{"abstract":"Sequential combat suppresses a defeated fighter’s committed strike.","category":"Game simulation rules","checks":6,"contract":"Both fighters begin alive with positive HP; nonnegative attack values land simultaneously. Return remaining HP clamped at zero.","evaluation_group":"model-f72ae2348d270090","failed_approach":"Allowing a retaliation only when the first target survives still resolves ties asymmetrically.","family":"z-games-simultaneous-strikes","id":"FA-11646","implementations":{"attempt":{"sha256":"975adbfc68bafb2d51d20634e81a414e0cf6c623cd5418a0909f0b4b424b1339","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(hp_a, hp_b, attack_a, attack_b):\n    return [max(0,hp_a-attack_b),max(0,hp_b-(attack_a if hp_a>attack_b else 0))]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('mutual defeat',solve(N,N,N,N),[0,0])\ncheck('first fighter lethal',solve(N+3,N,N,1),[N+2,0])\ncheck('second fighter lethal',solve(N,N+3,1,N),[0,N+2])\ncheck('zero attacks',solve(N,N,0,0),[N,N])\ncheck('both survive',solve(N+4,N+5,2,3),[N+1,N+3])\ncheck('overkill clamps',solve(N,N,N+8,N+9),[0,0])\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"broken":{"sha256":"625f9ab629bc1afb8be25c83eac2673c0adc2110fd028ac8c1d838654331c67f","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(hp_a, hp_b, attack_a, attack_b):\n    return [max(0,hp_a-(attack_b if hp_b>attack_a else 0)),max(0,hp_b-attack_a)]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('mutual defeat',solve(N,N,N,N),[0,0])\ncheck('first fighter lethal',solve(N+3,N,N,1),[N+2,0])\ncheck('second fighter lethal',solve(N,N+3,1,N),[0,N+2])\ncheck('zero attacks',solve(N,N,0,0),[N,N])\ncheck('both survive',solve(N+4,N+5,2,3),[N+1,N+3])\ncheck('overkill clamps',solve(N,N,N+8,N+9),[0,0])\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"fixed":{"sha256":"4d53599fdb6370a050d8701720d4895117f223c8ddd883398817219e241f38cb","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(hp_a, hp_b, attack_a, attack_b):\n    return [max(0,hp_a-attack_b),max(0,hp_b-attack_a)]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('mutual defeat',solve(N,N,N,N),[0,0])\ncheck('first fighter lethal',solve(N+3,N,N,1),[N+2,0])\ncheck('second fighter lethal',solve(N,N+3,1,N),[0,N+2])\ncheck('zero attacks',solve(N,N,0,0),[N,N])\ncheck('both survive',solve(N+4,N+5,2,3),[N+1,N+3])\ncheck('overkill clamps',solve(N,N,N+8,N+9),[0,0])\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"}},"limitations":"Controlled rules-only simulation; not a complete game engine. This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.","method":"Deterministic executable model with adversarial boundary fixtures.","provenance":{"created_by":"Failure Map","dependencies":"Python standard library","family":"z-games-simultaneous-strikes","generated_at":"2026-09-29T14:38:49.825529+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"A deterministic game-rule model isolates this rule interaction for regression testing.","repair":"Apply both committed attacks to the pre-round participants.","root_cause":"The second attack is conditioned on surviving the first.","sha256":"02491ec546e66693c82373201f9b25748244664bfd7411c5a320f1ca6b8685bb","title":"Sequential combat suppresses a defeated fighter’s committed strike · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":38.601,"exit_code":1,"observations":[{"actual":[0,1],"check":"mutual defeat","expected":[0,0],"passed":false},{"actual":[3,0],"check":"first fighter lethal","expected":[3,0],"passed":true},{"actual":[0,4],"check":"second fighter lethal","expected":[0,3],"passed":false},{"actual":[1,1],"check":"zero attacks","expected":[1,1],"passed":true},{"actual":[2,4],"check":"both survive","expected":[2,4],"passed":true},{"actual":[0,1],"check":"overkill clamps","expected":[0,0],"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"mutual defeat\", \"actual\": [0, 1], \"expected\": [0, 0], \"passed\": false}, {\"check\": \"first fighter lethal\", \"actual\": [3, 0], \"expected\": [3, 0], \"passed\": true}, {\"check\": \"second fighter lethal\", \"actual\": [0, 4], \"expected\": [0, 3], \"passed\": false}, {\"check\": \"zero attacks\", \"actual\": [1, 1], \"expected\": [1, 1], \"passed\": true}, {\"check\": \"both survive\", \"actual\": [2, 4], \"expected\": [2, 4], \"passed\": true}, {\"check\": \"overkill clamps\", \"actual\": [0, 1], \"expected\": [0, 0], \"passed\": false}], \"passed\": false}\n"},"broken":{"elapsed_ms":38.464,"exit_code":1,"observations":[{"actual":[1,0],"check":"mutual defeat","expected":[0,0],"passed":false},{"actual":[4,0],"check":"first fighter lethal","expected":[3,0],"passed":false},{"actual":[0,3],"check":"second fighter lethal","expected":[0,3],"passed":true},{"actual":[1,1],"check":"zero attacks","expected":[1,1],"passed":true},{"actual":[2,4],"check":"both survive","expected":[2,4],"passed":true},{"actual":[1,0],"check":"overkill clamps","expected":[0,0],"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"mutual defeat\", \"actual\": [1, 0], \"expected\": [0, 0], \"passed\": false}, {\"check\": \"first fighter lethal\", \"actual\": [4, 0], \"expected\": [3, 0], \"passed\": false}, {\"check\": \"second fighter lethal\", \"actual\": [0, 3], \"expected\": [0, 3], \"passed\": true}, {\"check\": \"zero attacks\", \"actual\": [1, 1], \"expected\": [1, 1], \"passed\": true}, {\"check\": \"both survive\", \"actual\": [2, 4], \"expected\": [2, 4], \"passed\": true}, {\"check\": \"overkill clamps\", \"actual\": [1, 0], \"expected\": [0, 0], \"passed\": false}], \"passed\": false}\n"},"fixed":{"elapsed_ms":39.373,"exit_code":0,"observations":[{"actual":[0,0],"check":"mutual defeat","expected":[0,0],"passed":true},{"actual":[3,0],"check":"first fighter lethal","expected":[3,0],"passed":true},{"actual":[0,3],"check":"second fighter lethal","expected":[0,3],"passed":true},{"actual":[1,1],"check":"zero attacks","expected":[1,1],"passed":true},{"actual":[2,4],"check":"both survive","expected":[2,4],"passed":true},{"actual":[0,0],"check":"overkill clamps","expected":[0,0],"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"mutual defeat\", \"actual\": [0, 0], \"expected\": [0, 0], \"passed\": true}, {\"check\": \"first fighter lethal\", \"actual\": [3, 0], \"expected\": [3, 0], \"passed\": true}, {\"check\": \"second fighter lethal\", \"actual\": [0, 3], \"expected\": [0, 3], \"passed\": true}, {\"check\": \"zero attacks\", \"actual\": [1, 1], \"expected\": [1, 1], \"passed\": true}, {\"check\": \"both survive\", \"actual\": [2, 4], \"expected\": [2, 4], \"passed\": true}, {\"check\": \"overkill clamps\", \"actual\": [0, 0], \"expected\": [0, 0], \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}