November 27, 2015

Puzzle 088 - Fractional Skyscrapers

Fractional Skyscrapers was invented by Robert Vollmert.

Enter a digit in every area divided by horizontal/vertical/diagonal lines, so that every row/column contains each digit from 1 to N exactly once, where N is the number of digits to be filled in that row/column. If a cell is divided bu a diagonal, value of the fraction is regarded as height of the skyscrapers in that cell. Clues outside the grid indicate the number of skyscrapers that can be seen from the corresponding direction. A skyscraper block visibility of other skyscrapers with lower or equal height.   (quoted from Toketa.vol 3)

June 11, 2015

Puzzle 085 - Coded Skyscrapers

Rules for Skyscrapers

Some numbers are replaced with letters.
The same letters are the same digits and different letters are different digits.

June 2, 2015

Puzzle 084 - Japanese Sums with Zeroes

Place a digit from 0 to 6 into some cells so that no digit appears more than once in each row or column. Cells may remain empty. Numbers outside the grid indicate all sums of continuous groups of digits (including “sums” of a single digit) along that row or column. These groups are separated by empty cells (a cell with 0 is not considered empty). These sums are given in the same order as their corresponding groups of digits.

May 12, 2015

Puzzle 083 - Tousa

Tousa was invented by Naoki Inaba.

Rules for Tousa
Write a number between 1 and 9 in exactly three cells of each row and column of the diagram. The numbers in a row or column must form an ascending arithmetic sequence from left to right resp. top to bottom (i.e. the difference between two consecutive numbers must be constant; e.g. 1-2-3 or 2-5-8 or 3-5-7).

May 2, 2015

Puzzle 082 - Wolves and Sheep Fences

Draw a single, non-intersecting loop that only consists of horizontal and vertical segments between the dots. 
Numbers inside a cell indicate how many of the edges of that cell are part of the loop.
All sheep must be inside the loop.
All wolves must be outside the loop.

April 28, 2015

Puzzle 081 - Thermo-Skyscrapers

Apply standard Skyscrapers rules.
Also, the digits in each thermometer-shaped region must be in strictly increasing order from round bulb to flat end.

April 8, 2015

Puzzle 080 - Neighbors

Place a digit between 1 and 3 in every cell, such that each digit appears exactly three times in each row and colmun.
A cell is shaded if and only if the digit that it contains is different from all orthogonally adjacent digits.

February 8, 2015

Puzzle 079 - Lakes

Shade some cells so that the grid is divided into regions of white cells.
Each white area contains exactly one given number.
The number indicates how many cells belong to the white area.

February 5, 2015

Puzzle 078 - Slovak Sums

Place digits from 1 to 4 in some blank cells so that each digit appears exactly once in each row and column.  Clue numbers indicate the sum of orthogonally adjacent digits. The number of circles under a clue number indicates the number of cells that should have a digit placed in them.

January 8, 2015

Puzzle 074 - Curve Data

Make some figures by drawing lines so that each figure goes through just one clue.
All the cells will be visited by lines.
Each clue shows how the lines of the figure upon it turns or connects without any rotation or reflection.
(The clues do NOT imply lengths of any part of the line)
Different figures do not share same cell.

January 1, 2015

Puzzle 072 - Battleships

Rules for battleships

Puzzle 071 - CrossMath

Write numbers from 1 to 16 in all empty cells so that all equations are true.
Each number will be used exactly once.
Calculations must be done strictly from left to right and from top to bottom.