Comparing strings that user input

Question

I really have problem with strings. If function wont work and it is printing from else . Why?

    char trenutni;
    //more code
    printf("Unesite polje koje zelite da otvorite!\n");
    scanf("%c",&trenutni);

if(trenutni=='a1' && a1otvoreno!=0)
{
strncpy(a1, "koordinate", sizeof(a1));
printf("A1 je %s", a1);
printf("Da li zelite da pogadjate? Unesite slovo kolone, za konacno R ili ako ne zelite upisite 0!\n");
scanf("%c",biranje);
brojodigranih++;
a1otvoreno--;
    if(biranje=='A')
    {
    printf("Unesite resenje za kolonu A:\n");
//more code
else
printf("Vec ste otvorili to polje!\n");

Answer 1

This seems suspicious:

trenutni=='a1'

Typically you should put a single character inside single quotes '' .

NB: According to the standard : "The value of an integer character constant containing more than one character (eg, 'ab' ), [...] is implementation-defined."