02. Pawn Wars

package BonusZadachi2;

import java.util.Scanner;


public class PawnWars {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);


        int size = 8;
        char[][] board = new char[size][size];
        int whiteRow = 0, whiteCol = 0, blackRow = 0, blackCol = 0;

        // Read the board and locate the pawns
        for (int r = 0; r < size; r++) {
            String line = scanner.nextLine();
            for (int c = 0; c < size; c++) {
                board[r][c] = line.charAt(c);
                if (board[r][c] == 'w') {
                    whiteRow = r;
                    whiteCol = c;
                } else if (board[r][c] == 'b') {
                    blackRow = r;
                    blackCol = c;
                }
            }
        }

        while (true) {
            // White pawn move
            if (0 <= whiteRow - 1 && 0 <= whiteCol - 1 && board[whiteRow - 1][whiteCol - 1] == 'b') {
                System.out.println("Game over! White capture on " + (char) ('a' + blackCol) + (8 - blackRow) + ".");
                break;
            } else if (0 <= whiteRow - 1 && whiteCol + 1 < size && board[whiteRow - 1][whiteCol + 1] == 'b') {
                System.out.println("Game over! White capture on " + (char) ('a' + blackCol) + (8 - blackRow) + ".");
                break;
            } else {
                board[whiteRow][whiteCol] = '-';
                whiteRow--;
                board[whiteRow][whiteCol] = 'w';
                if (whiteRow == 0) {
                    System.out.println("Game over! White pawn is promoted to a queen at " + (char) ('a' + whiteCol) + "8.");
                    break;
                }
            }

            // Black pawn move
            if (blackRow + 1 < size && 0 <= blackCol - 1 && board[blackRow + 1][blackCol - 1] == 'w') {
                System.out.println("Game over! Black capture on " + (char) ('a' + whiteCol) + (8 - whiteRow) + ".");
                break;
            } else if (blackRow + 1 < size && blackCol + 1 < size && board[blackRow + 1][blackCol + 1] == 'w') {
                System.out.println("Game over! Black capture on " + (char) ('a' + whiteCol) + (8 - whiteRow) + ".");
                break;
            } else {
                board[blackRow][blackCol] = '-';
                blackRow++;
                board[blackRow][blackCol] = 'b';
                if (blackRow == 7) {
                    System.out.println("Game over! Black pawn is promoted to a queen at " + (char) ('a' + blackCol) + "1.");
                    break;
                }
            }
        }
    }
}