Suduro http://www.suduro.com Welcome to suduro.com, the home of Suduro, a fun, elegant new variation on Sudoku, with the challenges of Sudoku and Kakuro puzzles combined. If you already know and enjoy Sudoku, these offer a challenging new dimension to your puzzling. Fill in the gray squares with numbers 1-9 so that the gray squares in each column and row add up to the sums clues in the top-edge and left-edge black squares. Similarly, the upper-left 3-by-3 grid of numbers shows the gray-squares sums for the corresponding 3-by-3 sub-grids. Fill in the white squares to complete a normal Sudoku puzzle, so every row, column, and 3-by-3 sub-grid has each number 1-9 exactly once. Thu, 05 Mar 2026 07:01:05 +0000 http://wordpress.org/?v=2.3 en Suduro for March 5, 2026: Challenging http://www.suduro.com/2026/03/05 http://www.suduro.com/2026/03/05#comments Thu, 05 Mar 2026 07:01:05 +0000 admin http://www.suduro.com/2026/03/05 Click for printable version Puzzle 8327

7

12

11

4

28

15

20

13

29

7

5

19

24

11

18

30

11

14

6

16

8

15

19

13

14

22

26

· Are you stumped? Here’s a more detailed Introduction to Suduro with a fuller explanation of the rules and solution strategies.

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· Still stumped? Here’s the Stage-1 answer (filling in just the gray squares).

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· Still stumped? Here’s the Complete answer.

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Want more? Here are some archived puzzles: Easy, Moderate, Challenging, Hard, Brutal, Yesterday’s Puzzle

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Want to email or blog a link to this specific puzzle? Here is the permalink.

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Publishers, book agents, newspaper editors, Dan Tow, the inventor of Suduro, has a book of Suduro puzzles ready for immediate publication. Here’s his email address, and his personal website.

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By Dan Tow, Copyright 2026, All Rights Reserved




]]> http://www.suduro.com/2026/03/05/feed Suduro for March 4, 2026: Moderate http://www.suduro.com/2026/03/04 http://www.suduro.com/2026/03/04#comments Wed, 04 Mar 2026 07:01:11 +0000 admin http://www.suduro.com/2026/03/04 Click for printable version Puzzle 8335

17

15

10

8

20

6

15

18

15

3

22

15

18

23

12

8

20

3

7

21

14

3

17

14

16

23

9

· Are you stumped? Here’s a more detailed Introduction to Suduro with a fuller explanation of the rules and solution strategies.

.

· Still stumped? Here’s the Stage-1 answer (filling in just the gray squares).

.

· Still stumped? Here’s the Complete answer.

.

Want more? Here are some archived puzzles: Easy, Moderate, Challenging, Hard, Brutal, Yesterday’s Puzzle

.

Want to email or blog a link to this specific puzzle? Here is the permalink.

.

Publishers, book agents, newspaper editors, Dan Tow, the inventor of Suduro, has a book of Suduro puzzles ready for immediate publication. Here’s his email address, and his personal website.

.

By Dan Tow, Copyright 2026, All Rights Reserved




]]> http://www.suduro.com/2026/03/04/feed Suduro for March 3, 2026: Moderate http://www.suduro.com/2026/03/03 http://www.suduro.com/2026/03/03#comments Tue, 03 Mar 2026 07:01:20 +0000 admin http://www.suduro.com/2026/03/03 Click for printable version Puzzle 8291

4

20

16

18

5

10

21

11

20

18

17

8

13

13

10

17

10

19

19

15

6

7

13

13

17

27

8

· Are you stumped? Here’s a more detailed Introduction to Suduro with a fuller explanation of the rules and solution strategies.

.

· Still stumped? Here’s the Stage-1 answer (filling in just the gray squares).

.

· Still stumped? Here’s the Complete answer.

.

Want more? Here are some archived puzzles: Easy, Moderate, Challenging, Hard, Brutal, Yesterday’s Puzzle

.

Want to email or blog a link to this specific puzzle? Here is the permalink.

.

Publishers, book agents, newspaper editors, Dan Tow, the inventor of Suduro, has a book of Suduro puzzles ready for immediate publication. Here’s his email address, and his personal website.

.

By Dan Tow, Copyright 2026, All Rights Reserved




]]> http://www.suduro.com/2026/03/03/feed Suduro for March 2, 2026: Easy http://www.suduro.com/2026/03/02 http://www.suduro.com/2026/03/02#comments Mon, 02 Mar 2026 07:01:08 +0000 admin http://www.suduro.com/2026/03/02 Click for printable version Puzzle 8321

16

12

12

7

3

6

15

13

13

5

17

16

6

9

13

10

10

11

21

10

9

7

6

3

22

10

9

· Are you stumped? Here’s a more detailed Introduction to Suduro with a fuller explanation of the rules and solution strategies.

.

· Still stumped? Here’s the Stage-1 answer (filling in just the gray squares).

.

· Still stumped? Here’s the Complete answer.

.

Want more? Here are some archived puzzles: Easy, Moderate, Challenging, Hard, Brutal, Yesterday’s Puzzle

.

Want to email or blog a link to this specific puzzle? Here is the permalink.

.

Publishers, book agents, newspaper editors, Dan Tow, the inventor of Suduro, has a book of Suduro puzzles ready for immediate publication. Here’s his email address, and his personal website.

.

By Dan Tow, Copyright 2026, All Rights Reserved




]]> http://www.suduro.com/2026/03/02/feed Suduro for March 1, 2026: Hard http://www.suduro.com/2026/03/01 http://www.suduro.com/2026/03/01#comments Sun, 01 Mar 2026 07:01:47 +0000 admin http://www.suduro.com/2026/03/01 Click for printable version Puzzle 8346

12

12

14

19

6

18

13

4

17

17

14

13

7

6

9

5

19

25

8

12

18

7

15

21

21

7

6

· Are you stumped? Here’s a more detailed Introduction to Suduro with a fuller explanation of the rules and solution strategies.

.

· Still stumped? Here’s the Stage-1 answer (filling in just the gray squares).

.

· Still stumped? Here’s the Complete answer.

.

To see a special hidden hint/comment about this puzzle, highlight starting here: Very subtle logic in the white squares eliminates the wrong solution in the gray squares.

Want more? Here are some archived puzzles: Easy, Moderate, Challenging, Hard, Brutal, Yesterday’s Puzzle

.

Want to email or blog a link to this specific puzzle? Here is the permalink.

.

Publishers, book agents, newspaper editors, Dan Tow, the inventor of Suduro, has a book of Suduro puzzles ready for immediate publication. Here’s his email address, and his personal website.

.

By Dan Tow, Copyright 2026, All Rights Reserved



]]> http://www.suduro.com/2026/03/01/feed Suduro for February 28, 2026: Hard http://www.suduro.com/2026/02/28 http://www.suduro.com/2026/02/28#comments Sat, 28 Feb 2026 07:01:37 +0000 admin http://www.suduro.com/2026/02/28 Click for printable version Puzzle 8290

12

18

15

19

8

6

24

11

23

17

27

11

18

14

5

10

17

17

6

20

19

11

9

13

24

11

23

· Are you stumped? Here’s a more detailed Introduction to Suduro with a fuller explanation of the rules and solution strategies.

.

· Still stumped? Here’s the Stage-1 answer (filling in just the gray squares).

.

· Still stumped? Here’s the Complete answer.

.

Want more? Here are some archived puzzles: Easy, Moderate, Challenging, Hard, Brutal, Yesterday’s Puzzle

.

Want to email or blog a link to this specific puzzle? Here is the permalink.

.

Publishers, book agents, newspaper editors, Dan Tow, the inventor of Suduro, has a book of Suduro puzzles ready for immediate publication. Here’s his email address, and his personal website.

.

By Dan Tow, Copyright 2026, All Rights Reserved




]]> http://www.suduro.com/2026/02/28/feed Suduro for February 27, 2026: Challenging http://www.suduro.com/2026/02/27 http://www.suduro.com/2026/02/27#comments Fri, 27 Feb 2026 07:01:33 +0000 admin http://www.suduro.com/2026/02/27 Click for printable version Puzzle 8305

22

7

17

14

3

20

14

8

13

11

24

15

6

7

5

14

26

10

20

13

13

7

7

23

5

12

18

· Are you stumped? Here’s a more detailed Introduction to Suduro with a fuller explanation of the rules and solution strategies.

.

· Still stumped? Here’s the Stage-1 answer (filling in just the gray squares).

.

· Still stumped? Here’s the Complete answer.

.

Want more? Here are some archived puzzles: Easy, Moderate, Challenging, Hard, Brutal, Yesterday’s Puzzle

.

Want to email or blog a link to this specific puzzle? Here is the permalink.

.

Publishers, book agents, newspaper editors, Dan Tow, the inventor of Suduro, has a book of Suduro puzzles ready for immediate publication. Here’s his email address, and his personal website.

.

By Dan Tow, Copyright 2026, All Rights Reserved




]]> http://www.suduro.com/2026/02/27/feed Suduro for February 26, 2026: Challenging http://www.suduro.com/2026/02/26 http://www.suduro.com/2026/02/26#comments Thu, 26 Feb 2026 07:01:30 +0000 admin http://www.suduro.com/2026/02/26 Click for printable version Puzzle 8326

5

17

28

10

6

15

5

19

13

7

5

8

16

10

16

16

23

17

11

9

30

19

3

9

12

14

11

· Are you stumped? Here’s a more detailed Introduction to Suduro with a fuller explanation of the rules and solution strategies.

.

· Still stumped? Here’s the Stage-1 answer (filling in just the gray squares).

.

· Still stumped? Here’s the Complete answer.

.

Want more? Here are some archived puzzles: Easy, Moderate, Challenging, Hard, Brutal, Yesterday’s Puzzle

.

Want to email or blog a link to this specific puzzle? Here is the permalink.

.

Publishers, book agents, newspaper editors, Dan Tow, the inventor of Suduro, has a book of Suduro puzzles ready for immediate publication. Here’s his email address, and his personal website.

.

By Dan Tow, Copyright 2026, All Rights Reserved




]]> http://www.suduro.com/2026/02/26/feed Suduro for February 25, 2026: Moderate http://www.suduro.com/2026/02/25 http://www.suduro.com/2026/02/25#comments Wed, 25 Feb 2026 07:01:20 +0000 admin http://www.suduro.com/2026/02/25 Click for printable version Puzzle 8331

3

17

13

12

17

6

13

26

11

13

7

8

14

19

27

4

23

3

7

17

9

14

13

8

16

18

16

· Are you stumped? Here’s a more detailed Introduction to Suduro with a fuller explanation of the rules and solution strategies.

.

· Still stumped? Here’s the Stage-1 answer (filling in just the gray squares).

.

· Still stumped? Here’s the Complete answer.

.

Want more? Here are some archived puzzles: Easy, Moderate, Challenging, Hard, Brutal, Yesterday’s Puzzle

.

Want to email or blog a link to this specific puzzle? Here is the permalink.

.

Publishers, book agents, newspaper editors, Dan Tow, the inventor of Suduro, has a book of Suduro puzzles ready for immediate publication. Here’s his email address, and his personal website.

.

By Dan Tow, Copyright 2026, All Rights Reserved




]]> http://www.suduro.com/2026/02/25/feed Suduro for February 24, 2026: Moderate http://www.suduro.com/2026/02/24 http://www.suduro.com/2026/02/24#comments Tue, 24 Feb 2026 07:01:17 +0000 admin http://www.suduro.com/2026/02/24 Click for printable version Puzzle 8289

20

4

18

10

9

26

12

13

5

11

17

14

9

8

9

13

30

6

18

13

11

6

24

15

6

13

11

· Are you stumped? Here’s a more detailed Introduction to Suduro with a fuller explanation of the rules and solution strategies.

.

· Still stumped? Here’s the Stage-1 answer (filling in just the gray squares).

.

· Still stumped? Here’s the Complete answer.

.

Want more? Here are some archived puzzles: Easy, Moderate, Challenging, Hard, Brutal, Yesterday’s Puzzle

.

Want to email or blog a link to this specific puzzle? Here is the permalink.

.

Publishers, book agents, newspaper editors, Dan Tow, the inventor of Suduro, has a book of Suduro puzzles ready for immediate publication. Here’s his email address, and his personal website.

.

By Dan Tow, Copyright 2026, All Rights Reserved




]]> http://www.suduro.com/2026/02/24/feed