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Comments on Puzzle #20408: Upsie downsie 4

By Tom O'Connell (sensei69)

Comments on Puzzle #20408: Upsie downsie 4

By Tom O'Connell (sensei69)

peek at solution solve puzzle

quality: difficulty: solvability: deep lookahead

**Puzzle Description:**

-THE END-

**#1: Norma Dee (norm0908) on Nov 18, 2012**

Weight lifter with two heads?

Nope. In the previous puzzle, she is falling (and if you noticed, a guy is poised ready to catch her), and in this one, that guy caught her.

Excellent puzzle Tom.

Thanks!

yrqw Adam

Found to be solvable with deep lookahead by infrapinklizzard.

I do not see a moderate lookahead solution to this one.

After LL, we end up with 5pixels +1blot left in both the horizontal and vertical directions.

Everything I see now chases around the rest of the puzzle for at least three steps.

E.G. if the 3 in r2 were in c9-11, then

> r2c12-13 are white

> So c12r4 and c13r6 are black

> So r4c18 and r6c20 are white

> So c18r8 and c20r8 are black

= which is a conflict with the 2 clue in r8. So r2c9 must be white

Then LL to finish.

or you could solve it like i did joe...after line logic i messed up the logic in my head for summing with blots and dotted C9R2 without sound reason. then it's just line logic to finish. see? much less lookahead.

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