# Puzzle No. 479 : Palindrome Sudoku [Daily League]

Remember that you can solve the puzzles from the League online on the Sudokucup Guest League page with a 24h delay.

This is the first of a series of Sudokus I’ll be posting which were originally part of a Czech Sudoku tournament held recently.

Rules – Follow regular Sudoku rules. The numbers formed by the digits on the gray lines are palindromes, that is to say, they can be read equally in both directions.

Rated – Medium.

Enjoy!

P479

# 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

# Puzzle No. 477 : Liar Masyu

It lies!

Follow regular Masyu rules. In each row and column exactly one clue is false. Once proved false, a clue  can behave as anything except what it’s supposed to be (including remaining loop-less).

Rated – Medium.

Enjoy!

P477

# Puzzle No. 476 : XV Sudoku [Daily League]

First, PDFs!

The League of Extraordinary Ladies and Gentleman_week49

The League of Extraordinary Ladies and Gentleman_week50

Remember that you can solve the puzzles from the League online on the Sudokucup Guest League page with a 24h delay.

Been absent for a week, due to a few health issues. I’ll be back to normal now hopefully (since me saying that seems to curse me into inactivity again so many times recently). The below Sudoku is probably trickier than the rating, but as with most XVs, it’ll probably zoom through once the starting bits are deduced.

Rules – Follow regular Sudoku rules. Additionally, two neighbouring cells containing digits adding up to 5 are always separated by a V. Two neighbouring cells containing digits adding up to 10 are always separated by an X.

Rated – Medium (+).

Enjoy!

P476

# Puzzle No. 475 : Untouch – AntiKnight Sudoku [Daily League]

First, PDF!

The League of Extraordinary Ladies and Gentleman_week48

Remember that you can solve the puzzles from the League online on the Sudokucup Guest League page with a 24h delay.

I’m gonna need a while to get used to the Thursday schedule. Totally forgot that this is my day now. This one’s quickly made, and so some will feel this is “half” the puzzle it could be. It’s still challenging though, and should still be fun I hope.

Rules – Follow regular Sudoku rules. Additionally, same numbers cannot touch diagonally and also can’t be a chess knight’s step away from each other.

Rated – Hard.

Enjoy!

P475

# Puzzle No. 472, 473 : Shakashaka, Fillomino

Heh. Will get back to Tuesday-Thursday-Sunday from the coming week. Also, my Puzzle posts will be Tuesday and Sunday now, and the Daily League post will be on Thursday. This is to accommodate Richard Stolk on Tuesdays.

Anyway,

Rules –

P473 – Rules for Fillomino.

Enjoy!

P472

P473

# Puzzle No. 471 : Weighted Frame Sudoku [Daily League]

First, PDF!

The League of Extraordinary Ladies and Gentleman_week47

Remember that you can solve the puzzles from the League online on the Sudokucup Guest League page with a 24h delay.

This puzzle’s really tough, I think. The Weighted rules do play in nicely for the break-in.

Rules – Follow regular Sudoku rules. Additionally, a clue outside gives the sum of the first 3 numbers in that direction. Also, the numbers in shaded cells will count for double their values for any sum they are part of.

Rated – Hard.

Enjoy!

P471

# Puzzle No. 469, 470 : Regional Tapa, Regional Snake

I took a week long break from puzzle construction, which was a little “forced”. Now I’m starting again from tomorrow,  and I want to start fresh, so discarding all my “reserve” puzzles and starting new on everything, as I like to do after a break.

The Regional Tapa isn’t that difficult but the Snake is.

Rules –

P469 – Rules of Tapa. Additionally, a clue also indicates the length of shaded cell groups in its region (in the exact configuration as the clue). Some regions may not have clues and have no restrictions. A “?” can stand for any number, but the number(s) needs to be constant for the clue cell as well as the region it is in.

P470 – Find a snake in the grid whose body consists of horizontal and vertical segments. The snake’s body never touches itself, not even diagonally. The head and tail of the snake are not given. Numbers in each of the regions surrounded by thick lines denote the number of cells occupied by the snake in that region.

Enjoy!

P469

P470