Carmilla is a scanning/bombing vampire which entered KOTH.org's 94nop hill on 30th October 2014 and survived 140 challenges before being pushed off on 25th February 2015. Carmilla also entered the KOTH 94 hill where it has reached age 60+.

;redcode-94nop
;name Carmilla
;author inversed
;strategy One-hit scanning vampire
;assert CORESIZE==8000

; Defensive techniques employed:
; - Anti-trace:  fangs point to the pit indirectly,  making
;   it less vulnerable to { or } bombing.
; - Spl instead of jmp to clear, leaving one process in the
;   djn stream. If the clear is destroyed, there is still a
;   chance of a draw.

step    equ     5851
time    equ     471
phaze   equ     step*time
dtrace  equ     2*step

safe    equ     16
djs     equ     -1
zclear  equ     (pit-cptr-2)
cptr    equ     (bptr-5)

gap1    equ     3
gap2    equ     7
gap3    equ     71

org     start

bptr    dat       0     ,     safe
cs0     spl     # djs   ,     zclear
clear   mov     @ cref  ,   > cptr
        mov     @ cref  ,   > cptr
cref    djn       clear ,   { cs0

        for       gap1
        dat       0     ,     0
        rof

loop    add       inc   ,     ptr
        mov       ptr   ,   @ ptr
        jmz.f     loop  ,   * ptr
        mov       ptr   ,   * ptr
        mov.x     ptr   ,   * ptr
        jmz.f     loop  ,     pit
        spl       cs0   ,   < cptr
inc     djn.f   #-step  ,   < step

        for       gap2
        dat       0     ,     0
        rof

ptr     jmp     @ phaze ,     pit+dtrace-phaze
pit     djn     # 0     ,   # 0

        for       gap3
        dat       0     ,     0
        rof

atrace  jmp     @ 0     ,    -dtrace
start   mov       atrace,   > setup
        mov       atrace,   @ setup
setup   jmp       loop+1,   < pit+dtrace