KALAH VS QWIRKLE

Kalah, also called Kalaha or Mancala, is a game in the mancala family invented in the United States by William Julius Champion, Jr. in 1940. This game is sometimes also called "Kalahari", possibly by false etymology from the Kalahari desert in Namibia. As the most popular and commercially available variant of mancala in the West, Kalah is also sometimes referred to as Warri or Awari, although those names more properly refer to the game Oware. For most of its variations, Kalah is a solved game with a first-player win if both players play perfect games. The Pie rule can be used to balance the first-player's advantage. Mark Rawlings has written a computer program to extensively analyze both the "standard" version of Kalah and the "empty capture" version, which is the primary variant. The analysis was made possible by the creation of the largest endgame databases ever made for Kalah. They include the perfect play result of all 38,902,940,896 positions with 34 or fewer seeds. In 2015, for the first time ever, each of the initial moves for the standard version of Kalah(6,4) and Kalah(6,5) have been quantified: Kalah(6,4) is a proven win by 8 for the first player and Kalah(6,5) is a proven win by 10 for the first player. In addition, Kalah(6,6) with the standard rules has been proven to be at least a win by 4. Further analysis of Kalah(6,6) with the standard rules is ongoing. For the "empty capture" version, Geoffrey Irving and Jeroen Donkers (2000) proved that Kalah(6,4) is a win by 10 for the first player with perfect play, and Kalah(6,5) is a win by 12 for the first player with perfect play. Anders Carstensen (2011) proved that Kalah(6,6) was a win for the first player. Mark Rawlings (2015) has extended these "empty capture" results by fully quantifying the initial moves for Kalah(6,4), Kalah(6,5), and Kalah(6,6). With searches totaling 106 days and over 55 trillion nodes, he has proven that Kalah(6,6) is a win by 2 for the first player with perfect play. This was a surprising result, given that the "4-seed" and "5-seed" variations are wins by 10 and 12, respectively. Kalah(6,6) is extremely deep and complex when compared to the 4-seed and 5-seed variations, which can now be solved in a fraction of a second and less than a minute, respectively.

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Qwirkle is a tile-based game for two to four players, designed by Susan McKinley Ross and published by MindWare. Qwirkle shares some characteristics with the games Rummikub and Scrabble. It is distributed in Canada by game and puzzle company Outset Media. Qwirkle is considered by MindWare to be its most awarded game of all time. In 2011, Qwirkle won the Spiel des Jahres, widely considered the most prestigious award in the board and card game industry. A sequel, Qwirkle Cubes, was released by Mindware in 2009. Qwirkle comes with 108 wooden tiles, and each tile is painted with one of six shapes (clover, four-point star, eight-point star, square, circle and diamond) in one of six colors (red, orange, yellow, green, blue and purple). The box also contains a bag to store the tiles and a rule book. The game begins with all the tiles being placed in the bag and mixed thoroughly. Each player then randomly draws six tiles. During their turn, a player may either: place one or several tiles on the table; or instead of playing tiles, exchange one or more tiles in their hand for other random tiles. In general, any tiles that are placed in a row must share one attribute (either color or shape), and they must be played in one line, although they do not need to touch other tiles being placed in that turn. A player must always end a turn with six tiles, so, if they place tiles during a turn, they draw random tiles to build their hand back up to six. Play continues until one person uses all of their available tiles and there are no more tiles to be drawn.

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