Chess example notation

[homofortis]

Hi, I really enjoyed your chess on my little OLED display :)) Great work!!!
You just may want to rearrange the code In chessengine.c for cu_add_pos() to make it display moves correctly:
*s = pos;
*s &= 15;
*s += 'a';
s++;
*s = pos;
*s >>= 4;
*s += '1';