Tuesday, April 28, 2015

Puzzle 35 - Polyominous 8

So, an expansion to my favorite board game came out, the 1.0 version of Kerbal Space program came out, and I got my minecraft server working again, so updates might be sparse for a bit...

(Not that anyone cares, as I usually get 0-1 views a day)


Friday, April 24, 2015

Puzzle 34 - Process of Illumination 2

Let's play...Spot the Asymmetry!

...okay, the asymmetry in this puzzle was completely on accident.  I made that thing down there black for some reason and not in the upper left, and I didn't notice until after the whole puzzle was finished.  I didn't want to change the puzzle at that point so I just left it.

Thursday, April 23, 2015

Puzzle 33 - Straight and Arrow 4

This puzzle shows how cruel I can be.  Both for it's difficulty, and in making you not figure out pieces of information for ages after you feel like you should.


Wednesday, April 22, 2015

Puzzle 32 - Polyominous 7

EDIT 6-24-15: My brother finally got around to solving this thing (he's basically my extra test-solver), and it was found to be horribly broken.  The version below has fixed this.


Monday, April 20, 2015

Puzzle 31 - Pearls of Wisdom 4

Isn't solving puzzles fun?  Like, so fun that I solve them instead of make them and let this sit for a while...?


Thursday, April 16, 2015

Puzzle 30 - Room and Reason 4

I need to stop making these types of puzzles at this one place.  I always find a bunch of mistakes every time.  Last time I made one there, it turned into Room and Reason 2.


Puzzle 29 - Slitherlink 7

I learned two things making this puzzle:

1. I need to be in the right mood to make a good Slitherlink (I think I was this time).
2. I hate 0 in Slitherlinks for some reason.


Wednesday, April 15, 2015

Puzzle 28 - Pearls of Wisdom 3


Puzzle 27 - Slitherlink 6

So, when making logic puzzles, of course you can mess up.  You can either make there be no solutions (Fixing this usually makes a similar-difficulty logic puzzle), or you can make there be multiple solutions (fixing this usually makes a slightly easier logic puzzle because you have to add more information to make it work).  Sometimes, though, when it seems like there's multiple solutions, the extra solution(s) are ruled out by how the rest of the puzzle is designed.  This makes for an extremely hard logic puzzle, because you need to make a long sequence of possible outcomes to see if it's the right solution.

The reason I say this is to explain why this puzzle is so hard.  It's mostly a nice fairly difficult puzzle, but one part will make you pull your hair out.  Good luck.

Puzzle 26 - Polyominous 6

So, I've been really busy...  One of those things that I've been busy with was auditioning for Pirates of Penzance last weekend, and I got the Major-General's part!  To celebrate, here's a music themed puzzle, complete with musical notes, horribly-made bass clefs, and a couple things I threw in there because it was getting annoying making the puzzle without givens there.

Note to self: don't make a polyominous puzzle with this big of spaces again.

Thursday, April 9, 2015

Puzzle 25 - Process of Illumination 1

Maybe I should have done something special for puzzle 25.  Oh well.

Rules - Process of Illumination

Process of Illumination was invented by the Japanese puzzle company Nikoli.  The name comes from mathgrant.  (Look, I'm horrible at coming up with names, and don't like using the Japanese ones)
1. Place light bulbs in some of the white cells.
2. A light bulb illuminates its own cell and all cells in a horizontal or vertical line from it up to a black cell or the puzzles edge.
3. All cells must be illuminated.
4. No light bulbs may illuminate each other.
5. A number in a black cell says how many light bulbs are orthogonally adjacent (share an edge) with that black cell.

Puzzle 24 - Twincognito 1

For new puzzle types, I used to make the first puzzle first then make the example, but recently I realized it would be better to make the example first because I can train myself making it instead.  That definitely was the case for this; half of the grid could be any number, but making sure that they didn't make you figure anything out when I didn't want you to was pretty hard.  If you want to see how bad it can get, solve the example puzzle.

Rules - Twincognito

Twincognito was invented by the Japanese puzzle company Nikoli.  The name comes from mathgrant (I don't feel like linking it anymore, just look at earlier rules or something to find it if you want it).
1. Make each cell white or black.
2. No two black cells may share an edge.
3. All white cells must be connected to each other through their edges.
4. No two white cells with the same number may be in the same row or column.

Tuesday, April 7, 2015

Puzzle 23 - Arrowneous 3

After realizing that there's usually a lot of clumped givens in this type of puzzle, this was my attempt at fixing that.  I kind of did it.

Puzzle 22 - Arrowneous 2

EDIT: My brother finally got around to solving this, and there was a place where I miscounted and the puzzle ended up having multiple solutions.  The version below has been fixed.

EDIT 2: I've been solving a few random puzzles of mine, and found the upper right corner of this puzzle to be broken.  I don't have my original solution with me at the moment, so I won't fix it at this time.  For now, a broken puzzle will be here, and you do not need to attempt to solve it.

Puzzle 21 - Arrowneous 1


Rules - Arrowneous

Arrowneous was invented by the Japanese puzzle company Nikoli.  The name comes from Rick Griffin, a reader of mathgrant's blog.
1. Make each cell white or black.
2. No two black cells may share an edge.
3. All white cells must be connected to each other through their edges.
4. A white cell with a number and an arrow show how many black cells are in the row or column pointed at by the arrow.
5. Cells with a number and an arrow can be shaded in.  If they are, the clue is meaningless, and may or may not be true.

Sunday, April 5, 2015

Puzzle 20 - Straight and Arrow 3

A part of this puzzle shows that arrows aren't placed just for showing where the black cells are...

Friday, April 3, 2015

Puzzle 17 - Polycubeous 1


Rules - Polycubeous

Polycubeous is a three-dimensional version of polyominous.

1. Make a three-dimensional grid out of the two-dimensional ones by stacking them on top of each other, with the grid on the top being the top section of the 3D grid.  (The example puzzle is a dome when stacked this way.)
2. Divide the grid into polycubes.
3. Each space in the grid will have a number in it.
4. Each number must be in a polycube with that number of cubes.
5. No two polycubes with the same number of cubes may touch on any of their (square) edges.
6. A polycube may contain any number (including zero) of the numbers originally given.

Puzzle 16 - Pearls of Wisdom 2


Puzzle 15 - Pearls of Wisdom 1


Rules - Pearls of Wisdom

Pearls of Wisdom was invented by the Japanese puzzle company Nikoli.  The name comes from mathgrant (surprise, surprise).


1. Draw a single loop that connects the centers of the grid cells.
2. The loop may only travel horizontally or vertically, not diagonally (so all turns are right angles).
3. The loop may only turn at the centers of the grid cells.
4. The loop may not cross itself or branch off.
5. The loop must pass through every pearl (circle) on the grid.
6. The loop may not turn at a white pearl, but must turn at at least one of the adjacent cells in the loop.
7. The loop must turn at a black pearl, but may not turn at both of the adjacent cells in the loop.

Thursday, April 2, 2015

Puzzle 14 - Polyominous 5

I was starting a puzzle, and was thinking...  "What is the biggest rectangle I can fit on this piece of graph paper?"  It turned out to be 30x42.  Then this thing came out, after several days of making, testing, and fixing.

(click to enlarge)