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Monday Mutant 30: Double Entry

Draw a single loop that connects the grid cells. The loop may only travel horizontally or vertically, and never diagonally (so all turns are of 90 degrees). The loop may only turn at the centers of grid cells, and may not cross itself or branch off. Every grid cell must be used, and the loop must enter and exit every region of the grid exactly twice. (The regions are colored as an aesthetic only.)

Monday Mutant 29: Double Entry

Draw a single loop that connects the grid cells. The loop may only travel horizontally or vertically, and never diagonally (so all turns are of 90 degrees). The loop may only turn at the centers of grid cells, and may not cross itself or branch off. Every grid cell must be used, and the loop must enter and exit every region of the grid exactly twice. (The regions are colored as an aesthetic only.)
This puzzle genre comes via MellowMelon.

Puzzle 425: Tetra Firma 27

It's my traditional 31x45 puzzle which I do every 25 puzzles! Posting huge puzzles never gets old! Figuring out what to say about them, though, does. :[ As such, I will just link to this completely irrelevant XKCD comic (which happens to also be number 425). Enjoy the huge puzzle, everybody!
Rules of Tetra Firma
(click to enlarge)

Puzzle 424: Straight and Arrow 30

No comment.

Puzzle 423: The Inner Limits 3

Considering that The Inner Limits was one of the first puzzle types I posted on my old blog, I'm sure it must seem pretty astounding that I've waited this long to bring it here. . .

Puzzle 422: The Inner Limits 2

No comment.

Puzzle 421: The Inner Limits 1

No comment.

Rules -- The Inner Limits

The Inner Limits was invented by the Japanese puzzle company Nikoli (under the name Bag, although the name Corral is probably more well-known amongst the global puzzle community).

1. Draw a single loop along the grid lines. The loop may not cross itself or branch off. In other words, the interior of the loop will be a single polygon.
2. Every number must be contained inside the loop.
3. A number indicates how many grid cells, including the cell itself, lie in an uninterrupted horizontal or vertical line from that cell, up to the nearest edges of the loop.

Monday Mutant 28: Process of Illumination (EX)

In this Process of Illumination puzzle, a number in a circle represents how many light bulbs are on cells which share an edge with that cell, while a number in a square represents how many of the edges of that black cell are illuminated by light bulbs (the top and bottom edges can only be illuminated vertically, and the left and right edges and only be illuminated horizontally). Some of the black cells are triangular; like other black cells, they cannot have a bulb on them, and they don't need to be illuminated. However, these cells function as mirrors, and reflect the light of any light bulbs which illuminate them. The rules are otherwise unchanged.
This variation comes via MellowMelon.

Monday Mutant 27: Fencing Match (crosslink)

In this Fencing Match puzzle, the loop may pass through a dot twice, but only if the loop goes straight through that dot both times, once horizontally and once vertically. The rules are otherwise unchanged.

Puzzle 420: Totally Awesum 21

Today is the 25th birthday of Mike Sylvia, a member of the puzzle community whom I've come to kinda sorta respect. He, and I quote, "may be the only person who can truthfully say his Facebook picture is of him drinking Dr. [sic] Pepper out of a wine glass in a Taco Bell while wearing a suit." What will he get for his birthday? A puzzle with two 25's in the first column! Yay!

Monday Mutant 26: Melon's Secret Castle

Draw a single loop that connects the grid cells. The loop may only travel horizontally or vertically, and never diagonally (so all turns are of 90 degrees). The loop may only turn at the centers of grid cells, and may not cross itself or branch off. A cell containing a number and an arrow represents the total length of the horizontal (for a left or right arrow) or the vertical (for an up or down arrow) line segments in the row or column pointed at by the arrow (or, equivalently, how many cell boundaries the loop passes through in that direction). The loop may not pass through a cell containing a numbered arrow clue, but all such clues which are in a white cell must be inside the loop, and all black cells must be outside the loop.

Monday Mutant 25: Melon's Secret Castle

Draw a single loop that connects the grid cells. The loop may only travel horizontally or vertically, and never diagonally (so all turns are of 90 degrees). The loop may only turn at the centers of grid cells, and may not cross itself or branch off. A cell containing a number and an arrow represents the total length of the horizontal (for a left or right arrow) or the vertical (for an up or down arrow) line segments in the row or column pointed at by the arrow (or, equivalently, how many cell boundaries the loop passes through in that direction). The loop may not pass through a cell containing a numbered arrow clue, but all such clues which are in a white cell must be inside the loop, and all black cells must be outside the loop.
As my oh-so-clever title alludes to, this puzzle genre was invented by MellowMelon.

Puzzle 419: Eliza Pseudonym of Puzzlania 12

No comment.


During the month of June, Eliza Pseudonym and her friends Anna, Barbra, Carla, and Delilah each went to a venue known as The Euterpean Theatre to watch a different musical. Each woman went to the theatre on a different day (June 1, June 8, June 15, June 22, and June 29), and each woman paid a different amount for her ticket ($60, $80, $100, $120, $140). From the clues below, determine which musical each woman saw, which day each woman saw it, and how much each woman's ticket cost.

1. One woman saw "Rant" precisely one week after Anna watched a musical, but precisely one week before someone viewed "Pesticide Story".
2. Delilah's trip to the theatre was sometime before that of the woman who paid $100 for her ticket.
3. Carla paid $120 for her ticket; she went to The Euterpean Theatre precisely one week after the performance of "A Coarse Line" was attended.
4. Eliza visited the theatre precisely one week after the woman did whose ticket had a price of $80.
5. The ticket to see the musical "The Bantam of the Opera" was precisely $20 less expensive than the "Cots" ticket; one of these two musicals was the one watched on June 15.
6. Barbra bought the least expensive ticket.

Puzzle 417: Room and Reason 29

Issue 8 of Dr. Gareth Moore's Sudoku Xtra magazine contains two puzzles contributed by me! They are exclusive to the magazine, and will remain that way unless I figure out how to publish a book or something, so you may want to buy it. (The magazine also contains over 100 puzzles created by Dr. Moore himself, and a few pages of "Community Puzzles" contributed by others.) If you do buy the magazine, please consider sending me a small donation via PayPal, since the only payment Dr. Moore is able to give me is a free copy of the magazine (and the knowledge that my puzzles are being enjoyed). :)

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