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  2. Subtraction game - Wikipedia

    en.wikipedia.org/wiki/Subtraction_game

    Subtraction games are generally impartial games, meaning that the set of moves available in a given position does not depend on the player whose turn it is to move.For such a game, the states can be divided up into -positions (positions in which the previous player, who just moved, is winning) and -positions (positions in which the next player to move is winning), and an optimal game playing ...

  3. Nim - Wikipedia

    en.wikipedia.org/wiki/Nim

    Interactive subtraction game: Players take turns removing 1, 2 or 3 objects from an initial pool of 21 objects. The player taking the last object wins. In another game which is commonly known as nim (but is better called the subtraction game ), an upper bound is imposed on the number of objects that can be removed in a turn.

  4. Subtract a square - Wikipedia

    en.wikipedia.org/wiki/Subtract_a_square

    A normal play game starting with 13 coins is a win for the first player provided they start with a subtraction of 1: player 1: 13 - 1*1 = 12 Player 2 now has three choices: subtract 1, 4 or 9. In each of these cases, player 1 can ensure that within a few moves the number 2 gets passed on to player 2:

  5. Subtraction - Wikipedia

    en.wikipedia.org/wiki/Subtraction

    Placard outside a shop in Bordeaux advertising subtraction of 20% from the price of the second perfume purchased. Subtraction (which is signified by the minus sign, –) is one of the four arithmetic operations along with addition, multiplication and division. Subtraction is an operation that represents removal of objects from a collection. [1]

  6. Surreal number - Wikipedia

    en.wikipedia.org/wiki/Surreal_number

    All games are constructed according to this rule: Construction rule If L and R are two sets of games then { L | R} is a game. Addition, negation, and comparison are all defined the same way for both surreal numbers and games. Every surreal number is a game, but not all games are surreal numbers, e.g. the game { 0 | 0} is not a surreal number ...

  7. These Valentine’s Day Treats Are Fun for Kids To Make and ...

    www.aol.com/valentine-day-treats-fun-kids...

    Discover cute and fun Valentine's Day recipes for kids! Heart-shaped treats and chocolate-strawberry concoctions will delight young hearts and make your celebration sweet.

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