BIT_FROM_LETTER
PRINTF("%c", (BIT_FROM_LETTER(words[current][i]) & tried_letters)?(words[current][i]):HIDDEN_LETTER);
if (BIT_FROM_LETTER(try) & tried_letters) {
tried_letters |= BIT_FROM_LETTER(try);
if (!(BIT_FROM_LETTER(*str) & tried_letters))