Intermediate Sudoku by KrazyDad, Volume 1, Book 21
Sudoku #1
1 8 2 4 5
5 9 7 2 3 8 4
8 4 7 3 9
© 2013 KrazyDad.com
Fill in the blank squares so that each row, each column and each 3-by-3 block contain all of the digits 1 thru 9. If you use logic you can solve the puzzle without guesswork. Need a little help? The hints page shows a logical order to solve the puzzle. Use it to identify the next square you should solve. Or use the answers page if you really get stuck.
Macbeth: If we should failLady Macbeth: We fail? But screw your courage to the sticking place, And we'll not fail. -- Shakespeare
2 3 1 6 9 5 1
Intermediate Sudoku by KrazyDad, Volume 1, Book 21
Sudoku #2 3
7 5 8 6
4 2 5 9
2 5
3
6
8
3 4 1
3
2 © 2013 KrazyDad.com
Fill in the blank squares so that each row, each column and each 3-by-3 block contain all of the digits 1 thru 9. If you use logic you can solve the puzzle without guesswork. Need a little help? The hints page shows a logical order to solve the puzzle. Use it to identify the next square you should solve. Or use the answers page if you really get stuck.
A man who is always forgetting his best intentions may be said to be a thorough fare of good resolutions. -- Mrs. Jameson
1 8 9 4
9
Intermediate Sudoku by KrazyDad, Volume 1, Book 21
Sudoku #3 7 6
1 3
9 2 3
7 6 4
9 6 8 3
4 6
5
8 2 1 © 2013 KrazyDad.com
Fill in the blank squares so that each row, each column and each 3-by-3 block contain all of the digits 1 thru 9. If you use logic you can solve the puzzle without guesswork. Need a little help? The hints page shows a logical order to solve the puzzle. Use it to identify the next square you should solve. Or use the answers page if you really get stuck.
"Artists don't make objects. Artists make mythologies." -- Anish Kapoor
4
1 5 7
Intermediate Sudoku by KrazyDad, Volume 1, Book 21
Sudoku #4
4
1 8 6 5 2 6
9 4 2
4 3
9
2 4 7 6
1 2 © 2013 KrazyDad.com
Fill in the blank squares so that each row, each column and each 3-by-3 block contain all of the digits 1 thru 9. If you use logic you can solve the puzzle without guesswork. Need a little help? The hints page shows a logical order to solve the puzzle. Use it to identify the next square you should solve. Or use the answers page if you really get stuck.
Thought and theory must precede all salutary action; yet action is nobler in itself than either thought or theory. -- William Wordsworth
7 9
5 6 3
Intermediate Sudoku by KrazyDad, Volume 1, Book 21
Sudoku #5 1
1 9 7 4 5 3 2 7 1 2 7 6 4 6 5 2 5 1 4 8 © 2013 KrazyDad.com
Fill in the blank squares so that each row, each column and each 3-by-3 block contain all of the digits 1 thru 9. If you use logic you can solve the puzzle without guesswork. Need a little help? The hints page shows a logical order to solve the puzzle. Use it to identify the next square you should solve. Or use the answers page if you really get stuck.
A person reveals his character by nothing so clearly as the joke he resents. -- G.C. Lichtenberg
3 4 9
Intermediate Sudoku by KrazyDad, Volume 1, Book 21
Sudoku #6 4 8 3
7 2 5 3 3 6
4 7 1 7 9 3
9 2 6
5 1 4
© 2013 KrazyDad.com
Fill in the blank squares so that each row, each column and each 3-by-3 block contain all of the digits 1 thru 9. If you use logic you can solve the puzzle without guesswork. Need a little help? The hints page shows a logical order to solve the puzzle. Use it to identify the next square you should solve. Or use the answers page if you really get stuck.
"There is room in the smallest cottage for a happy loving pair." -- Friedrich Schiller
2 6 1
Intermediate Sudoku by KrazyDad, Volume 1, Book 21
Sudoku #7 6 4 3 2 7 5 4 1 6 9
8 5
2 1 9
7
3 6 8
2 3
© 2013 KrazyDad.com
Fill in the blank squares so that each row, each column and each 3-by-3 block contain all of the digits 1 thru 9. If you use logic you can solve the puzzle without guesswork. Need a little help? The hints page shows a logical order to solve the puzzle. Use it to identify the next square you should solve. Or use the answers page if you really get stuck.
Blessed are they who Go Around in Circles, for they Shall be Known as Wheels.
2 1 5
Intermediate Sudoku by KrazyDad, Volume 1, Book 21
Sudoku #8 5
3 2
8
1 4 9
7 9
2
5 4
7 4 9 8
1
2 8 3
6 1 © 2013 KrazyDad.com
Fill in the blank squares so that each row, each column and each 3-by-3 block contain all of the digits 1 thru 9. If you use logic you can solve the puzzle without guesswork. Need a little help? The hints page shows a logical order to solve the puzzle. Use it to identify the next square you should solve. Or use the answers page if you really get stuck.
KrazyDad's puzzle website is maintained with the help of your generous donations. Give online at http://krazydad.com Or by mail: Krazydad, P.O. Box 303 Sun Valley, CA 91353 USA Thank you!
9 7
Hints
Intermediate Sudoku by KrazyDad, Volume 1, Book 21
Sudoku #1 2
18
1
3
45
40 31 41 32
9
3
51
39
52
42 43 44 45 33 34
57
27 28 29
38 39 16 10
7
9
6
46 23 56 57 40 24 47 17 19
18
48
49
25
11
4
54 47 38 17
26 29 34 28 27
7
48
49
22
50 5
23
Sudoku #3 3
19 54
1
20 21 4
9
47
26
16 21 23
29
30
31
57 48
2
36
7
43 44 37
33
5
34 45
38 46
25 14 35 8
11
24 53 38 56
40
32 49 41 44 50
18 42 45
27 28
10
2 4
6 34
3
35
7
30 18
13
36 14
5
17 37
8
14 13 37 38 29
1
23 34 24
15
10 17
30
12 28
16
41 36
45 46 57
53 54 25
27
5
13 35
1
42 37
6
38 43
2
16 46
3
4
47 57 39
14
6
5
22 8
30
11
9
8
19 18 52 20
Sudoku #7
9
21
31
23 47 48 12
49 39 50 32 51 52 53 33
24 40 54 18
31 17 48 40
49 50 51
41 34 42 2
19 26 27 7
4
35 20 25 3
11
55 28 43 56 44 36
Sudoku #8
30 41 42 54 21 55 43
23
47 48 39
Sudoku #6
55 56 21 33
44
7
12
54 55 13 43 46
23
26 32 22 11
6
1
26 22
Sudoku #5
7
13
35 21
25
16 12
52 53 39 40 41
10
36
6
17 50 24 10 32
44 45
1
20 15 33 51 57 52 22 19
51
29
33
54 55 44 19 12
55 56 15
49
27 28 29
2
20
Sudoku #4
31
27 22
8
50 51 41 52 42 53 30 43
21
9
15
14
36 37 30 14 20 10
55 15 56 16
15
5
31
8
6
42
4
22
25 26 11 53 46 35 13 12
37 32
19
45 46 19 8
47
31 28 48
13 11
3
15
5
57 49 50 14 9
24 10
16 12
7
51 44 28
8
4 6
1
45 35 36 30 20
49 11 50 56 12 51 52 32 18
52 53
1
55 56 23 22 47
38 29 39
48
40
5
2
33 25 34 35 36 37
3 14
4 13
38 39 29 17
40 57 16 53 15 20 26
25
37 54 32
24 17
41 33 10
2
21 46
42 43
9
18 34 26 31 27
INSTRUCTIONS: These hint grids reveal the order in which the squares were solved by my computer. It's not necessarily the same order you would use, but it's probably close. Follow the numbered squares in order 1,2,3,... until you find a square you haven't solved yet. This square (or the one or two immediately after it) is a good candidate to solve next.
24
Sudoku #2
Answers Sudoku #1 4 5 2 3 7 9 6 5 8 1 3 7 3 6 5 8 1 7 8 9 2 4 9 6 5 3 4 2 9 2 7 1 6 8 1 4 Sudoku #3 5 7 8 4 2 6 3 8 4 1 9 6 9 2 4 7 7 3 5 1 1 8 6 3 6 9 1 2 8 5 7 9 3 4 2 5 Sudoku #5 7 6 5 1 3 2 4 8 8 1 9 5 4 5 1 9 6 7 3 2 9 8 2 7 1 4 6 3 5 3 8 6 2 9 7 4 Sudoku #7 7 5 6 8 9 8 2 3 4 3 1 2 5 7 4 9 8 1 3 7 6 2 9 4 3 4 7 5 2 6 8 1 1 9 5 6
Intermediate Sudoku by KrazyDad, Volume 1, Book 21
8 7 9 8 2 1 3 4 9 4 6 2 5 2 1 4 9 7 4 5 2 6 3 3 7 5 1 8 6 9 7 8 1 5 8 3 4 6 7 3 9 5 2
Sudoku #2 2 3 5 7 6 7 4 3 1 8 9 2 9 6 3 8 8 4 1 5 5 2 7 4 3 9 2 6 7 5 8 1 4 1 6 9
6 4 1 8 1 2 5 4 5 6 3 1 2 5 7 7 3 9 6 6 9 1 8 5 8 7 4 2 4 3 9 3 7 8 2
8
9 2 1 7 3 5 8 6 2 4 5 9 4 3 6 1 7 8
Sudoku #4 6 2 8 4 5 7 4 1 1 9 3 8 7 1 9 5 4 6 2 7 8 3 5 6 3 5 6 2 9 4 1 3 2 8 7 9
7 3 1 2 9 8 6 5 4 3 4 2 1 8 3 9 2 7 4 7 9 8 6 5 5 1 6
9
5
6
3
6 9 2 1 4 9 2 7 5 3 6 8 5 8 7 7 1 6 9 3 4 4 5 1 8 2 3
4
8
6
7
8 9 6
Sudoku #6 7 3 1 5 2 5 8 3 6 9 4 8 1 7 5 9 4 6 9 2 8 2 3 4 5 1 7 6 3 8 2 7 9 4 6 1
3 2 1 4 7 5 8 9 6 6 8 2 5 4 9 7 1 3 1 6 8 9 5 7 2 3 4
Sudoku #8 9 7 1 5 6 3 4 8 2 5 8 3 4 6 7 9 3 1 2 7 5 8 9 2 7 4 6 1 1 9 3 6 8 2 5 4
4 6 2 9 1 7 5 1 6 8 3 4 9 5 8 2 7 3
1
3 9
2 6 4 5 7 1 8
6
6 4 2 1 8 7
3 1 9 5 8 7 5 3 6 9 4 2 5 7 8 3 2 4 9 1 6
8 9 7 6 5 6 7 4 3 2 8 8 9 1 1 3 6 9 5 2 2 4 7 5 1 3 4
4 9 6 1 5 7 1 3 2 6 8 5 9 2 3 4 7 8
2 1
3 7 5 4
9
9
7 4 2 3 1
6 5
7 2 8 6 5 9 4 1 1 8 2 7 3 4
1 2 4 1 3 5 9 8 2 9 6 7 5 3
8 2 3 7 1 5 6 4 9 3 8 2 5 9 4 1 7 6 2 3 8 4 5 7 9 6 1
