Task Difficulty Rankings
General Information
Difficulty Ranking
This ranking features the most challenging models used in IOIO olympiads, completed by the fewest participants. This ranking emphasizes the uniqueness and technical complexity of the models, which have become a true test for origami artists, requiring the highest degree of technical skill and patience.
The models included in the ranking can be particularly appealing during preparations for future origami competitions, allowing participants to learn from examples of complex models and be ready for tasks of any difficulty.
Scoring System
The difficulty of the models in this ranking is assessed based on the percentage ratio of the number of participants who completed the task to those who did not.
For example, when 23% of participants completed the task.
The completion rate corresponds to (100% - 23%)/10 = 7.7 points.
This section will be updated as new olympiads are held.
1 place. «Lotus Flowers»
Author: Ryoichi Takagi
Completed: 5% participants
Difficulty: 9.5
2 place. «Butterfly»
Author: Andrey Ermakov
Completed: 5% participants
Difficulty: 9.5
3 place. «Tournesols»
Author: Ryoichi Takagi
Completed: 8% participants
Difficulty: 9.2
4 place. «Spider-human»
Author: Ivan Danny Handoko
Completed: 8% participants
Difficulty: 9.2
5 place. «Glaucus atlanticus»
Author: Andrey Ermakov
Completed: 8% participants
Difficulty: 9.2
6 place. «Bowl of Hygieia»
Author: Andrey Ermakov
Completed: 9% participants
Difficulty: 9.1
7 place. «Lily Beetle»
Author: Damian Malicki
Completed: 10% participants
Difficulty: 9
8 place. «Iso Area Cross Pattee Tessellation»
Author: Daniel Kwan
Completed: 10% participants
Difficulty: 9
9 place. «Crow»
Author: Andrey Ermakov
Completed: 11% participants
Difficulty: 8.9
10 place. «Merlion 3.0»
Author: Andrey Ermakov
Completed: 12% participants
Difficulty: 8.8
11 place. «Scorpion»
Author: Artur Biernacki
Completed: 12% participants
Difficulty: 8.8
12 place. «Cubes»
Author: Peter Keller
Completed: 12% participants
Difficulty: 8.8
13 place. «Hispa Arta»
Author: Andrey Ermakov
Completed: 13% participants
Difficulty: 8.7
14 place. «Hat»
Author: Andrey Ermakov
Completed: 14% participants
Difficulty: 8.6
15 place. «Moth»
Author: Andrey Ermakov
Completed: 14% participants
Difficulty: 8.6
16 place. «Iso Area Square Pattern 12»
Author: Daniel Kwan
Completed: 15% participants
Difficulty: 8.5
17 place. «Circular Saw Blade»
Author: Ryoichi Takagi
Completed: 16% participants
Difficulty: 8.4
18 place. «Accidental Pseudo Flagstone»
Author: Daniel Kwan
Completed: 17% participants
Difficulty: 8.3
19 place. «The King and the Jester»
Author: Dmitry Lysiuk
Completed: 18% participants
Difficulty: 8.2
20 place. «Emergent Hexagons»
Author: Madonna Yoder
Completed: 18% participants
Difficulty: 8.2
21 place. «TBD»
Author: Hongyan Zhang
Completed: 18% participants
Difficulty: 8.2
22 place. «Mr. Rabbit»
Author: Nicolas Gajardo Henriquez
Completed: 18% participants
Difficulty: 8.2
23 place. «Stock bull»
Author: Andrey Ermakov
Completed: 18% participants
Difficulty: 8.2
24 place. «Shadow of IOIO-2016»
Author: Liang Xing
Completed: 18% participants
Difficulty: 8.2
25 place. «Waffles»
Author: Madonna Yoder
Completed: 19% participants
Difficulty: 8.1
26 place. «Triangle Tess Pattern»
Author: Daniel Kwan
Completed: 20% participants
Difficulty: 8
27 place. «La Corona»
Author: Peter Keller
Completed: 20% participants
Difficulty: 8
28 place. «Turtle»
Author: Turtle (ver. A.Ermakov)
Completed: 20% participants
Difficulty: 8
29 place. «Flamingo»
Author: Yasushi Miyashita
Completed: 20% participants
Difficulty: 8
30 place. «Dragonfly»
Author: Andrey Ermakov
Completed: 20% participants
Difficulty: 8
31 place. «Ruota Idraulica»
Author: Peter Keller
Completed: 21% participants
Difficulty: 7.9
32 place. «Rosa Odorata»
Author: Ryoichi Takagi
Completed: 21% participants
Difficulty: 7.9
33 place. «Jumping Spider»
Author: Nguyen Ngoc Thanh
Completed: 21% participants
Difficulty: 7.9
34 place. «Spider»
Author: Yasushi Miyashita
Completed: 21% participants
Difficulty: 7.9
35 place. «Shoes op.84»
Author: Andrey Ermakov
Completed: 22% participants
Difficulty: 7.8
36 place. «Twister»
Author: Ryoichi Takagi
Completed: 22% participants
Difficulty: 7.8
37 place. «Seven Sisters»
Author: Peter Keller
Completed: 23% participants
Difficulty: 7.7
38 place. «Open Shuriken Stars»
Author: Simon Marynissen
Completed: 23% participants
Difficulty: 7.7
39 place. «Rooster»
Author: Andrey Ermakov
Completed: 24% participants
Difficulty: 7.6
40 place. «Evangeline Kusudama»
Author: Xander Perrott
Completed: 24% participants
Difficulty: 7.6
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