Puzzle 95: Logicsmith v2.0

Fillomino Read here for instructions.

Expected difficulty HardAnswerComment/E-mail if you want a solution to be published

Puzzle 95: Fillomino

Puzzle 95: Logicsmith v2.0
Fillomino

Four years ago (okay, 45 months ago), there’s Logicsmith Exhibition, back when Grant was still active on his blog (before he migrated to Grandmaster Puzzles). Back then, I was still starting at constructing logic puzzles; you can see my submission there. Here is a “revamped” version: exactly the same layout as before, and each of 1-9 appears exactly four times as in the competition.

…okay, I just got this theme idea and toyed with it, to liven up my blog again.

Puzzle 94: Writer Block

Cross the Streams Shade some of the cells black so that all black cells are connected and no 2×2 square is entirely shaded black. The clues outside the grid gives the contents of the corresponding row/column, reading from left to right and from top to bottom. A number means a group of consecutive black cells; two different groups in the same row/column must be separated by at least one white cell. A question mark indicates a single group of unknown size; an asterisk indicates an unknown number of groups (which may differ in size, and there might be no group at all).

Expected difficulty HardAnswerComment/E-mail if you want a solution to be published

Puzzle 94: Cross the Streams

Puzzle 94: Writer Block
Cross the Streams

Yay, I’m back. Actually, this might be temporary as well; I’m not sure why I don’t feel the same interest on making puzzles as I had a few years ago, but let’s hope I can still trickle out puzzles occasionally. (The title is a reference on that. Just back from writer block, if this is considered writing. Better than a title like “Logical”, at least.)

Meanwhile, I’ve been playing several “programming” games. I’ve completed SpaceChem (finished all obligatory puzzles for the story) a few months back; I got my hands on TIS-100 which I recently completed (but with the upcoming bonus campaign I’ll have several more puzzles to do); I’m redoing Manufactoria after I realized I haven’t completed it. Those might be not exactly the kind of puzzles that you (as in people that enjoy pencil puzzles like this) like, but who knows.

Puzzle 93: IVAN

Scrabble Fill a letter in some squares such that they form a Scrabble: all cells with letters are connected, every word on the right appears in the grid as a contiguous sequence of letters (not broken with other letters or empty cells) reading right (in the same row) or down (in the same column), and every such contiguous sequence of two or more letters form a word.

Expected difficulty MediumAnswerComment/E-mail if you want a solution to be published

Puzzle 93: Scrabble

Puzzle 93: IVAN
Scrabble

Surprise, a 5×4 puzzle having a medium difficulty. Actually I’m not sure you can solve this without brute force, but given the very small grid I think it should be easy enough to carefully enumerate all possibilities.

Puzzle 92: Word Puzzle?!

Bonza Word Puzzle Arrange the pieces given into a crossword pattern, like in the game (or puzzle genre) Scrabble, such that every contiguous sequence of two or more letters read left-to-right or top-to-bottom spells out a word, which are thematically linked. Also see Grant’s take on this.

Expected difficulty EasyAnswerComment/E-mail if you want a solution to be published

Puzzle 92: Bonza Word Puzzle

Puzzle 92: Word Puzzle?!
Bonza Word Puzzle

Let’s say I’m not too inspired.

On the other hand, I actually have the game. Of course, I’m always biased, preferring free games way more than games that include necessary in-app purchases (this includes Bonza for locking some of its puzzles, even if there are packs available with coins), but I suppose I should stop here before trashing more on the business model which I myself can’t understand why I loathe so much. The idea itself about “jigsaw crossword” is amazing. (By the way, I should have put the genre name as “Jigsaw Crossword” if I want to be neutral, but eh.) I might tinker with the idea again some time in the future.

A Good Snowman Is Especially Hard To Build

Yesterday I bought A Good Snowman Is Hard To Build, which is probably one of the rare occasions I actually bought a game. When I’m going this far to write a blog post about it, it’s either very good or very bad; A Good Snowman is undoubtedly the former.

On the other hand, because I cannot write a review (and not that this post is supposed to be a review anyway), I’ll just recommend everyone reading this blog for its puzzle contents to go buy it. Or not right away; it is sold according to the temperature for the first two weeks, and I got it when it was $7 yesterday. (Now it’s $10, so hope for London’s temperature, where the price is taken, goes down soon. After two weeks, it seems like the price becomes a flat $12.) Stock market kind-of thingy yay. If you’ve bought it and don’t think a 1.5-hour game (I completed the first thirty puzzles in 1.5 hours) doesn’t worth the price, then you haven’t found the second half of the game…

The rules of the game are unfortunately not explained explicitly (but you can actually figure them out pretty easily). But because this blog is mostly for deductive puzzle enthusiasts, which loathe MIT Mystery Hunt-style puzzles with absolutely no instructions, the rules of the first part follows. The rules for the second half of the game won’t be written here, because they are just so amazing.

You’re in a room with various walls, Sokoban-style, as some sort of featureless monster thingy. You can move in four cardinal directions. There are several snowballs on the grid, as well as some snow on the ground. You can push snowballs around on the ground, but cannot pull them, just like in Sokoban. You also cannot push snowballs to the wall.

Snowballs come in three distinct sizes: small, medium, and large. Rolling a snowball over a snow on the ground increases its size and removes the snow from the ground; a large snowball simply “absorbs” the snow, remaining a large snowball. A smaller snowball can be rolled on top of a larger snowball, Tower of Hanoi-style, and can be also pushed down. You cannot roll a larger snowball to a smaller (or equal-sized) snowball.

To win, use all snowballs to form snowman(s): a stack of three snowballs (which must necessarily be large, medium, and small from the bottom to the top). In case there are multiple snowmen to be built, once you form a snowman it cannot be disassembled any more. Example follows.


Sample puzzle follows. Solution is right beneath, so be careful.

A Good Snowman sample puzzle, by me so there's no spoilers

A Good Snowman sample puzzle

In the above, the black circle is you. The green squares are normal ground, without snow, while the white squares have snow. The gray squares are walls. The part to the right is a reference for snowball sizes, and what you’re aiming for. This puzzle is created by me, so you won’t be spoiled with any of the puzzles in the game, although you might be spoiled on some of the tricks.

Continue reading

Puzzle 91: Margin of Error

Heteromino Divide the white squares into polyominoes of size 3 such that no two identical polyominoes that are also identically oriented are orthogonally adjacent.

Expected difficulty HardAnswerComment/E-mail if you want a solution to be published

Puzzle 91: Heteromino

Puzzle 91: Margin of Error
Heteromino

Oh yay I’m alive.

There we go. Recently I got the inspiration of Heteromino with a two-cell wide empty border. A 10×10 doesn’t seem to work, since I only have 6×6 space to work with the black cells, but a 14×14 looks good. Besides, I can say “here’s the 10×10 puzzle, and in case you need it, here’s two-cell margin of error around the grid if you’re stuck or something”.

…yes, I appear to be terribly uninspired for titling puzzles.

Also, I appear to start playing Pokémon Trading Card Game Online. It’s free to play, although getting the in-game currency to get more cards might be a little hard.

Puzzle 90: Antimatter

Dual Masyu Follow regular Masyu rules. This is a loop puzzle: Draw a loop that passes some of the cells such that the loop never touches or crosses itself, the loop only turns on cell centers, and the loop only makes 90-degree turns. The loop must pass all circles. When it passes a white circle, it must go straight, but must turn either before or after (or both). When it passes a black circle, it must turn, but must go straight both before and after it.

Additionally, this puzzle is two in one; it has two solutions that are coupled in the following way. Gray circles are two circles that have different colors in the two puzzles; if a gray circle acts as a white circle in one puzzle, then it must be black in the other, and vice versa. (In either puzzle, two gray circles may act as one white and one black; they don’t need to act as the same color.)

Expected difficulty MediumAnswerComment/E-mail if you want a solution to be published

Puzzle 90: Dual Masyu

Puzzle 90: Antimatter
Dual Masyu

No particular comment; just toying with interesting things.

Puzzle 89: Three-Four-Five

Fillomino Read here for instructions.

Expected difficulty MediumAnswerComment/E-mail if you want a solution to be published

Puzzle 89: Fillomino

Puzzle 89: Three-Four-Five
Fillomino

Just a classic Fillomino to fill my blog. No particular reason of why I have that theme; I was constructing the opening and saw that I only used the digits 3,4,5, so I went ahead and set it as the theme. Also, it took me more time to get the particular ending I wanted… Spoiler: [If the place rotationally symmetric to where you did the opening is also where you feel like doing the same trick again, then you get my intention. And yes, I wanted to force both the bottom-left and top-right corners to end in that way.]

Now back to doing homework.

Puzzle 88: I Give Up

Masyu Loop: Draw a loop that passes all the circles. Whenever the loop passes a white circle, it must go straight, but turns either before or after the circle (or both). Whenever the loop passes a black circle, it must turn, but go straight on both before and after the circle.

Expected difficulty MediumAnswerComment/E-mail if you want a solution to be published

Puzzle 88: Masyu

Puzzle 88: I Give Up
Masyu

This puzzle was intended to be completely antisymmetric and has the same (okay, mirrored) pattern of givens as this puzzle. Turns out both objectives aren’t met. I give up tweaking it, hence the name.

Puzzle 87: Jagged Squares

Futoshiki Latin square: Put a number between 1 and 6 into each cell inclusive such that each row and column contains exactly one instance of each number. The grid has inequalities in it, which must be satisfied by the numbers in the corresponding cells.

Expected difficulty MediumAnswerComment/E-mail if you want a solution to be published

Puzzle 87: Futoshiki

Puzzle 87: Jagged Squares
Futoshiki

Just to put some content in, ugh.