BACKGAMMON VS LOST CITIES
BACKGAMMON
Backgammon is one of the oldest known board games. Its history can be traced back nearly 5,000 years to archaeological discoveries in Mesopotamia. It is a two-player game where each player has fifteen pieces (checkers or men) that move between twenty-four triangles (points) according to the roll of two dice. The objective of the game is to be first to bear off, i.e. move all fifteen checkers off the board. Backgammon is a member of the tables family, one of the oldest classes of board games. Backgammon involves a combination of strategy and luck (from rolling dice). While the dice may determine the outcome of a single game, the better player will accumulate the better record over a series of many games. With each roll of the dice, players must choose from numerous options for moving their checkers and anticipate possible counter-moves by the opponent. The optional use of a doubling cube allows players to raise the stakes during the game. Like chess, backgammon has been studied with great interest by computer scientists. Owing to this research, backgammon software such as TD-Gammon has been developed that is capable of beating world-class human players.
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LOST CITIES
Lost Cities is a 60-card card game, designed in 1999 by game designer Reiner Knizia and published by several publishers. The objective of the game is to mount profitable expeditions to one or more of the five lost cities (the Himalayas, the Brazilian Rain Forest, the Desert Sands, the Ancient Volcanos and Neptune's Realm). The game was originally intended as a 2-player game, but rule variants have been contributed by fans to allow 1 or 2 further players, causing Reiner Knizia himself to later provide semi-official 4-player rules. Lost Cities is a fast-moving game, with players playing or discarding, and then replacing, a single card each turn. Cards represent progress on one of the five color-coded expeditions. Players must decide, during the course of the game, how many of these expeditions to actually embark upon. Card-play rules are quite straightforward, but because players can only move forward on an expedition (by playing cards which are higher-numbered than those already played), making the right choice in a given game situation can be quite difficult. An expedition that has been started will earn points according to how much progress has been made when the game ends, and after three rounds, the player with the highest total score wins the game. Each expedition that is started but not thoroughly charted incurs a negative point penalty (investment costs). Interaction between players is indirect, in that one cannot directly impact another player's expeditions. However, since players can draw from the common discard piles, they are free to make use of opposing discards. Additionally, since the available cards for a given expedition are finite, progress made by an opponent in a given color can lead to difficulty making progress in that same color. The game's board, while designed to supplement the theme, is optional and consists only of simple marked areas where players place discards. If Lost Cities had four expeditions instead of five, it could be played with a standard deck of playing cards. When doing so, the face cards would represent investment cards, with numbered cards two through ten serving as the expedition progress cards.