diff --git a/.trellis/tasks/04-15-liuyao-algorithm-fix/prd.md b/.trellis/tasks/archive/2026-04/04-15-liuyao-algorithm-fix/prd.md
similarity index 100%
rename from .trellis/tasks/04-15-liuyao-algorithm-fix/prd.md
rename to .trellis/tasks/archive/2026-04/04-15-liuyao-algorithm-fix/prd.md
diff --git a/.trellis/tasks/04-15-liuyao-algorithm-fix/task.json b/.trellis/tasks/archive/2026-04/04-15-liuyao-algorithm-fix/task.json
similarity index 72%
rename from .trellis/tasks/04-15-liuyao-algorithm-fix/task.json
rename to .trellis/tasks/archive/2026-04/04-15-liuyao-algorithm-fix/task.json
index ca5057e..21b057e 100644
--- a/.trellis/tasks/04-15-liuyao-algorithm-fix/task.json
+++ b/.trellis/tasks/archive/2026-04/04-15-liuyao-algorithm-fix/task.json
@@ -19,11 +19,26 @@
   "commit": null,
   "pr_url": null,
   "subtasks": [
-    {"name": "空亡判断修复", "status": "completed"},
-    {"name": "暗动判断重写", "status": "completed"},
-    {"name": "月破独立标注", "status": "completed"},
-    {"name": "动不为空旺不为空", "status": "completed"},
-    {"name": "单元测试编写", "status": "completed"}
+    {
+      "name": "空亡判断修复",
+      "status": "completed"
+    },
+    {
+      "name": "暗动判断重写",
+      "status": "completed"
+    },
+    {
+      "name": "月破独立标注",
+      "status": "completed"
+    },
+    {
+      "name": "动不为空旺不为空",
+      "status": "completed"
+    },
+    {
+      "name": "单元测试编写",
+      "status": "completed"
+    }
   ],
   "children": [],
   "parent": null,