The window of Romi is divided into two principal elements: the board, with 8 rows of 23 cells where you put the cards that you play, and the rack where the player's cards are stored. The groups of cards placed on the board must be separated by one or more empty cells. The player's cards can be placed anywhere on the rack.
To move a card, the player clicks on a card, the card is selected (darkened) and the player selects the destination by clicking where he wants to move the card. Romi also support Drag and Drop of selected cards.
You can form groups of cards on the board by double-clicking sequentially on each card from your rack or from the board.
Romi does not allow you to place a card before or after a card on the board, if the group formed with this card is not valid.
The player can select a group of cards on the board by clicking with the Option key on the first card he wants to select, all the following cards are selected. He can also use the same Option-click for selecting a group of cards on his rack. In this case, only the following consecutive cards who can make a valid group are selected.
The player can select a group of cards by clicking with the Option-Shift keys on the last card he wants to select, all the preceding cards including the clicked card are selected. He can also use the same Option-Shift-click for selecting a group of cards on his rack. In this case, only the preceding cards who can make a valid group are selected.
You can cancel a selection of cards by clicking on the same card you have clicked.
If the player can't or doesn't want to play a card, he must draw a new card by clicking on the "hand picking a card" icon. The card is selected randomly in the remaining cards.
When the player has finished his turn, he clicks on the sand-glass icon. Romi checks that the game is valid and it becomes Romi's turn. When Romi plays, the sand-glass icon is replaced by a computer icon.