1. There are three piles of matches, two in the first pile, two in the second pile and three in the third pile. If whoever gets the last root or roots of the last pile wins, what is the winning strategy?

Whoever gets it first wins. Because the first person takes all the third piles at once, every time he takes the same number of roots from another pile, he is sure to win.

2. The matching items of16 are arranged as follows. Two people take turns to take matches from it. Each person can only take a few matches at a time, but only from the same line. Whoever gets the last one or several wins, first or later?

1

1 1 1

1 1 1 1 1

1 1 1 1 1 1 1

The person who takes it later will definitely win. No matter how the person who takes it first takes it, the person who takes it later takes a pile first and then a pile.

Then the remaining roots must be even. At this time, the latecomers and the forerunners can win from the same root.

You can list this yourself.

If in doubt, you can Baidu Hi,