HEX VS SKIP-BO
HEX
Hex is a two player abstract strategy board game in which players attempt to connect opposite sides of a hexagonal board. Hex was invented by mathematician and poet Piet Hein in 1942 and independently by John Nash in 1948. It is traditionally played on an 11×11 rhombus board, although 13×13 and 19×19 boards are also popular. Each player is assigned a pair of opposite sides of the board which they must try to connect by taking turns placing a stone of their color onto any empty space. Once placed, the stones are unable to be moved or removed. A player wins when they successfully connect their sides together through a chain of adjacent stones. Draws are impossible in Hex due to the topology of the game board. The game has deep strategy, sharp tactics and a profound mathematical underpinning related to the Brouwer fixed-point theorem. The game was first marketed as a board game in Denmark under the name Con-tac-tix, and Parker Brothers marketed a version of it in 1952 called Hex; they are no longer in production. Hex can also be played with paper and pencil on hexagonally ruled graph paper. Hex-related research is current in the areas of topology, graph and matroid theory, combinatorics, game theory and artificial intelligence.
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SKIP-BO
Skip-Bo is a commercial version of the card game Spite and Malice, a derivative of Russian Bank (also known as Crapette or Tunj). In 1967, Minnie Hazel "Skip" Bowman (1915–2001) of Brownfield, Texas, began producing a boxed edition of the game under the name SKIP-BO. In 1980 the game was purchased by International Games, which was subsequently bought by Mattel in 1992. A mobile version of the game for iOS was released by Magmic in September, 2013. There is a new version called "SKIP-BO Mod" that comes in a white and blue case. Two to four people can play at a time as individuals, or, six or more players in teams (no more than three partnerships). The object of the game is to be the first player or team to play out their entire stock pile(s). The player with the middle age goes first. Each player is dealt 30 cards (recommended 10-15 for faster gameplay) for their pile with only the top card visible, and a hand of five cards, and the remaining cards are placed face down to create a common draw pile. The shared play area allows up to four build piles, which must be started using either a "1" card or a Skip-Bo, and each player also has up to four personal discard piles. Each turn the active player draws until they have five cards in hand, though there are cases of not drawing more cards to equal five cards, instead doing a draw of a certain number of cards. They must play either the next card in sequential order or a wild Skip-Bo card, using either cards in hand, the top card of their stock pile, or the top card of any of their four discard piles. If the player can play all five cards from their hand, they draw five more and continue playing. When no more plays are available, the player discards one card to either an empty discard pile or on top of an existing one and play passes to the next player. When a build pile reaches 12, it is removed from the board and that space becomes empty for another pile to be started; play continues until one player has played their final start card.