Pentago

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Pentago Winning Position for White

Pentago is a two-player abstract strategy game invented by Tomas Flodén. The Swedish company Mindtwister has the rights of developing and commercializing the product.

The game is played on a 6×6 board divided into four 3×3 sub-boards (or quadrants). Taking turns, the two players place a marble of their color (either black or white) onto an unoccupied space on the board, and then rotate one of the sub-boards by 90 degrees either clockwise or anti-clockwise. A player wins by getting five of their marbles in a vertical, horizontal or diagonal row (either before or after the sub-board rotation in their move). If all 36 spaces on the board are occupied without a row of five being formed then the game is a draw.

There is also a 3-4 player version called Pentago XL. The board is made of 9 3×3 boards, and there are 4 colours (red, yellow, green and blue) instead of the basic 2.

The 6×6 version of Pentago has been strongly solved with the help of a Cray supercomputer at NERSC. With symmetries removed, there are 3,009,081,623,421,558 possible positions. If both sides play perfectly, the first player to move will always win the game. [1]

Awards[edit]

So far Pentago has won 8 major awards, lastly Game of the Year 2007, by Creative Child Magazine.

References[edit]

  1. ^ Geoffrey Irving: "Pentago is a first player win", http://perfect-pentago.net/details.html

External links[edit]

  • Play pentago online: [1]
  • Amateur pentago online: [2]
  • Perfect play explorer online: [3]