Brian Boru: High King of Ireland

The trick is won by the player who played the highest-value card in the colour matching the active town; royal (white) cards are wild and count as the town colour (pp. 5, 7).

Actions are taken in ascending card value order (lowest to highest); if a player won the trick they perform the card's primary action, otherwise they choose one of the card's secondary actions (p. 5).

Play tricks until each player has only one card left in hand; then discard those remaining cards and proceed to the upkeep phase (p. 5).

The player whose disc is highest on the marriage track takes the marriage card and immediately gains its listed benefits, then their disc returns to the bottom of the track; the Princess of Denmark gives a choice of military support, establish trade, or be spurned (gain 4 points), each with specific effects on how Viking-controlled towns count (p. 8).

If Viking raiders are present, the player(s) with the fewest Viking tokens lose town(s) to the Vikings and the player with the most Viking tokens places the Viking control token; afterward the player with the most Viking tokens gains a renown and scores points equal to their renowns (returning their tokens), and then the current leader(s) each gain one point and return a token, with ties modifying or cancelling these rewards (p. 9).

Flip face-down claim tokens if the number of towns in that region meets the token threshold (towns with monasteries count as two); face-up tokens go to the player with the most towns in the region (ties leave the token), and Viking-controlled towns count for claiming/flipping depending on the Princess of Denmark choice (pp. 9, 10, 12).