Mahjongg is a Chinese board game similar to solitaire. The goal of the game is to remove all of the tiles by finding matching pairs -- but there is a trick: only those tiles ''free'' on their left or right side can be matched/removed. I.e. any tile with another on top of it or with tiles on both sides of it is not ''free''.

There are 42 different tile types. There are four of each of the first 34 types. The other eight types are special -- four ''flower'' tiles and four ''season'' tiles (shown below). Any of the four flower tiles matches another flower tile; any of the four season tiles matches another season tile (a flower does not match a season).

Gameplay: Click a tile to select it; click it again to deselect. Click a second tile, and if both are free and match, they are removed. The ''new game'' button begins a new (different, random) game. The ''restart'' button starts the current game over. The ''undo'' button undoes the last move (click more than once to go back more than one move). The ''available moves'' button reveals the number of possible moves remaining. The ''hint'' button highlights one of the possible moves. The ''sound'' checkbox toggles sound on/off. The ''gray out locked tiles'' checkbox toggles on/off a setting to use a darker gray color for tiles that are not free.

Compatibility issues:
This game requires a java^TM enabled browser compatible with Java^TM 1.1.5. This includes the newest versions of Netscape and Internet Explorer. Earlier versions of these browsers, AOL's browser, and others are not guaranteed to function.