Buzzer Game With Reset Answered

I would like some help with this circuit.

Description:

It's like a regular electric circuit Buzzer game but with a no cheating reset option.

1. One must go from A to B to light L.
2. When you start (A) a green led turns on (G)
3. If you touch X, the buzzer sounds (S) an a red led (R) turns on, at this time (G) turns off. This means you have to restart from A
4. this must be powered by a 9V or 12V battery