发明授权
US4540175A Game of chance 失效
机会游戏

Game of chance
摘要:
A game of chance wherein there are several rows of spaces, say three, arranged in columns and containing symbols placed at random. All of the spaces are masked to render the symbols invisible. A symbol for the various columns is called out periodically and a player attempts to guess that space in which the symbol called out is located. A successful attempt is called a match. There is an array of further spaces, one for each row and, as the last column is uncovered there is called out a desired relative performance of matches, e.g. "most" or "least," and the player seeks to select that row in which the desired relative performance occurs, based on symbols already uncovered.
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