Moonstone 1 entered the Intel 88 hill in March 1993 and survived 207 challenges before being pushed off in April.

;redcode
;name Moonstone 1
;author Dan Nabutovsky
;strategy bomb, then coreclear, then JMP 0,<-15

	MOV 7, <-7
incr:	MOV 7, <-7
start:	SPL 0
loop:	MOV <75, -74
	ADD incr, loop
	DJN loop, <4400
	JMN -1, 303
	JMP 0, <-15

	END start