Tag Archives: nikoli

Puzzle 6: Antisymmetric Light Bulbs

Akari Put some light bulbs on the cells of the grid. Light bulbs illuminate all squares in the four orthogonal directions (up, down, left, right), up until reaching an edge of the grid or a black square. Illuminate all squares, but no light bulb may illuminate another light bulb. A number on a black square determines the number of light bulbs orthogonally adjacent to it.

Expected difficulty Easy • Answer • Comment/E-mail if you want a solution to be published

Puzzle 6: Akari

Puzzle 6: Antisymmetric Light Bulbs
Akari

We interrupt the IMO 2012 series for this post and the next post.

Yay for puzzles. Guess I’m back at “logicsmithing”.

This one is a pretty easy Akari. However, the aesthetic part of this puzzle is rather high by my standards. Opposing givens add up to 3, just like some Slitherlink I’ve seen…

*went browsing for like 30 minutes*

Oh hey I can’t find that puzzle. Whatever; it means I can make it some time soon and claim it as the only one in the last [insert a small time interval (less than a year)] 😛

Whatever. Akari, 10×10. Would go to an easy or something. Did I repeat myself?

Puzzle 4: Take One

Surveyors Heyawake (v0.1) Follow regular Heyawake rules: Follow dynasty rules. Additionally, no connected white cells in the same row/column may span over one bold border.

There are numbers in the grid. For each “region” (bold-bordered area), exactly one of the numbers act as a Heyawake clue: the number is equal to the number of black squares in the region. All other numbers are Minesweeper clues: each number is equal to the number of black squares on the number or adjacent to the number.

Expected difficulty Hard • Answer • Comment/E-mail if you want a solution to be published

Puzzle 4: Surveyors Heyawake

Puzzle 4: Take One
Surveyors Heyawake

Original text
Yeah bad title maybe. But I think this one has some pretty tricks waiting (besides the tricks of Heyawake)… I’m trying to get a few basic tricks I figured out here. However, this would be rated somewhere like medium, or 4 out of 10. Whoa.

And yes, I miscounted; I didn’t see Puzzle 3 in my book so I reported that I had only two puzzles ready, while I have three. 😛

Additional text on 27 September 2013
Take One of Surveyors Heyawake. When the rules are still rather crude. (The finalized version is actually much more complex x3 )

Puzzle 3: Obligatory Douglas Adams Reference

Fillomino Follow regular Fillomino rules.

Expected difficulty Medium • Answer • Comment/E-mail if you want a solution to be published

Puzzle 3: Fillomino

Puzzle 3: Obligatory Douglas Adams Reference
Fillomino

Original text of post
The answer to Life, Universe, and Everything. Or is it the answer to this Fillomino? This Fillomino is not as easy as it seems, although it is indeed still easy for regular Fillomino solvers. But the theme is funny, right?

Additional text on 27 September 2013
*facepalming at my own choice of words a year and a half ago*

Last updated 27 September 2013

Puzzle 2: Whirlpools

Jigsaw Slitherlink Follow Slitherlink rules: Draw a loop along the gridlines (only horizontal and vertical movements between the dots) such that the loop never touches or crosses itself. A number on a square indicates the number of edges of the square that are on the loop (not inside, on).

In addition, the board has been broken into pieces. Assemble the pieces before solving. The pieces cannot be rotated nor reflected.

Expected difficulty Medium • Answer • Comment/E-mail if you want a solution to be published

Puzzle 2: Jigsaw Slitherlink

Puzzle 2: Whirlpools
Jigsaw Slitherlink
(click to enlarge)

Original text of post
Yes I’m doing weird variations now. Shouldn’t be too hard with several forced clues actually, but well, it’s first attempt on Slitherlink Jigsaw.

Last updated 27 September 2013

Puzzles!

Yeah, I will continue making puzzles, only not at the same rate as the one in my blog. Probably once every time I have the time. Maybe like betaveros and his one-month-a-puzzle schedule (though he starts deviating to less than a week per puzzle (who said I won’t either? (yay parentheses nesting))). If I can make the picture from this phone. >_<

Meanwhile, inspired from this blog entry, here’s a little puzzle for you to crack…

S01 – Slitherlink

This is a Slitherlink puzzle, with the All-Odd variation. All the odd numbers have been given to you; an empty cell indicates that its clue is not odd. Your task is not (only) to find the solution; your task is to prove that the solution is unique.

EDIT: Okay prove that there is no solution. Apparently you must make a loop.

Yeah it’s cruel. And whoa a post within a post.