it's common knowledge that if you want to learn something, you should start young. somehow, young minds & limbs acquire skills with ease. hence, they start piano & language classes even at pre-school.
i learned to play chess when i was 6. my kids started piano lessons at 5. but when the boy asked me to teach him solve sudoku puzzles, i told him i'd do it when he's older. however, he was adamant that younger was better. so, i showed him the puzzle in today's Star papers & taught him the rules.
surprisingly, even to me, he seemed to have caught on rather quickly. with some pointers from me, he managed to go this far by bed time.....
not bad for a 1st timer, huh?
Train a child in the way he should go, and when he is old he will not turn from it. prov 22:6