This is only a raw version. More and nicer graphics should be on line soon.
Level 1 has been solved 5 times and requires ,at least, 1 reaction(s).
Level 2 has been solved 5 times and requires ,at least, 1 reaction(s).
Level 3 has been solved 5 times and requires ,at least, 1 reaction(s).
Level 4 has been solved 8 times and requires ,at least, 1 reaction(s).
Level 5 has been solved 5 times and requires ,at least, 2 reaction(s).
Level 6 has been solved 3 times and requires ,at least, 5 reaction(s).
Level 7 has been solved 4 times and requires ,at least, 1 reaction(s).
Level 8 has been solved 5 times and requires ,at least, 1 reaction(s).
Level 9 has been solved 4 times and requires ,at least, 1 reaction(s).
Level 10 has been solved 5 times and requires ,at least, 2 reaction(s).
Level 11 has been solved 4 times and requires ,at least, 1 reaction(s).
Level 12 has been solved 7 times and requires ,at least, 2 reaction(s).
Level 13 has been solved 3 times and requires ,at least, 3 reaction(s).
Level 14 has been solved 1 times and requires ,at least, 2 reaction(s).
Level 15 has been solved 1 times and requires ,at least, 14 reaction(s).
Level 16 has been solved 1 times and requires ,at least, 4 reaction(s).
Level 17 has been solved 1 times and requires ,at least, 20 reaction(s).
Level 18 has been solved 2 times and requires ,at least, 10 reaction(s).
Level 19 hasn't been solved yet.