Fifteen (Code Works)

In this game from Glen Fisher and Paul Barnett, published in 1983 in multiple releases, including Cursor/64 #1, Cursor/64 #2, and also in Scandinavien PD #04, you must arrange the 15 pieces in numerical order using as few moves as possible. F and S swaps fast and slow speeds, Q to quit if you've had enough. Like golf, lowest score wins!