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{"type":"item.completed","item":{"id":"item_1","type":"agent_message","text":"```python\nimport json, numpy as np, collections\ngames=json.load(open(\"/work/pass_1/games.json\"))\nboards=np.load(\"/work/pass_1/boards.npy\")\nN=[[] for _ in range(81)]\nfor p in range(81):\n    r,c=divmod(p,9)\n    N[p]=[rr*9+cc for rr,cc in [(r-1,c),(r+1,c),(r,c-1),(r,c+1)]\n          if 0<=rr<9 and 0<=cc<9]\ndef groups(b):\n    seen=set(); out=[]\n    for p in range(81):\n        if not b[p] or p in seen: continue\n        stones={p}; stack=[p]; seen.add(p); libs=set()\n        while stack:\n            q=stack.pop()\n            for z in N[q]:\n                if b[z]==0: libs.add(z)\n                elif b[z]==b[p] and z not in seen:\n                    seen.add(z); stones.add(z); stack.append(z)\n        out.append((int(b[p]),stones,libs))\n    return out\ndef show(b):\n    print(\"\\n\".join(\"\".join(\".XO\"[{0:0,1:1,-1:2}[int(x)]] for x in row)\n                    for row in b.reshape(9,9)))\nstats=collections.Counter()\nexamples=[]\nfor gi,g in enumerate(games):\n    if g[\"opponent\"]!=\"strong\": continue\n    me=1 if g[\"net_color\"]==\"black\" else -1\n    for t,m in enumerate(g[\"moves\"]):\n        before=boards[gi,t-1] if t else np.zeros(81,dtype=np.int8)\n        after=boards[gi,t]\n        if m[\"by\"]==\"net\":\n            caps=collections.Counter()\n            for col,st,libs in groups(before):\n                if col==-me and len(libs)==1:\n                    caps[next(iter(libs))]+=len(st)\n            if caps:\n                stats[\"capture_available\"]+=1\n                if m[\"move\"] in caps: stats[\"capture_taken\"]+=1\n                elif not any(a in caps for a,p in m[\"top5\"]):\n                    stats[\"capture_absent_top5\"]+=1\n        else:\n            lost=int(np.sum((before==me)&(after!=me)))\n            if lost>=3:\n                stats[\"loss_events_3plus\"]+=1\n                prev=g[\"moves\"][t-1] if t else None\n                preprev=boards[gi,t-2] if t>=2 else np.zeros(81,dtype=np.int8)\n                threatened=[(len(st),sorted(libs)) for col,st,libs in groups(preprev)\n                            if col==me and len(libs)==1]\n                examples.append((lost,gi,t,prev,threatened,preprev.copy()))\nprint(dict(stats))\nfor lost,gi,t,prev,threatened,b in sorted(examples,reverse=True,key=lambda x:x[0])[:8]:\n    print(\"\\nCAPTURED\",lost,\"game\",gi,\"ply\",t,\"our previous move\",prev,\n          \"prior own ataris\",threatened)\n    show(b)\n```"}}
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