MDATC: MULTIVERSAL DIPLOMACY ADJUDICATOR TEST CASES

1. INTRODUCTION
2. MULTIVERSAL VARIANT RULES

2.A. TIME TRAVEL
2.B. ORDER NOTATION

3. TEST CASES

3.A. TIMELINE FORKING

1. INTRODUCTION

2. MULTIVERSAL VARIANT RULES

2.A. TIME TRAVEL

2.B. ORDER NOTATION

The order notation in this document is as in DATC, with the following additions for multiversal time travel.

A season within a particular timeline is designated in the format X:Y, where X is the turn (starting from 0 and advancing with each movement phase) and Y is the timeline number (starting from 0 and advancing with each timeline fork).
Adjudication is implied to be done between successive seasons. For example, if orders are listed for 0:0 and then for 1:0, it is implied that the orders for 0:0 were adjudicated.
Units are designated by unit type, province, and season, e.g. "A Munich 1:0". A destination for a move order or support-to-move order is designated by province and season, e.g. "Munich 1:0".
- If season of the ordered unit is not specified, the season is the season to which the orders are being given.
- If the season of a unit supported to hold is not specified, the season is the same season as the supporting unit.
- If the season of the destination of a move order or the season of the destination of a supported move order is not specified, the season is the season of the moving unit.
- For example:
```
Germany 2:0
A Munich supports A Munich 1:1 - Tyrolia
```
  The order here is for Army Munich in 2:0. The move being supported is for Army Munich in 1:1 to move to Tyrolia in 1:1.

3. TEST CASES

3.A. TIMELINE FORKING

3.A.1. TEST CASE, MOVE INTO OWN PAST FORKS TIMELINE

A unit that moves into its own immediate past causes the timeline to fork.

    Germany 0:0
    A Munich hold

    Germany 1:0
    A Munich - Tyrolia 0:0

A Munich 1:0 moves to Tyrolia 0:0. The main timeline advances to 2:0 with an empty board. A forked timeline advances to 1:1 with armies in Munich and Tyrolia.

3.A.2. TEST CASE, SUPPORT TO REPELLED PAST MOVE FORKS TIMELINE

A unit that supports a move that previously failed in the past, such that it now succeeds, causes the timeline to fork.

    Austria 0:0
    A Tyrolia hold

    Germany 0:0
    A Munich - Tyrolia

    Austria 1:0
    A Tyrolia hold

    Germany 1:0
    A Munich supports A Munich 0:0 - Tyrolia 0:0

With the support from A Munich 1:0, A Munich 0:0 dislodges A Tyrolia 0:0. A forked timeline advances to 1:1 where A Tyrolia 0:0 has been dislodged. The main timeline advances to 2:0 where A Munich and A Tyrolia are in their initial positions.

3.A.3. TEST CASE, FAILED MOVE DOES NOT FORK TIMELINE

A unit that attempts to move into the past, but is repelled, does not cause the timeline to fork.

    Austria 0:0
    A Tyrolia hold

    Germany 0:0
    A Munich hold

    Austria 1:0
    A Tyrolia hold

    Germany 1:0
    A Munich - Tyrolia 0:0

The move by A Munich 1:0 fails. The main timeline advances to 2:0 with both armies in their initial positions. No alternate timeline is created.

3.A.4. TEST CASE, SUPERFLUOUS SUPPORT DOES NOT FORK TIMELINE

A unit that supports a move that succeeded in the past and still succeeds after the additional future support does not cause the timeline to fork.

    Germany 0:0
    A Munich - Tyrolia
    A Bohemia hold

    Germany 1:0
    A Tyrolia hold
    A Bohemia supports A Munich 0:0 - Tyrolia

Both units in 1:0 continue to 2:0. No alternate timeline is created.

3.A.5. TEST CASE, CROSS-TIMELINE SUPPORT DOES NOT FORK HEAD

In this test case, a unit elsewhere on the map moves into the past to cause a timeline fork. Once there are two parallel timelines, a support from one to the head of the other should not cause any forking, since timeline forks only occur when the past changes, not the present.

    Austria
    A Tyrolia 2:0 hold
    A Tyrolia 1:1 hold

    Germany
    A Munich 2:0 - Tyrolia
    A Munich 1:1 supports A Munich 2:0 - Tyrolia

A Munich 2:0 dislodges A Tyrolia 2:0. No alternate timeline is created.

3.A.6. TEST CASE, CUTTING CROSS-TIMELINE SUPPORT DOES NOT FORK

Following 3.A.5, a cross-timeline support that previously succeeded is cut.

    Germany
    A Munich 2:0 - Tyrolia
    A Munich 1:1 supports A Munich 2:0 - Tyrolia

    Austria
    A Tyrolia 2:0 holds
    A Tyrolia 1:1 holds

    Germany
    A Tyrolia 3:0 holds
    A Munich 2:1 holds

    Austria
    A Tyrolia 2:1 - Munich 1:1

Cutting the support does not change the past or cause a timeline fork.