Based upon the standard Risk board, this map adds control of the oceans to the battle.

Continents

Continents are worth the same as the standard board, with the addition of single territory continents (identified with stars), which are worth +1 all by themselves.

Harbors (marked with an anchor) are also worth +1 all by themselves. All ocean territories are worth +1 (+2 total for harbors) if you also control every adjacent ocean.

Most attacks between land and sea have a +4 to defense (both ways). If there is a harbor in the ocean territory, there is only a +1 to defense (both ways). Harbors are indicated by an anchor icon.

Islands

Please note that unlike the regular risk map you cannot directly attack islands from the main continent. You MUST go through the ocean to complete some continents. Usually you will want to use the harbor.

Starting Scenario

Player territories - 4 units

Star territories - 4 units

Anchor territories within a land continent - 3 units.

Anchor territories between land continents - 5 units.

Red Sea (i.e. O33) is a special case, and starts with 4 units.

Bering Sea (i.e. O1 & O5) is a special case and starts with 6 units across two harbors.

Math

+1 to defense requires about 1.25 attackers per defender

+4 to defense requires about 2.4 attackers per defender