Core War
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xcorewar.bsky.social
Core War
@xcorewar.bsky.social
20 followers 30 following 85 posts
CORE WAR: Hostile Programs Engage in a Battle of Bits https://corewar.co.uk
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xcorewar.bsky.social
A few demos running on day one of the Retro Computer Fest in Cambridge. v5 of the Core War simulated annealing script on a Milk-V MARS, Core War on the FUSE #zxspectrum emulator on HaikuOS and Core War genetic algorithms on a Raspberry Pi 3B #retrofest #corewar
November 16, 2025 at 8:00 AM
xcorewar.bsky.social
The 88 Core War Tournament is over! Congratulations to Inversed. #corewar

1st "Semiopacity" by inversed
2nd "Janus" by inversed
3rd "chaoscan" by Christian Schmidt
4th "TrItE Fighter 5" by Philip Thorne
5th "Bewitching'88" by S.Fernandes
November 15, 2025 at 10:54 PM
xcorewar.bsky.social
⭐ Core War tournament reminder... the deadline for the 88 tournament is at 11:30am (GMT) on Saturday 15th November. Entries currently received from two players. corewar.co.uk/tournamentwe... #corewar
Core War: Tournament Weekend 2025 Announcement
corewar.co.uk
November 13, 2025 at 4:55 PM
xcorewar.bsky.social
The Core War Tournament Weekend returns to The Retro Computer Festival on 15-16 November. The 88 tournament on 15th, 94nop on 16th. Entries will be added to the top-x of the Koenigstuhl hill before an iterative push-off with diversity scoring to determine the final rankings. More info soon. #corewar
October 25, 2025 at 5:16 PM
xcorewar.bsky.social
20 years ago - Mandragora entered the KOTH 94nop hill on this day in 2005. A clear/imp with a g2-style SPL/DAT clear and vortex-launched imps corewar.co.uk/mandragora.htm
Core War: Mandragora by Christian Schmidt
corewar.co.uk
October 10, 2025 at 8:42 AM
xcorewar.bsky.social
🏆 Congratulations to Inversed and Dave Hillis, who claimed first and second place in the Nano Core War Challenge with Reptiloid Supremacy, Reptiloid Conspiracy, and Smitten Atrocity. inversed.ru/CoreWar_Chal... #corewar
CoreWar Nano Challenge
inversed.ru
June 18, 2025 at 6:23 PM
xcorewar.bsky.social
The Core War Nano Challenge is about to go live... www.youtube.com/watch?v=mDBW... #corewar
Core War Nano Challenge
YouTube video by inversed
www.youtube.com
June 15, 2025 at 2:02 PM
xcorewar.bsky.social
⏰ TOURNAMENT REMINDER - the entry deadline for the Nano Core War Challenge is at 10:00 UTC on Sunday 15th June. Please ask on the Core War Discord if you need any help.

▫️ Discord - discord.gg/YxrbaQDT9z
▫️ Tournament page - inversed.ru/CoreWar_Chal...
#corewar
Join the Core War & Programming Games Discord Server!
Check out the Core War & Programming Games community on Discord – hang out with 35 other members and enjoy free voice and text chat.
discord.gg
June 11, 2025 at 3:04 PM
xcorewar.bsky.social
⭐ CORE WAR TOURNAMENT ANOUNCEMENT ⭐
Inversed has announced the Nano Core War Challenge, with a first prize of $100 🙂 Entries will be scored against the Nash equilibrium, and a new equilibrium will be calculated.
inversed.ru/CoreWar_Chal... #corewar
CoreWar Nano Challenge
inversed.ru
May 17, 2025 at 11:11 PM
xcorewar.bsky.social
Here's a 3D MDS map of the top 100 warriors from the 88 Koenigstuhl. Each point represents a warrior. The closer a point is to another point, the closer the warriors' scores are. #corewar
March 22, 2025 at 6:18 AM
xcorewar.bsky.social
Creeper was the first computer worm, spreading across ARPANET in 1971 with the message "I’m the creeper, catch me if you can!" Here's the story of Creeper and Reaper, which inspired Core War corewar.co.uk/creeper.htm #corewar
Creeper and Reaper, the History of the First Computer Worm
Creeper was the first computer worm, spreading across ARPANET in 1971 with the message 'I’m the creeper, catch me if you can!' Here's the history of Creeper and Reaper.
corewar.co.uk
February 27, 2025 at 9:48 PM
xcorewar.bsky.social
Inversed has created a best counter graph for the nano, tiny and limited process hills, connecting each warrior with the opponent which beats it with the highest score:
▫️▫️

groups.google.com/g/rec.games.co… reddit.com/r/corewar/comm…
March 1, 2025 at 10:50 AM
xcorewar.bsky.social
Has anyone got access to the issues of Tudomány (the Hungarian edition of Scientific American) with A K Dewdney's Számítógépes Észjáték columns about Memóriaháború (Core War)? Thanks #corewar
March 1, 2025 at 10:50 AM
xcorewar.bsky.social
"Windows Hothouse, Creating Artificial Life with Visual C++" by Mark Clarkson (1994) has a chapter on Core War.
March 1, 2025 at 10:50 AM
xcorewar.bsky.social
Inversed has computed the Nash equilibrium for the tiny hill. Ranking is by probability with all warriors scoring the same. For more details, see "Nash equilibrium: Tiny 2022.03.23

groups.google.com/g/rec.games.co…
March 1, 2025 at 10:49 AM
xcorewar.bsky.social
Results for the grand final of the Corewar Global Masters, "Tiny Survival":
1⃣ Roy van Rijn
2⃣ Inversed
3⃣ Steve Gunnell
4⃣ Sascha Zapf
5⃣ Dave Hillis
6⃣ Wayne Sheppard
7⃣ S.Fernandes
8⃣ John Metcalf
9⃣ RainRat
March 1, 2025 at 10:49 AM
xcorewar.bsky.social
Entries are in for the Corewar Global Masters. The action will be livestreamed at▫️ Round 1, 10th Feb, 7pm (CET/GMT+1)
▫️ Round 2, 11th Feb, 7pm
▫️ Round 3, 12th Feb, 7pm
▫️ Lower Ranks, 13th Feb, 6pm
▫️ Grand Final, 13th Feb, 8pm

Spectators welcome 🙂

twitch.tv/corewarglobal
March 1, 2025 at 10:48 AM
xcorewar.bsky.social
The 88, 94 and 94x Core War Hall of Fame have been updated:
▫️▫️▫️

corewar.co.uk/halloffame/94x… corewar.co.uk/halloffame/94n… corewar.co.uk/halloffame/88h…
March 1, 2025 at 10:48 AM
xcorewar.bsky.social
The Sierpinski triangle in Redcode #corewar
March 1, 2025 at 10:48 AM
xcorewar.bsky.social
Here's a short optima number calculator in Python using the bomb-free space algorithm. #python #corewar

▫️

corewar.co.uk/optima/optima.…
March 1, 2025 at 10:48 AM
xcorewar.bsky.social
Imps, rings, spirals and how to launch them

corewar.co.uk/imp.htm
Core War: Imps, Imp Rings and Imp Spirals
Imp is the simplest example of a Redcode program that is able to relocate itself in the memory array. It copies the contents of relative address 0 (namely the Imp) to relative address 1, the next address. As the program is executed it moves through the array at a speed of one address per cycle, leaving behind a trail of Imps.”
corewar.co.uk
March 1, 2025 at 10:47 AM
xcorewar.bsky.social
📉 Methods for finding Core War optima numbers:
▫️ Closest previous hit
▫️ Distance from midpoint
▫️ Bomb-free space
▫️ Locally Fibonacci steps
▫️ Find-x numbers
Sample code

corewar.co.uk/optima.htm
Core War: Optima Numbers
Choosing a good step size is critical to the success of a warrior, so we need a way of measuring the effectiveness of a step size.”
corewar.co.uk
March 1, 2025 at 10:47 AM
xcorewar.bsky.social
Happy Birthday Darwin - the first programming game is 60 years old! Victor Vyssotsky, Douglas McIlroy and Robert Morris created Darwin on an IBM 7090 at Bell Labs in August 1961.

corewar.co.uk/darwin.htm
March 1, 2025 at 10:47 AM
xcorewar.bsky.social
Are there any assembler automata artificial life models missing from this list?: Luna, Venus, Tierra, Avida, Helix, Helix4, Amoeba, Amoeba II, Amoeba III, COMOS, Nidus, Quantum Coreworld, CoreLife, Evolve 4.0, SALTA
#alife #ArtificialLife
March 1, 2025 at 10:46 AM
xcorewar.bsky.social
Does anyone know the source of this John von Neumann quote?:

“Life is a process which can be abstracted away from any particular medium.”

#Alife #ArtificialLife
March 1, 2025 at 10:46 AM