Tuesday, May 30, 2017

Puzzle 342: FillDomino

Rules: In addition to regular fillomino rules, each of the given dominos must be found in the completed grid.

Edit: The original version had multiple solutions. 

Monday, May 29, 2017

Puzzle 341: Interlaced Pentomino Scrabble

Rules: Place nine different pentominoes without overlapping. Then make a crossword using all the given words exactly once. Words can be read horizontally or vertically. There cannot be any word of 2 or more letters not in the list. Given letters either represent the pentomino using that cell, or belong to the crossword, or both. Every pentomino must overlap with at least one cell containing the letter that it represents.


Sunday, May 28, 2017

Puzzle 340: Magnets

Rules: Place some magnets horizontally or vertically. Each magnet has one negative and one positive pole. Poles with same polarity cannot be horizontally or vertically adjacent. Numbers given outside equal the number of positive and negative poles. 





Saturday, May 27, 2017

Puzzle 339: Shaka--Shaka

Rules: In addition to regular Shakashaka rules, a diagonally aligned rectangle cannot be adjacent to a horizontal or vertical rectangle of the same area.


Thursday, May 25, 2017

Puzzle 338: Directional Arukone

This is a new Arukone variation.

Rules: Connect each pair of identical numbers with lines that pass through centers of orthogonally
adjacent cells. The lines cannot overlap or intersect, and the lines must together use all the
cells. Each line starts in the same direction at both ends. This direction cannot be the same for
any two lines.



Tuesday, May 23, 2017

Puzzle 337: Decoupled Masyu

Rules : In addition to regular masyu, no two orthogonally adjacent circles can be visited in immediate succession.


Monday, May 22, 2017

Puzzle 336: Skyscrapers and the Neighbours

This is a new skyscrapers variation.

Rules: In addition to regular skyscraper rules, for every pair of orthogonally adjacent skyscrapers, if both are visible and the arithmetic difference between them is equal to 1, then both are counted twice. No skyscraper is counted more than two times in the same direction, even if it pairs up with more than one consecutive number along that direction.








Saturday, May 20, 2017

Puzzle 335: Borderless Magnets

This is a new variation.
 Rules: Place some magnets horizontally or vertically. Only  a  few borders may be given. Each magnet has one negative and one positive poles. Poles with same polarity cannot be horizontally or vertically adjacent. Numbers given outside equal the number of positive and negative poles. Some magnet halves are already given. Reveal all the magnets with their borders.


Thursday, May 18, 2017

Puzzle 334: Blockchain Kakuro

This is a new kakuro variation.
Rules: In addition to standard kakuro, records cannot repeat.


Tuesday, May 16, 2017

Puzzle 333: Inverse Kakuro

This is new kakuro variation.

Rules: Enter a digit from 1 to 9 into each white cell such that at least one digit repeats within any horizontal or vertical row of two or more uninterrupted white cells. Numbers  in black cells refer to the sums of digits in across and down rows.


Thursday, May 11, 2017

Puzzle 332: Quantum Entanglement

Rules: Every outlined room is an atom. Place two electrons in each row and column. Electrons are represented by numbers which describe the state/spin of the electron. Half of the electrons must have an initial state of 1 and the remaining electrons have an initial state of 2. Every atom contains not more than two electrons, and it is possible that an atom does not contain any electron. When two electrons reside in the same atom, they interact and inevitably reach a state of 1, regardless of their initial states. No interaction happens in singleton atoms. Numbers in outer row on top and right indicate the sums of states of electrons after entanglement. Inner row of clues indicate sums of the initial states. If two electrons are orthogonally adjacent, their initial states cannot be equal.




Wednesday, May 10, 2017

Puzzle 331: Creepy Penta

This is another new style of Pentomino placement puzzle.

Rules: Place the full set of twelve pentominoes as shaded cells, with rotations and reflections allowed. Pentominoes cannot touch each other, not even diagonally. Each given number must be part of a different pentomino. Given number indicates that there is at least one direction where that many uninterrupted shaded cells( excluding the clue cell) belong to the pentomino that uses the clue cell, and there is no direction where a longer block of shaded cells belonging to that pentomino exists. To put it in a diffferent way, if you move in any direction from the given number, you can cross only the given number of shaded cells before reaching a white cell. Black cells cannot be used by the Pentominoes.





Tuesday, May 9, 2017

Puzzle 330: Between Loop

Rules: Draw a closed loop moving  horizontally  or vertically through  the centers of all cells. The loop cannot cross or retrace itself. If two circles are two cells away (they share a common adjacent cell), the loop must visit at least one circle between those two circles.

Edit:  Uniqueness issue fixed.


Saturday, May 6, 2017

Puzzle 329: Tapa

This is a tapa.


Puzzle 328: Royal Skyscrapers

Rules: In addition to regular skyscraper rules, if a cell contains a chess knight ( for example), it  means that no two occurrences of the number in that cell can be knight's move apart.


Friday, May 5, 2017

Puzzle 327: Virtual Skyscrapers


Rules: In addition to regular skyscraper rules, mark exactly one skyscraper in every row and column. If the marked skyscraper is visible to the observer outside, he can also view a reflection of one of the smaller skyscrapers ahead of it. He counts that image as an additional skyscraper and adds to the total(Only one will be added to the clue). If the marked number is the first number in that direction(just beside the observer), there is no virtual image, and hence nothing will be added to the clue. Which numbers have to be marked, has to be determined as part of the solving process.



Monday, May 1, 2017

Puzzle 326: Bending Four Winds

Rules: Draw lines starting in the centers of numbered cells. Every empty cell in the grid must be used by exactly one line. Lines can only be horizontal or vertical, and cannot occupy other numbered cells. Lines can bend, but only once. Numbers indicate the sum of length of all lines that begin in that cell. Shaded cells indicate that a line bends in that cell.
Of all the lines beginning at any numbered cell, only one line can bend.