Cipher

I just find the difference and find the key word [spoiler],but I'm not familiar with this [spoiler],so i just wound ,if he is [spoiler],thanks.

There can be many ways to fill the puzzle,how can I find the key word? There's no keywords on this one... you already have all you need to finish the puzzle. so you mean that I don't have to fill all the blanks in the chessboard？if then how can I find the similar part? Does the chessman just mean a...

There can be many ways to fill the puzzle,how can I find the key word?