The N-Queens problem is a classic backtracking problem first introduced by the mathematician Franz Nauck in 1850. The problem statement is simple: place N queens on an NxN chessboard such that no two queens attack each other. In 1960, the computer scientist Werner Erhard Schmidt reformulated the problem to a backtracking algorithm.
def place_queens(board, col): if col >= n: result.append(board[:]) return queen of enko fix
def solve_n_queens(n): def can_place(board, row, col): for i in range(col): if board[row][i] == 1: return False The N-Queens problem is a classic backtracking problem
for i in range(n): if can_place(board, i, col): board[i][col] = 1 place_queens(board, col + 1) board[i][col] = 0 col): if col >
return True