There is a negligible difference in meaning between these two words.

这两个词在意义差别是极小的。

There is an off chance of his winning the chess game.

他赢棋的希望极小。

For fifteen francs a month she found a tiny six-floor room.

她找到了一个6层楼极小的房,每月15法郎。

I live in a tiny cottage.

我住在一极小的屋里。

Another problem of minimality also remains unsolved—to wit, what is the smallest number of digits a puzzle maker can place in a starting grid and still guarantee a unique solution?

另外还有一类「极小」的问题也还没有解决：在保证有唯一解的条件下，一个初盘至少需要几个数字？