13

From BoardGameGeek:

13 cards can be arranged in over 6 Billion possible combinations ... 6,227,020,800 to be exact. A version of this game is said to have been found at a UFO site in Texas back in the 1980s. With its mysterious origin, we are still unclear as to the strange effects of achieving the "13" result. Some say it sharpens intuition, improves focus, and intelligence. But who knows.... "13" is primarily a solo card game, but more can play as well, using just 13 cards. It can be played by yourself just trying to get the highest score, break the code per say, or you could play it with two or more people as a betting game to see who can come up with the highest score over a three round match. RULES: The cards are mixed and dealt out randomly and face up in this configuration: X X X X X X X X X X X X X Cards will have either an arrow/arrows showing in which direction they may affect another card. These arrows only affect cards immediately next to them, whether horizontally, vertically, or diagonally. The arrow on the activated card must be pointing to a card immediately adjacent to it, otherwise there is no effect. Some cards will have simple written instructions. When a card refers to “first position” or “last position” they are referring to the original dealt out top left position “1” or the original dealt out bottom right position “13” exactly. If the cards in those specific positions have been removed (the space is empty) then nothing happens. So once the cards are shuffled and dealt out, you will “activate” one card and remove both the card activated and the card it affects from the tableau. The objective is to remain with one card in the end, otherwise it's an automatic loss. Remaining with one card in the end is usually possible, so avoiding mistakes is crucial. You're shooting to remain with the highest value card in the end, preferably the “13”. www.DualBrainGames.com www.thegamecrafter.com/games/131