REVERSI VS SKIP-BO

Reversi is a strategy board game for two players, played on an 8×8 uncheckered board. It was invented in 1883. Othello, a variant with a change to the board's initial setup, was patented in 1971. There are sixty-four identical game pieces called disks (often spelled "discs"), which are light on one side and dark on the other. Players take turns placing disks on the board with their assigned color facing up. During a play, any disks of the opponent's color that are in a straight line and bounded by the disk just placed and another disk of the current player's color are turned over to the current player's color. The objective of the game is to have the majority of disks turned to display one's color when the last playable empty square is filled. Goro Hasegawa claims that the origin of Reversi/Othello dates back 5,000 years. However, there is solid evidence that a game similar to Reversi/Othello existed since the 19th century. Each of the disks' two sides corresponds to one player; they are referred to here as light and dark after the sides of Othello pieces, but any counters with distinctive faces are suitable. The game may for example be played with a chessboard and Scrabble pieces, with one player letters and the other backs. The historical version of Reversi starts with an empty board, and the first two moves made by each player are in the four central squares of the board. The players place their disks alternately with their colors facing up and no captures are made. A player may choose to not play both pieces on the same diagonal, different from the standard Othello opening. It is also possible to play variants of Reversi and Othello where the second player's second move may or must flip one of the opposite-colored disks (as variants closest to the normal games). For the specific game of Othello, the game begins with four disks placed in a square in the middle of the grid, two facing white-side-up, two dark-side-up, so that the same-colored disks are on a diagonal. Convention has this such that the dark-side-up disks are to the north-east and south-west (from both players' perspectives), though this is only marginally consequential: where sequential openings' memorization is preferred, such players benefit from this. The dark player moves first.

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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.

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