Gomoku is played on a 15×15 board. Black and white take turns placing one stone, and the first to get five stones in a row — horizontally, vertically, or diagonally — wins.
History of Gomoku
Gomoku has long been played in Japan as a simple game using Go stones and a Go board, enjoyed by children and adults alike.
Rules
Black plays first, then players alternate placing one stone.
Get five stones in a row to win.
If the board fills up with no five in a row, the game is a draw.
This app has no special forbidden moves.
Tips for beginners
Start near the centre.
Make fours that your opponent must block.
Create double threats (two ways to win at once).
Always block your opponent's four.
Watch what your opponent is aiming for.
Features of Hanako's app
Three difficulty levels, black/white choice, hints, undo, and a win-loss count.