in str/apps/explorer/PuzzleCodeConverter.cpp [117:127]
int PuzzleCodeConverter::blueToBlackPosition(int blueNum)
{
int blackNum=blueNum;
if(blueNum > 1)blackNum++;
if(blueNum > 2)blackNum++;
if(blueNum > 6)blackNum++;
if(blueNum > 7)blackNum++;
return blackNum;
}