WSC1

Instructions booklet

Lucca 10 -11 March 2006

© 2006 nonzero

WSC1 organizer would like to thanks the following for creating puzzles for the 1st World Sudoku Championship: Cihan Altay, Conceptis/Jochen Vetter, Olga Leontieva, nonzero, Novax Media/Hendrik Hardeman, studiogiochi.

WSC1 WSC1

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9.

6 9 57 4 5 6 9

3 6 26 5 7

9 8 2 3 5 4 63 6 1

2 4 66 1 7 3 8

5 1 6

ææ

Start

Solution

Rules:

Clas

sic

Sud

oku

n

3 6 8 4 9 7 2 5 17 2 4 1 5 8 6 3 91 9 5 3 6 2 8 7 44 1 6 9 2 5 7 8 39 8 2 7 3 1 5 4 65 7 3 6 8 4 1 9 28 3 7 2 4 6 9 1 56 4 1 5 7 9 3 2 82 5 9 8 1 3 4 6 7

Fill in the grid so that every row, every column and every 4x2 box con-tains the digits 1 to 8.Numbers must be placed according to greater (>) and less (<) signs.

Rules:

Sudo

ku <>

n

20 7 17 17 16 3 22

9 15 4

8 9

10 6 33 9 23

22 14

11 5

9 7 14 14 7

7 11 14 19 13 10

ææ

Start

Solution

Fill in the grid so that every row, every column, and every 3x3 box con-tains the digits 1 through 6. Both numbers or pips could be used.

Rules:

Pips

Sud

oku n

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 0 through 9. Some cells contain two digits.

Rules:

0-9

Sudo

ku n

ææ

Start

Solution

70

84

79

56

8

2

14

8 43 2

5 07 3 6

1 54 7 3

8 03 25 6

70

84

79

56

83

24

52

72

14

3 1 8 9 2 0 4 79 6 4 3 8 5 2 15 2 4 7 1 0 9 60 8 7 3 5 9 1 61 9 3 2 6 7 0 54 6 1 0 7 3 8 9

4 9 8 6 3 1 5 06 3 1 0 2 5 8 48 5 0 9 7 6 3 2

70

84

79

56

8

2

14

8 43 2

5 07 3 6

1 54 7 3

8 03 25 6

70

84

79

56

83

24

52

72

14

3 1 8 9 2 0 4 79 6 4 3 8 5 2 15 2 4 7 1 0 9 60 8 7 3 5 9 1 61 9 3 2 6 7 0 54 6 1 0 7 3 8 9

4 9 8 6 3 1 5 06 3 1 0 2 5 8 48 5 0 9 7 6 3 2

ææ

Start

Solution

WSC1 WSC1

Fill in the grid so that every row, every column, and every 3x3 boxcontains the digits 1 through 9. The sum of the digits within eachsub-region is equal to the specified number. Digits in a sub-region are different from each other.

Rules:

Sum

Sud

oku

n

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. Cells with circles must contain digits 1-2-3, cells with squares must contain digits 4-5-6, blank cells must contains digits 7-8-9.

Rules:

147

Sudo

ku n

16 4 7 17 15

7 30 3 10

11 17 20 8

4 10 10 11

12 14 7 11

3 10 14 17

7 9 21 16 8

14 3

16 13 10

ææ

Start

Solution

A B C D E F G H I

1

2

3

4

5

6

7

8

9

2 94

3 5 8

76 1

2 6 8 5 1 7 3 4 93 1 5 2 4 9 7 6 87 4 9 8 3 6 2 1 55 9 1 7 8 4 6 3 24 3 2 6 5 1 9 8 78 7 6 3 9 2 1 5 41 2 7 4 6 5 8 9 39 5 3 1 7 8 4 2 66 8 4 9 2 3 5 7 1

A B C D E F G H I

1

2

3

4

5

6

7

8

9

2 94

3 5 8

76 1

2 6 8 5 1 7 3 4 93 1 5 2 4 9 7 6 87 4 9 8 3 6 2 1 55 9 1 7 8 4 6 3 24 3 2 6 5 1 9 8 78 7 6 3 9 2 1 5 41 2 7 4 6 5 8 9 39 5 3 1 7 8 4 2 66 8 4 9 2 3 5 7 1

ææ

Start

Solution

1 6 9 8 5 4 7 3 24 7 8 6 2 3 5 9 13 2 5 7 9 1 4 6 82 1 7 5 4 6 3 8 98 4 3 9 7 2 1 5 65 9 6 3 1 8 2 7 46 8 4 1 3 5 9 2 79 5 2 4 6 7 8 1 37 3 1 2 8 9 6 4 516 4 7 17 15

7 30 3 10

11 17 20 8

4 10 10 11

12 14 7 11

3 10 14 17

7 9 21 16 8

14 3

16 13 10

Fill in the grid so that every row, every column, every diagonal and every 3x3 box contains the digits 1 through 9.

Rules:

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9.The grey cell must contain even numbers, the white cells must con-tain odd numbers.

Rules:

Dia

gona

l Sud

oku

nO

dd/E

ven

Sudo

ku n

8 27 8 9 6

9 6 8

2 95 9 6 3

8 4 54 3 2 86 4

1 6 8 4 7 5 2 9 35 7 3 8 2 9 1 6 49 2 4 1 6 3 7 5 86 1 9 2 3 8 5 4 73 8 2 7 5 4 9 1 64 5 7 9 1 6 8 3 28 9 1 6 4 7 3 2 57 4 5 3 9 2 6 8 12 3 6 5 8 1 4 7 9

8 27 8 9 6

9 6 8

2 95 9 6 3

8 4 54 3 2 86 4

1 6 8 4 7 5 2 9 35 7 3 8 2 9 1 6 49 2 4 1 6 3 7 5 86 1 9 2 3 8 5 4 73 8 2 7 5 4 9 1 64 5 7 9 1 6 8 3 28 9 1 6 4 7 3 2 57 4 5 3 9 2 6 8 12 3 6 5 8 1 4 7 9

ææ

Start

Solution

Client - N°#_dd/mm/hh SRP_CODE:P-0-5SUD2032-27

© 2005 nonzero

1 36

3 17 18 5

3 48 61

6 7

1 5 6 9 4 8 7 2 37 9 4 3 6 2 1 5 88 2 3 5 7 1 9 6 42 7 9 1 5 4 8 3 63 4 8 6 2 9 5 7 15 6 1 7 8 3 2 4 94 1 5 8 3 7 6 9 29 3 7 2 1 6 4 8 56 8 2 4 9 5 3 1 7

Client - N°#_dd/mm/hh SRP_CODE:P-0-5SUD2032-27

© 2005 nonzero

1 36

3 17 18 5

3 48 61

6 7

1 5 6 9 4 8 7 2 37 9 4 3 6 2 1 5 88 2 3 5 7 1 9 6 42 7 9 1 5 4 8 3 63 4 8 6 2 9 5 7 15 6 1 7 8 3 2 4 94 1 5 8 3 7 6 9 29 3 7 2 1 6 4 8 56 8 2 4 9 5 3 1 7

ææ

Start

Solution

WSC1 WSC1

Fill in the grid so that every row, every column, and every outlined region contains the digits 1 through 9.

Rules:

Fill in the grid so that every row, every column, and every 3x3 box of both grids contains the digits 1 through 9.

Rules:

Irre

gula

r Sud

oku

nM

ulti

Sudo

ku x

2 n

5 8

1 2 4 35 7

91 3

7 8 1 6

3 9

ææ

Start

Solution

ææ

5

63

7

64

71

6

8

5

2

3

6

7

8

2

9

5

6

56

7

6

89

2

4

5

2

48

1

3

46

8

3

5

1

2

7

5

8

7

5

6

4

17

22

1

43

9

Start

2 6 3 7 1 8 9 5 44 8 1 2 7 5 3 6 97 2 8 9 5 4 1 3 69 4 6 1 8 3 7 2 55 3 7 4 9 6 2 8 13 1 4 5 2 7 6 9 81 5 2 8 6 9 4 7 38 7 9 6 3 1 5 4 26 9 5 3 4 2 8 1 7

Solution827516394

143978625

956234871

671489532

435627189

289153746

568792413628957

712345968457213

394861257193846

846932571

321745689

795861324

179286435

632514798

584379162

Fill in the grid so that every row, every column, and every outlined region contains the digits 1 through 9. Some of the outlined regions will wrap between the top and bottom edges, and/or the left and right edges of the grid.

Rules:

Toro

idal

Sud

oku

n

Client - N°#_dd/mm/hh SRP_CODE:P-0-toroide

© 2005 nonzero

7 4 52 8 3 6

4 2 13 59 3 8

67

6 4 84

ææ

StartClient - N°#_dd/mm/hh SRP_CODE:P-0-toroide

© 2005 nonzero

7 4 52 8 3 6

4 2 13 59 3 8

67

6 4 84

Solution6 9 2 3 1 8

1 7 9 5 47 6 5 8 3 9

8 1 6 9 7 2 42 5 4 1 6 7

8 3 7 9 4 5 2 15 4 2 8 3 1 9 61 9 7 5 2 3

5 3 1 8 9 6 7 2

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. The two-tone extra-regions must contain each the digits 1 through 9.

Rules:

Extr

a-Re

gion

s Su

doku

n

Client - N°#_dd/mm/hh SRP_CODE:P-0-50825-24

© 2005 nonzero

5 3 2 9 6 1 4 7 87 9 4 5 8 2 6 1 36 1 8 4 3 7 9 5 29 2 1 7 5 8 3 6 48 5 3 6 1 4 2 9 74 6 7 3 2 9 5 8 11 4 5 8 9 3 7 2 63 8 9 2 7 6 1 4 52 7 6 1 4 5 8 3 9

2 3 4 7 1 8 6 9 51 5 7 6 9 3 2 8 49 8 6 4 2 5 1 7 36 1 2 8 3 4 7 5 93 9 8 2 5 7 4 6 17 4 5 9 6 1 8 3 25 6 1 3 7 2 9 4 84 7 3 1 8 9 5 2 68 2 9 5 4 6 3 1 7

5 7 89 4 312 1

8 75 8

23 1 42 7 9

ææ

Start

Solution

WSC1 WSC1

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. Ouside digits must be inserted in the corresponding row or column of the contiguos box.

Rules:

Out

side

Sud

oku n

4 1 6 8 5 9 2 3 78 3 5 2 1 7 9 4 69 2 7 6 4 3 5 1 87 5 1 9 8 6 4 2 33 9 4 7 2 5 8 6 12 6 8 4 3 1 7 5 95 7 9 3 6 2 1 8 41 8 3 5 7 4 6 9 26 4 2 1 9 8 3 7 5

24 1 6 39 3 8 7 5 1 7

4 6 33 8 4 6

1 5 81 3

3 4 9 6 86 8 5 9

5 7 92 9

4 3 51 7 9 3 2 1 7 2

4 88

4 1 6 8 5 9 2 3 78 3 5 2 1 7 9 4 69 2 7 6 4 3 5 1 87 5 1 9 8 6 4 2 33 9 4 7 2 5 8 6 12 6 8 4 3 1 7 5 95 7 9 3 6 2 1 8 41 8 3 5 7 4 6 9 26 4 2 1 9 8 3 7 5

24 1 6 39 3 8 7 5 1 7

4 6 33 8 4 6

1 5 81 3

3 4 9 6 86 8 5 9

5 7 92 9

4 3 51 7 9 3 2 1 7 2

4 88

ææ

Start

Solution

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. Digits in the outside frame equal the sum of the three numbers of the corresponding row or colum in the contiguos box.

Rules:

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. All neighbouring cells with consecu-tive digits have a thick border/dot in between.

Rules:

Fram

e Su

doku

n

Cons

ecut

ive

Sudo

ku n

8 9 6 5 1 7 3 2 41 7 4 3 2 8 9 5 62 5 3 6 9 4 1 7 86 8 2 7 5 1 4 3 95 3 1 4 8 9 7 6 27 4 9 2 6 3 8 1 59 1 5 8 7 2 6 4 34 6 7 9 3 5 2 8 13 2 8 1 4 6 5 9 7

11 21 13 14 12 19 13 14 1823 1 912 7 5 2010 1616 5 169 5 4 9 2 1520 6 1415 1317 6 8 1113 4 21

16 9 20 18 14 13 13 21 11

8 9 6 5 1 7 3 2 41 7 4 3 2 8 9 5 62 5 3 6 9 4 1 7 86 8 2 7 5 1 4 3 95 3 1 4 8 9 7 6 27 4 9 2 6 3 8 1 59 1 5 8 7 2 6 4 34 6 7 9 3 5 2 8 13 2 8 1 4 6 5 9 7

11 21 13 14 12 19 13 14 1823 1 912 7 5 2010 1616 5 169 5 4 9 2 1520 6 1415 1317 6 8 1113 4 21

16 9 20 18 14 13 13 21 11

ææ

Start

Solution

Client - N°#_dd/mm/hh SRP_CODE:P-0-50825-24

© 2005 nonzero

3 6 5 1 9 8 7 2 44 9 1 2 7 5 6 3 88 7 2 3 6 4 5 9 11 4 7 6 5 3 9 8 29 5 8 7 4 2 1 6 32 3 6 9 8 1 4 5 76 2 3 5 1 7 8 4 95 1 4 8 2 9 3 77 8 9 4 3 6 2 1

65

71 5

7 9 16 8

3 16 4

8 39

ææ

StartClient - N°#_dd/mm/hh SRP_CODE:P-0-50825-24

© 2005 nonzero

3 6 5 1 9 8 7 2 44 9 1 2 7 5 6 3 88 7 2 3 6 4 5 9 11 4 7 6 5 3 9 8 29 5 8 7 4 2 1 6 32 3 6 9 8 1 4 5 76 2 3 5 1 7 8 4 95 1 4 8 2 9 3 77 8 9 4 3 6 2 1

65

71 5

7 9 16 8

3 16 4

8 39

Solution

Put the numbers 1-9 into the triangular cells so that each of 6 large trian-gles and every line (of any length, even uncontinuous) contain every digit 1-9 not more than once. Attention: the border lines consist of 8 cells.

Rules:

Star

Sud

oku

n

97

5 6

8 312

43

2 91

8

2 138

4 97

65

393 6

9

145

72 91

86 45 3

4

8671

5

5 8

267 2

7

4

9 6

8

3

1

23

5

1

5

4

267

7

4

ææ

Start

Solution

97

5 6

8 312

43

2 91

8

2 138

4 97

65

393 6

9

145

72 91

86 45 3

4

8671

5

5 8

267 2

7

4

9 6

8

3

1

23

5

1

5

4

267

7

4

WSC1 WSC1

Fill in the square with digits from 1 to 9 so that in each row, in each column, and in each 3x3 region all digits are different. Some rows and columns form correct arithmetic expressions reading from left to right or from top to bottom.

Rules:

Pand

igita

l Sud

oku n

ææ

4 7 3

2 1 9

6 5 8

5 1 6

3 4 8

2 9 7

9 8 2

5 6 7

3 4 1

9 2 6

3 4 7

1 8 5

4 8 3

9 5 1

6 7 2

1 7 5

8 2 6

4 9 3

5 9 2

8 6 4

7 3 1

7 3 4

1 2 5

8 6 9

6 1 8

7 3 9

2 5 4

3

2

8

8

9

7

3

2 4 3

9 1

6 7 2 9

2

8

1

1

6

9

2

Solution

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. The product of the digits within each sub-region is equal to the specified number. Digits in a sub-region need not to be different from each other.

Rules:

Fill in the grid so that every row, every column, and every 3x2 or 2x3 box contains the digits 1 through 6.

Rules:

Prod

uct S

udok

u n

Min

i Sud

oku

n

ææ

Solution

Client - N°#_dd/mm/hh SRP_CODE:P-6-50901-14

© 2005 nonzero

1 45 24 1

4 65 4

6 3

1 2 6 3 4 55 3 4 2 1 66 4 1 5 3 22 5 3 4 6 13 1 5 6 2 44 6 2 1 5 3

ææ

Start Solution

6 7 5 1 3 9 2 4 88 4 3 2 6 5 9 7 11 2 9 7 4 8 5 3 65 3 4 9 2 1 8 6 79 8 1 3 7 6 4 2 52 6 7 5 8 4 3 1 97 9 8 4 1 3 6 5 23 1 6 8 5 2 7 9 44 5 2 6 9 7 1 8 3

Client - N°#_dd/mm/hh SRP_CODE:P-6-50901-14

© 2005 nonzero

1 45 24 1

4 65 4

6 3

1 2 6 3 4 55 3 4 2 1 66 4 1 5 3 22 5 3 4 6 13 1 5 6 2 44 6 2 1 5 3

Start

Start

4 7 3

2 1 9

6 5 8

5 1 6

3 4 8

2 9 7

9 8 2

5 6 7

3 4 1

9 2 6

3 4 7

1 8 5

4 8 3

9 5 1

6 7 2

1 7 5

8 2 6

4 9 3

5 9 2

8 6 4

7 3 1

7 3 4

1 2 5

8 6 9

6 1 8

7 3 9

2 5 4

3

2

8

8

9

7

3

2 4 3

9 1

6 7 2 9

2

8

1

1

6

9

2

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 6. Each digits appears as in a liquid crystal display, as shown in the example. Parts of some digits are al-ready placed in the grid.

Rules:

Dig

ital S

udok

u n

ææ

Start

Solution

WSC1 WSC1

Fill in the grid so that every row, every column, and every outlined region contains the digits 1 through 6.

Rules:

Irre

gula

r 6x6

Sud

oku n

562413

235146

641325

413652

354261

126534

24

3

4

4

2

1

5

5

6

65

ææ

StartSolution

Fill in the grid so that every row, every column, and every outlined region contains the digits 1 through 12.

Rules:

Irregular: fill in the grid so that every row, every column, and every outlined region contains the digits 1 through 9.Diagonal: fill in the grid so that every row, every column, every dia-gonal and every 3x3 box contains the digits 1 through 9.

Rules:

Irre

gula

r 12x

12 S

udok

u n

Mul

ti-m

ixed

Sud

oku

n

312657984

968241357

859416273

435798162

743182596

297563418

574839621

621375849

186924735

2

5

9

6

1

5

85

73

37

8

61

57

21

2

3

4

6

2

7

ææ

Start

Solution

6

4

95

2

76

5

3

3

8

7

9

42

64

1

4

9

623

19

9

2

1

5

1

3

5

4

7

2

64

835

21

3

6

54

98

æ

Start

Solution

Place the given pieces into the grid without overlapping them.Then fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9.The four corner boxes of the finalized grid have been marked with dots on the pieces too.

Rules:

Mec

hani

cal S

udok

u n

617382594

895423761

159674832

342865917

736941285

281597643

478239156984273

564718329751468

923156478623519

962378145

781542396

534196782

647835921

893217654

215469837

æ

WSC1 WSC1

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9.In each 3x3 box there is a different rule to follow.

Digital: Digits are in digital form, as given below.Odd/Even: Grey cells must contains even digits, white cells must con-tains odd digits.Consecutive: All neighbouring cells with consecutive digits have a thick border/dot in between.Sum: Digits in a sub-region add up to the specified number.Classic: No special rule.Pips: Digits are given as pips, like on dominoes or dice, as given below.Big/Small: Big digits (from 6to 9) are on cells with circles, small digits are on blank cells.Inequality: The inequality sign between each pair of digits must stand correct.Pandigital: First two row of numbers add up to the number formed on the third row.

Rules:

Com

bine

d Su

doku

n

Digital Even-Odd

Sum Classic Pips

Big-Small Inequality Pandigital

Consecutive

4

26

7

12

3 8 12 4 96 7 5

9 7 61 5 34 8 2

8 6 32 5 97 1 4

4 5 27 1 68 9 3

5 7 29 4 61 3 8

1 6 85 3 79 2 4

3 4 92 1 85 6 7

Digital Even-Odd

Sum Classic Pips

Big-Small Inequality Pandigital

Consecutive

4

26

7

12

3 8 12 4 96 7 5

9 7 61 5 34 8 2

8 6 32 5 97 1 4

4 5 27 1 68 9 3

5 7 29 4 61 3 8

1 6 85 3 79 2 4

3 4 92 1 85 6 7

Digital Even-Odd

Sum Classic Pips

Big-Small Inequality Pandigital

Consecutive

4

26

7

12

3 8 12 4 96 7 5

9 7 61 5 34 8 2

8 6 32 5 97 1 4

4 5 27 1 68 9 3

5 7 29 4 61 3 8

1 6 85 3 79 2 4

3 4 92 1 85 6 7

Fill in the cube so that every outlined region and every layer (as shown by the double arrows) contains the digits 1 through 8.

Rules:

Cubi

c Su

doku

n

ææ

1

5

1

2

76

4

2

7

57

6

8 3

7

1

4

53

4

1

6

5

8

7

2

2

7

5

3

6

1

4

8

1

6

2

5

4

3

8

7

8

5

3

1

7

2

6

4

5

6

1

4

6

7

8

2

2

38 3

Start

Solution

1

5

1

2

76

4

2

7

57

6

8 3

7

1

4

53

4

1

6

5

8

7

2

2

7

5

3

6

1

4

8

1

6

2

5

4

3

8

7

8

5

3

1

7

2

6

4

5

6

1

4

6

7

8

2

2

38 3

Digits in English:

1.2.3.4.5.6.7.8.9.

Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. Digits are written in word form and some letters are already given. A neutral language will be used.

Rules:

Wor

d Su

doku

n

ææ

Start

Solution

Digits in English:

1.2.3.4.5.6.7.8.9.

Digits in English:

1.2.3.4.5.6.7.8.9.

Digits in English