The goal of this game is to reach all of the Hearts without stepping upon any bones.  You get one point for each Heart that you reach, and once you have gotten all eight Hearts on the board, a new board is set up, and play continues.   When the last Heart on a board is reached, you will receive a BONUS of an additional eight Hearts if all non- Bone (safe) squares have been explored or if all Bones have been correctly marked.  A square is considered 'explored' if it shows a number.    Each time you move to a new square a number is displayed in that square. The number represents how many of the eight adjacent squares contain Bones. The squares at the sides of the board have less than eight adjacent squares. Your starting position is always in the upper left corner of the board, and is indicated by the square cursor.     As you move about the board, if you step on a square that has no adjacent Bones, the game automatically looks out from that point revealing all adjoining '0' squares and neighbors.      You can specify how many bones you wish to have on the starting board by pressing F2 to increase and Shift-F2 to decrease the number. You can modify the keys used to control movement and Bone marking by pressing F3, then pressing the desired keys in response to the prompts. The default keys are 1 through 9 with the exception of 5. ENTER is the default MARK key.     You can MARK and un-MARK squares that you suspect of having BONES by pressing the MARK key followed by a direction key.      Once you have MARKed a square you will not be able to move onto that square accidentally.  If you decide that it doesn't really contain Bones it can be un-MARKed in the same way that it was MARKed, and then you can move onto it.   When you complete a board, the number of Bones is increased by one on the next board.  The game ends when you step on Bones. The starting number of bones, your HIGH scores, and your choice of movement and MARK keys are stored in the file C:\_DAT\HEARTS.CNF. A separate HIGH score is kept for each starting BONE count
