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The Hundred Years' War Diplomacy variant of diplomacy follows the most of the rules as standard diplomacy with a modified map. The game was designed to allow a balanced three-player variant for quick games when 7 players aren't available. The game is called Hundred3 because it is designed for three players.

Hundred3 simulates the end of the Hundred Years' War between France, England and Burgundy. The game starts in 1425, at the height of Anglo-Burgundian gains versus France.

The starting positions are :

B-Burgundy                    E-England
A Dijon                       A Calais
A Flanders                    A Guyenne
A Luxembourg                  A Normandy
F Holland                     F English Channel
                              F London

A Dauphine
A Orleanais
A Paris
A Toulouse
There are 17 supply centres, so you need 9 to win

Full Rules and credits follow:

  • Hundred Years War Diplomacy, by Andy Schwarz
  • The rules of "standard" Diplomacy are valid, unless specifically replaced or amended by these rules
  • The standard map is replaced by the "Hundred" variant map. Northumbria has 2 coasts, West and East. Aragon has 2 coasts, North and South. Castile is not divided into coasts, so fleets entering Castile from Biscay can then proceed to the Mediterranean and vice versa.
  • All references in the "standard" rules to specific powers, provinces, locations, and seasons do not apply to "Hundred".
  • The game begins in 1425. Each turn represents 5 "real time" years, and has a movement phase followed by a retreat phase. Alternating turns will have an adjustment phase (after retreats if required), the first being in 1430. The Judge program does not follow this convention, so on the Judge Fall 1425 follows Spring 1425, etc.
  • There are 17 supply centers on the board. The winner is the power which holds 9 or more supply centers during an adjustment phase.
  • There are three great powers. The starting units are as follows:
         B-BURGUNDY          E-ENGLAND              F-FRANCE
         A Dijon             A Calais               A Dauphine
         A Luxembourg        A Guyenne              A Orleanais
         A Flanders          A Normandy             A Paris
         F Holland           F Devon                A Toulouse
                             F London               
  • A power may build in any vacant supply center it owns during an adjustment phase: there are no permanent "home centers". For example, France may build in London if it is vacant, and France owns it and is eligible for a build.
  • Units (armies and fleets) may move or give support from London to Calais or vice versa regardless of the presence of a fleet in the Strait of Dover. Examples:
        E: LON-CAL. B: FLA-CAL.  Result: all bounce.
        E: LON-CAL, DOV s LON-CAL.  B: FLA-CAL.  Result: LON-CAL succeeds.
        E: LON s CAL, CAL H. F: PAR-CAL, DOV s PAR-CAL.  Result: CAL holds
  • The full names and standard abbreviations for all locations (supply centers marked with *) are:
            Alsace          als             Irish Sea       iri
            Anglia          ang             Limousin        lim
            Anjou           anj             London *        lon
            Aragon          ara             Lorraine        lor
            Atlantic        atl             Luxembourg *    lux
            Biscay          bis             Mediterranean   med
            Bristol Channel bch             Minch           min
            Brittany *      brt             Normandy *      nmd
            Calais *        cal             North Sea       nth
            Cantons *       can             Northumbria     num
            Castile *       cas             Orleanais *     orl
            Charolais       cha             Paris *         par
            Devon *         dev             Poitou          poi
            Dauphine *      dau             Provence        pro
            Dijon *         dij             Savoy           sav
            Strait of Dover dov             Scotland *      sco
            English Channel ech             The Wash        was
            Flanders *      fla             The Pale        pal
            Friesland       fri             Toulouse *      tou
            Guyenne *       guy             Wales           wal
            Holland   *     hol
Note that all of these use the first three letters of a province with the exception of:
bch   Bristol Channel
brt   Brittany
ech   English Channel
nmd   Normandy
num   Northumbria
nth   North Sea
dov   Strait of Dover
was   The Wash
pal   The Pale
Note, Hundred3 adds The Pale, The Atlantic, Anjou, Charolais, and Alsace, and removes the French center in Provence (moving it to Castile as a neutral), but is otherwise unchanged from Hundred V1.1.

Unlike Standard Diplomacy, Hundred does not fully distinguish between home supply centers and initially neutral supply centers. All but 4 supply centers (and all non-SCs) are named for regions rather than cities. This is to represent the importance of the duchies and counties for which the participants in the Hundred Years' War fought. In addition, the designation between home and neutral SCs is of less importance since all owned/unoccupied centers can build units.

The four exceptions to the general rule of naming SCs for provinces are the 3 capital cities of London, Paris and Dijon, and the city of Calais. Calais kept a city name because of the unique importance of the port of Calais within Artois, but Artois and art are also valid names.

Some provinces which are now named for regions were originally named for cities when hundred was first tested. These names and abbreviations have been left coded into the judge for old-timers to use. Thus Holland can also be referred to as Amsterdam(ams), Flanders as Antwerp (ant), Orleanais as Orleans, and Devon as Plymouth (ply).

The name of Aquitaine was changed to Guyenne to represent the nomenclature in the 15th century, but Aquitaine (aqu) is still a valid name for judge purposes. In addition, some non-SC centers can also be referred to by old-style names: Lorraine was Swabia (swa), Aragon was Catalonia (cat), Castile was Iberia (ibe), and Northumbria was Northumberland (the latter is really a much smaller subset of the former).

You'll be able to tell an early Hundred player if he suggests A Aqu-Cat instead of A Guy-Ara.

The variant was designed by Andy Schwarz with help from Eric Coffey, as well as fabulous input from the hundreds of players of the original Hundred. Larry Richardson was the JK who dealt with us to get it coded up originally. Dave Kleiman was kind enough to deal with this variant during some trying times as we ported over to USIN, and Nick Fitzpatrick played a major role in revising the initial set-up to V1.1. Version 2 was tested by Nic Chilton and Doug Essinger-Hileman, and the slight change to this Version (Hundred3) was helped by David Norman, with corroborating input from Kristian Dorph Petersen.

Original Hundred Variant by Andy Schwarz copyright 1995. Hundred3 by Andy Schwarz, copyright 1997.

Coded for the Judge by : Andy Schwarz (with significant aid from David Norman and his mapmaker program)

Diplomacy, of course, is copyright Avalon Hill, Baltimore, MD, 1976!