V International Origami Internet Olympiad

Russia 2015

V International Origami Internet Olympiad Russia 2015 1

Jury: Andrey Ermakov - founder of the olympiad Peter Stein - origami olympiad champion in 2014 Yaroslav Terehov - administrator of oriart.ru forum Andrey Lukyanov - administrator of loveorigami.info forum Jared Needle - origami artist Designers: Andrey Lukyanov (Russia) Nathan Zimet (USA) Sebastien Limet (France) Andrey Ermakov (Russia) Juston Hairgrove (USA) Uniya Filonova (Russia) Yasushi Miyashita (Japan) Martin Laube (Germany) Ryoichi Takagi (Japan) Eric Joisel (France) Viviane Berty (France) Olympiad is conducted in the Internet. All official announcements are available on the origami forums: oriart.ru; forum.loveorigami.info; snkhan.co.uk e.t.c. For more information please contact e-mail specified in the rules. Edited by Andrey Ermakov 2

Contents: Rules.................................4 Diagrams: Task 1 (" Heart with butterfly ")........... 5 Task 2 (" Rooster ")..................... 9 Task 3 (" Feast of the king ")............. 16 Task 4 (" In the frame ")................22 Task 5 (" Gorilla ")..................... 30 Kusudama: Task 6 (" Miranda star sonobe ").......... 40 Crease Pattern: Task 7 (" Spider ")..................... 43 Tessellations: Task 8 (" Windmills ").................. 48 Task 9 (" Sea knot ")...................51 Task 10 (" Turtle ").....................53 Corrugation: Task 11 (" Marguerite ").................67 Own Project Theme: Task 12............................. 70 3

Rules : 1. Any type of paper can be used. 2. Participants are allowed to paint and glue models if it would not prevent identification of all elements of the model ( including pre-creased lines defining the assembly process). This rule does not apply to the participant s own design. 3. Only photos never published before the olympiad are allowed. 4. Each model should be photographed from at least three angles to clearly display all the details. Low quality photos will not be considered, but total size of the resulting message should not exceed 10 Mb. Recommended size of pictures is from 640x640 to 1500x1500 pixels. 5. Minimal editing of the pictures is allowed as long as it doesn't affect the appearance of the model. E.g. you can crop photos, reduce the noise, change color balance but you must not add, erase or change any details. 6. Participants should not upload photos of their models to the Internet before the end of the Olympiad. 7. Send your results before 15.11.2015 to origami2015olympiad@gmail.com 4

3 2 Task 1 Heart with butterfly Andrey Lukyanov (Russia) Difficulty: **** Paper: 40-50 g/м 2 Paper size: 20-20 см Model width: 10 см Max score: 3 points 1 4 assemble using the existing crease lines 7 8 open sink 9 5 6 5

12-16 17 18 21 19 15 16 15 14 20 13 11 10 11 12 6

22 23 24 26 25 21 27 21-24 28 31 32 29 30 33 7

41 42 45 model is complete 40 43 44 39 38 37 34 35 36 34-36 8

Task 2 Rooster Nathan Zimet (USA) 3 2 Difficulty: ***** _ Paper: 40-50 g/м 2 Paper size: 30-30 см Model length: 12 см Max score: 5 points 1 4 7 8 crease between the blue circled points do two rabbit ear folds to make a fish base 5 6 9 fold two flaps down 9

16 17 19 18 15 18-19 20 18 14 13 12 petal fold the corner to the top 10 11 11a open the upper layers assemble using the existing crease lines 10

22 open the flaps along the shown creases, the lower one is precreased 23 23a 21 in progress... 24 23b 25 23 fold the two flaps upwards 28 single layer 29 26 double layer 27 29a 26 11

turn the model over and rotate 37 38 39 36 32-35 31 34 35 33 30 31 27-29 32 12

40 41 42 41a 44 turn the model over 43 45 48 49 46 47 13

57 squash fold downwards to the left 59 56 fold rabbit ear as shown 58 55 54 53 50 51 52 14

60 61 62 65 64 63 66 72 model is complete 67 71 shape the model 70a 68 shape the back 69 70 15

Task 3 Feast of the king Sebastien Limet (France) Difficulty: ****** Paper: 40-50 g/м 2 Paper size: 40-40 см Model width: 18 см Max score: 7 points 3 2 1 6a 7 4 5 6 8 16

17 18 19-20 21 18 14 19 20 16 14 13 15 9 10 11 12 9-11 17

22 23 24 25 make the color change assemble using the existing crease lines 26 28 27 26 29 32 33 30 30 31 34 18 unfold the flap

40 46 42 43 45 41 44 40 39a 39 38 35 35 36 37 19

39 47 48 49 44 43 53 repeat behind 52 51 50 unfold, aligning the marked points 54 57 58 57 55 56 59 54 20

67 68 69 70 repeat behind 53 66 model is complete 73 shape the model 72 closed sink 71 65 64 63 60 62 54-59 61 21

3 2 Task 4 In the frame Andrey Ermakov (Russia) Difficulty: ****** Paper: 40-50 g/м 2 Paper size: 50-50 см Dimension: 15cм Max score: 9 points 1 4 7 8 5 6 9 22

19 17 18 19 17 17 22 17 17 17 17 17 17 17 20 20 21 20 20 20 20 20 20 20 20 16 open the model 15 cut along the crease lines 14 13 11 12 10 23

23 24 25 28 27 26 29 32 33 30 31 34 24

41 42 45 40 39-40 43 44 39 38a 38 35 35 36 37 25

46 47 47a 42-46 50 49 48 28 51 54 55 52 53 56 26

62-64 63 64 67 62 65 66 52 61 60 59 57 58 assemble using the existing crease lines 58a 57 58 55-56 27

72 68 69 70 73 72 71 74 76 77 74a outside reverse fold 75 78 73-74 73-74 73-74 28

86 87 90 model is complete 85 88 89 84 67 83 closed sink 82 79 72-82 68-71 80 81 29

Gorilla Task 5 Juston Hairgrove (USA) 1 Difficulty: ******* _ Paper: 40-50 g/м 2 Paper size: 45-45 см Model height: 15 см Max score: 11 points 6 7 2 5 8 3 4 9 2-3 30

16 17 20 15a 18 19 15 14 13 8-14 10 11 12 31

21 22 23 26 25 fold and unfold the corner using existing crease line 16-22 24 27 30 31 28 29 32 32

41 44 40 42 43 39 38 37 36 33 34 35 33

assemble using the existing crease lines 45 46 42-45 47 42-45 49 48 47a 50 28 25-48 52 53 50a 51 54 52 34

62 64 61 open sink 63 60 65 58 59 57a B A 57 55 52-54 56 A B 35

66 67 68 69 71 70 72 75 76 73 74 77 36

85 86 89 84 87 88 83 83 82 81 78 79 80 70 70-79 37

90 91 92 94a 94 93 95 97 fold the area with 3D-shapes as shown 98 make the mountain folds as shown 96 99 95a 92 98 38

104 106 upper finger only upper finger only 105 shape the model 101 model is complete 103a 103 102 101 100 101 101a 96-99 39

3 2 Task 6 Miranda star sonobe Uniya Filonova (Russia) Difficulty: **** Paper: 50-60 g/м 2 Paper size: 15-15 см Final height: 2o см Units: 30 Max score: 7 points 1 4 7 8 5 6 9 40

16 18 15a 12-14 17 17a 15 14 13 12 9 10 11 11a 41

19 curve 20 curve 21 unit is complete combine with one unit 22 23 25 combine with seven units around the green point model is complete 24a 24 combine with other units as shown 42

Spider Yasushi Miyashita (Japan) Task 7 Difficulty: ****** Paper: 20-30 g/м 2 Paper size: 50-50 см Model length: 27 см Max score: 10 points 43 Crease Pattern

8 9 12 solid line: mountain dotted line: valley 7 10 11 6 5 4 2 1 3 44

13 24 14 23 15 22 16 21 17 20 18 19 45

25 36 26 35 27 34 32-33 divide into four equal parts 28 19-20 33 29 23-26 32 30 31 13-30 46

37 38 41 40 39 19-29 50 49 43 39 42 40-41 44 crease pattern is complete 45 46 45-46 47 48 crease for all layers unfold the model divide in half crease as shown 45 47

Task 8 Windmills Martin Laube (Germany) Difficulty: ****** Paper: 50-60 g/м 2 Hexagon size: 18-18-18 см Model size: 12-12-12 см Max score: 7 points 16 Crease Pattern 48

6 7 5 8 cut a hexagon 3 4 1 2 49 cut a rectangle (>5:4)

the missing creases of the CP are located on the grid lines for further work please use the CP from the first diagram page 13 14 model is complete crease as shown grid is complete 12 9 10 11 50

Task 9 Sea knot Ryoichi Takagi (Japan) Difficulty: ******* _ Paper: 50-60 g/м 2 Paper size: 30-30 см Final length: 20 см Max score: 9 points 32 51 Crease Pattern

the missing creases of the CP are located on the grid lines 6 for further work please use the CP from the first diagram page 7 model is complete crease as shown 5 4 1 2 3 52

Turtle designed by Eric Joisel (France) reconstructed by Andrey Ermakov Difficulty: *********_ Paper: 50-60 g/м 2 Hexagon size: 30-30-30 см Model length: 35 см Max score: 15 points Task 10 Note: This is not the original folding sequence by Eric Joisel! The process of folding was deducted solely from the photos available on the web and is not guaranteed to be correct. 1 2 4 3 5 6 53 cut a hexagon

11 12 repeat the last action 10 9 7 8 54

13 diagonal grid "64-64-64" is ready 15 14 15 To correct the length of the base flaps you can use other grids. For example: Step 13: diagonal grid - 80х80х80; Step 15: segment length - 14 10 17 13 16 17a solid line: mountain dotted line: valley 55

25 26 29 24 27 28 23 22 18-20 21 18-20 18 19 20 56

30 31 32 35 34 33 36 39 39a crease pattern 37 38 repeat steps 22-37 with five other areas 39b 16 57

43 44 44a 41a 42 40 repeat structure from step 39a with selected areas 41 58

45 46 46a crease pattern 49 48 47 49a 53 crease pattern 52 50 51 53a 45-49 41 crease pattern 59

58 59 60a 60 57 55 56 56a 54 55 52-53 60

61 62 63 closed sink 65 64 60a 65a closed sink 66 68 69 closed sink 66a 67 70 57 61

73 75 76 77a 74 76a 77 action looks like '68-69' 73 72 68-71 71 71a 71b 67 62

78 79 74-77 81a 81 80 81 79 82 83 73-81 63

89a 90a fold as shown 90 89 fold as shown 91 fold only the upper layer: do not crease firmly collapse using existing crease lines 87 88 84 85 83 86 64

93 midline 93a midline 94 92 92 95 repeat steps 92-94 behind 96 97 97a repeat behind 98 99 100 65

111 110 model is complete shape the shell 106 107 108 repeat for other legs 109 collapse the fingers and shape the leg fold as shown along creases made in steps 13-15 105 104 106 open all layers 103 shape the head repeat behind 102 101 66

5 Task 11 Marguerite Viviane Berty (France) 3 2 Difficulty: ***** _ Paper: 50-60 g/м 2 Paper size: 20-20 см Final length: 8 см Max score: 5 points 1 4 8 9 7 5 10 6 67

17a crease pattern 18 19a 17 19 closed sink 14 15 16 16-18 11 11 12 13 68 repeat step 12 along red line as shown

20a 20 23 21-22 21-22 21-22 21-22 21-22 21-22 22 21 21-22 21-22 21-22 21-22 21-22 21-22 21-22 open the model as shown 24 27 model is complete 26 25 25a shape the border shape the inner layers 69

Task 12 Space Sweet Space Maximum score: 15 points In this task we propose you to create your own model. The topic is very broad which allows you to demonstrate your folding and designing skills. You can choose any subject you want if it matches the topic. It can be just starships, astronauts or planet rovers, any space objects and even the ufo, extraterrestrial e.t.c. The model can be created in any style, technique and complexity level. But there still are a few basic rules: - one convex polygon sheet of paper (e.g. square, rectangle, triangle, pentagon, hexagon, etc.); - any color, size, type of paper, etc. - you can use MC+paper, foil-paper, wet-folding as well; - no cuts, no glue; - no painting or varnishing of the finished model (you still can paint the paper before you start folding); - minimal editing of the pictures is allowed as long as it doesn't affect the appearance of the model. E.g. you can crop photos, reduce the noise, change color balance but you must not add, erase or change any details; - you can make a composition photo with as many different models as you like, but only one of them will be judged (you must specify which one is it); - you must include CP or other information about your model (so jury can see that the rules are observed). 70

Saint Petersburg 2015 The End 71