50-seed eval · pymunk-reference vs pymunk-wall, each with its own default brain

50 fresh seeds (disjoint from every earlier batch), same goal, 200 steps. Each engine runs the brain it defaults to, so this compares engine+brain pairs, not friction alone; the friction-only comparison (same brain both sides) is the 25-seed contact study.

Outcomes over 50 seeds

metricREFWALL
solved56
cov_ge_9556
cov_mean0.5910.584
cov_median0.7190.623
cov_q250.3510.356
cov_q750.8950.837
angle_final_mean19.718.8
pos_final_mean24.620.9
bouts_mean3.63.7
plans_mean4.34.3
peak_speed_mean114114

Figures

coverage_per_seed.png
coverage_distribution.png
coverage_trajectory.png
bout_delivery.png

Every seed, every stage

seedREF · pymunk-reference, rule brainpublished frictionless env, its default brainWALL · pymunk-wall μ=0.5, Brain-contact2contact_friction 0.5, its default brain
2772mixed, moderatenot solved · cov 0.917 · 1° / 4 px · 5 boutsnot solved · cov 0.594 · 6° / 18 px · 4 bouts
3075mixed, moderatenot solved · cov 0.914 · 4° / 0 px · 6 boutsSOLVED @191 · cov 0.963 · 1° / 2 px · 5 bouts
4183flipped, far, near a wallnot solved · cov 0.556 · 0° / 20 px · 3 boutsnot solved · cov 0.360 · 0° / 38 px · 3 bouts
5739flipped, far, near a wallnot solved · cov 0.047 · 61° / 72 px · 2 boutsnot solved · cov 0.312 · 6° / 45 px · 3 bouts
7082flipped, far, near a wallnot solved · cov 0.797 · 4° / 9 px · 3 boutsnot solved · cov 0.856 · 4° / 7 px · 3 bouts
7895flipped, far, near a wallnot solved · cov 0.000 · 67° / 103 px · 2 boutsnot solved · cov 0.394 · 9° / 38 px · 4 bouts
10560mixed, farSOLVED @189 · cov 0.955 · 2° / 1 px · 4 boutsnot solved · cov 0.358 · 6° / 40 px · 4 bouts
12718flipped, farnot solved · cov 0.918 · 4° / 0 px · 4 boutsnot solved · cov 0.714 · 0° / 14 px · 3 bouts
16110flipped, moderatenot solved · cov 0.398 · 43° / 4 px · 4 boutsnot solved · cov 0.304 · 70° / 12 px · 4 bouts
17359inverted, farnot solved · cov 0.357 · 50° / 14 px · 4 boutsnot solved · cov 0.344 · 52° / 1 px · 5 bouts
17866mixed, nearnot solved · cov 0.806 · 5° / 8 px · 4 boutsnot solved · cov 0.826 · 9° / 1 px · 4 bouts
22402mixed, nearSOLVED @176 · cov 0.978 · 1° / 1 px · 5 boutsnot solved · cov 0.676 · 3° / 15 px · 6 bouts
24422flipped, moderatenot solved · cov 0.743 · 12° / 8 px · 3 boutsnot solved · cov 0.678 · 5° / 15 px · 3 bouts
25236aligned, far, near a wallnot solved · cov 0.219 · 4° / 39 px · 4 boutsnot solved · cov 0.559 · 24° / 14 px · 3 bouts
26352flipped, farnot solved · cov 0.000 · 9° / 109 px · 3 boutsnot solved · cov 0.179 · 16° / 78 px · 4 bouts
27368flipped, far, near a wallnot solved · cov 0.761 · 13° / 9 px · 4 boutsnot solved · cov 0.102 · 15° / 79 px · 4 bouts
30596mixed, farnot solved · cov 0.916 · 1° / 4 px · 3 boutsnot solved · cov 0.326 · 5° / 34 px · 3 bouts
31034inverted, moderatenot solved · cov 0.287 · 84° / 4 px · 4 boutsnot solved · cov 0.286 · 87° / 14 px · 5 bouts
32316flipped, moderatenot solved · cov 0.388 · 40° / 19 px · 3 boutsnot solved · cov 0.508 · 33° / 14 px · 4 bouts
33340mixed, farnot solved · cov 0.369 · 1° / 37 px · 4 boutsSOLVED @143 · cov 0.963 · 2° / 1 px · 4 bouts
33877mixed, far, near a wallnot solved · cov 0.000 · 54° / 112 px · 3 boutsnot solved · cov 0.394 · 2° / 29 px · 3 bouts
33915flipped, farnot solved · cov 0.794 · 3° / 10 px · 4 boutsnot solved · cov 0.752 · 3° / 12 px · 4 bouts
41631mixed, far, near a wallnot solved · cov 0.000 · 46° / 141 px · 5 boutsnot solved · cov 0.104 · 60° / 63 px · 5 bouts
43366mixed, farnot solved · cov 0.430 · 4° / 26 px · 3 boutsnot solved · cov 0.847 · 4° / 5 px · 3 bouts
45081aligned, far, near a wallnot solved · cov 0.344 · 2° / 41 px · 4 boutsSOLVED @160 · cov 0.981 · 0° / 1 px · 3 bouts
46242aligned, far, near a wallnot solved · cov 0.446 · 3° / 26 px · 3 boutsnot solved · cov 0.805 · 8° / 5 px · 3 bouts
47879mixed, farnot solved · cov 0.778 · 3° / 9 px · 4 boutsnot solved · cov 0.942 · 2° / 3 px · 4 bouts
49699mixed, farnot solved · cov 0.922 · 2° / 3 px · 3 boutsnot solved · cov 0.917 · 1° / 4 px · 3 bouts
50423flipped, farnot solved · cov 0.752 · 0° / 13 px · 4 boutsnot solved · cov 0.677 · 19° / 6 px · 4 bouts
54619mixed, farnot solved · cov 0.735 · 0° / 13 px · 3 boutsnot solved · cov 0.364 · 3° / 40 px · 3 bouts
56524mixed, far, near a wallnot solved · cov 0.545 · 3° / 20 px · 4 boutsnot solved · cov 0.603 · 11° / 18 px · 3 bouts
60162mixed, farnot solved · cov 0.741 · 8° / 13 px · 3 boutsnot solved · cov 0.678 · 4° / 16 px · 4 bouts
65954flipped, farnot solved · cov 0.379 · 27° / 35 px · 2 boutsnot solved · cov 0.411 · 28° / 33 px · 2 bouts
67306mixed, farnot solved · cov 0.948 · 2° / 0 px · 7 boutsSOLVED @189 · cov 0.960 · 1° / 2 px · 4 bouts
69745flipped, farnot solved · cov 0.899 · 1° / 4 px · 3 boutsnot solved · cov 0.872 · 3° / 6 px · 3 bouts
72262flipped, moderatenot solved · cov 0.327 · 72° / 19 px · 3 boutsnot solved · cov 0.329 · 61° / 11 px · 4 bouts
73417flipped, far, near a wallnot solved · cov 0.762 · 3° / 12 px · 3 boutsnot solved · cov 0.840 · 5° / 6 px · 4 bouts
73939aligned, moderateSOLVED @167 · cov 0.982 · 1° / 0 px · 4 boutsnot solved · cov 0.323 · 3° / 41 px · 3 bouts
77071mixed, far, near a wallnot solved · cov 0.798 · 4° / 9 px · 4 boutsnot solved · cov 0.911 · 4° / 3 px · 3 bouts
77887inverted, moderatenot solved · cov 0.339 · 62° / 15 px · 3 boutsnot solved · cov 0.374 · 49° / 9 px · 4 bouts
79889flipped, farnot solved · cov 0.881 · 0° / 6 px · 3 boutsnot solved · cov 0.375 · 3° / 34 px · 3 bouts
81221aligned, farnot solved · cov 0.704 · 5° / 14 px · 4 boutsnot solved · cov 0.700 · 3° / 14 px · 4 bouts
83249inverted, moderatenot solved · cov 0.349 · 51° / 20 px · 4 boutsnot solved · cov 0.355 · 56° / 17 px · 4 bouts
91328flipped, far, near a wallnot solved · cov 0.674 · 2° / 16 px · 4 boutsSOLVED @181 · cov 0.952 · 2° / 1 px · 4 bouts
92348flipped, far, near a wallnot solved · cov 0.000 · 134° / 165 px · 2 boutsnot solved · cov 0.000 · 159° / 133 px · 5 bouts
93128mixed, farSOLVED @108 · cov 0.978 · 1° / 1 px · 2 boutsnot solved · cov 0.803 · 3° / 10 px · 4 bouts
94828inverted, moderatenot solved · cov 0.300 · 69° / 1 px · 4 boutsnot solved · cov 0.291 · 79° / 13 px · 4 bouts
95399mixed, farnot solved · cov 0.925 · 4° / 0 px · 5 boutsSOLVED @168 · cov 0.954 · 2° / 2 px · 4 bouts
97593aligned, farSOLVED @189 · cov 0.955 · 1° / 2 px · 4 boutsnot solved · cov 0.644 · 4° / 17 px · 4 bouts
99183mixed, farnot solved · cov 0.562 · 13° / 17 px · 3 boutsnot solved · cov 0.737 · 2° / 11 px · 3 bouts