81 tiles are fitted in the board. The letter H is hidden below
these tiles. Please find the letter H hidden inside the board.
You turn the tile by tap, If the turned tile is part of the
letter H, it will be HIT, otherwise it will be NotHit.
If there are four NotHits, you lose one diamond-shaped flag.
When the number of diamond-shaped flags has become zero,
the game is over. Three diamond-shaped flags are given
at the beginning. When the score exceeds 500 points,
one diamond-shaped flag is added. (One time only)
You can proceed to the next stage when all the hidden
characters(letter H) appear on that stage(level).