奇数 Odd

标准数独基础上，涂色格填入奇数。

Classic rules applied, additionally, colored cells contain only odd numbers. 

◆涂色格内的奇数 Odd in colored cells

涂色格内可能有显性唯一，因为只能是奇数。

We may find Naked Singles in colored cells for they're only odd.

◆偶数与白格 Even and white cells

偶数不能在白格，所以我们可能可以找到关于偶数的隐性唯一。

Even cannot be in white cells, so we can find Hidden Singles in white cells about even numbers.

练习 Practice

① 四阶奇数可以没有已知数吗？

Can Odd 4x4 have no given numbers?

② 奇数和偶数，哪一种属性在奇数数独里被限制了？

Which parity is limitted in Odd, odd or even?

答案 Answer

① No ② 偶数 Even