lab reports · orreryAbstractIIIIIIIVV

treadcore · check-in report CI-062

Survival Maps: Low Armour Means Home, the Missing Drones Found, and the First Net Off the Bottom of the Census

Check-in report CI-062. Paul Richeson, treadcore.org; Claude Code (Claude Opus 5.5) as the pair. 26 October 2026. Companion records: LAB-REPORT-BRAIN.md section 100; AI-BRAINZ-PLAN.md sections 7 and 9; scenarios/training/; build/train/NOTES-maps.txt on the Mac; build/net7/ on the census machine.

Source: documentation/checkins/CI-062-2026-10-26-survival-maps.md, built by orrery's tools/report/collect.py.

Abstract

Three survival maps were written and read before training: 7 (low and far from home), 7a (low, go home), and 8 (outnumbered; amended first, because the scripted brain lived only 5% of it as drawn). The net learned map 7a (99.7%) but stayed at 0 on map 7. Probes showed the net's drive actions can dodge every shell with exact look-ahead, so the limit was the senses; a shell contact took the dodge from 90 to 93% up to 95.9%. A traced death then showed what was killing it: a strike drone, not the mortar. The net had no drones up and no sense of the air. With the drone head on and an air contact, map 7 went from 0 to 44.3% (scripted 53.3%). One net seat in a real match died half as often (0.82 deaths in 3 minutes, from 1.73). A team of the net read -20.33 +/- 0.27 in the census: level with a random net, so the rule fails, but +3.96 over the last net, with four times the kills.

Index terms: curriculum, sensor design, upper-bound probe, drone defence, transfer.

I. Introduction

A. Intent

Teach the learned tank to survive, the census's first need (LR 99).

B. The prompt

survival maps. implimment

II. Decision Log

#CauseDecisionNot taken, and why
D1Survival needs hurt, short tanksarmor and shells on a scenario tank; armour, death time and alive_time, armor_gained, armor_at_least—
D2Map 8 as drawn: the scripted brain lived 5%Amended before training (home 8, enemies 14)Train on an unsurvivable map
D3Map 7: 0 of 300 after 400 generationsA step map, 7a (no enemy): low armour means homeMore generations on 7
D4Map 5 stalled at 90 to 93%Probes: the actions by oracle (88.5%) and by simulation (100%)Blame the learner, or change the actions
D5The actions suffice; the senses fold when and whereThe shell contact, appended; older nets widened with zerosA new net from scratch
D6The trace: deaths from a 35-damage hitRead as STRIKE_DAMAGE: the drone head on, the air contactKeep training against the mortar
D7Phase 1's enemy fell to 64.9%Failures read first: 114 of 117 enemies destroyed by the net; both readings reported, the second marked as chosen after the resultChange the rule silently
D8Between maps and the censusThe match reading: one seat of a dealt match, first 3 minutes, against its scripted brainOnly the census, which cannot tell nets apart yet
D9The census of the map 7 netBeside the run in a worktree, LR 97's seeds, rule firstStop the run

III. Methods

On the Mac: make train with the courses in turn, from nets/map4.bin and then from each kept net, held-out seeds from 9,000,000; PROBE=oracle and PROBE=sim (map 5's situation built in learn.rs, nine actions played forward in a copy of the world); MATCH=40 (seeds from 8,000,000). On the census machine at 814d601, in a worktree: CENSUS_NET=nets/map7.bin SEEDS=110 SEED0=500000 MAP=all JOBS=24 make census. Deaths, kills and held are summed from the trial team's lines in every g-*.log.

IV. Results

ReadResult
Map 7a, trained99.7% (299 of 300); scripted 100%, untrained 0%
Map 5, oracle / simulated bound / trained with the shell contact88.5% / 100% / 95.9%
Map 7 with drones, trained44.3% +/- 2.9; scripted 53.3%
Map 8, untrained on it15.7%
Match, first 3 minutes (map 4; map 7a; map 5; map 7; scripted)deaths 1.77; 3.08; 1.73; 0.82; 0.33
Census, nets/map7.bin-20.33 +/- 0.27 (random -20.35; map 4 -24.29)
A match: deaths, kills, held, score (map 7)16.6, 3.7, 2.1, 5.3
Brain testspass (122)

V. Discussion

The step map, the probe and the trace each turned a wall into a result. What a net needs in a match is now partly known: the bubble, then going home, then the dodge. The census cannot yet tell the net from a random one, but it is no longer at the bottom.