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VIII International Origami Internet Olympiad
Round 2
© Andrey Ermakov
Russia 2018
VIII International Origami Internet Olympiad
Edited by Andrey Ermakov Test folding by Peter Stein Translated by Yaroslav Terehov
All rights reserved. No part of this publication may be reproduced or utilised in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without prior written permission from the model designers.
e-mail: [email protected]
© A.O. Ermakov, 2018
VIII International Origami Internet Olympiad
Round 2
Jury:
Andrey Ermakov - founder of the olympiad
Dzmitry Lysiuk - IOIO-2011, IOIO-2015 champion Peter Stein - IOIO-2014 champion Yaroslav Terehov - origami artist
Designers:
Marcelo Arispe Guzman (USA) Peter Stein (Germany) Li Lianhua (China)
Andrey Ermakov (Russia)
Usman Rosyidhi (Indonesia) Pei Haozheng (China)
Ryoichi Takagi (Japan) Fu Wei (China)
Elke Muche (Germany)
Olympiad is conducted in the Internet. All official announcements are available on the facebook page: - https://www.facebook.com/OrigamiOlympiad and on the origami forums: - snkhan.co.uk - oriart.ru - forum.loveorigami.info
4
Contents:
Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Diagrams:
Task 1. Cuttlefish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Task 2. Through Time and Space . . . . . . . . . . . . . . . . 11
Task 3. Flat Scorpion . . . . . . . . . . . . . . . . . . . . . . . . 19 Task 4. Lion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Kusudama:
Task 5. Sky Scraper Kusudama . . . . . . . . . . . . . . . . . 37
Crease Pattern:
Task 6. White Deer with Red Scarf . . . . . . . . . . . . . . 40
Tessellations:
Task 7. Graphene . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Task 8. Needles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Task 9. Star Twist Tess . . . . . . . . . . . . . . . . . . . . . . . 48
Corrugation:
Task 10. Fan Fold . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Your Own Project Theme:
Task 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5
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. Recommended size of pictures is from 640x640 to 1500x1500 pixels. Please don't send us smaller pictures and don't combine several photos into one!
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. Upload the photos to your profile before the deadline (November 18). Check the timer in your profile.
7. The winners of the first round are determined based on the number and quality of completed tasks. Check your profile for the further instuctions.
8. Participants should not upload photos of their round 2
models to the Internet until round 2 ends (November 18). 6
Cuttlefish
Task №1
Marcelo Arispe-Guzman (USA) Difficulty: *****_ _ _ _ _ Paper: 40-50 g/m2 Paper size: 30-30 cm Max score: 5 points
1 6
7
8 №4 new
2 5
9
3 10
4
7
19
18
22
17 20
21
№ 13
14
15
16
12
11
8
13
25
№ 18
24
23
27
28
26
33
32
29 № 24
34
31
30
19 -29
9
42
43
42a
44 shape th e model
45
crease pattern
model comple te
40
41
38
39
37 new
36
№ 31
35
10
Task №2
Through Time And Space Peter Stein (Germany) Difficulty: ******_ _ _ _ 2
Paper: 40-50 g/m Paper size: 40-40 cm Max score: 6 points
1
2
3
8 4
7
9 5
6
11
18
17
4-17 new
16
15
10
op
en
si
19
20
nk
21
14
13
12
11
new
12
22
23
24
19-22
25
26
27
30
№ 28
29 28
13
39 new
new
fold along the existing creases
39a
№ 33
38
37
36
31
35
26-32
32
33
14
34
41 40
42 44a
43
44 bas
e fo rm
48
com ple
te
№ 44
45
46
15
47
58
59
60
№ 56
57
56
54
49
50
55
53
52
51
16
61 63
62
64
65
66
67 70
71
№ 63
68
69
№ 47
72
shape the body
17
83 82
shape the model
model complete
81
80 79 new
shape as shown
fold as shown
76
77 № 73
78
74 73
18
75
Flat Scorpion
Task №3
Li Lianhua (China)
Difficulty: *******_ _ _ Paper: 40-50 g/m 2 Paper size: 50-50 cm Max score: 7 points
1 7
6
2
8
5
3 4
9
19
18
17
21
№ 15
19
16
20 new
15
14
10
13
11
9
20
12
22
24
23
27
25
№ 12
26
27
27
28 27
29
31
32 30
33
21
42
45
41
43 40
new
44
new
38 39
34
35
22
37
36
30-36
47
46
48
51
50
49
new
№ 48
53 new
56
55
53-55
№ 52
52
make landmark creases
57 54
23
66
65
69
№ 58
64
68
67
63
58
59-6 5
62
61
59
60
=0
24
71
70
72
73
74
75
76
80
79
81
№ 75
78 № 69
77
25
89
90
93
№ 43
91
88
92
69-8 7
№ 83
87
85
86
82
83
26
84
95
94
96 № 94
97
98
99
104
105
l
100 l
de mo
101
te ple m o c
102 27
pe sha
de mo the
№ 98
103
Task №4
Lion
Andrey Ermakov (Russia) Difficulty: ********_ _ Paper: 40-50 g/m2 Paper size: 45-45 cm Max score: 8 points
1 7 №3
6
new
2
8
5
3 4
9
28
23 20
19
№7
18
17
21
22
16
15
14
13 10-
№ 12
11
№ 10
10
29
12
13
25
24
26 № 23
new
28 29
27
new
30
33
32a № 30
31
32
30
34
42
46
43
new
№ 44
41
44
45
39
40
35
38
37
36
31
47
48
№ 46
52
51
49
50
new
55a
56
53 41-52
55
54
32
56a
67a
65 64
64
60-62
63 63
67 66
62
60
№ 57
57
61
58
33
59
68a
68
69
70 71
72
№ 69
76a
73
α
α
α
α
76 74
№
75
73
77
34
86
№ 80
85
89
84 87
83
88
82
new
81 79
80
№ 77
78
35
87-89
90
95
91 92
93
94
91-95
100
96
model complete
99
97 98
36
shape the model
Task №5
Sky Scraper Kusudama Usman Rosyidhi (Indonesia)
Difficulty: *****_ _ _ _ _ Paper: 50-60 g/m
2
Paper size: 10-10 cm
3
2
4
5
Number of units: 30 Max score: 5 points
8
7
6
37
9
1
join 1 more u nit
16 tc om pl et e
15
un i
17
jo
in
1
14
13
10
11-12
12
11
38
m or
e
un i
t
join 2 mor e units
19 18
jo
in
5
m or
e
un i
ts
18
20
21
model complete
join the rest of the units
39
Task №6
White Deer With Red Scarf Pei Haozheng (China)
Difficulty: *********_ Paper: 30-40 g/m 2 Paper size: 60-60 cm
36
Max score: 9 points
Crease Pattern
40
8
7
36-36 grid complete
10
6 5
1
12
9
11
divide the grid parts into half as shown
4
2
3
41
13
Step 1
13a
14
Step 2
14a
42
15a
red scarf
16
left antler
17
right antler
model complete shape the model
15
Step 3
fold the existing area as shown
43
Task №7
Graphene
Ryoichi Takagi (Japan)
Difficulty: ******_ _ _ _ 2
Paper: 40-50 g/m Hexagon size: 18 cm
Cr
ea se
Pa tte r
n
16
Max score: 6 points
44
Needles
Task №8
Andrey Ermakov (Russia)
Difficulty: *******_ _ _ Paper: 40-50 g/m
2
Hexagon size: 18 cm
Cr
ea se
Pa tte r
n
16
Max score: 7 points
45
1
2
cut a rectangle (>5:4)
3 4
8
5
cut a hexagon
6
7
46
14
for further work please use the CP from the first diagram page
CP he es t lin of ses grid a r e he gc nt n i o iss ed t m a e th e loc ar
13
te
el
od m
cr e
as e
as sh ow
te
n
id gr
is
c
ple om
12
9
11 10
47
c
ple om
Task №9
Star Twist Tess Fu Wei (China)
Difficulty: *******_ _ _ Paper: 40-50 g/m
2
Hexagon size: 20 cm
Cr
ea se
Pa tte r
n
18
Max score: 7 points
48
1
2
3
4
5
8
7
6
49
17
19 18
16
5
14
15
9
4
13
11 10
12
50
20
21 14-18
5 4
4
22
5
23 24
14-18
26
CP he es t lin of es grid s a r e he gc nt n i o iss m ated e c th e lo ar
25
model complete
cr e
as e
for further work please use the CP from the first diagram page
as sh ow
te
n
id gr
is
c
ple om
51
Fanfold
Task №10
Elke Muche (Germany)
Difficulty: *****_ _ _ _ _ Paper: 70-80 g/m
2
Rectangle size: 10cm-80cm+ Max score: 5 points
1 2
4 3 repeat steps 2-3 three times
5 6
52
extra
12
11
10
9
8
7
cut a rectangle as shown
53
№2
13
14
shape as shown
15
16
17
54
21a
push the top of cylinder down and create a disk
22
21
lc
20
to glue the edges and fold as shown
e od m
e et l p om
make creases as shown
19
18
55
Forest
Task №11
Maximum score: 10 points In this task we suggest you create your own model. You can choose any subject if it matches the theme. As usual, we propose a very broad topic allowing you to demonstrate your folding and designing skills. The model can be created in any style, technique and complexity level. You just have to follow the ground rules:
For e
st
- the model has to be created specifically for this Olympiad; - one convex polygon sheet of paper (e.g. square, rectangle, triangle, pentagon, thhexagon etc); - no cuts; - any color, size, type of paper etc; - you can use MC+paper, foil-paper, wet-folding as well; - no painting or varnishing of the finished model (you still can paint the paper thbefore you start folding); - minimal editing of the pictures is allowed as long as it doesn't affect the thappearance of the model. (e.g. you can crop photos, reduce the noise, change thcolor balance but you must not add, erase or change any details); - you can make a composition photo with as many different models as you thlike, but only one of them will be judged (you must specify which one); - you must include CP and other information about your model so the jury can thsee that the rules have been observed; - multi-piece or modular designs will not be taken into account.
* This task is clearly very different from the others. We believe that at some point
experienced origami folders inevitably start creating their own models. Most of them just need some confidence boost to start believing in their talents. Inspiring new designers has always been one of our main goals and we are proud to see many contestants becoming well-known origami artists. As for the choice of subject, we are greatly concerned about environmental issues including deforestation. And while we urge not to waste natural resourses, we think origami is the best thing that can happen to paper. So let's use it to create something beautiful.
Good Luck! 56
The End
Saint Petersburg 2018 57
Round 2
© Andrey Ermakov
Russia 2018
VIII International Origami Internet Olympiad
Edited by Andrey Ermakov Test folding by Peter Stein Translated by Yaroslav Terehov
All rights reserved. No part of this publication may be reproduced or utilised in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without prior written permission from the model designers.
e-mail: [email protected]
© A.O. Ermakov, 2018
VIII International Origami Internet Olympiad
Round 2
Jury:
Andrey Ermakov - founder of the olympiad
Dzmitry Lysiuk - IOIO-2011, IOIO-2015 champion Peter Stein - IOIO-2014 champion Yaroslav Terehov - origami artist
Designers:
Marcelo Arispe Guzman (USA) Peter Stein (Germany) Li Lianhua (China)
Andrey Ermakov (Russia)
Usman Rosyidhi (Indonesia) Pei Haozheng (China)
Ryoichi Takagi (Japan) Fu Wei (China)
Elke Muche (Germany)
Olympiad is conducted in the Internet. All official announcements are available on the facebook page: - https://www.facebook.com/OrigamiOlympiad and on the origami forums: - snkhan.co.uk - oriart.ru - forum.loveorigami.info
4
Contents:
Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Diagrams:
Task 1. Cuttlefish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Task 2. Through Time and Space . . . . . . . . . . . . . . . . 11
Task 3. Flat Scorpion . . . . . . . . . . . . . . . . . . . . . . . . 19 Task 4. Lion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Kusudama:
Task 5. Sky Scraper Kusudama . . . . . . . . . . . . . . . . . 37
Crease Pattern:
Task 6. White Deer with Red Scarf . . . . . . . . . . . . . . 40
Tessellations:
Task 7. Graphene . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Task 8. Needles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Task 9. Star Twist Tess . . . . . . . . . . . . . . . . . . . . . . . 48
Corrugation:
Task 10. Fan Fold . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Your Own Project Theme:
Task 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5
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. Recommended size of pictures is from 640x640 to 1500x1500 pixels. Please don't send us smaller pictures and don't combine several photos into one!
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. Upload the photos to your profile before the deadline (November 18). Check the timer in your profile.
7. The winners of the first round are determined based on the number and quality of completed tasks. Check your profile for the further instuctions.
8. Participants should not upload photos of their round 2
models to the Internet until round 2 ends (November 18). 6
Cuttlefish
Task №1
Marcelo Arispe-Guzman (USA) Difficulty: *****_ _ _ _ _ Paper: 40-50 g/m2 Paper size: 30-30 cm Max score: 5 points
1 6
7
8 №4 new
2 5
9
3 10
4
7
19
18
22
17 20
21
№ 13
14
15
16
12
11
8
13
25
№ 18
24
23
27
28
26
33
32
29 № 24
34
31
30
19 -29
9
42
43
42a
44 shape th e model
45
crease pattern
model comple te
40
41
38
39
37 new
36
№ 31
35
10
Task №2
Through Time And Space Peter Stein (Germany) Difficulty: ******_ _ _ _ 2
Paper: 40-50 g/m Paper size: 40-40 cm Max score: 6 points
1
2
3
8 4
7
9 5
6
11
18
17
4-17 new
16
15
10
op
en
si
19
20
nk
21
14
13
12
11
new
12
22
23
24
19-22
25
26
27
30
№ 28
29 28
13
39 new
new
fold along the existing creases
39a
№ 33
38
37
36
31
35
26-32
32
33
14
34
41 40
42 44a
43
44 bas
e fo rm
48
com ple
te
№ 44
45
46
15
47
58
59
60
№ 56
57
56
54
49
50
55
53
52
51
16
61 63
62
64
65
66
67 70
71
№ 63
68
69
№ 47
72
shape the body
17
83 82
shape the model
model complete
81
80 79 new
shape as shown
fold as shown
76
77 № 73
78
74 73
18
75
Flat Scorpion
Task №3
Li Lianhua (China)
Difficulty: *******_ _ _ Paper: 40-50 g/m 2 Paper size: 50-50 cm Max score: 7 points
1 7
6
2
8
5
3 4
9
19
18
17
21
№ 15
19
16
20 new
15
14
10
13
11
9
20
12
22
24
23
27
25
№ 12
26
27
27
28 27
29
31
32 30
33
21
42
45
41
43 40
new
44
new
38 39
34
35
22
37
36
30-36
47
46
48
51
50
49
new
№ 48
53 new
56
55
53-55
№ 52
52
make landmark creases
57 54
23
66
65
69
№ 58
64
68
67
63
58
59-6 5
62
61
59
60
=0
24
71
70
72
73
74
75
76
80
79
81
№ 75
78 № 69
77
25
89
90
93
№ 43
91
88
92
69-8 7
№ 83
87
85
86
82
83
26
84
95
94
96 № 94
97
98
99
104
105
l
100 l
de mo
101
te ple m o c
102 27
pe sha
de mo the
№ 98
103
Task №4
Lion
Andrey Ermakov (Russia) Difficulty: ********_ _ Paper: 40-50 g/m2 Paper size: 45-45 cm Max score: 8 points
1 7 №3
6
new
2
8
5
3 4
9
28
23 20
19
№7
18
17
21
22
16
15
14
13 10-
№ 12
11
№ 10
10
29
12
13
25
24
26 № 23
new
28 29
27
new
30
33
32a № 30
31
32
30
34
42
46
43
new
№ 44
41
44
45
39
40
35
38
37
36
31
47
48
№ 46
52
51
49
50
new
55a
56
53 41-52
55
54
32
56a
67a
65 64
64
60-62
63 63
67 66
62
60
№ 57
57
61
58
33
59
68a
68
69
70 71
72
№ 69
76a
73
α
α
α
α
76 74
№
75
73
77
34
86
№ 80
85
89
84 87
83
88
82
new
81 79
80
№ 77
78
35
87-89
90
95
91 92
93
94
91-95
100
96
model complete
99
97 98
36
shape the model
Task №5
Sky Scraper Kusudama Usman Rosyidhi (Indonesia)
Difficulty: *****_ _ _ _ _ Paper: 50-60 g/m
2
Paper size: 10-10 cm
3
2
4
5
Number of units: 30 Max score: 5 points
8
7
6
37
9
1
join 1 more u nit
16 tc om pl et e
15
un i
17
jo
in
1
14
13
10
11-12
12
11
38
m or
e
un i
t
join 2 mor e units
19 18
jo
in
5
m or
e
un i
ts
18
20
21
model complete
join the rest of the units
39
Task №6
White Deer With Red Scarf Pei Haozheng (China)
Difficulty: *********_ Paper: 30-40 g/m 2 Paper size: 60-60 cm
36
Max score: 9 points
Crease Pattern
40
8
7
36-36 grid complete
10
6 5
1
12
9
11
divide the grid parts into half as shown
4
2
3
41
13
Step 1
13a
14
Step 2
14a
42
15a
red scarf
16
left antler
17
right antler
model complete shape the model
15
Step 3
fold the existing area as shown
43
Task №7
Graphene
Ryoichi Takagi (Japan)
Difficulty: ******_ _ _ _ 2
Paper: 40-50 g/m Hexagon size: 18 cm
Cr
ea se
Pa tte r
n
16
Max score: 6 points
44
Needles
Task №8
Andrey Ermakov (Russia)
Difficulty: *******_ _ _ Paper: 40-50 g/m
2
Hexagon size: 18 cm
Cr
ea se
Pa tte r
n
16
Max score: 7 points
45
1
2
cut a rectangle (>5:4)
3 4
8
5
cut a hexagon
6
7
46
14
for further work please use the CP from the first diagram page
CP he es t lin of ses grid a r e he gc nt n i o iss ed t m a e th e loc ar
13
te
el
od m
cr e
as e
as sh ow
te
n
id gr
is
c
ple om
12
9
11 10
47
c
ple om
Task №9
Star Twist Tess Fu Wei (China)
Difficulty: *******_ _ _ Paper: 40-50 g/m
2
Hexagon size: 20 cm
Cr
ea se
Pa tte r
n
18
Max score: 7 points
48
1
2
3
4
5
8
7
6
49
17
19 18
16
5
14
15
9
4
13
11 10
12
50
20
21 14-18
5 4
4
22
5
23 24
14-18
26
CP he es t lin of es grid s a r e he gc nt n i o iss m ated e c th e lo ar
25
model complete
cr e
as e
for further work please use the CP from the first diagram page
as sh ow
te
n
id gr
is
c
ple om
51
Fanfold
Task №10
Elke Muche (Germany)
Difficulty: *****_ _ _ _ _ Paper: 70-80 g/m
2
Rectangle size: 10cm-80cm+ Max score: 5 points
1 2
4 3 repeat steps 2-3 three times
5 6
52
extra
12
11
10
9
8
7
cut a rectangle as shown
53
№2
13
14
shape as shown
15
16
17
54
21a
push the top of cylinder down and create a disk
22
21
lc
20
to glue the edges and fold as shown
e od m
e et l p om
make creases as shown
19
18
55
Forest
Task №11
Maximum score: 10 points In this task we suggest you create your own model. You can choose any subject if it matches the theme. As usual, we propose a very broad topic allowing you to demonstrate your folding and designing skills. The model can be created in any style, technique and complexity level. You just have to follow the ground rules:
For e
st
- the model has to be created specifically for this Olympiad; - one convex polygon sheet of paper (e.g. square, rectangle, triangle, pentagon, thhexagon etc); - no cuts; - any color, size, type of paper etc; - you can use MC+paper, foil-paper, wet-folding as well; - no painting or varnishing of the finished model (you still can paint the paper thbefore you start folding); - minimal editing of the pictures is allowed as long as it doesn't affect the thappearance of the model. (e.g. you can crop photos, reduce the noise, change thcolor balance but you must not add, erase or change any details); - you can make a composition photo with as many different models as you thlike, but only one of them will be judged (you must specify which one); - you must include CP and other information about your model so the jury can thsee that the rules have been observed; - multi-piece or modular designs will not be taken into account.
* This task is clearly very different from the others. We believe that at some point
experienced origami folders inevitably start creating their own models. Most of them just need some confidence boost to start believing in their talents. Inspiring new designers has always been one of our main goals and we are proud to see many contestants becoming well-known origami artists. As for the choice of subject, we are greatly concerned about environmental issues including deforestation. And while we urge not to waste natural resourses, we think origami is the best thing that can happen to paper. So let's use it to create something beautiful.
Good Luck! 56
The End
Saint Petersburg 2018 57
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