Noughts and crosses (aka 'Tic-Tac-Toe') with randomized 'symbols' of five different types, played with Icehouse pieces.

Equipment:

* 5 stashes of Icehouse pieces (of any color, as long as they are different)
* Opaque bag
* chess board

Each player tries to get four in a row of at least three different colors. This symbolizes alchemists trying to grow enough of different types of chemicals in order to turn lead into gold.