$transformed = $this->transformGuess($solution);
if ($this->guessing_type == 'gtbk') {
$int_solution = intval($transformed);
- return is_numeric($transformed) && $int_solution > 0 && $int_solution < 23;
+ return is_numeric($transformed) && $int_solution >= 0 && $int_solution <= 23;
}
return false;
}