Baker's Dozen Solitaire is a type of patience game played with one deck of standard 52-cards set which has no stock pile. All cards are dealt face-up at the beginning to 13 columns with aim to build four foundation piles up from Ace to King. Only the top card of a column is available for play. The difference between the variants are as following Baker's Dozen - Cards in a tableau pile are build-down by rank in any suit. Empty tableau pile can not be filled with any card. Spanish Patience - Cards in a tableau pile are build-down by rank in any suit. Empty tableau pile can be filled with any card. Castles in Spain - Tableau piles are build-down by alternate colors. Empty tableau pile can be filled with any card. Portuguese Solitaire - Cards in a tableau pile are build-down by rank in any suit. Empty tableau pile can only be filled with a King. Features - Save game state to play later - Unlimited undo - Game play statistics