Rohan Rao - 2014-10-24 6:44 PM
@lenzo
That was fun to watch! Though, I wonder how you put the 1 and 6 in Row-2 for the 6x6 Surplus right at the start?
I don't remember what was my thinking ,I now see that the 6 in the first area can only be in r1c1 or r2c1, then 6 is in r6c3 and in r4c6, then 6 can not stay in r2c6 then is in r2c1.
But I saw that I was quick to put it but do not put the other easy 6 in r6c3 and r4c6 then i think it was a lucky mistake because it was my absolute first sudoku surplus...