Deduplicate - count animal body parts

[hobovsky]

From #39

1. Heads and Legs

• 8 kyu
• Only two animals to count. Possible inputs with no solutions.
• Satisfaction 87% with 6k completions
• 1 pending issue
• 9 languages, no pending translations
• Published May 2016, author inactive

2. Jungerstein's Math Training Room: 2. How many bugs?

• 7 kyu
• Three animals to count, possible inputs with no valid answer.
• Satisfaction 80% with 130 completions
• No pending issues
• Python only
• Published March 2017, author inactive

3. Help the farmer to count rabbits, chickens and cows

• 7 kyu
• Three animals to count, all inputs result in a valid solution.
• Satisfaction 93% with 220+ completions
• 2 pending issues
• 2 languages, no pending translations
• Published Nov 2017, author inactive

[hobovsky]

I am not sure which one to retire:

• Kata 1. has the most languages, and maybe is easier than the other two. However, I am not sure I like its 8 kyu rank, and I dislike its design (mixed output types).
• Kata 2. seems to be the least attractive: only one language, the least completions. Maybe the required handling of pairs of wings could cause confusion among users. The handling of "no valid solution" requirement is not great, but I actually like how some seemingly valid inputs might have no solution. I also like it the most because it has spiders, and I think it's more challenging than 3. when solved on paper.
• Kata 3. is very close to 2., but has one more language and better satisfaction.

Any ideas?

[ejini6969]

Another approach would be to make a completely new kata that incorporates 3 or more animals with possibility of having no solution, in addition to having only 1 output type or exception handling for invalid cases !

This is my first preference, though if most votes lean on keeping one of them, I would vote to retire 3 as its output type in the form of a dict is weird plus being similar to 2. (no opinion on keeping 1 / 2)

[CiprianAmza]

I would keep 2, as it is very interesting and more difficult than expected (I am not sure if 7 kyu is the correct rank for it, 6 kyu would be more appropriate) and 1 (as an easier version of 2).

[Madjosz]

Since I just fixed 2. without knowing of this deduplication I vote to keep it out of pure egoism.

[EloiseRosen]

vote to keep 1 and 2, retire 3

[KayleighWasTaken]

Vote to keep 2, retire 1 and 3.

Reasoning:
1 has mixed return types which is, to be honest, an abomination.
3 is a subset of 2.

[djsmacker01]

vote to keep 1 and 2, retire 3