Puzzle Description:

Kyle Reese sent back in time by John Conner to protect his mother Sarah from the terminator. During their run they fall in love and Kyle impregnates Sarah. That child grows up to lead the resistance and send back a soldier to protect his mother...

#1: Jota (jota) on Apr 3, 2011

I'm not marking it as needing guessing, although I know started with edge logic but don't remember how I finished.

edge logic on the 7 in row 5 lets you get about 90 % of this solved
then edge logic on the 5 in row 14 is what i used to finish (although there are several ways)
no guessing
nice solve

Found to be logically solvable by Gator.

What bugaboo said.

thanks for entry, Bran

good one.
no guessing for me either.

I'm definitely missing something here... I'm dipped if I can see how to place any of those 7s! Each 7 has a pair of 3s in the next row/column, but there's no place to put the 7 without a singleton popping up somewhere along its side. I'm sure I'll feel foolish when I see it, but right now it seems not so much like "how do I start this thing" as "how is this one even possible?"

Marc- you're letting your assumptions get in the way. Just because (for r5's 7) there's a block of three possible in c4-6 or c16-18 doesn't mean that either needs to be used. There is one place in this top row where the 7 can be placed.

Here's a general hint for edge logic - If you see there's a place where a block cannot possibly be (like the singletons you mentioned) AND the clue you're trying to fit will not fit completely on one side of that problem, then that side cannot contain that clue (in a two-color puzzle, it will be white if there's no other clues that could fit there).

Goto next topic

You must register and log in to be able to participate in this discussion.