Record board dimensions (7.5in square) and absence of errata sheet

Owner-measured: sector boards are 7.5in to a side (1.5in per space);
no errata sheet in the 6e box. Closes the physical checklist except
the optional counter-sheet inventory.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

packages/engine/data/VERIFICATION.md

@@ -51,10 +51,10 @@ each layout appears exactly once; perimeter openings verified on all 24 edges; t
 shipped in the base box (boards unlabeled; art style suggests E+F are the Exp1 pair),
 which layout was replaced before 7e, board backs.
 
-## 📐 Remaining — physical odds and ends
+## ✅ Done — physical odds and ends (owner-reported, 2026-08-15)
 
-- [ ] **Physical dimensions** of a sector board (one photo next to a ruler/tape).
-- [ ] **Errata sheet** — check the box for any loose insert (the 5e shipped one).
+- ~~Physical dimensions~~ — sector boards are **7.5 in to a side** (1.5 in per space).
+- ~~Errata sheet~~ — **none** in the owner's 6e box.
 - [ ] Optional: token/counter-sheet photo (inventory is undocumented; the rulebook
       confirms "two counter sheets" but not their contents).
 

packages/engine/data/boards.json

@@ -43,7 +43,11 @@
         ]
       }
     ],
-    "provenance": "Layouts A-F are the six distinct Chessex-era mazes (4 ship in the 6e base box + 2 in Expansion Set #1; WHICH four are base is unknown - boards are unlabeled). The 5th/6th/7th editions use the same layouts (5e vs 6e confirmed by machine comparison; 7e likely, and per Jolly's site one 6e board layout was replaced before the 7e printing - which one is unidentified)."
+    "provenance": "Layouts A-F are the six distinct Chessex-era mazes (4 ship in the 6e base box + 2 in Expansion Set #1; WHICH four are base is unknown - boards are unlabeled). The 5th/6th/7th editions use the same layouts (5e vs 6e confirmed by machine comparison; 7e likely, and per Jolly's site one 6e board layout was replaced before the 7e printing - which one is unidentified).",
+    "physical": {
+      "sectorSize": "7.5 x 7.5 inches (owner-measured, 2026-08-15)",
+      "note": "Each 5x5 sector board is 7.5in square, so spaces are 1.5in. No errata sheet was included in the owner's 6e box. Interesting: the fan reproduction print size of 7.5in noted in research matched exactly."
+    }
   },
   "boards": [
     {

research/boards-6e.md

@@ -68,8 +68,9 @@ are saved in `research/images/`.
 - Boards are **single-sided**, black-and-white line art in 6e. *(Single-sidedness:
   LIKELY — no photo or listing shows a printed back; the double-sided "classic/new"
   boards are an 8th-edition (FFG) feature.)*
-- Physical size: UNCERTAIN. A fan who reproduced them printed at 7.5 in square; the actual
-  Chessex boards' dimensions need measuring from the physical copy.
+- Physical size: **CONFIRMED 7.5 in square** (owner-measured, 2026-08-15; 1.5 in per space).
+  The fan reproduction's 7.5 in print size was exactly right. The owner's box also contains
+  **no errata sheet** (unlike the 5th edition).
 
 ## 3. The six maze layouts (CONFIRMED, with caveats noted)