六角棋

The game is played on an 11x11 diamond-shaped board of hexagons (sizes vary from 7x7 to 19x19). Each player is assigned two opposite edges of the board. Black connects top-to-bottom, Red (or White) connects left-to-right.

Win by creating a continuous chain of your pieces connecting your two opposite sides. It's mathematically proven that the game cannot end in a draw - one player must win.

Players alternate placing one piece of their color on any empty cell. Once placed, pieces never move or get captured. Try to build a connected path from your edge to your opposite edge.

The center is powerful - it can potentially contribute to paths in any direction. Build bridge connections (two pieces separated by two cells) - they create virtually connected chains. Look for forcing moves that threaten two connections simultaneously.

Hex was invented independently by mathematicians Piet Hein (1942) and John Nash (1948). Nash proved that the first player has a winning strategy, though finding it is computationally hard.