Correct

起首

/ qǐ shǒu / 
Strokes

Example

As an Adverb

originally; initially; at first; in the beginning; at the outset

1
Qǐshǒu
起首
wǒ
我
bìng
并
bùhuì
不会
xiàqí
下棋
  
。

I didn't know how to play chess at first.