TacTix is a two-player strategy game invented by Piet Hein. It is essentially a two-dimensional version of Nim. Players alternate taking pieces away from a square (or rectangular) grid, as many contiguous pieces as desired from a single row or column. The player who takes the last piece loses (misère play convention).

The hexagonal variation of the game, played on a six by six by six board, is called TacTex.

On the 4 × 4 grid originally proposed by Hein, the second player will always win with correct play (HAKMEM item #74).

If the game is instead played with the normal play convention (player who takes the last piece wins), the second player can always win by symmetrically mirroring the first player's moves. (Or on an odd × odd size grid, the first player can win by choosing the center piece and subsequently mirroring.)

The game is often used as a programming exercise, and many versions are available on the web as Java applets.

Other articles related to "tactix":

Julie Seymour - ANZ Championship
... in the new league, and were renamed the Canterbury Tactix ... During Seymour's two years in the ANZ Championship, the Tactix finished in 8th and 6th place, respectively ... her retirement, Seymour accepted a position as assistant coach for the Tactix from 2010, under head coach Helen Mahon-Stroud ...
England National Netball Team - Players - 2012 Team
... GS Hertfordshire Mavericks Jade Clarke WA, C, WD Canterbury Tactix Pamela Cookey GA, GS Surrey Storm Rachel Dunn GS Surrey Storm Stacey Francis GK, GD, WD Canterbury ...
Canterbury Tactix
... The Canterbury Tactix are a New Zealand netball team based in Christchurch, New Zealand that currently compete in the trans-Tasman ANZ Championship ... franchise of the new trans-Tasman ANZ Championship and changed their name to the "Tactix" ... The Tactix have had mixed results during their competitive history ...