Rey's Puzzles

Difficulties are marked according to the Logic Masters Germany scale. These are just my best guesses, so please let me know if you have a different opinion!

Circular Whispers #

Published on October 22, 2023.

Difficulty: 2

Tags: Sudoku, Circle Counters, German Whispers, Odd/Even

Image of 'Circular Whispers' puzzle

CTC

Penpa

Wiring #

Published on July 3, 2023.

Difficulty: 2

Tags: Sudoku, German Whispers, Kropki

Image of 'Wiring' puzzle

CTC

Penpa

F-Puzzles

WXV #

Published on May 24, 2023.

Difficulty: 2

Tags: Sudoku, Renban, German Whispers, XV

This was a gift for my high school Macroeconomics teacher.

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CTC

F-Puzzles

Push #

Published on May 24, 2023.

Difficulty: 2

Tags: Sudoku, Killer Cages, Kropki

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F-Puzzles

Tepper #

Published on May 8, 2023.

Difficulty: 2

Tags: Sudoku, Renban, Arrows

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CTC

Penpa

F-Puzzles

Quadrants #

Published on April 22, 2023.

Difficulty: 2

Tags: Sudoku, Arrows, Quads

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CTC

F-Puzzles

Conjoined #

Published on April 4, 2023.

Difficulty: 2

Tags: Sudoku, Killer Cages

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CTC

Penpa

F-Puzzles

6x6 Skyscraper Thermos #

Published on March 22, 2023.

Difficulty: 2

Tags: Sudoku, Skyscrapers, Thermometers

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CTC

Penpa

Pointy #

Published on March 19, 2023.

Difficulty: 2

Tags: Sudoku, Arrows

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CTC

F-Puzzles

LMD

Wings #

Published on March 18, 2023.

Difficulty: 2

Tags: Sudoku, Killer Cages, Diagonal

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CTC

Penpa

F-Puzzles

LMD

Zoom #

Published on March 13, 2023.

Difficulty: 2

Tags: Sudoku, Renban, Kropki

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CTC

F-Puzzles

Cars #

Published on March 5, 2023.

Difficulty: 2

Tags: Sudoku, Killer Cages, Kropki

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CTC

F-Puzzles

LMD

Monster Cages #

Published on March 4, 2023.

Difficulty: 2

Tags: Sudoku, Chaos Construction, Monster Cages

This puzzle is a chaos construction. Cages indicate the product of each region sum contained in a cage. For instance, if a 4-cell cage contained 1,2 in one region and 3,4 in another region, its total would be (1+2)x(3+4)=80. Cages may be contained in one region, in which case, the total is just the sum of the cells. Digits may not repeat in a cage.

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CTC

Penpa

F-Puzzles

Intersections #

Published on February 27, 2023.

Difficulty: 2

Tags: Sudoku, X-Sums, Diagonal

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CTC

Penpa

F-Puzzles

Starry Sums #

Published on February 21, 2023.

Difficulty: 2

Tags: Sudoku, Diagonal, Star Battle

Shade a square in each row, column, and region such that each digit 1-9 is shaded once and no two shaded squares touch, not even diagonally. Digits outside the grid indicate the sum of the digits it sees before the shaded square.

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CTC

Penpa

F-Puzzles

LMD

El Corazón #

Published on February 8, 2023.

Difficulty: 2

Tags: Sudoku, Killer Cages, Thermometers

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CTC

Penpa

F-Puzzles

Stairs #

Published on February 6, 2023.

Difficulty: 2

Tags: Sudoku, Killer Cages, Diagonal

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CTC

Penpa

F-Puzzles

Highway #

Published on February 1, 2023.

Difficulty: 2

Tags: Sudoku, Killer Cages, Diagonal

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CTC

Penpa

F-Puzzles

LMD

Genome #

Published on January 31, 2023.

Difficulty: 2

Tags: Sudoku, German Whispers, Renban, Kropki

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CTC

Penpa

F-Puzzles

Kakuro Sudoku #

Published on January 11, 2023.

Difficulty: 2

Tags: Sudoku

Each number in a shaded cell is either the sum of the two digits below or to the right of it (possibly both).

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CTC

Penpa

F-Puzzles

Equations #

Published on January 7, 2023.

Difficulty: 2

Tags: Sudoku, Equations

Digits in cells separated by +, x, and = signs form valid arithmetic operations. (All arithmetic operations involve only one-digit numbers.) Classic sudoku rules apply.

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CTC

Penpa

F-Puzzles

Distant Neighbors #

Published on January 2, 2023.

Difficulty: 2

Tags: Sudoku, Dutch Neighbors

Every number must be adjacent to at least one number 4 away from it. For example, 4 must share a side with either a 8 or a 9 (possibly both).

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CTC

Penpa

F-Puzzles

That's What I Mean #

Published on December 28, 2022.

Difficulty: 2

Tags: Sudoku, Killer Cages, Averaging Cells

Numbers in a blue circle are the arithmetic mean of its orthogonal neighbors.

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CTC

F-Puzzles

LMD

5 #

Published on December 3, 2022.

Difficulty: 2

Tags: Sudoku, German Whispers, CTC Features

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CTC

Penpa

F-Puzzles

LMD