Everyone guesses a number (could be sequentially or simultaneously, but duplicate guesses are allowed).
Anyone who guessed the correct value in the previous step wins.
If no guesses were exactly correct, everyone guesses a new number and repeat until one or more players guess correctly.
This only works for reasonably small discrete ranges. For continuous or very large ranges, modify step 2 so that anyone who guesses within some distance of the true value wins.
Everyone guesses a number (could be sequentially or simultaneously, but duplicate guesses are allowed).
Anyone who guessed the correct value in the previous step wins.
If no guesses were exactly correct, everyone guesses a new number and repeat until one or more players guess correctly.
This only works for reasonably small discrete ranges. For continuous or very large ranges, modify step 2 so that anyone who guesses within some distance of the true value wins.