Gomoku
Five in a row against a pruning AI on a wooden board.
More Board & Card games

Hartwig 3D Chess
A gorgeous CSS 3D chess set you can actually play.

Klondike Solitaire
Vegas rules, drag-and-drop, zero deck shuffling.

Checkers
Kings, jumps and forced captures on the classic 8ร8 board.

Spider Solitaire
Stack every suit from King to Ace in the two-deck classic.