I have a sequence of integers representing dice in F#.

In the game in question, the player has a pool of dice and can choose to play one (governed by certain rules) and keep the rest.

If, for example, a player rolls a 6, 6 and a 4 and decides to play one the sixes, is there a simple way to return a sequence with only one 6 removed?

Seq.filter (fun x -> x != 6) dice

removes all of the sixes, not just one.