when to teach??


At two and a half years my daughter could set up the chess board completely without assistance or faults. Shes turning three in April.
The chess set is always out so currently we are "playing chess" but that mostly involves her moving the pieces in all kinds of Barney-like ways... And of course she always wins.
my daughter is only 16 months old but i've already introduced her to a chess set. she has no idea how to play, i just want her to become familiar with it. my wife is from mizoram and i'm from england so my daughter is already multi-lingual. I want to introduce her to brain-building games as opposed to television and cartoons but the question is this...
....how young can a kid learn to play chess??