26.11.2009, 12:30
CAVERN, MOSAIC, TETRIS PARTITION (Points: 50+7)
Cavern: Draw a single, closed loop along the dotted lines. Blacken all cells outside the loop.
Some of the numbers are inside the loop. These numbers show how many fields of the cavern can be seen from that field in all directions, horizontal and vertical, until a black cell or the boundary of the grid is reached. The cell with the number itself is included in this number of seen fields. There is no 2x2-area inside the loop.
Mosaic: All the remaining numbers show how many of the cells, which are at a maximum distance of one cell (i.e.: the cell itself, those vertically and horizontally adjacent, and the 4 diagonally adjacent cells) are to be blackened. Cells with digits can also be blackened.
Tetris Partition: Draw lines along the dotted lines, so that all the white area is split in tetromino forms.
Hint: Outlined areas are always either completely black or completely white.
Solution Code: The top (1.) row and the bottom (12.) row. Write S for a black cell, W for a white cell, and ignore the numbers.
For the example the solution would be WWWWWSWWWW.
Cavern: Draw a single, closed loop along the dotted lines. Blacken all cells outside the loop.
Some of the numbers are inside the loop. These numbers show how many fields of the cavern can be seen from that field in all directions, horizontal and vertical, until a black cell or the boundary of the grid is reached. The cell with the number itself is included in this number of seen fields. There is no 2x2-area inside the loop.
Mosaic: All the remaining numbers show how many of the cells, which are at a maximum distance of one cell (i.e.: the cell itself, those vertically and horizontally adjacent, and the 4 diagonally adjacent cells) are to be blackened. Cells with digits can also be blackened.
Tetris Partition: Draw lines along the dotted lines, so that all the white area is split in tetromino forms.
Hint: Outlined areas are always either completely black or completely white.
Solution Code: The top (1.) row and the bottom (12.) row. Write S for a black cell, W for a white cell, and ignore the numbers.
For the example the solution would be WWWWWSWWWW.