#define puzzle_width 18
#define puzzle_height 18
static char puzzle_bits[] = {
  0x00, 0xFC, 0x00, 0x00, 0xFC, 0x00, 0x00, 0xCC, 0x00, 0x00, 0xCC, 0x00, 
  0xF0, 0xCF, 0x03, 0xF0, 0xCF, 0x03, 0x30, 0x00, 0x03, 0x30, 0x00, 0x03, 
  0x3F, 0x00, 0x03, 0x3F, 0x00, 0x03, 0x03, 0x00, 0x03, 0x03, 0x00, 0x03, 
  0x3F, 0x3F, 0x03, 0x3F, 0x3F, 0x03, 0x30, 0x33, 0x03, 0x30, 0x33, 0x03, 
  0xF0, 0xF3, 0x03, 0xF0, 0xF3, 0x03, };