From e85ea2fa2cc0335a4621918837f1712b110203d1 Mon Sep 17 00:00:00 2001
From: umsangdon <umsangdon@gmail.com>
Date: Mon, 14 Sep 2026 12:56:02 +0900
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Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BW6Jdsh18WPtYUR6THZJqn
---
 B09_Estimation/B09_Estimation_Chisel.py | 5 ++++-
 resources/tester/test_b09_chisel.py     | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/B09_Estimation/B09_Estimation_Chisel.py b/B09_Estimation/B09_Estimation_Chisel.py
index 4463468a..9b5d9cca 100644
--- a/B09_Estimation/B09_Estimation_Chisel.py
+++ b/B09_Estimation/B09_Estimation_Chisel.py
@@ -20,8 +20,11 @@ CHISEL_CODE = "AR-M-a2926452"
 #: 치즐을 붙이는 기계 — 대형브레이커(분류 0230).
 BREAKER_PREFIX = "0230-"
 CHISEL_MISSING = "치즐소모량(본/hr) — 치즐 단가 없음(「자재 단가」 탭에서 넣으면 붙음)"
+#: ⚠ 선례를 함께 적음(2026-09-14 브레인 판정) — 사용자가 「같은 방식으로 유추할지」를 스스로 고르게.
 CHISEL_AVERAGE_NOT_GIVEN = (
-    "치즐(평균 갈래) — 원문 [주]① 은 Q 평균만 정하고 치즐 평균은 안 줌(지어내지 않음)"
+    "치즐(평균 갈래) — 원문 9-4-1 [주]① 은 Q 평균만 정하고 치즐 평균은 안 줌(지어내지 않음)"
+    " · 참고 선례: 9-12-3 발파암 표는 같은 자리에서 치즐 평균"
+    " 「(0.006+0.02+0.03)/3 = 0.018」 을 스스로 적음 — 같은 방식으로 볼지는 판정 대기"
 )
 
 
diff --git a/resources/tester/test_b09_chisel.py b/resources/tester/test_b09_chisel.py
index 75de80e3..4e4d9d06 100644
--- a/resources/tester/test_b09_chisel.py
+++ b/resources/tester/test_b09_chisel.py
@@ -46,6 +46,7 @@ def test_칸을_채우면_치즐_못_붙은_줄이_풀린다() -> None:
         "FP-09-04-01": [left["FP-09-04-01"][0]]
     }
     assert "평균" in left["FP-09-04-01"][0]
+    assert "9-12-3" in left["FP-09-04-01"][0] and "0.018" in left["FP-09-04-01"][0]  # 선례
     whole = [code for code in CHISEL_ITEMS if not filled.unattached.get(code)]
     assert len(whole) >= 12, (
         whole