Forty Thieves Solitaire HD by Magory is a challenging solitaire game that requires some skill and patience. The game is available for the Android platform and is completely free to download and play. The game offers two difficulty levels - easy and hard. On easy level, players can go through the stock three times, making it much easier to complete the game. On hard level, cards on the tableau that are not on top are hidden, making it even more challenging.

The game is more suited for tablets and large phones because there are a lot of cards on the screen. On small screen phones, players might have problems navigating the game, with 480x320 being the absolute minimum resolution. The rules of the game are simple - click on the left stack to get a new card, move all cards to the foundations from Ace to King, you can place a card on another card if it's higher and is the same suit or put it on an empty space, and you can move only one card at a time.

Forty Thieves Solitaire HD offers high resolution graphics, undo, saving state, clean cards, and zoom features. It is a great game for those who love solitaire and want to challenge themselves. Additionally, Magory has other solitaire games available for users to explore.