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Add RoboCode CC:Ladder (#115)
* Add RoboCode CC:Ladder (116 imported classic-Robocode bots + build tooling) - 116 open-source classic Robocode bots imported to CodeClash-ai/RoboCode human/robocode/* branches (source of truth, not committed here) from ~30 repos: shipped sample bots + mgalushka Super* variants; the full RoboWiki/PEZ collection (micro/mini/nano/femto + Marshmallow/GF1/Swiffer); flat multi-file bots (Mb2, BerendBotje, MaximBot, TheCarver, BobTheBuilder, StarterBot, npcomplete); flattened subpackage bots (ur4no, kokomo); single-file DrussGT/HawkOnFire (strong top rungs); and ~35 more from a broad GitHub sweep. All copy-in (0 reimplementations) -- verbatim, only repackaged to the arena package + main class renamed to MyTank (helpers flattened where needed). yngwie/chomsky skipped (unresolvable external deps). - Each of the 116 verified to COMPILE and play a real battle in the arena image (stage 2, 116/116). - Provenance: every port file carries a source-URL/author/license header; scripts/ladder/SOURCES.md is the committed manifest (slug -> GitHub URL). See stamp_sources.py. - Fix arena description: it mislabeled itself Tank Royale but the engine is classic Robocode. - make_robocode.yaml: round-robin (100 rounds, ~2h local at -w6) for Elo; README note. - scripts/ladder/: build tooling (copy-in porting guide, structural validator, compile+battle smoke, push script, provenance stamper, reference bot); ports/ regenerated, not committed. * Fix ladder player names for RoboCode; bump make_robocode sims to 300 `ladder make` set the per-player name to the raw branch_init (e.g. `human/robocode/walls`), which the RoboCode arena turns into an on-disk dir, a Java package via `sed s/custom/<name>/`, and a robot-selector token. Slashes broke the sed (terminating the s/// command) and produced invalid robot names, so battles loaded 0 robots and get_results crashed on max() of an empty score dict. Sanitizing to `robocode_<bot>` still failed: RoboCode reserves the `robocode` package namespace for its engine, so its robot classloader refuses any robot whose package starts with it (ClassNotFoundException at battle time). Add `_player_slug()` (shared by make + run) that strips the `human/` prefix and a leading path segment equal to the game name, yielding a bare `<bot>` package (e.g. `human/robocode/walls` -> `walls`). Non-RoboCode branches (`human/<author>/<bot>`, `human/<bot>`) are unaffected -- their leading segment never matches the game name, so slugs are identical to before. Bump make_robocode.yaml sims_per_round 100 -> 300 for lower Elo variance (~41s/pair solo, ~25s/pair throughput under -w 6; still far under the 5-min/pair budget) and refresh the cost comment with measured numbers. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * Disable replay recording in make_robocode (record_ratio: 0) The round-robin only needs per-battle scores to fit Elo; recording every sim wrote ~8.7MB of compressed replay XML per pair (~59GB over 6670 pairs, risking disk exhaustion mid-run) and pinned a gzip core on each log copy. Scores come from results_*.txt, which is unaffected. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * Fix "/" bug in agent naming * nit --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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‎codeclash/arenas/robocode/robocode.py‎

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class RoboCodeArena(CodeArena):
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name: str = "RoboCode"
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description: str = f"""Robocode (Tank Royale) is a programming game where your code is the tank: each turn your bot sends intents—speed plus body/gun/radar turn rates and firepower—based on the game state it perceives via radar.
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Your program decides how to move, aim, and fire in a deterministic, turn-based arena to outlast other bots.
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description: str = f"""Robocode is a programming game where your code IS the tank. This is classic
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Robocode (the `robocode.*` API compiled against robocode.jar) — NOT Robocode Tank Royale.
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Your bot is a Java class that `extends robocode.Robot` (or `robocode.AdvancedRobot` for non-blocking
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control): its `run()` method drives the tank in a loop (e.g. `ahead(100)`, `turnGunRight(90)`,
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`fire(3)`), and it reacts to events like `onScannedRobot(ScannedRobotEvent)`, `onHitByBullet(...)`,
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and `onHitWall(...)`. Move, aim the gun, sweep the radar, and fire to outlast other bots.
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Your bot logic must be written in Java and located in the `robots/custom/` directory.
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Keep the main bot class named `{str(RC_FILE)}`, but you can include additional Java files if you'd like."""
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default_args: dict = {

‎codeclash/tournaments/ladder.py‎

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logger = get_logger("ladder")
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def _player_slug(branch_init: str) -> str:
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"""
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Turn a ``human/<author>/<bot>`` init branch into a bare, filesystem-safe player name:
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strip the ``human/`` prefix and join the rest with ``__`` (e.g. ``human/aleksiy325/snek-two``
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-> ``aleksiy325__snek-two``).
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"""
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return branch_init.replace("human/", "").replace("/", "__")
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def resolve_ladder_rules(ladder_rules: dict, rounds: int) -> tuple[int, int]:
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"""Validate the required ``ladder_rules`` block and return ``(min_round_wins, win_last_k)``.
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for i in range(num_players):
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for j in range(i + 1, num_players):
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player1 = copy.deepcopy(players[i])
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player1["name"] = player1["branch_init"]
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player1["name"] = _player_slug(player1["branch_init"])
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player2 = copy.deepcopy(players[j])
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player2["name"] = player2["branch_init"]
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player2["name"] = _player_slug(player2["branch_init"])
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pvp_config = {**copy.deepcopy(config), "players": [player1, player2]}
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vs = f"PvpTournament.{player1['name']}_vs_{player2['name']}".replace("/", "_")
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output_dir = LOCAL_LOG_DIR / "ladder" / config["game"]["name"] / vs
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opponent_rank = 0
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for idx, opponent in enumerate(self.ladder):
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opponent_rank = len(self.ladder) - idx
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opponent["name"] = opponent["branch_init"].replace("human/", "").replace("/", "_")
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opponent["name"] = _player_slug(opponent["branch_init"])
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if "branch_init" in self.player and idx > 0:
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# After first opponent, remove branch_init so the player continues from the
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# previous tournament's codebase.

‎configs/ladder/README.md‎

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lihongxun945, blackstone, blupig) reimplemented in stdlib Python — alongside a strategic starter.
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AlphaZero/CNN bots were skipped (need trained weights).
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### RoboCode (newly added)
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The [CC:RoboCode](https://github.com/CodeClash-ai/RoboCode) repo hosts 116 human bots on `human/robocode/*`
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branches (bot code lives only on the branches, not in this repo). This arena is **classic Robocode**
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(`robocode.*` API compiled against `robocode.jar`), so importing open-source bots is mostly a
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mechanical copy-in + rename rather than a strategy rewrite: each bot's Java class(es) are placed in
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`robots/custom/`, the main class renamed to `MyTank`, `package custom;`. The set spans the shipped
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sample bots (SittingDuck/Walls/Corners/…) through famous RoboWiki/PEZ micro-mini bots (Aristocles,
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Pugilist, HawkOnFire) up to a single-file **DrussGT** (a world-class bot) as the top rung; a few use
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Robocode's sanctioned `getDataFile` persistence (degrades gracefully without cross-battle saves).
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Diamond/BeepBoop remain as future top rungs (nested-package multi-file → need flattening). Each import
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was verified to **compile and play a real battle**; every bot's source repo/author/license is recorded
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as a header comment in its branch files.
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## Config layout
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Each arena has a few kinds of config in this folder:

‎configs/ladder/make_robocode.yaml‎

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# Round-robin over the human classic-Robocode bots (imported from ~30 open-source repos; each bot's
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# origin URL/author/license is recorded as a header comment in its human/* branch files), used to
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# RANK them via Elo/Bradley-Terry -> see robocode.yaml. rounds:0 = dummy players play baseline
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# battles (no code edits). N bots -> N*(N-1)/2 pairs; each pair plays sims_per_round rounds (batched
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# 10 at a time, sim_concurrency parallel). Bots live on CodeClash-ai/RoboCode human/* branches; Docker required.
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# COST (measured on an 8-core box: a pair is ~11.8s fixed overhead + ~9.7s per 100 sims, so at
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# sims_per_round=300 a single pair is ~41s solo and ~25s/pair of throughput under --workers 6).
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# 116 bots -> 6670 pairs -> ~46 core-hours -> ~2 days on an 8-core box (-w 6). Resumable: skips
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# already-logged pairs, so a killed run can be re-launched. Scale --workers with cores (~cores-2).
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# Run: uv run codeclash ladder make configs/ladder/make_robocode.yaml --workers 6
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tournament:
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rounds: 0
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game:
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name: RoboCode
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sims_per_round: 300
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sim_concurrency: 5
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# Ranking only needs per-battle scores (results_*.txt), not replays. Recording every sim writes
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# ~8.7MB of compressed replay XML per pair (~59GB over 6670 pairs) and pins a gzip core on every
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# log copy, so disable it here.
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record_ratio: 0
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args:
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nodisplay: true
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nosound: true
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players:
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- agent: dummy
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branch_init: human/kinnla/antiwalls
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- agent: dummy
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branch_init: human/pez/aristocles
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- agent: dummy
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branch_init: human/vftheodoro/barbiescript
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- agent: dummy
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branch_init: human/johan_adriaans/berendbotje
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- agent: dummy
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branch_init: human/pez/blackwidow
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- agent: dummy
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branch_init: human/pez/blackwidow_mini
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- agent: dummy
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branch_init: human/winstliu/bobthebuilder
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- agent: dummy
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branch_init: human/lucasgch/bt7274
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- agent: dummy
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branch_init: human/namnguyenthanhwork/cham
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- agent: dummy
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branch_init: human/looklazy/chilibot
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- agent: dummy
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branch_init: human/pez/chironex_micro
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- agent: dummy
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branch_init: human/pez/chironex_mini
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- agent: dummy
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branch_init: human/robo_code/corners
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- agent: dummy
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branch_init: human/txeverson/crawler
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- agent: dummy
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branch_init: human/robo_code/crazy
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- agent: dummy
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branch_init: human/philipmjohnson/dacruzer
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- agent: dummy
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branch_init: human/trex22/deepthought
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- agent: dummy
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branch_init: human/pseminatore/dodgebot_jnk
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- agent: dummy
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branch_init: human/logancsc/dodgebot2
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- agent: dummy
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branch_init: human/vikdov/dominatorx
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- agent: dummy
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branch_init: human/pez/droidpoet
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- agent: dummy
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branch_init: human/admiralrasmussen/drussgt
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- agent: dummy
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branch_init: human/andrekorol/exterminador
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- agent: dummy
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branch_init: human/robo_code/fire
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- agent: dummy
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branch_init: human/pez/frankie
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- agent: dummy
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branch_init: human/linuxuser0/genetic
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- agent: dummy
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branch_init: human/pez/gf1
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- agent: dummy
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branch_init: human/josephjeon/gntest
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- agent: dummy
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branch_init: human/pez/gouldingi
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- agent: dummy
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branch_init: human/kylebennett/gruffalo
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- agent: dummy
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branch_init: human/pez/haikupoet
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- agent: dummy
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branch_init: human/pez/haikuwalls
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- agent: dummy
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branch_init: human/admiralrasmussen/hawkonfire
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- agent: dummy
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branch_init: human/zhiwei121/hero_pm
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- agent: dummy
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branch_init: human/kylebennett/hugbot
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- agent: dummy
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branch_init: human/mcd8604/hunter
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- agent: dummy
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branch_init: human/pez/hypoleach
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- agent: dummy
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branch_init: human/alpian/ianstank
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- agent: dummy
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branch_init: human/pez/icarus
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- agent: dummy
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branch_init: human/wouterjoosse/infinitylock
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- agent: dummy
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branch_init: human/it_economics/ite_bomax
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- agent: dummy
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branch_init: human/it_economics/ite_claptrap
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- agent: dummy
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branch_init: human/it_economics/ite_cliffbot2
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- agent: dummy
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branch_init: human/it_economics/ite_ctbot
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- agent: dummy
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branch_init: human/it_economics/ite_florian2
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- agent: dummy
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branch_init: human/it_economics/ite_m9
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- agent: dummy
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branch_init: human/it_economics/ite_simple
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- agent: dummy
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branch_init: human/it_economics/ite_terminator
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- agent: dummy
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branch_init: human/joaomcarvalho/jeujdapeu
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- agent: dummy
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branch_init: human/dankraemer/juggernaut
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- agent: dummy
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branch_init: human/u_0x65_e/kokomo
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- agent: dummy
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branch_init: human/pez/leach
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- agent: dummy
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branch_init: human/pez/leachpmc
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- agent: dummy
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branch_init: human/pez/littlebrother
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- agent: dummy
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branch_init: human/pez/littleevilbrother
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- agent: dummy
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branch_init: human/pez/mako
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- agent: dummy
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branch_init: human/tibola/markiv
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- agent: dummy
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branch_init: human/zcjerry229/markrobo
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- agent: dummy
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branch_init: human/pez/marshmallow
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- agent: dummy
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branch_init: human/mgalushka/maximbot
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- agent: dummy
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branch_init: human/gjgomez/mb2
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- agent: dummy
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branch_init: human/denssle/megaborsten
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- agent: dummy
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branch_init: human/team488/meow
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- agent: dummy
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branch_init: human/andrekorol/myfirstkiller
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- agent: dummy
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branch_init: human/robo_code/myfirstrobot
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- agent: dummy
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branch_init: human/luke_f_w/nagisphere
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- agent: dummy
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branch_init: human/andr3eee1/npcomplete
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- agent: dummy
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branch_init: human/iagomonteiro13579/npcsniper
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- agent: dummy
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branch_init: human/andrekorol/oppswantmedead
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- agent: dummy
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branch_init: human/pez/paolo
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- agent: dummy
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branch_init: human/kcanida/pikachu
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- agent: dummy
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branch_init: human/pez/poet
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- agent: dummy
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branch_init: human/pmontp19/propiavancat
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- agent: dummy
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branch_init: human/pez/pugilist
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- agent: dummy
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branch_init: human/gabriel_lw/quadwall
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- agent: dummy
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branch_init: human/robo_code/ramfire
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- agent: dummy
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branch_init: human/robo_code/regullarmonk
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- agent: dummy
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branch_init: human/g_otn/reimu
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- agent: dummy
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branch_init: human/sacdalance/robrrrat
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- agent: dummy
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branch_init: human/miradoconsulting/roleksii
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- agent: dummy
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branch_init: human/avsthiago/sadbot
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- agent: dummy
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branch_init: human/alexbay218/shreker
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- agent: dummy
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branch_init: human/robo_code/sittingduck
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- agent: dummy
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branch_init: human/pez/smallpoet
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- agent: dummy
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branch_init: human/robo_code/spinbot
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- agent: dummy
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branch_init: human/jonharder/starterbot
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- agent: dummy
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branch_init: human/mgalushka/supercorners
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- agent: dummy
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branch_init: human/mgalushka/supercrazy
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- agent: dummy
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branch_init: human/mgalushka/supermercutio
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- agent: dummy
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branch_init: human/mgalushka/superramfire
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- agent: dummy
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branch_init: human/mgalushka/superspinbot
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- agent: dummy
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branch_init: human/mgalushka/supertracker
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- agent: dummy
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branch_init: human/mgalushka/superwalls
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- agent: dummy
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branch_init: human/pez/swiffer
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- agent: dummy
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branch_init: human/tannerrogalsky/tannerbot1
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- agent: dummy
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branch_init: human/alpian/tarektank
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- agent: dummy
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branch_init: human/technischeinformatica/tearsofsteel
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- agent: dummy
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branch_init: human/pranav_prakash/thecarver
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- agent: dummy
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branch_init: human/barriosnahuel/tirolio
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- agent: dummy
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branch_init: human/pez/tityus
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- agent: dummy
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branch_init: human/robo_code/tracker
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- agent: dummy
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branch_init: human/robo_code/trackfire
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- agent: dummy
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branch_init: human/muzardo/trianglehunter
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- agent: dummy
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branch_init: human/rafaeljdesa/ultron
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- agent: dummy
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branch_init: human/ur4n0_235/ur4no
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- agent: dummy
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branch_init: human/robo_code/velocirobot
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- agent: dummy
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branch_init: human/john_paul_r/vergere
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- agent: dummy
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branch_init: human/pez/vertileach
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- agent: dummy
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branch_init: human/pez/vertimicro
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- agent: dummy
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branch_init: human/robo_code/walls
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- agent: dummy
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branch_init: human/pez/wallspoet
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- agent: dummy
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branch_init: human/pez/wallspoetas
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- agent: dummy
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branch_init: human/pez/wallspoethaiku
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- agent: dummy
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branch_init: human/admiralrasmussen/wavesurfing
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- agent: dummy
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branch_init: human/alexjamesmacpherson/wilde
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- agent: dummy
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branch_init: human/joaocarpim/wrecker
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prompts:
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game_description: RoboCode ladder

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