# Puzzle No. 351 – 366 : Zagreb Open puzzles

I managed to somehow squeeze this set out in one day just before my exams started, right in the middle of the hectic submissions time in college. After that, Vladimir managed to squeeze in some time on that day itself to test these puzzles, so many thanks to him for that.

Rules all placed at the start of the post with the puzzles coming later (Trying a new format for posting, simply because its more convenient for me. The puzzle captions should aid you in knowing which rule is for what puzzle, but the ordering is the same as well, so it shouldn’t be much hassle either way.

Rules –

351 – Akari.

352 – Fillomino.

353 – Graffiti Snake.

354 – Heyawake.

355 – Japanese Sums – Place the digits 1-6 in some of the squares, so that no digit is repeated in any row or column. Sums on the outside indicate the sums of consecutive digits in that row or column, in order. Each sum is seperated by at least one empty square.

356 – LITS.

357 – Nanro – Write numbers in some cells of the diagram. All numbers in a region must be equal. The given number in a region denotes how many cells in this region contain a number (at least one). Same numbers must not be orthogonally adjacent across region boundaries. Numbered cells must not cover an area of size 2×2 or larger. All numbered cells must form a single orthogonally continuous area..

358 – Odd Even Skyscraper – In addition to Skyscraper rules linked to below, all outside clues that are shaded are odd. The rest are even. Range 1-6.

359 – Pentopia.

360 – Regional Yajilin.

361 – Shakashaka.

362 – Skyscrapers. Range 1-6.

363 – Tapa.

364 – Tents – Place a tent ortogonally next to each tree so that no two tents touch eachother, not even diagonally. Numbers on the outside indicate the amount of tents that are in that row or column.

365 – Walls Fillomino – Some region borders are given; i.e. the numbers on both sides must be different.

366 – Yajisan Kazusan.

Enjoy!

P351

P352

P353

P354

P355

P356

P357

P358

P359

P360

P361

P362

P363

P364

P365

P366

# Puzzle No. 342 : Regional Yajilin

Daily League Week 9 PDF and Week 10 PDF.

If you haven’t yet attempted Beginners’ Sudoku contest March edition on LMI, what’re you waiting for?!

Also, I have another hectic month ahead of me. Apart from the usual Puzzle related commitments (which will all get posted here in their respective times), I also have my final year of Post Grad exams through this month. There’s also a Sudoku GP towards the end of April. So, I’ll post here when I can, but don’t expect much in terms of quality and variety. I’ll make it up come May when I’ll be “College-free”.

Anyways, here’s a random Regional Yajilin. I’d say its not too tricky.

Enjoy!

P342

# Puzzle No. 316 – 336 : Polish Championship set

I’d mentioned a few posts earlier, that I’d contributed some puzzles to the Polish Championships this year. There was an offline qualifier, an online qualifier, the finals, and the playoffs. I think there was a good share of my puzzles in all 4 of these rounds. Its pretty confusing which was used where, since I’ve not organized it that well in my folders, so I’ll just post all the themed ones together (as mentioned in that post linked to above, the online qualifier had puzzles that I used simultaneously elsewhere and were more of a hurried solution).

The theme I was working on should be pretty obvious on seeing all the puzzles. It started with the easier Tapa, which I made completely by accident while writing a bunch of newspaper puzzles, and then I just tried a similar thing with the Corral and that happened quickly too. So, just decided to go along with it, discarded those two from the newspaper bunch and started off the Polish set with them. I couldn’t really try and retry the puzzles to get the exact appearances I wanted, and this is apparent from the 2 LITS and the Killer Sudoku among other ones. The LITS is of course something difficult that I set myself to do in a pretty short timespace, as both LITS were required hurriedly for the qualifiers, and to make it have duplicated regions throughout on the first try seems almost impossible, at least for me.

Anyway, here they are. As with the Zeka set, rules are either linked to by the puzzle names or just added here. These puzzles have varying difficulties, but I don’t think anything was exceptionally hard.

Enjoy!

P316 – ABC Box – Fill the grid with letters A, B and C. The clues outside give the sequence of letters in that row or column. If the clue is a number, that is the number of times a letter appears in that position of the sequence (Which letter is determined while solving). If the clue is a letter then that letter appears in that position of the sequence (The number of times it appears continuously is determined while solving). A “?” means that an unknown letter is appearing an unknown number of times in that position of the sequence.

P316

P317  : Akari.

P317

P318 : Corral.

P318

P319

P320, 321 : Fillomino.

P320

P321

P322 : Heyawacky.

P322

P323 : Killer Sudoku 8×8 – Follow regular sudoku rules. Additionally, the numbers at the top left of a cage gives the sum of numbers in that cage. Numbers cannot repeat in a cage.

P323

P324, 325 : LITS

P324

P325

P326 : Masyu

P326

P327 : Pentasight

P327

P328 : Pentopia

P328

P329, 330 : The Persistence of Memory

P329

P330

P331 : Regional Yajilin

P331

P332, 333 : Tapa

P332

P333

P334 : Tapa Skyscrapers

P334

P335 : Yajilin

P335

P336 : Yajisan Kazusan

P336

# Puzzle No. 280, 281 : Regional Yajilin, Antidiagonal Sums Sudoku

Daily league update :

On Saturday, Bram posted a No 10 Sudoku. Kwaka came up with an innovative variant called Mickey Mouse on Sunday. Fred posted a tricky Extra Regions Sudoku yesterday, and here is my contribution below. Oh and the combined Week 2 PDF has been released, and is publicly available here, with the usual target solve times for different levels of solvers.

Coming to the blog post now, I have had Sudokucup 9 hanging over my head through the weekend, and so the reason for the delay in posting. I thought I’d make it up by posting 2 puzzles again. My week  3 of the Daily League went really well and I’m leading that week for now, although its still open for solving and adding your time on the spreadsheet that can be found on our facebook group. The lead up being so good, I was hoping for a good showing in Sudokucup 9, and thankfully I had that, even if I did keep putting it off for not being in the best of health. I finished at 8th place.

The Regional Yajilin is a reject from one of the many other sets I’m working on. It might be tricky if you’re not familiar with looping techniques but should go along fine otherwise. The Antidiagonal Sums Sudoku isn’t too tricky.

For 280 : Follow Regional Yajilin rules. Some loop segments are given.

For 281 : Follow regular Sudoku rules. Additionally, each of the main diagonals must contain exactly 3 distinct digits. One digit is the sum of the other two.

Enjoy!

P280

P281

# Puzzle No. 156 : Regional Yajilin

Not a good day for me. And as has been the case with most of my regional Yajilins, I had to put a line in to fix the uniqueness issue, and also as usual, I’m uploading the puzzle anyway since I like it otherwise. I might even make this a trademark 😛

Rules for Regional Yajilin. As I said, I’ve taken a shortcut and given you 2 places where the loop passes.

Rated :  Medium.

Enjoy!

Puzzle No, 156

# Puzzle No. 144 : Regional Yajilin

Funny layout I know, but what do you expect after reading about the twin towers… Yes I know, thats utterly random.

Rules for Regional Yajilin. I’m too lazy to fix the uniqueness issue that came up, or start anew, so the little black lines are given segments of the loop.

Rated : Hard.

Enjoy!

Puzzle No. 144

# Puzzle No. 93 : Regional Yajilin

From the 14th to 18th I have my Preliminary exams in my college, which albeit I’m not gonna take that seriously, I do need a bit of time for. 😛 Then, from 23rd to 31st, I will be giving 3 exams to gain a certification from Oracle. After that, my university exams will be held through April. So, I guess you get the gist. Don’t expect much in the coming months.

Having said that, I’m quite happy with today’s and think I can be forgiven for the little anti-uniqueness measure I had to take because of the above mentioned time constraints and because I really wanted to put this one up for solving.

For the rules, I’ll just refer you to an older post of this puzzle type here. As I said, I’ve taken a shortcut and given you 2 places where the loop passes.

Rated : Hard, me thinks.

Enjoy!

Puzzle No. 93

# Puzzle No. 62-82 : My birthday puzzles!

Because, even though I’m gonna be stuck in college on my birthday, doesn’t mean all of you shouldn’t enjoy yourselves. The regular readers of this blog will know, I’ve been struggling to even put up a single puzzle on most days. So in preparing this, obviously most would be easy, and some of them may even fall under the category of “Evil Zingers”. However, I do think quite a few of them are fun, and the last one is probably one of my best. Heh, anyway, you decide.

This set features my first attempt at a Liar Loop, and a non-variant Slalom. 🙂

Birthday Puzzles

That should do for today’s puzzle post I suppose. Enjoy!

Update : Apparently the PDF is crashing for some people. The error is for some reason that it requires a Japanese Fonts plug in. For what its worth, I downloaded the same and its completely fine. But of course, you may want an alternative, so I’m uploading just the PNG formats of all puzzles in the rar file, with a txt file for the rules and descriptions. The solutions PDF is fine I suppose.

21.rar

Hope that fixes any issues. 🙂

# Puzzle No. 51 : Regional Yajilin

I think I agree with some comments on my previous post of this type, it can be a type on its own.  I’ve gone towards slightly irregular regions here and there this time to see how it works, and personally I was quite pleased with the result. As for another suggestion about decreasing the regions, I agree with that point and I promise I’ll work on that next time. 😛

Follow all those, except instead of the usual numbers with arrows clue type, there are now regions with numbers which tell you how many cells in the region are shaded.

Rated : Hard?

A tip, a basic pattern, and a solution here. Password : RY2.

Enjoy!

Puzzle No. 51

# Puzzle No. 44 : Regional Yajilin

Firstly, I’m the highest ranked Indian performer in the Tapa Variations Contest IX that just got over (refer to the Puzzle No. 41 post for details.) and I’m quite pleased with myself for it 😛 Congrats to motris(Thomas Snyder) for taking a big early lead this year.

You can view the scores here .

Secondly, for today’s puzzle, I was tempted to follow Heyawake rules too, but decided on just the Yajilin variation instead of a Hybrid as I felt it would get too crowded up, but if people feel differently I’ll definitely try it out later.

Now to the puzzle.

Follow the rules of Yajilin. Instead of the usual arrow-clue-type, the numbers in the top left of the region give how many shaded cells there are in that region.

Rated : Medium, but of course its something slightly new so I’m not sure.