n=10;
m=20;
q=5;
chessboard=[|1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1|
1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0|
1,1,1,1,1,1,1,1,1,0,1,1,1,0,1,1,1,0,1,1|
1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0|
1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0|
1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0|
1,0,1,0,1,0,1,1,1,0,1,0,1,0,1,0,1,0,1,0|
1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0|
1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0|
1,1,1,0,1,1,1,0,1,1,1,0,1,1,1,0,1,1,1,0|];
location=[|10,3,1,7,9,9|
6,17,5,19,6,13|
1,13,10,7,8,7|
6,17,9,13,8,9|
8,15,7,8,10,1|];