Schedule for Next Week

A PDF of the recent guest contributors’ week can be found here.

This upcoming week features puzzles from Jamie Hargrove, one of our super grandmaster patrons who has recently gotten into puzzle construction. The week is themed around two puzzle genres, Nurikabe and Yajisan Kazusan, and begins harder than usual.

Our patrons will also be receiving a bonus Yajisan Kazusan by Prasanna Seshadri, access to puzzle solutions, and a video walkthrough of the Thursday puzzle. If you’d like to receive some of these special rewards, please become one of our patrons on Patreon.

With the US Puzzle Championship and other summertime activities coming up, our next week of puzzles will be in two weeks with another style from The Art of Puzzles 2 being debuted.

Cave by Murat Can Tonta [Patron Bonus]

We make posts for our patron bonus puzzles so that people have a space to comment on these puzzles, mark as FAVES, or log their solving. If you are interested in receiving an extra puzzle each week, become a patron at the Master level or above at Patreon.

Cave by Murat Can Tonta

Theme: Diagonal Series

Author/Opus: This is the 67th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Cave rules.

Answer String: Enter the length in cells of each of the cave segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma.

Time Standards (highlight to view): Grandmaster = 2:15, Master = 3:30, Expert = 7:00

Note: Follow this link for other classic Caves. If you are new to this puzzle type, here are our easiest Cave Puzzles to get started on. More Cave puzzles can be found in The Art of Puzzles and in Roger Barkan’s Colossal Cave Collection.

Yajilin by David Olmsted

Yajilin by David Olmsted

(View image directly for larger form.)

PDF

Theme: Ladders

Author/Opus: This is the 1st puzzle from guest contributor David Olmsted.

Rules: Standard Yajilin rules.

Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. If the loop only has vertical segments in the marked row, enter 0. Separate each row’s entry with a comma.

Time Standards (highlight to view): Grandmaster = 7:30, Master = 13:45, Expert = 27:30

Note: Follow this link for other classic Yajilin. If you are new to this puzzle type, here are our easiest Yajilin to get started on. More Yajilin puzzles can be found in The Art of Puzzles 2.

Snake Pit X by Takeya Saikachi

Snake Pit by Takeya Saikachi

PDF

Theme: Clue Symmetry & Logic

Author/Opus: This is the 1st puzzle from guest contributor Takeya Saikachi.

Rules: Divide the grid along the boundary lines so that every cell belongs to a snake. A snake is a one-cell-wide path at least two cells long that does not touch itself, not even diagonally. Circled cells must be at one of the ends of a snake. A snake may contain one circled cell, two circled cells, or no circled cells at all. Numbered cells must be part of a snake with a length of exactly that number of cells. A snake may contain one number, multiple identical numbers, or no numbers at all. Two snakes of the same length cannot touch each other horizontally or vertically. [+ new rule] Cells with an X cannot be an end of a snake.

Also see this example:

Snake Pit

Answer String: For each cell in the marked rows/columns, enter the length of the snake it belongs to. Enter just the last digit for any two-digit number. This example has the key “33553,44664”.

Time Standards (highlight to view): Grandmaster = 5:00, Master = 10:30, Expert = 21:00

Note: Follow these link for other Fillomino or Snake puzzles.

Pentosnake by Nikolai Beluhov

Pentosnake by Nikolai Beluhov

PDF

Theme: One Letter Clue

Author/Opus: This is the 3rd puzzle from guest contributor Nikolai Beluhov.

Rules: Draw a snake (a 1 cell-wide path) in the grid whose head and tail are given by circled cells. The snake can touch itself diagonally, but cannot touch itself orthogonally. All cells that are not part of the snake must be part of a pentomino (i.e., an orthogonally connected group of five cells). These unused pentominoes cannot touch orthogonally but can touch diagonally. A letter in a cell represents the pentomino shape that the cell belongs to. Pentomino shapes can be repeated in the grid, and can also be rotated and reflected. (Lettered cells cannot be used by the snake.)

Answer String: Enter the number of cells in each of the snake segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma.

Time Standards (highlight to view): Grandmaster = 4:45, Master = 7:15, Expert = 14:30

Note: Follow this link for other Snake puzzles.

Araf by Joseph Howard

Araf by Joseph Howard

PDF

Theme: Clue Symmetry & Logic

Author/Opus: This is the 1st puzzle from guest contributor Joseph Howard.

Rules: Standard Araf rules.

Answer String: Enter the number of cells in each connected group (between bold lines) in the marked rows.

Time Standards (highlight to view): Grandmaster = 3:45, Master = 6:15, Expert = 12:30

Note: Follow this link for more Araf puzzles on this website. If you are new to this puzzle type, here are our easiest Araf Puzzles to get started on.

LOTS by Bryce Herdt

LOTS by Bryce Herdt

PDF

Theme: Logical

Author/Opus: This is the 9th puzzle from guest contributor Bryce Herdt.

Rules: [Variation of LITS]. Shade exactly four connected cells in each outlined region, to form an L, O, T, or S tetromino, so that the following conditions are true:
(1) All shaded cells are connected with each other;
(2) No 1×4 group of cells can be entirely shaded black;
(3) When two tetrominoes in adjacent regions share an edge, they must not be of the same type (L, O, T, or S), regardless of rotations or reflections.

Answer String: Enter the length in cells of each of the shaded segments from left to right for the marked rows, starting at the top. Separate each row’s entry from the next with a comma.

Time Standards (highlight to view): Grandmaster = 3:30, Master = 5:15, Expert = 10:30

Note: Follow this link for more variations of LITS and this link for classic LITS. If you are new to this puzzle type, here are our easiest LITS to get started on.