Puzzle No. 478 : Christmas Loop

Just about got a crazy idea in time to execute it on Christmas day. Thanks to Chaotic Iak and Tiit Vunk for testing this one. The puzzle itself is pretty difficult. The rules are complex. So, Merry Christmas everyone! *evil laugh*

Oh and thanks to Tawan for hosting the wonderful contest Colour Restore, which I won, because I’m the KING of Rock-Paper-Scissors B-) Actually, that’s where the entire inspiration for this idea started, the colours, which is mainly why I wanted the colours to be able to help in the solve in some way. So thanks for that too.

Rules –

Part 1 – Cipher Fillomino – Using Fillomino rules, divide the grid into regions. The numbers are all replaced by colours. Same numbers are represented by the same colour, and different numbers by a different colour.

Part 2 – Regional Railroads – Draw a loop that passes through every cell of the grid and doesn’t overlap itself. It can cross only on cells with a + sign and has to cross on every cell with a + sign. Each region in the grid must have at least one continuous instance of the loop passing through all it’s cells.

Part 3 (Not necessary for the puzzle to be unique. You can skip ahead to the puzzle with the rules above without this helper) Colour Combinations – The 3 common ways that colours mix to form other colours ((Red, Blue, Purple)(Blue, Yellow, Green)(Red, Yellow, Orange)) will form 3 groups where the colour values can make the arithmetic equation A+B=C valid somehow. (e.g. Red +Purple = Blue)

Rated – Hard of course.

If you want an easier version than even the part 3 helper, here’s an image with the equations between colours directly given.

P478

P478

Puzzle No. 444-447 : Puzzles from the Visa Application office

In addition to my usual puzzle related activities, I have been managing Team India’s visa application submissions. This has been quite a tough process. As part of the process, I have to stand in queue outside the office for 4 and a half hours, and then sit inside for about an hour more. The puzzles below were part of 9 I wrote when sitting in the office. I was obviously exhausted, and this was more of a “oh, I found a pen and paper, lemme just have a little fun to pass the time” kind of activity. Also, with a pen, I couldn’t erase stuff which makes construction infinitely harder, at least for me. So out of the 9, only 2 ended up working when I reproduced them on the computer. 2 others had easy fixes. The other 5 will have to be discarded as I can’t see what I can do to make them work. This hopefully makes up for my inactivity on this as well as next Thursday. Other than the league post on Tuesday, my next post will be a week after this.

Of the 4 puzzles that made the cut, 3 are Tapa related. This is fitting, as the TVC and CTC are nearing their end. I feel fairly certain of a top 10 finish in CTC, and hopefully somewhere thereabouts in TVC too. Generally happy with how I’ve done this year. The 3 puzzles below have a nice mix of a Classic Tapa, a variant that appeared this year, and a variant from the past. The 4th puzzle is a Shakashaka, which is nothing special.

In other news, the “Around the world in 80 Puzzles” Instruction booklet is out! As announced on this blog before, one of the 4 sets is written by me. I’d like to thank Amit Sowani, for test solving each puzzle and providing some good inputs along the way. I thank Ravi Kumar too, for coming up with the name Indian Intrigue which I liked the most out of the possible names. It was a pleasure working with Zoltan Nemeth and the other Hungarian team members too.

Anyway, puzzles!

P444 : Tapa. Rules for Tapa.

Rated : Medium (could be hard).

P445 : Twopa. If both grids are considered together using the following rule, they will each have a unique solution. In each solution, every clue must behave at least a little bit differently. This means, in a multi-digit clue, some of the digits can have the same behavior, but not all.

Rated : Medium.

P446 : Tapa Trimino. Follow regular Tapa rules (above). Additionally, the wall should only be made up of “L” shaped triminoes without overlapping.

Rated : Hard.

P447 : Shakashaka. Rules for Shakashaka.

Rated : Easy. 

P444

P444

P445

P445

P446
P446

P447

P447

Puzzle No. 436, 437 : Fillomino, Tapa

As promised, here’s 2 puzzles to make up for missing out on Sunday. The Fillomino’s just something I made to explore the middle pattern. The Tapa is one of those that was meant for elsewhere, but the theme was pretty nice so I decided to move it here. Its got my favorite (symmetric clues have same sums) theme, while all symmetric clues are still different. Its also got a decent un-clued space in the middle.

P436 –

Rules for Fillomino.

Rated – Medium (easy side).

P437 –

Rules for Tapa.

Rated – Easy.

Enjoy!

P436

P436

P437

P437