freecodecamp--freecodecamp/curriculum/challenges/english/blocks/daily-coding-challenges-python/69b5b2be76ec8135a7fbe973.md

id, title, challengeType, dashedName

id	title	challengeType	dashedName
69b5b2be76ec8135a7fbe973	Challenge 244: Rook and Bishop Attack	29	challenge-244

--description--

Given a string for the location of a rook on a chess board, and another for the location of a bishop, determine if one piece can attack another.

A standard chessboard is 8x8, with columns labeled A through H (left to right) and rows labeled 1 through 8 (bottom to top). It looks like this:

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	D3	E3	F3	G3	H3
A2	B2	C2	D2	E2	F2	G2	H2
A1	B1	C1	D1	E1	F1	G1	H1

• Rooks can move as many squares as they want in a horizontal or vertical direction.
• Bishops can move as many squares as they want in any diagonal direction.
• One piece can attack another if it can move to the location of that piece.

Return:

• "rook" if the rook can attack the bishop.
• "bishop" if the bishop can attack the rook.
• "neither" if neither piece can attack one another.

--hints--

rook_bishop_attack("A1", "A5") should return "rook".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(rook_bishop_attack("A1", "A5"), "rook")`)
}})

rook_bishop_attack("C3", "F6") should return "bishop".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(rook_bishop_attack("C3", "F6"), "bishop")`)
}})

rook_bishop_attack("D4", "D7") should return "rook".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(rook_bishop_attack("D4", "D7"), "rook")`)
}})

rook_bishop_attack("B7", "H1") should return "bishop".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(rook_bishop_attack("B7", "H1"), "bishop")`)
}})

rook_bishop_attack("B3", "C5") should return "neither".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(rook_bishop_attack("B3", "C5"), "neither")`)
}})

rook_bishop_attack("G3", "E8") should return "neither".

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(rook_bishop_attack("G3", "E8"), "neither")`)
}})

--seed--

--seed-contents--

def rook_bishop_attack(rook, bishop):

    return rook

--solutions--

def rook_bishop_attack(rook, bishop):
    col_diff = abs(ord(rook[0]) - ord(bishop[0]))
    row_diff = abs(int(rook[1]) - int(bishop[1]))

    if rook[0] == bishop[0] or rook[1] == bishop[1]:
        return "rook"
    if col_diff == row_diff:
        return "bishop"
    return "neither"