18OE — Map Implementation Status

For full rulebook picture → Rulebook Coverage · All open gaps → Open for Alpha

Bar weighted by section effort (L1 data = 1×).

Map & Components

46% · 23 / 37 items across map sections

Done 23

Needs PR 0

Partial 0

To do 14

Overall Status

Area	Status	Notes
Grid coverage	✓	651 blue hexes
Regional home city coordinates	✓	All 24
National region hex lists	✓	All 8 (UK, SC, FR, PHS, AH, IT, SP, RU) — `NATIONAL_REGION_HEXES_COMPLETE = true`
Location names	✓	All 255
Sea zones	✓	19 named zones with hex lists; borders encoded as `type:province`; port stubs on 37 sea tiles
Custom tile codes	✓	OE1–OE8, OE12–OE18, OE23–OE44
Standard tile quantities	✓	Complete
Terrain costs	✓	UK, FR, SP, SC, Alps, IT, Adriatic, Carpathians, Balkans, Caucasus, river crossings
Station revenues	✓	All 255 named locations have correct starting revenue
Pre-printed yellows	✓	Liverpool J25, Manchester J27, Athinai AE72
Pre-printed whites (path edges)	~	U24 Bordeaux: no edges (BUG-028); N31 Lille: edge 0 missing (BUG-029). M28/AA82/I20/O28/X33 edges added — verify moved to `yellow:`
Port icons	✓	33 instances in map.rb; public/private classification is beta scope
Ferry paths / distances	?	Outstanding
Double-town tile orientations	?	OE9–11, OE20–22 outstanding
Logo SVGs	✓	All 36 corporations (minors A–M + all majors)

Map & Components

651-hex grid

19 red off-board hexes

Terrain costs

255 location names

Station slot revenues

Pre-printed yellow tiles

Pre-printed ferry paths

Sea zones (19)

Port icons

Logo SVGs

Province borders + partition engine

Verify M28 London / AA82 Constantinople / I20 Dublin / O28 Le Havre / X33 Marseille are in `yellow:` section in map.rb (edges added in 18oe_testing; section move not yet confirmed)

N31 Lille second token slot for White Cliffs Ferry — pre-printed Lille tile needs a secondary station slot; confirm against physical map

OE9–OE11 — green double-town path edge orientations needed

OE20–OE22 — brown double-town path edge orientations needed

OE19 — tile type unknown; must be identified and defined

Verify standard tile quantities against physical tile manifest

Audit OE-specific tile upgrade paths against physical manifest

Ferry distance numbers — per-zone crossing distances needed for cross-water cost calculations (§8d); sea zone borders themselves are complete

**Ferry sea hexes** — partial work exists; still needed: N29/G22/N25/I22/I24/AE12/AF13/AB21/AB23/AB25

Ferry route engine override — `game.rb` override to whitelist exits toward blue hexes that carry a matching pre-printed path

**Lille↔London ferry** — tiles connect correctly; all other ferry routes blocked pending L2 engine override

**Port sea stubs** `[BETA]` — blue tiles at port entry points use `junction;path=a:X,b:_0,terminal:1` as connectors between land port paths and sea ferry routes; model: land port → stub → sea ferry hexes → stub → land port; implement per port once ferry routing engine override is in place; public vs private port access distinction applies here (see §8d)

**G30 inland port** `[BETA]` — G30 currently has `junction;path=a:4,b:_0` (missing `terminal:1`); inland ports differ from coastal port stubs in routing rules — define and document the distinction before implementing; add `terminal:1` as part of this work

Track Laying

OE1–OE3 yellow double-town

OE4–OE8 yellow city

OE12–OE18 green city

OE23–OE33 brown city

OE34–OE44 gray city

Tile point budgets

Tile point costs

TILE_UPGRADES_MUST_USE_MAX_EXITS

Metropolis upgrade labels

First-OR green tile exception (§11.1.9) — Phase 2 only, first OR after float: if RR cannot connect home token to any town/city via land or ferry without a sea crossing, it may lay one non-city green tile at cost of all remaining tile points; requires ≥1 tile point; cannot be exploited deliberately

Token Placement

Zone restriction

Connectivity check

Nationals skip token step

Open Issues

No open map bugs.

Section	Missing / Partial	Scope
Map & Components
	Verify M28 London / AA82 Constantinople / I20 Dublin / O28 Le Havre / X33 Marseille are in `yellow:` section in map.rb (edges added in 18oe_testing; section move not yet confirmed)	alpha
	N31 Lille second token slot for White Cliffs Ferry — pre-printed Lille tile needs a secondary station slot; confirm against physical map	alpha
	OE9–OE11 — green double-town path edge orientations needed	alpha
	OE20–OE22 — brown double-town path edge orientations needed	alpha
	OE19 — tile type unknown; must be identified and defined	alpha
	Verify standard tile quantities against physical tile manifest	alpha
	Audit OE-specific tile upgrade paths against physical manifest	alpha
	Ferry distance numbers — per-zone crossing distances needed for cross-water cost calculations (§8d); sea zone borders themselves are complete	beta
	Ferry sea hexes — partial work exists; still needed: N29/G22/N25/I22/I24/AE12/AF13/AB21/AB23/AB25	beta
	Ferry route engine override — `game.rb` override to whitelist exits toward blue hexes that carry a matching pre-printed path	beta
	Lille↔London ferry — tiles connect correctly; all other ferry routes blocked pending L2 engine override	beta
	Port sea stubs `[BETA]` — blue tiles at port entry points use `junction;path=a:X,b:_0,terminal:1` as connectors between land port paths and sea ferry routes; model: land port → stub → sea ferry hexes → stub → land port; implement per port once ferry routing engine override is in place; public vs private port access distinction applies here (see §8d)	beta
	G30 inland port `[BETA]` — G30 currently has `junction;path=a:4,b:_0` (missing `terminal:1`); inland ports differ from coastal port stubs in routing rules — define and document the distinction before implementing; add `terminal:1` as part of this work	beta
Track Laying
	First-OR green tile exception (§11.1.9) — Phase 2 only, first OR after float: if RR cannot connect home token to any town/city via land or ferry without a sea crossing, it may lay one non-city green tile at cost of all remaining tile points; requires ≥1 tile point; cannot be exploited deliberately	alpha

Current state of lib/engine/game/g_18_oe/map.rb. Tracks what is implemented, what is verified against the physical map, and what is still outstanding.

Map orientation: LAYOUT = :pointy, AXES = { x: :number, y: :letter } Coordinate system: rows A–Z then AA–AH (34 rows); columns 2–88.

Grid Bounds

A:  42-52, 66-74          B:  43-57, 63-81
C:  42-58, 64-66, 72-82   D:  41-57, 67-85
E:  24-28, 42-44, 48-58, 66-86
F:  23-29, 49-55, 69-85   G:  16-20, 24-28, 44-46, 50-56, 64-86
H:  15-21, 25-29, 43-47, 51-55, 63-87
I:  14-20, 26-28, 44-52, 64-86
J:  13-19, 23-29, 45-49, 63-87
K:  22-30, 40-50, 54-86   L:  23-31, 37-87
M:  22-30, 34-86          N:  31-85
O:  24, 28-86             P:  19-87
Q:  20-86                 R:  23-87
S:  24-86                 T:  23-81
U:  6-12, 22-80           V:  5-47, 51-79
W:  6-48, 54-78           X:  5-29, 33-37, 43-49, 55-77
Y:  2-28, 44-50, 56-78    Z:  3-27, 41, 45-51, 61-79
AA: 2-22, 48-54, 62-86    AB: 1-19, 27, 39-41, 51-57, 63-71, 77, 83-85
AC: 6-20, 38-40, 54-58, 64-68, 76-86
AD: 5-17, 39, 55, 65-71, 79-87
AE: 52, 68-72, 80-86      AF: 49-53, 67-69, 81-87
AG: 50-52, 68-70

Red (Off-Board) Hexes

19 red hexes. (A40 → blue/Skagerrak; E88 → removed entirely; AH87 → blue/no zone.)

A:54 A:56    North Sweden (×2)         B:41 B:83    Bergen, Arkhangelsk
D:25         Scottish Highlands        F:87 G:88    Moskva (×2; G88 = gray through-track)
N:1 N:87     New York, Kharkov         S:88 T:87    Sevastopol (×2; S88 = gray through-track)
Z:1          Lisboa (2 station slots)  AB:87        Levant
AD:1         North Africa & Americas   AF:5 AF:11 AF:25   Casablanca, Melilla, Alger
AG:40 AG:88  Tunis, Alexandria & Suez

Off-Board Revenue Values

All best-guess — verify against physical map.

Hex	Name	Revenues (y/g/b/gray)	Path edges	Notes
A54	~~North Sweden~~	—	1→4	Gray through-track hex
A56	North Sweden	30/50/80/100	0, 1, 4, 5
B41	Bergen	30/60/80/120	1, 3, 4
B83	Arkhangelsk	30/50/60/60	none	confirm isolated or needs edge
D25	Scottish Highlands	20/40/50/50	0, 5
F87	Moskva	30/50/80/100	0, 1, 2, 5
G88	~~Moskva~~	—	0→2	Gray through-track hex
N1	New York	—/60/100/160	5	no yellow phase
N87	Kharkov	30/40/60/80	0, 1, 2
S88	~~Sevastopol~~	—	0→1	Gray through-track hex
T87	Sevastopol	30/40/60/80	1
Z1	Lisboa (2 slots)	30/40/60/80	3, 4	`city=revenue:0 ×2` also set
AB87	Levant	30/50/80/120	1, 2
AD1	North Africa & Americas	—/40/80/120	4	no yellow phase
AF5	Casablanca	30/40/60/80	3
AF11	Melilla	30/40/40/40	4
AF25	Alger	30/40/60/100	2, 3
AG40	Tunis	30/40/50/80	3, 4
AG88	Alexandria & Suez	—/50/80/120	1	no yellow phase

Pre-Printed Tiles

✓ Complete

Hex	City	Tile string
J25	Liverpool	`city=revenue:30;label=Y;path=a:2,b:_0;path=a:_0,b:4`
J27	Manchester	`city=revenue:20;upgrade=cost:30,terrain:mountain;path=a:1,b:_0;path=a:_0,b:4`
AE72	Athinai	`city=revenue:20;path=a:1,b:_0;path=a:5,b:_0`

~ Partial / outstanding

Hex	City	Current string	Status
U24	Bordeaux	`city=revenue:10;icon=image:port,sticky:1`	BUG-028 — no path edges at all
N31	Lille	`city=revenue:10;label=Y;border=edge:2,type:impassable;path=a:1,b:_0`	BUG-029 — edge 0 missing

~ Verify white: → yellow: move

Edges have been added to these hexes in 18oe_testing; confirm they are now in the yellow: section (not white:) in map.rb:

Hex	City	Verified edges
M28	London	edge 5 present — verify edge and section
AA82	Constantinople	edge 2 present — verify edge and section
I20	Dublin	edge 4 present — verify edge and section
O28	Le Havre	edge 1 present — verify edge and section
X33	Marseille	edge 5 present — verify edge and section

Sea Zones

19 named zones implemented. Zone borders encoded as border=edge:X,type:province on all boundary edges. Port-entry stubs on 37 sea tiles (junction;path=a:X,b:_0,terminal:1).

✓ All zones: Celtic Sea, North Atlantic Ocean, North Atlantic Silver Coast, Bay of Biscay, English Channel, North Sea, Skagerrak (incl. A40), German Bight, Gulf of Finland, Baltic Sea, Strait of Gibraltar, Balearic Sea, Sea of Sardinia, Tyrrhenian Sea, Adriatic Sea, Aegean Sea, Levantine Sea, Black Sea, Karkinitsky Bay.

Outstanding:

? Ferry paths — start hex+edge, end hex+edge, distance number
? Sea zone distance numbers for cost calculation

National Zone Boundaries

All 8 zones defined. NATIONAL_REGION_HEXES_COMPLETE = true. CITY_NATIONAL_ZONE overrides: Q38 → FR, O52 → PHS. MINOR_EXCLUDED_HOME_CITIES defined.

✓ Stale entries cleaned in 18oe_testing: A40 removed from SC, E88 removed from RU.

Terrain Costs

Carpathians (rows P–T, cols 55–75)

£30: R51, Q70, O50, O68, P57
£45: Q60, Q62, Q64, Q68, R61, R69, N45, O62, P55, T67, T71, T73
£60: O54, R71, S52, S54, T49, T51

Balkans (rows X–AG, cols 55–80)

£30: X65, Z63, Z69, Z75, AA68, AB53, AC66, AD65, AF69, AG50
£45: X57, X61, X63, X67, Y62, Y68, Z61, Z65, Z71, AA64, AA72, AB67, AC54
£60: X67, Z67, AA66, AA86, AB65

Caucasus (rows AA–AF, cols 80–88)

£45: AD81, AD83, AE80, AF83
£60: AA86, AB85, AE82, AE84

River Crossings

£5: E78
£30: N39, P41, K64, K66, L69, L71, L75, L77, M74, M76, M78, M80, N69–N79
£45: K44, N81, O82, AE52
£60: M34, T23, AB77, AC76, AD71, AG70

? Verify against physical map: Caucasus at AA86/AD81–AE84; river routing accuracy; combined terrain hexes (mountain + water).

Custom Tile Codes

✓ Implemented: OE1–OE8, OE12–OE18, OE23–OE44

? Outstanding — orientations unknown (double-town tiles, commented out):

Code	Colour	Qty	Missing
OE9	green	3	edge pair
OE10	green	3	edge pair
OE11	green	3	edge pair
OE20	brown	3	edge pair
OE21	brown	2	edge pair
OE22	brown	6	edge pair
OE19	?	?	tile type (gap between OE18 green and OE20 brown)

? Do OE9–11 upgrade directly to OE20–22?

Ports and Ferry Routes

Item	Status
Port city hexes (public light-blue / private red anchor)	✓ 33 `icon=image:port,sticky:1` instances in map.rb
Ferry path stubs (14+ `junction;path=...,terminal:1` hexes)	✓ Stubs present
Ferry route paths (start hex+edge → end hex+edge, distance)	? Numbers not yet defined
Sea zone distance numbers for cost calculation	? Outstanding
North Sea port authority positions (8)	?
Mediterranean port authority positions (8)	?
White Cliffs Ferry token slot near Lille N31	?
Patronage tiles — fixed city list or game logic only?	?