Tuesday, May 30, 2017
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
Saturday, May 27, 2017
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.
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
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.
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.
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
Tuesday, May 16, 2017
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.
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
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.
Of all the lines beginning at any numbered cell, only one line can bend.
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