Use one of your dice to capture one of your opponent's dice. The number showing on your die must be greater than or equal to the number showing on the die you capture. Take the captured die out of play, then re-roll the capturing die.
Use several of your dice to capture one of your opponent's dice. In this attack, your dice must add up exactly to the value showing on the die you capture. Remove the captured die from play, and re-roll all the capturing dice.
Focus Dice: If a player has Focus Dice, he can change his starting roll as follows:
If you do not have the initiative, i.e., you are not going first, you may reduce the values showing on any number of your Focus Dice. You may change as many dice as you wish, but you may only do this if it results in your gaining the initiative.
If your opponent has Focus Dice, he may now do the same, and each player may respond by turning down one or more Focus Dice until no further moves are legal, or until one player allows the other to take the first turn.
Important restriction: If you go first, you may not use any Focus Dice you have reduced as part of your first attack. (The second player has no such restriction.)
The Legend of the Five Rings expansion also contained the following multiplayer rules:
Players sit in a circle. The player with the lowest roll goes first. Players with Focus Dice have the chance to use them, starting with the player who is closest to going first, and working up. When a player is attacked, that player takes the next turn. If a player passes, the turn moves to the left. The game continues until every player passes.