【Question 8】
There are 100 chess pieces, two people take turns to take the pieces, each time allowing to take 1, 2, or 5 pieces, the one who takes the last piece wins. If you take first, then the first time you should take $\qquad$ pieces to ensure victory.
【Analysis and Solution】
The first player takes 1, then each time combines with the latter to take 3 or 6 (multiples of 3); then the first player has a winning strategy.