Such a simple and great idea. Not sure if "Repeating numbers" scenario is error you want to prevent that tactic from players. I wanted to start from "1111".
The game doesn't allow for repeating numbers. My thinking is that not allowing it makes it much easier to pinpoint the numbers. If I think a number exists, it would reduce the number of combinations and the game time.
Fastest for me was (Skill wise) 13 tries and 1 min 40 sec.
First time was beginner's luck and got 2 dead 2 injured and that got solved in less time and tries, but that was purely a lucky guess.
I've spent upwards of 5 min and 50+ tries as well in some of them but that's because I kept loosing the track of which one's are dead.
Haven't played enough yet... but average tries are 15-19 ranges avg time for me is 1.40-3.40 ranges.
Still not sure on strategy, but I am doing brute force here twice.
First I get a combination that has nothing (in my head I call that combination as "Bad Ambulance") which will find injured and make them dead.
I will gladly spend my time on this.
Loved it.. 10/10
Edit :- Bad Ambulance totally works, 10 tries 1 min 20sec.