A/D selects a digit, W/S turns it, and RETURN tests the code. EXACT counts correct digits in correct positions. NEAR counts correct digits in other positions.
Directions work on the keyboard or pad; the pad button also acts as RETURN. SPACE opens confirmation to restart this stage. NO is selected initially. Choose with A/D, confirm with RETURN, or cancel with SPACE. Play pauses during confirmation. CTRL+C returns to BASIC.
Four dials turn and the verdict proceeds one digit at a time. When all digits match, the safe door opens through three widths, followed by unlocking sound, light, and a jingle. Wait for animations to finish before pressing again.
The six most recent guesses and responses remain visible. A secret digit is never counted twice. Choose guesses that reduce the remaining possibilities while conserving attempts.
