![](/31L0VZT67NTUIVMN2E.jpg)
Computerphile Sudoku Python
grid = [
[ 5, 0, 0, 1, 0, 0, 7, 0, 0 ],
[ 0, 2, 0, 0, 0, 7, 1, 0, 0 ],
[ 3, 0, 1, 4, 0, 0, 8, 5, 2 ],
[ 6, 1, 0, 5, 7, 2, 4, 0, 8 ],
[ 0, 0, 2, 9, 6, 0, 0, 0, 0 ],
[ 0, 4, 0, 0, 3, 0, 6, 2, 7 ],
[ 4, 5, 9, 0, 8, 0, 0, 7, 0 ],
[ 1, 3, 0, 0, 0, 0, 9, 8, 6 ],
[ 2, 0, 0, 0, 1, 0, 0, 4, 3 ]
]
def possible(y,x,n):
for i in range(0,9):
if grid[y][i] == n:
return False
for i in range(0,9):
if grid[i][x] == n:
return False
x0 = (x//3)*3
y0 = (y//3)*3
for i in range(0,3):
for j in range(0,3):
if grid[y0+i][x0+j] == n:
return False
return True
def solve():
print("solving")
for y in range(9):
for x in range(9):
if grid[y][x] == 0:
for n in range(1,10):
if possible(y,x,n):
grid[y][x] = n
solve()
grid[y][x] = 0
return
printGrid()
input()
def printGrid() :
for n in range(0,9):
print(grid[n])
solve()
Documents
Explore...
C# Cook Book // Tic Tac Toe (GUI)
Hartismere Website :: A History :: 2010
Sea water made drinkable using graphene
Hartismere Website :: A History :: 1999
New...
Hartismere Family of Schools Art Exhibition - Somerleyton Hall
Artificial intelligence and assessments
Design and Technology: Literacy
Discover...
Python Programming Computerphile Videos Computer Science Crashcourse Safeguarding Archive Results Do The Right Thing Just For Fun Welcome Captain Fantastic ABU My Exams The Stories We Tell Pan's Labyrinth Careers and Training TED GCSE Options GCSE CS
Uh-oh - we were unable to load our website on your browser so we're showing you a plain HTML version.
We use many features found in modern browsers and regrettably yours seems incompatible.
However this legacy version contains (very, very nearly) all the same content. Each page is rendered on our server and doesn't rely on any browser features except the odd font. It doesn't even need Javascript or fancy CSS. It's like being in 1995!
Your browser is reporting itself to us as Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com). Please consider updating your browser to make the most of our website.
If you would like to try our proper website again - you can do so here...