Create a rule called “The Chart”

Dynastic data is recorded in the GNDT and in an Excel spreadsheet. The spreadsheet consists of a 10x10 grid of squares numbered 1-100, with facings North (N) on the top, East (E) on the right, South (S) on the bottom and West (W) on the left of the grid. This grid is called the Chart. 

The Chart is further divided into 4 groups of 25 squares called Quadrants. The 25 squares in the top-left corner of the Chart are called the North-West (NW) Quadrant; the 25 squares in the top-right corner are called the North-East (NE) Quadrant; the 25 squares in the bottom-right corner are called the South-East (SE) Quadrant; the 25 squares in the bottom-left corner are called the South-West (SW) Quadrant.

Recorded on the squares of the Chart are Vessels (and their Facings), Shots and Objects.
Vessels are recorded with an identity code in the format “[Initial of Vessel Type][Unique number](Facing)”. For example, B1(N) for a Battleship facing North.

The GNDT will display a list of Captains, the Vessels they control, and the Armour Values and Facings of those Vessels.

Create a rule called “The Watch”

The dynasty consists of 48-hour periods; each 48-hour period is called a Watch.
Once per Watch, a Captain may send the Admiral a private message listing the square their Vessel/s moves to, their Vessel/s’s facing, and the square/s their Vessel/s shoot at.

After a Watch has ended, the Admiral will update the Chart to reflect the new positions of all Vessels, Shots and Objects. In addition, if any Vessels have suffered Damage or have been Sunk, the Admiral will update the GNDT to reflect these changes.
These updates are called a Chart Update.

When the Chart is Updated, all Shots marked on the Chart at the time it was Updated are removed.
Once the Chart has been updated, a new Watch begins.

Each Chart update will be recorded in the dynastic rules section of the BlogNomic wiki page in a sub-section entitled Ship’s Log.