IOIO - 2014

Russia 2014

IV International Origami Internet Olympiad

Russia 2014 1

Jury: Andrey1Ermakov1G1founder1of1the1olympiad Dmitry1Lysiuk1G1origami1olympiad1champion1in1;OII Andrey1Lukyanov1G1administrator1of1loveorigamiMinfo1forum Yaroslav1Terehov1G1administrator1of1oriartMru1forum Jared1Needle1G1origami1artist

Designers: Maria1Sinayskaya1KSouth1Africaw Andrey1Lukyanov1KRussiaw Yasushi1Miyashita1KJapanw Dmitry1Lysiuk1KBelarusw Sergey1Yartsev1KRussiaw Peter1Keller1KGermanyw Ryoichi1Takagi1KJapanw Andrey1Ermakov1KRussiaw Daniel1Kwan1KUSAw Olympiad1is1conducted1in1the1InternetM1All1official1announcements are1available1on1the1origami1forums: oriartMru;1forumMloveorigamiMinfo;1snkhanMcoMuk11eMtMcM For1more1information1please1contact1eGmail1specified1in1the1rulesM

Edited1by1Andrey1Ermakov 2

Contents: RulesSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSj

Diagrams: Taskd9d63dYoudaredalwaysdindmydheart3CSdSdSdSdSdSdSd5 TaskdAd63dHedgehogd3CSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSd7 TaskdOd63dUnicornd3CSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdS99 Taskdjd63dLoafd3CdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSAB Taskd5d63dDragonflyd3CSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSA6

CreasedPattern: Taskd6d63dFlamingod3CSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdO6d

Kusudama: Taskd7d63dStilettodStard3CdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSjBd

Tessellations: Taskd8d63dCirculardSawdBladed3CSdSdSdSdSdSdSdSdSdSdSdSjO Taskd9d63dСемьdсестёрd3CdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdj6d Taskd9Bd63dAccidentaldPseudodFlagstone3CSdSdSdS5B

Corrugation: Taskd99d63dMothd3CSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdS59d

OwndProjectdTheme: Taskd9ASdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdSdS5Ad 3

Rules): 68)Any)type)of)paper)can)be)used8 I8)Participants)are)allowed)to)paint)and)glue)models)if)it would)not)prevent)identification)of)all)elements)of)the model)q)including)preMcreased)lines)defining)the assembly)process,8)This)rule)does)not)apply)to)the) participant’s)own)design8 78)Only)photos)never)published)before)the)olympiad)are allowed8 S8)Each)model)should)be)photographed)from)at)least)three angles)to)clearly)display)all)the)details8)Low)quality photos)will)not)be)considered0)but)total)size)of)the resulting)message)should)not)exceed)6')Mb8 Recommended)size)of)pictures)is)from)S8'xS8')to 6@''x6@'')pixels8 @8)Minimal)editing)of)the)pictures)is)allowed)as)long)as)it doesnLt)affect)the)appearance)of)the)model8)E8g8)you)can crop)photos0)reduce)the)noise0)change)color)balance but)you)must)not)add0)erase)or)change)any)details8 68)Participants)should)not)upload)photos)of)their)models to)the)Internet)before)the)end)of)the)Olympiad8 78)Send)your)results)before)6@8668I'6S)to

origamiI'6Solympiad@gmail8com 4

You4are4always4in4my4heart

Task4№1 You4are4always4in4my4heart Designed4by4Andrey4Lukyanov

Difficulty4:4555_4_4_4_4_4_4_ Paper4:4404g/m2 Paper4size4:4204x4204cm Max4score4:434points 1

6

7

2

to45 5 8

3

4

9

open sink fold as shown

5

You are always in my heart 15

repeat steps 11-15

14

16

13 17

fold as shown 12

19

11

20

10

model complete

6

18

Hedgehog

Taskm№2

Hedgehog DesignedmbymSergeymYartsev

Difficultym:m*****m_m_m_m_m_ Paperm:m40mg/m2 Papermsizem:m30mxm30mcm Maxmscorem:m5mpoints 1

2

3

4 7

8 6

fo

ld

as

sh

ow

n

5

7

Hedgehog 18

21

17

16

20 19

15

flatten the model

repeat behind

swiv

el fo ld

14

9

12

13

11

repeat behind

10

to 8

8

Hedgehog 22

23

24

swivel folds repeat behind 16-24

26 27

to 20 25

repeat step 31 32

28

31

swivel fold

to 30 33

29

to 27

30

assmble using the existing crease lines as shown

9

Hedgehog

46 41 42

model complete

only for upper flap

40

39

45

43

44

repeat steps 40-41

38

37

34

35 36

assemble using the existing crease lines as shown

10

Unicorn

Unicorn

Task/№3

Designed/by/Andrey/Ermakov

Difficulty/:/******/_/_/_/_ Paper/:/40/g/m2 Paper/size/:/50/x/50/cm Max/score/:/7/points 1

2

7

6

5

8

9

4 3

11

Unicorn 22a

18

17

19

to 15

22

16

fo

ld

20

as

sh

ow

n

21

15

13

14

to

13

10 11

12

swivel fold

12

Unicorn 24

25

pet

al

23

26

rab

bit

28

27

ear

33

29

rep

eat

ste

p2 8

32

rep

eat

ste

ps

30

-3

1

34 30

pet

al

31

13

fol

d

fol

d

Unicorn 44

43

3

-4

8 t3 a e rep

47

nd

i beh

repeat 45-46 behind

42

45

46

inside reverse fold

41

40 39

38

to 33 35

36

37

inside reverse fold

14

repeat 34-36 behind

Unicorn 49

fold

as sh own

to 47

48 50

only for inner layer

52

53

51

57 54

58

59 55

56

repeat steps 48-59 behind

15

Unicorn

67 68

69

66

71

70

65

63

64

to 60

60

61

62

repeat steps 61-62 behind

16

Unicorn

73

74

to 66

72

75 76 77

82

81 78

80

79

to 72 repeat steps 76-79 behind

17

83

Unicorn

91

95 92

repeat behind

93 90

to 88

94

make 3D shape

89

88

87

85 86 84

18

Unicorn

96

95

97

99

100

98

105

101

104

make final shape

103

to 100

102

pull the inner flap

19

model complete

Loaf

Taskx№4 Loaf DesignedxbyxDmitryxLysiuk

Difficultyx:x*******x_x_x_ Paperx:x40xg/m2 Paperxsizex:x40xxx40xcm Maxxscorex:x9xpoints 1

2

3

cut a rectangle 7 4

5

6

20

Loaf add precreases as shown

15

14

b

a b

a

a

to 12

a

13 12

add precreases

11

0

6

9

8

9

0

to 7

9

6

0

9

21

10

9

3

3

0

Loaf 17

16

fold the remaining creases the same way

18

19

20

21

to 16

23

22

to 18

22

Loaf 32

31

a

a

33

a

b

b

b 30

add precreases as shown

a

29

a

28

a b b b 27

24

to 22 25

to 21

repeat steps 23-24

26

23

repeat steps 23-25

Loaf repeat steps 28-30 35

b

34

36

b

a

a a

b add precreases as shown

39

37

38

b

b

b

a a

a

44

b

repeat steps 28-40 43

a

b

a

repeat the remaining curved creases the same way

make curved creases 41

a

to 41

40

b

to 27 42

24

Loaf 52

ets the pock in s r e y la put the

53

51

shown fold as

repeat for each layer in this half of model

50

54

49 55

e

complet model is

48 45

47 46

25

red solid line: mountain black dotted line: valley

Dragonfly

Taskz№5

Dragonfly DesignedzbyzAndreyzErmakov

Difficultyz:z********z_z_ Paperz:z20zg/m2 Paperzsizez:z50zxz50zcm Maxzscorez:z12zpoints 6

1

crease using the existing points

2

32 - 32

3

5

4

repeat steps 4-5 horizontally

26

Dragonfly 8

7

9

assemble using the existing crease lines

11

to 7

10

assemble using the existing crease lines

12 13

27

Dragonfly 22 midline

21

25a

crease pattern of this part

23 assemble using the existing crease lines

20

24 closed sink

to 17

19

18

17

repeat symmetrically on the other half

14

15

16

add precreases

28

Dragonfly 25

26

27

op

en

swivel folds repeat symmetrically on the other half

to 26

29 midline

29a

28

repeat symmetrically on the other half

crease pattern of this part

33

to 28

34

n fold as show

30

35 n fold as show 33a

31

36

32

32a

repeat steps 32-33

29

si

nk

s

Dragonfly 44a

spread sink

44

crease pattern of this part

45 43

45a

46

crease pattern of this part

42 41

to 37

40

39

38

37

swivel fold

30

repeat steps 43-44

repeat steps 43-44

47

Dragonfly

closed sink

50

49

48

fold as shown

52 51

to 49

repeat steps 49-50

50a

53 57

56

only for top flap

57a

54 55

only for top flap fold as shown

31

Dragonfly midline

dragonfly base is ready

66

crease pattern of the dragonfly base

67 69

65 repeat 63-64

68

to 63

solid line: mountain dotted line: valley

61

to 59

62

63

repeat 59-61

64

52-57 58 60

59

to 43

repeat 52-57 twice fold as shown

32

77 inside reverse fold

76 79

closed sink

75 74

33

71

open sink

repeat 69-73

to 70

open sink

70

to 68

repeat 76-77 for the right part

Dragonfly

72

73

80

78

81

Dragonfly 90 double rabbit ear

89

91 88

repeat steps 84-90 behind

93

92

87

rabbit ear

85

86

84

82

90o 83a

83b

83

34

Dragonfly

96

94 95

98

99

repeat st eps 96-9 7 behind

97

repeat behind ins

ide

rev

ers

e fo ld

103

100

104

make final shape

fold

as

sho

wn

105

101

102

dragonfly complete

35

Flamingo

Task2№6 Flamingo Designed2by2Yasushi2Miyashita

Difficulty2:2******_2_2_2_ Paper2:2302g/m2 Paper2size2:2502x2502cm Max2score2:2102points

Crease Pattern

36

Flamingo 8

12

9

7

repeat steps 8-11

10

to 8

11

6

1

5

4

3

2

37

Flamingo 13

15 14

to 13 fold and unfold rabbit ears

17

16

18

19

22

to 13

21 24

38

to 20

20

23

Flamingo 36

32

crease pattern is complete

33

31

to 31

34

re

pe

35

at

ste

ps

it

bb

ra r

ea

fold as shown

to 26 30

29 28

26

25

27

repeat steps 21-24

fold as shown

39

32

-3

5

Stiletto2Star2

Task2№7 Stiletto2Star2 Designed2by2Maria2Sinayskaya

Difficulty2:2****_2_2_2_2_2_ Paper2:2302g/m2 Paper2size2:2102x2102cm Max2score2:272points Units2:230 1

2

3

7

4

8

6

5

9

to24

40

Stiletto Star 18

17

to 17

19

16

combine with one unit

unit

is c om plet e

15

14 13

10

11 12

41

rep eat

st e p2 0

Stiletto Star

21

unit add one double

22

20

t

ea

rep

p ste

18

ice

tw

e p 21 twic repeat ste blue point e around th

23 24

s

model is complete

nit maining u add the re e way the sam

42

Circular4Saw4Blade

Task4№8 Circular4Saw4Blade4 Designed4by4Ryoichi4Takagi4

Difficulty4:4*******4_4_4_ Paper4:4404g/m2 Paper4size4:4204x4204x4204cm Max4score4:474points

12 Crease Pattern

43

Circular Saw Blade 1

2

cut a rectangle 4

5

3

8

cut a hexagon 6

7

44

Circular Saw Blade grid is complete 16

15

14 13

9 12

10

11

45

Семьzсестёр

Taskz№9 Семьzсестёрz DesignedzbyzPeterzKeller

Difficultyz:z*******z_z_z_ Paperz:z40zg/m2 Paperzsizez:z20zxz20zxz20zcm Maxzscorez:z7zpoints

16

se a e r

C

46

rn

P

te at

Семь сестёр 1

2

cut a rectangle 4

5

3

8

cut a hexagon 6

7

47

Семь сестёр 14

cr

ea

13

gr

id

is

se

as

sh

ow

n

co

sol do id li tte ne d :m lin e: ount va lle ain y

m

ple

te

12

9

10 11

48

fol

d

as

sh

ow

n

Семь сестёр red solid line: mountain blue dotted line: valley

15

16

17 18a

18

19

to 16 21

20

model is complete

repeat 17-19 at all parts

49

Accidental2Pseudo2Flagstone2

Task2№10 Accidental2Pseudo2Flagstone2 Designed2by2Daniel2Kwan

Difficulty2:2********2_2_ Paper2:2402g/m2 Paper2size2:2402x2402cm Max2score2:282points

Crease Pattern

50

Moth

Tasko№11

Motho DesignedobyoAndreyoErmakov

Difficultyo:o*********o_ Papero:o30og/m2 Paperosizeo:o25oxo50ocm Maxoscoreo:o14opoints

56

Crease Pattern

28

51

YfHappinessfY

Taskf№GL

Maximumfscore:fG5fpoints

Infthisftaskfwefproposefyouftofcreatef yourfownfmodel' Theftopicfisfveryfbroadfandfallowsfyou tofdemonstratefyourffoldingfskills' Youfcanfchoosefanyfsubjectfyoufwant iffitfmatchesftheftopic'fItfcanfbefjustfmerryffacesCfsmilesforfsomethingfthatf makesfyoufhappy:fyourfownfdreamsfandfdeepestfdesires' ThefmodelfcanfbefcreatedfinfanyfstyleCftechniquefandfcomplexityflevel' Butftherefstillfarefaffewfbasicfrules: +fonefconvexfpolygonfsheetfoffpaperf(e'g'fsquareCfrectangleCftriangleC pentagonCfhexagonCfetc'); +fanyfcolorCfsizeCftypefoffpaperCfetc' +fyoufcanfusefMCzpaperCffoil+paperCfwet+foldingfasfwell; +fnofcutCfnofglue; +fnofpaintingforfvarnishingfofftheffinishedfmodelf(youfstillfcanfpaintfthe paperfbeforefyoufstartffolding); +fminimalfeditingfoffthefpicturesfisfallowedfasflongfasfitfdoesn-tfaffect thefappearancefoffthefmodel'fE'g'fyoufcanfcropfphotosCfreducefthefnoiseC changefcolorfbalancefbutfyoufmustfnotfaddCferaseforfchangefanyfdetails; +fyoufcanfmakefafcompositionfphotofwithfasfmanyfdifferentfmodelsfas youflikeCfbutfonlyfonefoffthemfwillfbefjudgedf(youfmustfspecifyfwhich onefisfit); +fyoufmustfincludefCPforfotherfinformationfaboutfyourfmodelf(sofjuryf canfseefthatfthefrulesfarefobserved)'

GoodfLuckgf 52

Saint Petersburg 2014

The End

53