Puzzle 58: That Classic Board Game

Mastermind There is a hidden 5-digit string, where its characters are among 1-9 only, but the characters may repeat. The objective is to discover this string. There are several guesses that has been made about the string. Each guess is a string of the same length and from the same character set, and its response is a number of black circles and/or white circles (might be none). A black circle indicates a character that exists in the hidden string and is on the correct position, while a white circle indicates a character that exists in the hidden string but is not on the correct position. For example, if the hidden string is 11223 and the guess is 13123, three black circles for the first 1, the 2, and the last 3, and a white circle for the other 1 will be awarded.

Difficulty 1.5/10 Master time 0:20 Expert time 0:50

Puzzle 58: That Classic Board Game
Mastermind

Whee. This thing is easy to make in head. This puzzle, not this genre. I’m sure it’s possible to make a difficult puzzle in this genre.

Also, note that Puzzle 57 has reached the fifth version, which I hope to be unique.

Finally, stay tuned. I’ll post one or two more puzzles soon.

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Puzzle 57: Ridiculous Changes

Fillomino Operations Divide the grid into polyominoes. Fill each cell inside a polyomino by the size of the polyomino, after applying all mathematical operations it contains (multiplication/division before addition/subtraction). For example, a 5-square polyomino containing -3 and ×2 will have the number 5×2-3 = 7 on each of its cells. Polyominoes that contain the same number may not be orthogonally adjacent.

Difficulty 6.5/10 Master target 4:00 Expert target 12:00

Puzzle 57: Ridiculous Changes
Operation Fillomino

EDIT: VERSION 5 fajshnkkbkxmidcvger I hope it’s the last update. I’m pretty sure it has a unique solution, but my intended solution requires a really large-scale (as in the whole thing) deduction as the first step. And hence, the expert time is doubled. Whee.

Erm. So I lied and posted a new puzzle before April. This was made while I was doing chemistry finals (after completing it).

Yes, I believe that 6.5/10 is accurate for a 7×7 grid, but I didn’t give this to my testsolvers so I don’t know what the others think. I’m giving this now, and I’ll edit the difficulty/time later after getting responses.

If you find the rules hard to understand, I suppose I should post an example…

Also, did you notice Puzzle 28 and FFF 25 are redone? (The originals were broken and I gave up finding a way to fix them.)

FFF 25: Yet Another Explosion

Norinori Fillomino Follow regular Fillomino rules. In addition, the regions form a valid Norinori grid: It must be possible to shade exactly two squares in each polyomino such that each black square is adjacent to exactly one other black square.

Difficulty 3.0/10 Master target 1:30 Expert target 2:30

FFF 25: Yet Another Explosion
Norinori Fillomino

Another out-of-sequence puzzle. The original FFF 25.

Also, it’s great that the original puzzle was broken; I managed to fit a polyomino of size over 4 times the largest given in this puzzle. Yay.

Puzzle 28: Square Battle

Fillomino Shapes Follow regular Fillomino rules. In addition, the given shapes must appear in the grid, at least as many as given.

Difficulty 4.5/10 Master target 1:00 Expert target 6:00

Puzzle 28: Square Battle
Fillomino Shapes

Renumbering is a pain. So, let’s make a puzzle that fills in the gap instead.

Here was the original Puzzle 28. Because ksun48 asked for a hard Fillomino variation, I believe that this is sufficiently hard, albeit the easy master target.

Also, yes, I don’t think Sky is going to tell his tale again. Most likely I will rephrase what he’s going to say, just like the paragraph two paragraphs above this.

Deception

Finally finished testsolving that thing.

27 puzzles, in which 9 will be previews. There might be more to replace bad puzzles; in particular I still have one or two genres where all of its puzzles are clocked under 5 minutes. (I want to make each genre to have a “difficult” puzzle.)

Highly variable testsolving times (02:04 to 31:17; FYI, all puzzles are 10×10 (except one which is 6×6))…

…but I haven’t given all the puzzles to other testsolvers (they are currently holding the latest batch of 15 untested puzzles given in January).

Deception on 18-19 May 2013 (third weekend in May). Still tentative schedule though.

Testsolving

So it’s finals, yet I still find some time to testsolve Deception puzzles.

There’s only one comment now: Surveyors Heyawake is insanely difficult to solve, even by me aka the author. I got 31:17 in a standard size 10×10 Surveyors Heyawake, and that’s only testing the first puzzle. A bunch of bifurcations.

Soon I’ll make the dimensions much smaller to allow easier bifurcation. -_-

On a probably related note, Deception is currently scheduled for 18-19 May 2013 aka the third weekend of May. This is tentative though, and might change.

PUZ-PRE v3

Remember this puzzle?

Yes, I hope I can start using applets. But then, I often do variations, so applets are not going to cover everything. Should begin making JavaScript Fillomino applets. (Well I do Fillomino a lot, so I’ll aim for making Fillomino applets first.) Anyone knows a good puzzle applet that supports many variations?

Puzzle 56: Party Quadrants

Region Party Fillomino This is a hybrid of Clones Fillomino and Extra Region Fillomino. The two blue 3×3 grids are from Clones; they must be identical. The two red 3×3 grids are from Extra Regions; each of the grids must form another valid Fillomino grid.

Difficulty 3.5/10 Master target 2:30 Expert target 7:00

Puzzle 56: Party Quadrants
Region Party Fillomino

Yes, Sky is really inspired today. Why not?

FFF 28: Sequences End Here

Fancy Fillomino February: This is a series of 28 (twenty-eight) 7×7 Fillomino puzzles over the February. Every 00.00 UTC+7 a new puzzle will be up. The basic Fillomino rules apply unless otherwise indicated.

Battleships Fillomino Follow regular Fillomino rules. Afterwards, shade some of the polyominoes black so no two black polyominoes touch each other even diagonally. The numbers outside the grid tells the number of shaded squares in the row/column.

Difficulty 3.0/10 Master target 0:20 Expert target 2:00

FFF28: Sequences End Here
Battleships Fillomino

Sky is tired to make stories.