Site News

I wanted to share some life/site news with you all. Tomorrow I’m starting a new job at Google with their Life Sciences team. I just drove back to California for this unique opportunity, but I am quite far from being settled in.

As a result of this life change, I’m going to be taking an indefinite break from posting regular puzzles here. There may be a few random puzzles posted during this gap, but this past week was the last full week for awhile.

In the interim, there is still an open contest to solve (with a new hint).

And for most of you, there are still hundreds of past puzzles to look through. I’ve made a new archive page where you can readily download everything we’ve posted.

— Dr. S.

The Persistence of Memory by Prasanna Seshadri

The Persistence of Memory by Prasanna Seshadri

(View image directly for larger form.)

PDF

or solve online (using our beta test of Penpa-Edit tools using a composite mode where left click inside cell shades square, left click + drag draws line segment, right click inside cell adds dot, and right click on cell edge adds an x.)

Theme: TYCG (Thank You, Chris Green) — this is a Patron Puzzle reward.

Author/Opus: This is the 79th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Find a path from one dot to the other by moving horizontally or vertically between adjacent squares. The path cannot touch itself, even diagonally. All highlighted regions must be visited by the path, and may be re-entered. If two or more highlighted regions have the same shape and orientation, then how the path passes through those shapes must be identical. Or see here.

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

Time Standards (highlight to view): Grandmaster = 4:15, Master = 6:00, Expert = 12:00

Solution: PDF

Fillomino by John Bulten

Fillomino by John Bulten

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a composite mode for line/edge drawing and a number entry mode.)

Theme: 28 Dice

Author/Opus: This is the 10th puzzle from our contributing puzzlemaster John Bulten.

Rules: Standard Fillomino rules.

Answer String: For each cell in the marked rows/columns, enter the area of the polyomino it belongs to. Enter just the last digit for any two-digit number. Start with the 5th row, followed by a comma, followed by the 9th column.

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

Solution: PDF

Note: Follow this link for other classic Fillomino. If you are new to this puzzle type, here are our easiest Fillomino puzzles to get started on.

Tapa (Cipher) by Carl Worth

Tapa by Carl Worth

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode, a number entry mode for placing Tapa clues, and the composite Yajilin mode where left click marks cells, right click marks dots in cells or X’s on edges, left click+drag draws lines.)

Theme: Logical

Author/Opus: This is the 8th puzzle from guest contributor Carl Worth.

Rules: Standard Tapa rules, except that the digits have been encoded with a cipher into letters. Each letter represents a different positive integer, for the solver to determine.

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 = 2:30, Master = 4:00, Expert = 8:00

Solution: PDF

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

Snake Egg by Murat Can Tonta

Snake Egg by Murat Can Tonta

PDF

or solve online (using our beta test of Penpa-Edit tools using a composite mode where left click inside cell shades square, left click + drag draws line segment, right click inside cell adds dot, and right click on cell edge adds an x.)

Theme: Minimalism

Author/Opus: This is the 19th puzzle from guest contributor Murat Can Tonta.

Rules: Locate a snake (a 1 cell-wide path) in the grid whose head and tail are given. The snake can touch itself diagonally, but cannot touch itself orthogonally or revisit any square. Besides the snake, the remaining cells must form exactly nine white areas, one of each size from 1 to 9. Numbers in the grid must be part of white areas of the indicated size.
(Also see here: https://yureklis.wordpress.com/2012/07/02/snake-egg/)

Answer String: Enter the length in cells of 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.

Solution: PDF; a solution video is available here.

Time Standards (highlight to view): Grandmaster = 3:15, Master = 4:15, Expert = 8:30

YVGF ol Tenag Svxrf

YVGF ol Tenag Svxrf

CQS

Gurzr: Fcbvyre-serr

Nhgube/Bchf: Guvf vf gur 166gu chmmyr sebz bhe pbagevohgvat chmmyrznfgre Tenag Svxrf.

Ehyrf: Fgnaqneq YVGF ehyrf (jneavat: yvax znl pbagnva fcbvyref!).

Nafjre Fgevat: Ragre gur yratgu va pryyf bs rnpu bs gur funqrq frtzragf sebz yrsg gb evtug sbe gur znexrq ebjf, fgnegvat ng gur gbc. Frcnengr rnpu ebj’f ragel sebz gur arkg jvgu n pbzzn.

Gvzr Fgnaqneqf (uvtuyvtug gb ivrj): Tenaqznfgre = 4:00, Znfgre = 5:15, Rkcreg = 10:30

Fbyhgvba: CQS

Abgr: Sbyybj guvf yvax sbe bgure pynffvp YVGF. Vs lbh ner arj gb guvf chmmyr glcr, urer ner bhe rnfvrfg YVGF gb trg fgnegrq ba.

Star Battle by Bryce Herdt

Star Battle by Bryce Herdt

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Twin Galaxies

Author/Opus: This is the 3rd puzzle from guest contributor Bryce Herdt.

Rules: Standard Star Battle rules. Two stars per row, column, and region.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a star appears. Enter these numbers as a single string with no separators.

Time Standards (highlight to view): Grandmaster = 2:00, Master = 3:00, Expert = 6:00

Solution: PDF

Note: Follow this link for other classic Star Battles. If you are new to this puzzle type, here are our easiest Star Battles to get started on.

Kurotto by Prasanna Seshadri

Kurotto by Prasanna Seshadri

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Clue Symmetry and Logic

Author/Opus: This is the 78th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Kurotto rules.

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 with a comma.

Time Standards (highlight to view): Grandmaster = 0:30, Master = 1:00, Expert = 2:00

Solution: PDF

Note: Follow this link for other Kurotto puzzles. If you are new to this puzzle type, here are our easiest Kurotto to get started on. More Kurotto puzzles can be found in the ebook Kurotto by Prasanna Seshadri.

Contest and Schedule for Next Week

We hope you enjoyed all John’s puzzles from last week, which are fully contained in this PDF. If you solved the complete set, Grandmaster Puzzles would like to reward you with a copy of the seminal reference “A Dictionary of 4,573 Crucial Cross Words and their Clues”, coauthored by John Bulten. This out-of-print 1987 work was the first crossword dictionary we know of to rank words using the methodology now standard for “The New York Times”. All copies will be personally signed by J.B.!

To obtain your copy, simply enter the proper product code (read: the answer to the hidden puzzle) in the applet below before midnight, April 19th (three weeks from today) May 3rd May 17th, so that we can verify your address via email. Solvers will also be recognized in a later post.

As with our first Hidden Contest, this is a challenge of logic and observation. We’ll be adding hints here each week until the close of the entry period.

Hint 1 (4/5/2015): It’s all good, but I recommend 138956247.

Hint 2 (4/12/2015): To obtain the product code, simply follow the correct instructions in the correct order. A review of other puzzlemaster debut weeks may help out.

Hint 3 (4/19/2015): Following the example of other puzzlemasters here, John tried to leave his mark on these puzzles. After finding out what that means, you are looking for an answer with one word followed by several numbers.

(4/26/2015): No extra hint today, but we’re sharing the official solution packet for the week’s puzzles which may be useful.

Hint 4 (5/3/2015): You are looking for a single element in common across all of the puzzles. It may be easiest to find this by looking at the solutions that include shading (BACA, Slithersweeper, and Tapa).


Next week will be a regular variety mix with puzzles from six authors.

Hidden Shape Sudoku by John Bulten

Sudoku by John Bulten

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between Sudoku number entry mode and two modes, Shape and Surface, to manage the domino inventory.)

Theme: Double Domino
(Hidden shapes include a complete double-eight domino set. Double dominoes have been “doubled over” to fit within one square. Hidden names include J.S. Bach, Gabriel Faure, John Cage, and various chordal progressions and crossword game vocabulary.)

Author/Opus: This is the 9th puzzle from our contributing puzzlemaster John Bulten.

Rules: Standard Sudoku rules, using the letters A-H and a blank. Also, as in Shape Sudoku, there are some lettered shapes given beneath the grid that must be put in their proper places inside the grid; and, as in Battleship Sudoku, their proper places are indicated only partially. (Partial shape clues in the grid are not lettered but do not necessarily indicate the location of blanks.) The shapes can be rotated, but cannot be reflected; they can touch but cannot overlap.

Answer String: Enter the 3rd row from left to right, followed by a comma, followed by the 3rd column from top to bottom. (Use the capital letters A-H; use X for a blank.)

Time Standards (highlight to view): Grandmaster = 12:00, Master = 21:00, Expert = 42:00

Solution: PDF

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