Successfully coded an easy to understand SU-DO-KU solver for C++........... The code is as follows .............. //*** SU-DO-KU solver *** !! *** authored @ hYDRO ***\\ #include<iostream.h> #include<conio.h> void main() { clrscr(); int k[9][9],K[9][9],i,j,i1,j1,i2,j2,error,temp,count=0; cout<<"Enter SUDOKU problem (0 for blanks) : "<<endl; for(i=0;i<9;i++) { for(j=0;j<9;j++) { cin>>K[i][j]; //!!! MATRIX INPUT !!! k[i][j]=K[i][j]; } } cout<<"O.K.? (Enter 0 if OK, 1 to update): "; cin>>error; if(error==0) goto matrixvalidation; matrixupdation: while(1) { cout<<"Enter Row, Col, Revised number:(0 to exit) "; cin>>i>>j>>temp; //!!! CORRECTION !!! if(i>0&&j>0&&temp>=0&&i<10&&j<10&&temp<1...