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Check if given Sudoku solution is valid or not | Function to check if all elements of the board [ ] [ ] array store value in the range [ 1 , 9 ].
Traverse board [ ] [ ] array.
Check if board [ i ] [ j ] lies in the range.
Function to check if the solution of sudoku puzzle is valid or not.
Check if all elements of board [ ] [ ] stores value in the range [ 1 , 9 ].
Stores unique value from 1 to N.
Traverse each row of the given array.
Initialize unique [ ] array to false.
Traverse each column of current row.
Stores the value of board [ i ] [ j ].
Check if current row stores duplicate value.
Traverse each column of the given array.
Initialize unique [ ] array to false.
Traverse each row of current column.
Stores the value of board [ j ] [ i ].
Check if current column stores duplicate value.
Traverse each block of size 3 * 3 in board [ ] [ ] array.
j stores first column of each 3 * 3 block.
Initialize unique [ ] array to false.
Traverse current block.
Stores row number of current block.
Stores column number of current block.
Stores the value of board [ X ] [ Y ].
Check if current block stores duplicate value.
If all conditions satisfied.
Driver Code"
Solution in Python:

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What is a code to check if given Sudoku solution is valid or not and the other steps required?
assistant
#Here is code to check if given Sudoku solution is valid or not and the other steps required.
 def isinRange ( board ) :
	N = 9
	for i in range ( 0 , N ) :
		for j in range ( 0 , N ) :
		if ( ( board [ i ] [ j ] <= 0 ) or ( board [ i ] [ j ] > 9 ) ) :
			return False
	return True
def isValidSudoku ( board ) :
	N = 9
	if ( isinRange ( board ) == False ) :
		return False
	unique = [ False ] * ( N + 1 )
	for i in range ( 0 , N ) :
		for m in range ( 0 , N + 1 ) :
		unique [ m ] = False
		for j in range ( 0 , N ) :
		Z = board [ i ] [ j ]
		if ( unique [ Z ] == True ) :
			return False
		unique [ Z ] = True
	for i in range ( 0 , N ) :
		for m in range ( 0 , N + 1 ) :
		unique [ m ] = False
		for j in range ( 0 , N ) :
		Z = board [ j ] [ i ]
		if ( unique [ Z ] == True ) :
			return False
		unique [ Z ] = True
	for i in range ( 0 , N - 2 , 3 ) :
		for j in range ( 0 , N - 2 , 3 ) :
		for m in range ( 0 , N + 1 ) :
			unique [ m ] = False
		for k in range ( 0 , 3 ) :
			for l in range ( 0 , 3 ) :
			X = i + k
			Y = j + l
			Z = board [ X ] [ Y ]
			if ( unique [ Z ] == True ) :
				return False
			unique [ Z ] = True
	return True
if __name__ == ' _ _ main _ _ ' :
	board = [ [ 7 , 9 , 2 , 1 , 5 , 4 , 3 , 8 , 6 ] , [ 6 , 4 , 3 , 8 , 2 , 7 , 1 , 5 , 9 ] , [ 8 , 5 , 1 , 3 , 9 , 6 , 7 , 2 , 4 ] , [ 2 , 6 , 5 , 9 , 7 , 3 , 8 , 4 , 1 ] , [ 4 , 8 , 9 , 5 , 6 , 1 , 2 , 7 , 3 ] , [ 3 , 1 , 7 , 4 , 8 , 2 , 9 , 6 , 5 ] , [ 1 , 3 , 6 , 7 , 4 , 8 , 5 , 9 , 2 ] , [ 9 , 7 , 4 , 2 , 1 , 5 , 6 , 3 , 8 ] , [ 5 , 2 , 8 , 6 , 3 , 9 , 4 , 1 , 7 ] ]
	if ( isValidSudoku ( board ) ) :
		print ( " Valid " )
	else :
		print ( " Not ▁ Valid " )