i ll send u a question based on checking cheks in chess
try coding that in python ,
here is the question,
Problem 2: Check for Checks;
Source Module: checkChessCheck
Test Module: checkT est
Given a board position in chess, check if either the white king or the black
king is under check from one of the opposite color pieces.
• Input: A legal board position in chess — this is given as a list of lists
where both the main list and the sublists, each has exactly 8 elements.
Each sublist represents a row of the chess board. At the beginning of the
game the black pieces would have occupied rows 0 and 1 and the white
pieces would have occupied rows 6 and 7. White pieces are named with
upper case letters and black pieces with lower case. The alphabets used
for the different chess pieces are given below:
1. .: Blank (unoccupied) square
2. k, K: King
2
3. p, P: Pawn
4. b, B: Bishop
5. n, N: Knight
6. r, R: Rook
7. q, Q: Queen
• Output: A tuple (k, attacker, attacker_x, attacker_y) that gives
the king (black or white) which is under check, the identity of the attacker
and position of the attacker x - row, y - col). If no king is under attack in
the current board position then output None.
import unittest
from testgenDecorator import for_examples
from checkChessCheck import check_check, check_knight_attack, find_kings, check_pawn_attack
class TestChessCheck(unittest.TestCase):
@for_examples(([['r','n','b','q','k','b','n','r'],
['p','p','p','p','p','p','p','p'],
['.','.','.','.','.','.','.','.'],
['.','.','.','.','.','.','.','.'],
['.','.','.','.','.','.','.','.'],
['.','.','.','.','.','.','.','.'],
['P','P','P','P','P','P','P','P'],
['R','N','B','Q','K','B','N','R']], (0,4), (7,4), None),
([['r','.','b','q','k','b','n','r'],
['p','p','p','p','.','p','p','p'],
['.','.','n','.','.','.','.','.'],
['.','.','.','.','p','.','.','.'],
['.','.','.','.','P','.','.','.'],
['.','.','.','.','.','N','.','.'],
['P','P','P','P','.','P','P','P'],
['R','N','B','Q','K','B','.','R']], (0,4), (7,4), None))
def testNoCheck(self, board, black_king, white_king, knight_check):
'''
Test for knight checks
'''
kings = find_kings(board)
self.assertEqual(kings['k'], black_king)
self.assertEqual(kings['K'], white_king)
check = check_check(board)
self.assertEqual(check, knight_check)
@for_examples(([['.','.','.','r','k','b','.','r'],
['.','.','N','.','.','p','p','.'],
['p','.','P','p','.','.','.','p'],
['.','p','n','.','.','P','.','.'],
['.','.','.','.','.','.','.','.'],
['.','.','.','.','P','.','.','.'],
['P','.','.','.','.','.','P','P'],
['R','.','.','.','.','R','K','.']], (0,4), (7,6), ('k','N', 1, 2)),
([['.','.','.','.','.','.','.','.'],
['.','.','.','k','.','.','.','.'],
['.','p','n','.','p','.','.','.'],
['.','p','.','.','P','p','.','.'],
['.','.','.','K','.','P','.','.'],
['.','R','.','.','.','.','.','R'],
['P','P','.','.','.','.','.','.'],
['.','.','B','.','.','.','.','.']], (1,3), (4,3), ('K','n', 2, 2)))
def testKnightCheck(self, board, black_king, white_king, knight_check):
'''
Test for knight checks
'''
kings = find_kings(board)
self.assertEqual(kings['k'], black_king)
self.assertEqual(kings['K'], white_king)
check = check_check(board)
self.assertEqual(check, knight_check)
@for_examples(([['r','n','b','q','.','b','n','r'],
['p','p','p','p','p','.','.','.'],
['.','.','.','.','.','.','p','.'],
['.','.','.','.','.','.','.','k'],
['.','.','.','.','.','Q','P','p'],
['.','.','.','.','P','.','.','.'],
['P','P','P','P','.','P','.','P'],
['R','N','B','.','K','.','N','R']], (3,7), (7,4), ('k','P', 4, 6)))
def testPawnCheck(self, board, black_king, white_king, pawn_check):
'''
Test for knight checks
'''
kings = find_kings(board)
self.assertEqual(kings['k'], black_king)
self.assertEqual(kings['K'], white_king)
check = check_check(board)
self.assertEqual(check, pawn_check)
@for_examples(([['r','n','.','.','b','r','k','.'],
['.','.','.','.','.','p','p','p'],
['.','.','p','.','p','.','.','.'],
['p','p','q','P','.','.','.','.'],
['P','n','p','.','P','.','N','.'],
['N','.','.','.','.','P','P','.'],
['.','P','.','Q','.','.','B','P'],
['R','.','.','R','.','.','K','.']], (0,6), (7,6), ('K','q', 3, 2)))
def testQueenCheck(self, board, black_king, white_king, pawn_check):
'''
Test for knight checks
'''
kings = find_kings(board)
self.assertEqual(kings['k'], black_king)
self.assertEqual(kings['K'], white_king)
check = check_check(board)
self.assertEqual(check, pawn_check)
if __name__ == "__main__":
import unittest
from testgenDecorator import for_examples
from checkChessCheck import check_check, check_knight_attack, find_kings, check_pawn_attack
class TestChessCheck(unittest.TestCase):
@for_examples(([['r','n','b','q','k','b','n','r'],
['p','p','p','p','p','p','p','p'],
['.','.','.','.','.','.','.','.'],
['.','.','.','.','.','.','.','.'],
['.','.','.','.','.','.','.','.'],
['.','.','.','.','.','.','.','.'],
['P','P','P','P','P','P','P','P'],
['R','N','B','Q','K','B','N','R']], (0,4), (7,4), None),
([['r','.','b','q','k','b','n','r'],
['p','p','p','p','.','p','p','p'],
['.','.','n','.','.','.','.','.'],
['.','.','.','.','p','.','.','.'],
['.','.','.','.','P','.','.','.'],
['.','.','.','.','.','N','.','.'],
['P','P','P','P','.','P','P','P'],
['R','N','B','Q','K','B','.','R']], (0,4), (7,4), None))
def testNoCheck(self, board, black_king, white_king, knight_check):
'''
Test for knight checks
'''
kings = find_kings(board)
self.assertEqual(kings['k'], black_king)
self.assertEqual(kings['K'], white_king)
check = check_check(board)
self.assertEqual(check, knight_check)
@for_examples(([['.','.','.','r','k','b','.','r'],
['.','.','N','.','.','p','p','.'],
['p','.','P','p','.','.','.','p'],
['.','p','n','.','.','P','.','.'],
['.','.','.','.','.','.','.','.'],
['.','.','.','.','P','.','.','.'],
['P','.','.','.','.','.','P','P'],
['R','.','.','.','.','R','K','.']], (0,4), (7,6), ('k','N', 1, 2)),
([['.','.','.','.','.','.','.','.'],
['.','.','.','k','.','.','.','.'],
['.','p','n','.','p','.','.','.'],
['.','p','.','.','P','p','.','.'],
['.','.','.','K','.','P','.','.'],
['.','R','.','.','.','.','.','R'],
['P','P','.','.','.','.','.','.'],
['.','.','B','.','.','.','.','.']], (1,3), (4,3), ('K','n', 2, 2)))
def testKnightCheck(self, board, black_king, white_king, knight_check):
'''
Test for knight checks
'''
kings = find_kings(board)
self.assertEqual(kings['k'], black_king)
self.assertEqual(kings['K'], white_king)
check = check_check(board)
self.assertEqual(check, knight_check)
@for_examples(([['r','n','b','q','.','b','n','r'],
['p','p','p','p','p','.','.','.'],
['.','.','.','.','.','.','p','.'],
['.','.','.','.','.','.','.','k'],
['.','.','.','.','.','Q','P','p'],
['.','.','.','.','P','.','.','.'],
['P','P','P','P','.','P','.','P'],
['R','N','B','.','K','.','N','R']], (3,7), (7,4), ('k','P', 4, 6)))
def testPawnCheck(self, board, black_king, white_king, pawn_check):
'''
Test for knight checks
'''
kings = find_kings(board)
self.assertEqual(kings['k'], black_king)
self.assertEqual(kings['K'], white_king)
check = check_check(board)
self.assertEqual(check, pawn_check)
@for_examples(([['r','n','.','.','b','r','k','.'],
['.','.','.','.','.','p','p','p'],
['.','.','p','.','p','.','.','.'],
['p','p','q','P','.','.','.','.'],
['P','n','p','.','P','.','N','.'],
['N','.','.','.','.','P','P','.'],
['.','P','.','Q','.','.','B','P'],
['R','.','.','R','.','.','K','.']], (0,6), (7,6), ('K','q', 3, 2)))
def testQueenCheck(self, board, black_king, white_king, pawn_check):
'''
Test for knight checks
'''
kings = find_kings(board)
self.assertEqual(kings['k'], black_king)
self.assertEqual(kings['K'], white_king)
check = check_check(board)
self.assertEqual(check, pawn_check)
if __name__ == "__main__":
unittest.main()
