Puzzle Description:

D-day.

#1: whatever (nuts) on Jun 6, 2014 [HINT]

great solve!

hate to burst your bubble ppl, but there is no guessing to this puzzle. nor is there any deep look-ahead....I didn't track the solve, but it requires iel to dot both rt and left of the 6 in r19. there is a "one can be black but not both" on the 2 at the bottom of c7 that forces the 4 in c5 to be at the bottom. there is el and iel on the top 3 rows. and again, iel on the 5 in c19. a lot of steps and slowly getting dots in order to place blacks, etc, but all moderate look-ahead with absolutely no guessing!

great puzzle Thomas! luv it!

and ofc, knew exactly what was 70 years ago today... thanks for the puzzle! :) how is Ann?

Really I don't understand your abbreviations:
ppl, iel, rt.
I've said earlier: I use conjectural variates at solving pbn puzzles and this method doesn't contains different tvpes of logic. There is only PURE LOGIC.
:)

ppl = people
iel = internal edge logic
rt= right


pure, or not pure, people like to put names to things and explain how they got from point A to point B. you know me by a different name, Thomas. as a hint(don't say it!), I once made a puzzle for Ann and she gave me a peck. hope all is good on your side of the water!

Fun puzzle. I didn't notate but worked the 5 in c2 & c19 and the 6 & 10 in r1 & r2. Don't recall having difficulty with the 6 in r19.

more than one way to skin a cat....I started low

You're right, Kurt...

hahahaha...got it, huh? feel better for earlier, knowing it wasn't a newbie refuting you?

Guess I was going too deep with it. Thought it was moderate and didn't keep track of the number of steps. That puzz did logically solve.

How can I explain to Ann her friend won't be Kurt Kowalczyk evermore? :)
She is OK, just graduated first class in school! :)

(I thought it's a real "Today in History" theme. I salute first rater)

you were right, whatever, it is a good solve

The red & blue can be placed with color logic, and a little of the black with line logic. Then, (w/ LL between):

edge logic 6 r1 = c1-6 white
edge logic 10 r2 = c1w
internal edge logic 10 r2 = c19-20w (If it goes into c19, the 5 will force the right 3 in r3 to be under it, and then some - but not all - of the crossing 2s will have to go up into r1, conflicting with the 6.)

edge logic 6 r1 = c15-19w
edge logic 10 r2 = c3-5w (It can be ruled out because the 1 in r3 is already placed.)

Then LL to finish.

Found to be solvable with moderate lookahead by infrapinklizzard.

Thomas, I looked up "conjectural variates" and found only "conjectural variations" which is an extension of game theory (but not this kind of game) dealing with market forces within oligopolies.

Can you explain what you mean?

No I can't unfortunately. My English is poor to explain logical methods. We wrote and published this method in Hungarian and Slovak but didn't become widely known. It happened about 2001-02.
Really it comes from practising. In special cases I don't start with counting "line logic" but "edge logic". The base is (so called) conjectural variete. This method much faster than counting simple rows.
You could name it lookahead or guessing in reason of necessity. We wrote about it as an efficient solving method for expert solvers.
:)

I started by looking at the top two rows. There's a pattern of 2 1 2 2 5 2 2 2 1 2 that perfectly lines up with the 6 10 and 3-1-3 clues.

My logic tends to be more intuitive and visual than the accepted logic types. I still can't get widespread acceptance of my "thick edge" logic. :)

And what a day! Nice solve thanks!

Goto next topic

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