波多黎各:两人游戏规则
官方规则
游戏准备:
(注:两人游戏开始前需要扣除一定数量的牌卡,这些扣除的牌卡不参与游戏
每位玩家        1 游戏面板,3 杜柏仑(Doubloon)金币,1 靛蓝 (归总督拥有)、 1枚玉米(归第二名玩家拥有);
种植园卡片     从每种 种植园 卡片中各扣除3张(扣除的牌不参与游戏,下同),将剩余的牌洗好,正面放置3张种植园卡片(正面放置种植园的数量永远比参与游戏的人数多1);
采石场        扣除3 采石场 卡片,游戏只使用余下的5张卡片进行;
建筑物        从每种(彩)生产建筑物 中各取出2张参与游戏,扣除其他彩牌卡;同时,从每种 紫建筑物 各取出1张参与游戏,扣除其他紫牌卡;
胜利点数         65点;
拓荒者        40 (供给状态,即使用中) + 2名在拓荒船上;
货物            从每类货物卡中各扣除2张;
运输船    3tiles    仅使用有4个和6个仓位的货船卡,扣除其余货船卡;
商会            同原规则不变;
角卡        扣除1张淘金者角卡;
游戏过程:   
(注:2人变体规则实际只更改了角卡的抽取顺序。抽取角卡后的行动阶段同原规则,此处不再赘述)
正式游戏自持 总督卡 的玩家(玩家甲)抽取第1张角牌开始,随后轮流抽取,直到两名玩家每人都各抽取了3张角卡;
随后,在余下的每张角卡上放置1枚杜柏(Doubloon)仑金币;
此时现在持总督卡的玩家将总督卡交给另一名玩家(交还给玩家甲),由游戏正式开始时第一位持总督卡的玩家(玩家甲)继续抽取余下的角卡;
随后的规则没有改变。

备注:翻译参考
Puerto Rico: 2-player Variant
Official Alea/Ravensburger Rules
This version is translated by Frank Hamrick from the Aleaspiele.de website
Copyright: © 2001 Ravensburger Spieleverlag
  The author and publishing house had two compelling conditions when we developed the following variant for 2 players: 1) we wanted to make no new material (e.g. new violet buildings), and 2) we wanted to retain the original rules so far as possible so that the transp
osition of the multi-player game to the 2-player game would not be too novel. We would love to hear your feedback on this variant. Which buildings are especially strong, which weak? What would you change- why? What would you do differently? Send your questions to info@aleaspiele.de.
Variations from the multi-player game follow.
Game Preparation:
Per Player        1 player board, 3 Doubloons, 1 Indigo (for governor); 1 corn (for 2nd player)
Remaining        Remove 3 of each type of plantation from the game. Uncover 3 plantations Plantations        (one more than the number of players)
Quarries        Remove 3 Quarries from the game (use 5 quarry tiles)
Buildings        Use 2 of each Production building, and 1 of each Violet building
Victory Points      65 total Victory Points
Colonists        40 (in supply) + 2 on the colonist ship (minimum = player number)
Goods        Remove 2 of each type of good from the game
Cargo Ships        Use the 4 and 6 capacity cargo ships
Trading House    No change
Role Cards        Remove 1 prospector from the game
Game Sequence:   
The Governor begins and selects a role. Subsequently the players alternate selecting roles until both players have selected 3 roles. Place one Doubloon on the remaining role card. The Governor then changes to the second player and the above sequences is repeated. All further rules are the same as in the Multiplayer game.