Thank you for your reply.
I did the changes (except: assign kinisi[2] to it, and compare it to characters '1' through '8'-I don't know how)
The program doesn't find error now, but still it doesn't show the message "white move ok" propably the while condition is not right.
Yes I want an error message when user types more than 3 characters and when he doesn't type the permitted characters. Should I use strlen()?
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A move in chess (http://en.wikipedia.or g/wiki/Algebraic_notat ion_(chess)) can be written entering three characters:
like: Ka1
The first letter can be K, Q, R, N, B, P
The second letter can be a, b, c, d, e, f, g, h,
The third letter can be 1, 2, 3, 4,, 5, 6, 7, 8
User can input 3 characters using the above rules
If something is wrong with input characters the program must show error message (for example...