/rookvsbishop

Primary LanguageScala

rookvsbishop

We are looking at a 'special' game of chess where each player only has one piece. Player with white pieces only has a bishop while player with black pieces only has a rook.

  • In chess, the columns (called Files) are denoted as alphabets(a-h) and rows (called Ranks) are denoted as numbers (1-8).
  • Any given square is a combination of file and rank. In the above figure the position of bishop is c3 while that of the rook is f6.
  • Bishop only moves diagonally from its position, in all 4 directions (top-right, top-left, bottom-right, bottom-left).
  • Rook moves either vertically (up and down) or horizontally (left and right) from its given position.
  • Both rook and bishop can capture one another only if the other piece falls in the valid motion path.

The Problem

We decide to move the black rook and play for its survival. The move happens as follows:

  1. Toss a coin, if it's heads, the rook moves up. If it's tails, the rook moves to the right.
  2. Roll 2 dice (6 sided). The sum of numbers on the face up side of both the dice will be the number of squares the rook moves.
  3. If the rook reaches the right most column on the board, it emerges again from the left most column.
  4. If the rook reaches the top most row, it emerges again from the bottom most row.
  5. Move the rook as described above for 15 rounds. If it manages to survive from being captured by the bishop, the player with the rook wins. Else the player with bishop wins.
  6. The starting position for rook is h1 square and bishop remains stationary on c3.

How do I get set up?

  • Clone this repository
  • Install Sbt
  • sbt run would run game.
  • sbt test & sbt jacoco will run test coverage

Sample Output

Initial state
a8 b8 c8 d8 e8 f8 g8 h8
a7 b7 c7 d7 e7 f7 g7 h7
a6 b6 c6 d6 e6 f6 g6 h6
a5 b5 c5 d5 e5 f5 g5 h5
a4 b4 c4 d4 e4 f4 g4 h4
a3 b3 c3 Bishop d3 e3 f3 g3 h3
a2 b2 c2 d2 e2 f2 g2 h2
a1 b1 c1 d1 e1 f1 g1 h1 Rook
Rook Col: h, Row: 1 Round: 1 Direction: Tails NumberOfMoves: 8
a8 b8 c8 d8 e8 f8 g8 h8
a7 b7 c7 d7 e7 f7 g7 h7
a6 b6 c6 d6 e6 f6 g6 h6
a5 b5 c5 d5 e5 f5 g5 h5
a4 b4 c4 d4 e4 f4 g4 h4
a3 b3 c3 Bishop d3 e3 f3 g3 h3
a2 b2 c2 d2 e2 f2 g2 h2
a1 b1 c1 d1 e1 f1 g1 h1 Rook
Rook Col: h, Row: 1 Round: 2 Direction: Tails NumberOfMoves: 6
a8 b8 c8 d8 e8 f8 g8 h8
a7 b7 c7 d7 e7 f7 g7 h7
a6 b6 c6 d6 e6 f6 g6 h6
a5 b5 c5 d5 e5 f5 g5 h5
a4 b4 c4 d4 e4 f4 g4 h4
a3 b3 c3 Bishop d3 e3 f3 g3 h3
a2 b2 c2 d2 e2 f2 g2 h2
a1 b1 c1 d1 e1 f1 Rook g1 h1
Rook Col: f, Row: 1 Round: 3 Direction: Tails NumberOfMoves: 11
a8 b8 c8 d8 e8 f8 g8 h8
a7 b7 c7 d7 e7 f7 g7 h7
a6 b6 c6 d6 e6 f6 g6 h6
a5 b5 c5 d5 e5 f5 g5 h5
a4 b4 c4 d4 e4 f4 g4 h4
a3 b3 c3 Bishop d3 e3 f3 g3 h3
a2 b2 c2 d2 e2 f2 g2 h2
a1 Rook b1 c1 d1 e1 f1 g1 h1
Bishop Captured Rook in iteration 3 !!