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> Home > The Corewar Newsletters > Core Warrior > Issue #1

Issue 23                                                       April  1, 1996
______________________________________________________________________________
Greetings.
Core Warrior is a weekly newsletter promoting the game of corewar.  Emphasis
is placed on the most active hills--currently the '94 draft hill and the
beginner hill.  Coverage will follow where ever the action is.  If you have
no clue what I'm talking about then check out these five-star internet locals
for more information:

FAQs are available by anonymous FTP from rtfm.mit.edu as
pub/usenet/news.answers/games/corewar-faq.Z
FTP site is: ftp.csua.berkeley.edu /pub/corewar
Web pages are at:
http://www.stormking.com/~koth                  ;Stormking
http://www.ecst.csuchico.edu/~pizza/koth        ;Pizza
http://pauillac.inria.fr/~doligez/corewar/      ;Planar

Newbies should check the stormking page for the FAQ, language specification,
guides, and tutorials.  Post questions to rec.games.corewar.  All new players
are infinitely welcome!

If ftp.csua.berkeley.edu is still out of service, you can download Pmars at
Terry's web page--http://www.infi.net/~wtnewton/corewar/
______________________________________________________________________________
Greetings.

Greetings to all and good first of April, I hope you enjoyed our little joke.
This was a quiet week, but 90 challenges and no important warrior pushed
off; even if the turnover has been high most charges have been new versions
of existing warriors. Just a bit of relax for the spring, or something
burning under the ashes.
Planar's corner is back this week, we hope he will continue working for us.
Anyone wanting to pupblish an article or write his own number is welcome.

--Beppe Bezzi

P.S. I changed my mail address; new one is: bezzi@nemo.it
I still have the old one, but it will be checked less often.
______________________________________________________________________________
Current Status of the Internet Pizza Server ICWS '94 Draft Hill:

Hill Specs:
         coresize: 8000
   max. processes: 8000
         duration: after 80,000 cycles, a tie is declared.
max. entry length: 100
 minimum distance: 100
    rounds fought: 200
  instruction set: ICWS '94 Draft

 #  %W/ %L/ %T                      Name               Author   Score     Age
 1  47/ 32/ 21          Gem of the Ocean              P.Kline     162       3
 2  48/ 40/ 12              Naked dancer          Beppe Bezzi     156      55
 3  41/ 34/ 25               Thermite II        Robert Macrae     147    1105
 4  41/ 34/ 26                     prova    Maurizio Vittuari     147      81
 5  41/ 35/ 24                 Chameleon           M R Bremer     147     576
 6  41/ 37/ 22      Grilled Octopus v0.5         David Boeren     146     321
 7  34/ 25/ 41                   Barrage        Anton Marsden     144     578
 8  43/ 41/ 16            Stepping Stone          Kurt Franke     144     446
 9  43/ 43/ 14             Frontwards v2       Steven Morrell     143    1357
10  39/ 35/ 26                    T.N.T.    Maurizio Vittuari     143     830
11  37/ 32/ 31        A Hard Day's Night    Maurizio Vittuari     142      67
12  37/ 32/ 31               Tornado 3.0                Beppe     142     906
13  36/ 30/ 35                    Flurry        Anton Marsden     142      66
14  27/ 15/ 58             Hazy Shade II             John K W     140      64
15  41/ 42/ 17          Wind-up Toy v0.4          Ian Oversby     139      21
16  23/  9/ 68              Evol Cap 6.6       John Wilkinson     138    1119
17  43/ 49/  8                  Memories          Beppe Bezzi     137     498
18  34/ 32/ 34                   Lithium     John K Wilkinson     137     112
19  27/ 18/ 54            Impfinity v4g1               Planar     137    1304
20  40/ 43/ 17                   Error 0               Planar     136      38
21  38/ 41/ 20                Sloth v0.4          Ian Oversby     135      94
22  30/ 25/ 46                  Hector 3          Kurt Franke     134     109
23  38/ 42/ 20             myConfuser2.1             Paulsson     134      16
24  32/ 31/ 37               Blue Funk 5       Steven Morrell     134     249
25  29/ 34/ 38               tripod v1.3         Brian Haskin     124       1

Weekly age: 91
New warriors 10  Turnover/age rate 11%
Average age: 401 ( 350 last week, 333 the week before )
Average score: 141 ( 142 last week, 142 the week before )
The top 25 warriors are represented by 14 authors; welcome to Ian and Brian

The age of the Octopus seems to be over; Paul Kline, with his new version of
Gem of the Ocean, has managed to reach n. 1 spot, the only one making him
feel confortable; and this with but 33 submissions this week. 
Will now David refurbish the Octopus, submitting v04 to claim again top
spot, or let it age toward the hall of fame?

Beppe's Naked Dancer, and Grilled Octopus, are the only other warrior to
have been in top position.

After past weeks carnage, no aged warrior, not even mid aged, left us; all
millenaries seem to be in good health, even if Thermite has been for a while
in the red zone, under 20th position, to rebounce quickly up.

Planar, after a long silence, has submitted a new warrior. Next week,
perhaps, we'll see in these columns what our archiver is doing.

Bombers and P-spacers are sharing the top positions, while scanners are
having bad times and replicator near extinction, with but Barrage an Hector
to represent them on the hill.

The scores are very balanced, there are but 13 points beetween n 3 and n.
24, should a new warrior enter in mid hill none will feel safe. Maybe next
week we'll see some movement again

______________________________________________________________________________
94 - What's New

 #  %W/ %L/ %T                      Name               Author   Score     Age
 7  37/ 36/ 27                     prova    Maurizio Vittuari     138       1
15  33/ 33/ 33        A Hard Day's Night    Maurizio Vittuari     133       1
19  30/ 30/ 40                    Flurry        Anton Marsden     130       1
 4  25/ 15/ 60             Hazy Shade II             John K W     136       1
10  41/ 44/ 15              Naked dancer          Beppe Bezzi     137       1
20  37/ 45/ 17                   Error 0               Planar     129       1
23  36/ 44/ 20             myConfuser2.1             Paulsson     127       1
 1  45/ 34/ 21          Gem of the Ocean              P.Kline     156       1
25  27/ 35/ 38               tripod v1.3         Brian Haskin     119       1

New versions of: Gem of the Ocean, Naked dancer, prova, Flurry, A Hard day's
Night, Hazy Shade II.
______________________________________________________________________________
94 - What's No More.

 #  %W/ %L/ %T                      Name               Author   Score     Age
26  10/ 12/  5          Gem of the Ocean              P.Kline      35      66
26  37/ 48/ 15                     Pagan             John K W     127      27
26   1/  1/  2                    Flurry        Anton Marsden       6      13
26   3/  1/  0          Gem of the Ocean              P.Kline       9      16
26   2/  1/  1                     prova    Maurizio Vittuari       6      24
26   2/  1/  1        A Hard Day's Night    Maurizio Vittuari       6      24
26   0/  0/  3             Hazy Shade II             John K W       4      64
26  29/ 37/ 34             Clueless v0.4          Ian Oversby     122      34
26   2/  2/  0              Naked dancer          Beppe Bezzi       6      85
26  30/ 43/ 27                Spook v0.1          Ian Oversby     116      16
26   3/  0/  0             myConfuser2.0             Paulsson       9      42
______________________________________________________________________________
94 - What's Old

 #  %W/ %L/ %T                      Name               Author   Score     Age
 9  43/ 43/ 14             Frontwards v2       Steven Morrell     143    1357
19  27/ 18/ 54            Impfinity v4g1               Planar     137    1304
16  23/  9/ 68              Evol Cap 6.6       John Wilkinson     138    1119
 3  41/ 34/ 25               Thermite II        Robert Macrae     147    1105
12  37/ 32/ 31               Tornado 3.0                Beppe     142     906
10  39/ 35/ 26                    T.N.T.    Maurizio Vittuari     143     830
 7  34/ 25/ 41                   Barrage        Anton Marsden     144     578
 5  41/ 35/ 24                 Chameleon           M R Bremer     147     576
17  43/ 49/  8                  Memories          Beppe Bezzi     137     498
 8  43/ 41/ 16            Stepping Stone          Kurt Franke     144     446
 6  41/ 37/ 22      Grilled Octopus v0.5         David Boeren     146     321
24  32/ 31/ 37               Blue Funk 5       Steven Morrell     134     249
______________________________________________________________________________
HALL OF FAME
* means the warrior is still running.

Pos    Name                  Author          Age     Strategy
 1  Jack in the box        Beppe Bezzi       1620    P-warrior
 2  Torch t18              P.Kline           1539    Bomber
 3  Frontwards v2          Steven Morrell    1357 *  One shot scanner
 4  Impfinity v4g1         Planar            1304 *  Stone/ imp
 5  quiz                   Schitzo           1262    Scanner/ bomber
 6  Evol Cap 6.6           John Wilkinson    1119 *  Imp / stone
 7  Thermite II            Robert Macrae     1105 *  Qscan -> bomber
 8  Iron Gate 1.5          Wayne Sheppard     926    CMP scanner
 9  Agony II               Stefan Strack      912    CMP scanner
10  Tornado 3.0            Beppe Bezzi        906 *  Bomber
11  Blue Funk              Steven Morrell     869    Stone/ imp
12  T.N.T.                 Maurizio Vittuari  830 *  Bomber
13  Thermite 1.0           Robert Macrae      802    Qscan -> bomber
14  Blue Funk 3            Steven Morrell     766    Stone/ imp
14  Night Train            Karl Lewin         755    Replicator
16  Mirage 1.5             Anton Marsden      736    Scanner/ bomber
17  Blizzard               Anton Marsden      713    Qscan -> replicator
18  HeremScimitar          A.Ivner,P.Kline    666    Bomber
19  La Bomba               Beppe Bezzi        650    Qscan -> replicator
20  myVamp v3.7            Paulsson           643    Vampire
21  Hazy Shade Of Winter   John Wilkinson     616    P-warrior
22  Armory - A5            John Wilkinson     609    P-warrior
23  juliet and paper       Bremer & Bezzi     607    P-warrior
24  Phq                    Maurizio Vittuari  589    Qscan -> replicator
25  Barrage                Anton Marsden      578    Qscan -> replicator

Frontwards and Impfinity are quickly approaching Torch, both passing 1300
milestone; Tornado should enter the over 1000 club next week if, crossing
fingers, it survives.
Barrage enters in the last spot, pushing Hector 2 off. Chameleon is
scheduled for next week being at 576 age.
______________________________________________________________________________
Current Status of the Internet Pizza Server Beginner's Hill:

Hill Specs:
         coresize: 8000
   max. processes: 8000
         duration: after 80,000 cycles, a tie is declared.
max. entry length: 100
 minimum distance: 100
      maximum age: At age 100, warriors are retired.
    rounds fought: 200
  instruction set: ICWS '94 Draft

 #  %W/ %L/ %T                      Name               Author   Score     Age
 1  55/ 34/ 11        Violent Micro v0.2             basehead     177      58
 2  45/ 16/ 39        Vectorfantasy v0.2             basehead     173      59
 3  48/ 37/ 14        Living Let Die III               Julian     159       3
 4  50/ 41/  9          C-Seagal II Test             jShelton     158      97
 5  50/ 42/  8                   GPT 15l        David van Dam     157      96
 6  42/ 27/ 31           Obvious Thief.2        John K. Lewis     157      84
 7  49/ 41/ 10                   Machido             jShelton     157      33
 8  48/ 43/  9               Goliath 0.3        David van Dam     154      53
 9  41/ 29/ 30          Hyakutake Zenith         Scott Manley     152      70
10  41/ 31/ 28          Bag of Tricks II       Andy Nevermind     152      30
11  47/ 42/ 11            Revision Three       Andy Nevermind     151      93
12  47/ 44/  9                   GPT 18a        David van Dam     150      14
13  43/ 36/ 21               Ineffectual          Ian Oversby     149       5
14  43/ 41/ 16                   GPT 09k        David van Dam     145      89
15  44/ 47/  8           bloodstone V2.0       bjoern guenzel     142      15
16  42/ 44/ 14         Extreme Prejudice         Scott Manley     141      91
17  33/ 28/ 38          AB Scanner 2.9.6         Chris Hodson     138      38
18  40/ 47/ 13          Optma Dwarf v5.1              Phoenix     133      19
19  36/ 40/ 23          Three Core Monty        Andrew Fabbro     132      50
20  36/ 42/ 23             Testing V1.21       bjoern guenzel     130       4
21  29/ 30/ 41                   Unknown        John K. Lewis     127      83
22  35/ 53/ 12          Optma Dwarf v5.0              Phoenix     118      21
23  27/ 62/ 11          MissleCommand_v2             harleyQ2      91       2
24  14/ 56/ 30               djn monster       bjoern guenzel      73       7
25   8/ 67/ 25                    babyQ2             harleyQ2      50       1

Jack in the box is dead of old age today, this means that the beginners hill
is aged exactly 100 in last two weeks; don't worry, you won't see Jack anymore.

Basehead is dominating the hill with a couple of warriors seen in the pro
hill for a while, Julian and jShelton too did the 94 hill for short periods.
______________________________________________________________________________
Stormking 94x hill standings.

We had some movement in this hill in the past weeks, so we report hill
standings.

Hill Specs:
           redcode 94x
         coresize: 55440
   max. processes: 55440
         duration: after 500,000 cycles, a tie is declared.
max. entry length: 200
 minimum distance: 200
    rounds fought: 250
  instruction set: ICWS '94 Draft

Last battle concluded at : Mon Mar 25 21:13:40 EST 1996
 
 #  %W/ %L/ %T                      Name               Author   Score     Age
 1  35/  3/ 62              Evol Cap 4 X       John Wilkinson     166      19
 2  48/ 40/ 12            Illusion-94/55         Randy Graham     156       1
 3  47/ 39/ 13             Frontwards v2       Steven Morrell     156      49
 4  46/ 38/ 15        Stepping Stone 94x          Kurt Franke     154       5
 5  42/ 32/ 27               Lithium X 8     John K Wilkinson     152      10
 6  46/ 41/ 13                  Memories          Beppe Bezzi     151      26
 7  43/ 38/ 18                  Derision           M R Bremer     148      36
 8  41/ 35/ 24                    BigBoy        Robert Macrae     146      44
 9  43/ 44/ 13                     Pagan             John K W     143       4
10  38/ 34/ 27                 Lithium X     John K Wilkinson     142      17
11  39/ 35/ 26             Tornado 2.0 x          Beppe Bezzi     142      43
12  39/ 39/ 21           Fire Master Xv1            JS Pulido     140      41
13  31/ 26/ 44                  Hector 2          Kurt Franke     136      39
14  42/ 48/ 10              S.E.T.I. 4-X                  JKW     135      20
15  30/ 26/ 44                   Aleph 1              Jay Han     135       9
16  38/ 47/ 16                 Watcher-h          Kurt Franke     128      38
17  36/ 44/ 20                 impthingX          Kurt Franke     128       3
18  37/ 46/ 17                   Watcher          Kurt Franke     127      42
19  31/ 39/ 30                  Nice Try           M R Bremer     122      48
20  37/ 53/ 10        Withershins Thrice              P.Kline     120       2

The big hill uses the same redcode as 94 hill. Strategies are a bit
different, seems that imps are more powerful and qscan are obviously less
dangerous, but there is a lot to discover here.
Tuc has implemented many interesting features, send a mail to
koth@stormking.com with body of  ' help ' (no quotes) to get them.
______________________________________________________________________________
The Hint
by Beppe Bezzi
---
A collection of my hints in previous numbers of CW is available at
 ftp.csua.berkeley.edu/pub/corewar/documents/bbhints.zip
---
Wilkinson's beginners benchmark.

J K Wilkinson posted to the newsgroup his beginner's benchmark, a collection
of warriors ,good for beginners to test their warriors against. Steve Bailey
asked me for some comments on them and here they are.


;name  Blue Funk 3
;author Steven Morrell
;strategy  Fixed another in-memory/in-register bug

The strategy line doesn't explain a lo about what the warriors does, unless
you know Blue Funk and Kline's Emerald, but a little testing can easily show
that Blue Funk 3 is a classic stone with a binary launched imp spiral.
The most interesting property of the stone is the self modifying bombing
pattern; in practice BF3, after completing its modulo 4 bomb run shifts the
pattern and repeat it displaced, going to bomb the whole core. To better see
it, try running BF3 after changing the 'spl i' line in a dat, so
deactivating the spiral.

;name Cannonade
;author P.Kline, Paul Kline, pk6811s@acad.drake.edu
;strategy break gates, score points
;strategy stone and gate-busting imp-spiral(s)

Cannonade is worth mention mainly for the stone structure, well described by
S. Morrell in its book, and for the gate busting imps, descibed in Morrell's
manual too. Cannonade relies more on the imps for attack than on the stone,
using it, with a wide mod 10 pattern, to kill scanners and provide a core
clear. Unfortunaltely, for it, 94 redcode allows forward clears and
increment gates, and Cannonade's imps are unable to crash them; it's still a
powerful opponent in 88 redcode.

;name Fire Storm v1.1
;author W. Mintardjo
;strategy Stone with anti-imp core clear

Firestorm is another stone, worth mention as a way to implement a two pass
clear in 88 redcode. To see it trace the 'ptr' line and look how the clear
pointers self modify.

;name Marcia Trionfale 1.3
;author Beppe Bezzi
;strategy attemping a more aggressive behaviour

That's the version of Marcia Trionfale I used in last winter tournament,
together with Tornado, but using more processes, it's half Jack in the Box.
Marcia Trionfale is a very aggressive silk replicator, very good against
stone imps like Blue Funk and Juliet storm, but vulnerable to scanners.

;name nobody special
;author Mike Nonemacher
;strategy Paper like TimeScape, but with lots more
;strategy core-trashing, anti-imping, etc.

nobody special is another silk replicator, relative of Timescape. It's less
aggressive than Marcia Trionfale, but more than Timescape. Interesting how
the add instruction, together with the bombing mov in the other body,
creates a non-carpet bombing.

;name Paperone
;author Beppe Bezzi
;strategy Silk replicator

Paperone is my first warrior to make 94 hill, it's nothing more than Jippo's
Silk Warrior with different constants.

;name TimeScape (1.0)
;author J. Pohjalainen
;assert CORESIZE==8000
;strategy I'm stuck with replicators! Here is _The Latest_ one!
;strategy \---------------------------\  ----------------------
;strategy / ts1  spl    @ts1,  }STEP1 /  Phoenix/Cell   warrior  
;strategy \      mov.i  }ts1,  >ts1   \  body,  6+ processes to 
;strategy / ts2  spl    @ts2,  }STEP2 /  keep That Thing alive,
;strategy \      mov.i  }ts2,  >ts2   \  two  of  them  working   
;strategy /      mov.i  {ts2,  <ts3   /  together  with  proper  
;strategy \ ts3  jmp    @ts3,  }STEP3 \  constants and you have
;strategy /___________________________/  found >>--> TimeScape!   
;strategy \T I M E   T O   E S C A P E\  ----------------------
;strategy v1.0: added more havoc in above code  (or I hope so!)

Timescape is the father of modern replicators. With very few exceptions, all
use its structure. For a better discussion on silk replicators see Core
Warrior 1 and 3

;name Iron Gate
;author Wayne Sheppard
;strategy cmp scanner-SPL/JMP-Gate

Iron gate is a classic 88 redcode cmp scanner, using spl 0 /jmp -1 stun
bombs. Worth notice are the compact code and the decrement protection. For a
better discussion on Iron Gate and cmp scanners see my hint in Core Warrior 19

;name Porch Swing
;Author Randy Graham
;strategy Swing with a little wider range.
;strategy Now 80% bomb/scan with djn-stream once-thru

Porch Swing is the warrior I saw more dominate; last summer it scored more
than 170 pts in the 94 hill, to disappear as soon as people began to take
counter measures like boot and use of bombs with b-field of 1. It's a
classic example of once through scanner bomber with a deadly multipass clear.

;name Rave
;author Stefan Strack
;strategy Carpet-bombing scanner based on Agony and Medusa's

Rave is another classic cmp scanner, attacking with a carpet of spl 0. Its
relative Agony II, similar but using boot, is one of the longest living
warriors in the 94 hill.

;name Thermite 1.0
;author Robert Macrae
;strategy  Quick-scan -> incendiary bomber.

An example of quick scanner, using vampire attacks, followed by an
incendiary bomber. For a discussion on Thermite see Core Warrior 5

;name Tornado
;author Beppe Bezzi
;strategy the original one
;strategy Fast 60% c bomber

Tornado is the fastest pure bomber appeared till now (the 75% and 80% are
mixed scan bombers) It's interesting the use of bombs as pointers for next
one. Tornado is discussed in Core Warrior 7
The version in the benchmark never stood in the hill for long, being too
vulnerable to paper, but was a good complement for Marcia Trionfale in the
p-warrior Jack in the box (that was in the hill for very long :-)
Exercise for the reader: make it self splitting to increase resistance, add
a djn stream, a multipass clear and a bit of paper protection; if you can do
it without bloating Tornado you'll make the hill with success. Yes, Tornado 3.0

Overall the benchmark is, IMO of course, a little unbalanced. There are too
many replicators, and less scanners than in the 94 hill, stone bombers are
outdated, modern bombers are different from Cannonade and Firestorm, a Die
Hard style warrior could have found its place as like as a simple pwarrior
like Jack or juliet and paper. Anyway we have to thank JKW fo doing the job,
the warrior choice is sometimes personal taste, everybody has his preferred
enemies, and trades off some overall point just to beat'em :-)

I tested my warriors, and a few other famous guys on the 94 hill, using JKW
benchmark; the results:

Warrior         Wilkstones (or whatever you want to call them, score for
example :-)

Frontwards v2   170.33
Naked Dancer    168.67
quiz            159.58
Tornado 3.0     156.33
Jack in the box 155.83
Impfinity v4g1  149.41
Memories        146.92
Torch t18       140.33

These are some other results, courtesy of Steve Bayley, other scores have
been posted in r.g.c.

The warriors of the benchmark itelf:

Porch Swing     167.9583
Marcia t. 1.3   150.4167
Timescape       149.4167
nobody special  145.75
Blue Funk 3     142.25
Thermite 1.0    139.5
Paperone        138.875
Iron Gate       132.5
Cannonade       123.5417
Rave            120.125
Firestorm       107.5833
Tornado          84.375

And two classics

Mice             87.08334
Dwarf            49.375
______________________________________________________________________________
Planar's corner


                      A true story


Last week, I had a great idea for a new strategy.  I wrote a first
prototype warrior and tried it against my personal benchmark.  This is
8 warriors taken from my own Web page, section "Warriors on the
hill".  They are:

Clisson Lite
Frontwards v2
Impfinity v4g1
Lithium
Memories
Blue Funk 3
Thermite 1.0
Tornado

Some of these are old versions of current hill warriors.

So I ran my benchmark and got something like this:

opponent        Win Los Tie   Win Los Tie   Win Los Tie   Win Los Tie   points

0ClissonLite    110  85   5 / 116  81   3 /  74 114  12 / 121  73   6 / 161
1Frontwards     115  69  16 / 112  62  26 / 119  63  18 / 121  67  12 / 184
2Impfinity      112  55  33 / 107  43  50 / 116  48  36 / 122  50  28 / 189
3Lithium         80  99  21 / 125  48  27 / 101  62  37 / 111  74  15 / 168
4Memories        74 124   2 /  86 114   0 / 113  82   5 /  85 115   0 / 135
9BlueFunk       121  44  35 /  79  84  37 / 107  65  28 / 113  51  36 / 174
9Thermite        19 167  14 /  22 173   5 /  19 171  10 /  15 176   9 /  32
Tornado..        83  89  28 /  75  89  36 / 103  74  23 / 109  59  32 / 153
self             72  75  53 /  84  66  50 /  78  82  40 /  76  84  40 / 139


This looked promising, except for a definite weakness against
quick-scanners, so I started working on the constants (and fixed a
couple of bugs in the process).  A number of hours later, and after
more than 1000 battles (at 200 rounds each, this is a lot of
computation), I had this:

0ClissonLite    125  73   2 / 121  77   2 / 112  87   1 /  34  39 127 / 163
1Frontwards     141  54   5 / 151  43   6 / 133  58   9 / 124  70   6 / 209
2Impfinity      113  53  34 / 141  44  15 / 114  55  31 / 120  43  37 / 197
3Lithium        103  56  41 / 107  63  30 /  94  76  30 /  87  75  38 / 164
4Memories        86 111   3 / 105  89   6 / 122  74   4 / 127  72   1 / 166
5BlueFunk       133  38  29 / 133  34  33 / 133  35  32 / 134  40  26 / 214
6Thermite        63 128   9 /  49 132  19 /  77 108  15 /  51 136  13 /  97
7Tornado.       116  84   0 / 121  79   0 / 136  64   0 / 119  81   0 / 184
self             99  88  13 /  92  89  19 / 130  49  21 /  93  91  16 / 163

"Good, I said, that should land me right on top of the hill, with at
least 160 points."  So I sent my program to the hill and eagerly
awaited the results.  Here they are:

                                                points
name                            %W/ %L/ %T    taken/given
-----
Gem of the Ocean                52/ 38/ 10     166 / 124
Grilled Octopus v0.5            53/ 41/  5     165 / 129
Frontwards v2                   66/ 28/  5     204 /  90
Impfinity v4g1                  80/ 10/  9     249 /  41
Chameleon                       19/ 65/ 15      72 / 212
Barrage                         21/ 57/ 21      86 / 192
Hazy Shade II                   14/ 17/ 68     112 / 119
Naked dancer                    29/ 42/ 28     117 / 154
prova                           32/ 55/ 12     109 / 178
Evol Cap 6.6                     9/ 24/ 66      95 / 138
Blue Funk 5                     64/ 22/ 13     207 /  79
Tornado 3.0                     27/ 53/ 20     101 / 179
myConfuser2.0                   34/ 40/ 25     129 / 145
Memories                        58/ 41/  0     175 / 124
A Hard Day's Night              41/ 48/ 10     135 / 154
T.N.T.                          31/ 64/  4      99 / 196
Sloth v0.4                      37/ 61/  1     114 / 184
Flurry                          15/ 70/ 14      60 / 225
Stepping Stone                  42/ 49/  8     134 / 157
Hector 3                        28/ 52/ 20     104 / 176
Clisson                         16/ 21/ 62     112 / 125
Thermite II                     16/ 70/ 13      61 / 225
Lithium                         39/ 41/ 20     137 / 143
C Seagal II                     37/ 61/  1     114 / 184
Living Let Die v2.6             27/ 66/  6      88 / 205
self                            44/ 44/ 11     143 / 145


What the hell ?!  This gives me 127 points, 24th position on the hill.
Needless to say, I'm not happy with these results.  It's time to
analyze.

Note that the results are as good as expected against Frontwards, Blue
Funk, and Lithium, and even better against Impfinity (can you say
"suicide" ?).  Note also the good results against Gem of the Ocean and
Grilled Octopus.  But my warrior fails miserably against a lot of
others.

The problem is described by one word: bias.  My test suite is strongly
biased.  I won't tell you toward what because I don't want you to
guess my new strategy.

I think this story show the importance of a good, balanced test suite,
and the necessity of live testing (i.e. sending test warriors to the
hill), as opposed to off-line testing.

Now I'll go back to the drawing board, but I feel just a little bit
depressed.  Maybe I can make it work, but it won't be as great as it
should be.

-- Planar
______________________________________________________________________________
Questions?  Concerns?  Comments?  Complaints?  Mail them to people who care.
authors: Beppe Bezzi <bezzi@nemo.it> or Myer R Bremer <bremermr@ecn.purdue.edu>
2002-2005 corewar.info. Logo C. Schmidt