week 11 Discussion post on the GMPuzzles Discord.

TomTom by Grant Fikes

This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

TomTom by Grant Fikes

PDF

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

Theme: Undercover Operations

Author/Opus: This is the 502nd puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard TomTom rules, using the integers 1-6.

Difficulty: 1.5 stars

Time Standards (highlight to view): Grandmaster = 1:15, Master = 1:45, Expert = 3:30

Solution: PDF and solving animation.

Note: Follow this link for classic TomTom and this link for TomTom variations. If you are new to this puzzle type, here are our easiest TomTom to get started on. More TomTom puzzles can be found in these books in our e-store.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Week 11 Discussion post on the GMPuzzles Discord.

TomTom by Grant Fikes

This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

TomTom by Grant Fikes

PDF

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

Theme: Cheaper by the Dozen

Author/Opus: This is the 501st puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard TomTom rules, using the integers 1-5.

Difficulty: 1.5 stars

Time Standards (highlight to view): Grandmaster = 1:15, Master = 1:45, Expert = 3:30

Solution: PDF and solving animation.

Note: Follow this link for classic TomTom and this link for TomTom variations. If you are new to this puzzle type, here are our easiest TomTom to get started on. More TomTom puzzles can be found in these books in our e-store.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Week 11 Discussion post on the GMPuzzles Discord.

TomTom by Serkan Yürekli

This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

TomTom by Serkan Yürekli

PDF

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

Theme: Symmetrical Pairs

Author/Opus: This is the 503rd puzzle from our managing editor Serkan Yürekli.

Rules: Standard TomTom rules, using the integers 1-5.

Difficulty: 1.5 stars

Time Standards (highlight to view): Grandmaster = 1:00, Master = 1:30, Expert = 3:00

Solution: PDF and solving animation.

Note: Follow this link for classic TomTom and this link for TomTom variations. If you are new to this puzzle type, here are our easiest TomTom to get started on. More TomTom puzzles can be found in these books in our e-store.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Week 11 Discussion post on the GMPuzzles Discord.

Kakuro (Gapped) by Prasanna Seshadri

This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

Kakuro (Gapped) by Prasanna Seshadri

PDF

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

Theme: All Evens

Author/Opus: This is the 311st puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Kakuro Rules. Also, some cells may remain empty but empty cells cannot share an edge with other empty cells.

Difficulty: 2 stars

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

Solution: PDF and solving animation.

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

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Week 6 Discussion post on the GMPuzzles Discord.

Japanese Sums by Thomas Snyder

This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

Japanese Sums by Thomas Snyder

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to shift between number entry and shading modes.)

Theme: Two and One

Author/Opus: This is the 512nd puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Place the numbers in the indicated range (1-6 in the puzzle, 1-5 in the example) in some of the cells so that no number is repeated in any row or column. Numbers on the outside of the grid indicate the sums of adjacent number groups in that row or column, in order. Each sum is separated by at least one unused cell. A ? can represent any sum of 1 or larger.

Japanese Sums Example by Serkan Yürekli

Difficulty: 1.5 stars

Time Standards (highlight to view): Grandmaster = 1:15, Master = 1:30, Expert = 3:00

Solution: PDF and solving animation.

Note: Follow this link for other Japanese Sums puzzles.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Week 6 Discussion post on the GMPuzzles Discord.

Easy as Japanese Sums by JinHoo Ahn

This is a free “warm-up” puzzle; Season 4 subscribers will see today’s main puzzle in the same style posted at 9:05 AM PT.

Easy as Japanese Sums by JinHoo Ahn

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to shift between number entry and shading modes.)

Theme: Triangular Numbers

Author/Opus: This is the 127th puzzle from our contributing puzzlemaster JinHoo Ahn.

Rules: Fill some cells with numbers 1-4 so that each row and column contains each number from 1 to 4 exactly once as well as one empty cell. Numbers outside of the grid indicate the sum of all numbers in the first connected group in that direction as in a Japanese Sums puzzle.

See also this example with the numbesr 1 to 4 and two empty cells:

Easy as Japanese Sums Example

Difficulty: 1 star

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

Solution: PDF and solving animation.

Note: Follow this link for other Japanese Sums puzzles. Also, visit this page to purchase all of the puzzles from the 30th World Puzzle Championship including some Easy as Japanese Sums.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our Week 6 Discussion post on the GMPuzzles Discord.