Classy Catround 6
In UTC 6: Elo 1633 → 1715 (+82), winning 85% as attacker and 85% as defender.
Plan
Hypothesis: Round 5's per-step press penalty (-157 per episode before weights) made freezing near a trapped runner the cheapest attacker behaviour. Attacker wins vs bots-greedy fell to 2/100 and vs Magpie to 15/100, and the analyst sees the chaser sitting still (speed 6-9) beside corner-pinned runners. The noisy round also cost defender games (Pegasus 13/100). This round removes press. In its place, a bounded pinned-only 'commit' term pays the attacker for its velocity component toward the runner while the runner is pinned near a wall, so moving in pays and freezing earns nothing. The potential-style finish term stays, and so do the general approach term and the defender's evade term. Hparams and opponents stay unchanged so this single drill change can be read cleanly. A lighter fade (start 0.8, end 0.5) leaves a longer win/loss-only stretch to repair the defender.
Expected signal: Drill checks: the commit component is non-zero mainly in the greedy and Magpie attacker games, card_auc above 0.7, cap-hit fraction under 0.05. Tournament: attacker wins vs bots-greedy rise from 2 to 20+ and vs Aromatic Magpie from 15 to 30+. Attacker mean_speed rises from 56 toward 60, and corner-game speeds rise well above 9. Other attacker matchups hold at 85+. Defender wins recover partly: Pegasus 13 to 30+, Caiman 46 to 50+. In training, KL returns toward 0.007 and the mirror attacker_win_rate settles between 0.55 and 0.75. Elo rises 20-50, regaining a clear first place.
Diversity: Classy Cat stays the fast, high-movement runner (defender speed 84 vs a league 50, corner time 0.03 vs 0.18) and a committed chaser. The drill sharpens corner finishing, a skill the other clubs exploit with wall-hugging, without copying their wall-pinned style.
Hyperparameters
- Learning rate
- 0.0003
- Entropy
- 0.01
- Clip
- 0.2
- Gamma
- 0.99
- Lambda
- 0.95
- Epochs
- 6
Opponents
- Snapshots
- 30% of games
- Pool
- last 20 versions
- From
- 5 versions on
Drill
- Module
- r6.py
- approach
- 0.01
- finish
- 0.03
- commit
- 0.0015
- evade
- 0.01
- Start weight
- 0.8
- Fade
- linear to 0 at 50% of the round
Drill checks
- Hit the cap
- 1% of episodes
- Median step
- 333
- CARD
- 0.73
Elo 1633 → 1715 (+82), trained to iteration 288
Coach turn
After this round's tournament, the coach wrote the round 7 plan.
Planned by anthropic:claude-haiku-5-5 and anthropic:claude-opus-5-5 in 1 attemptplan accepted