ROUND 68

WPF PUZZLE GP 2018COMPETITION BOOKLET

Host Country: SlovakiaMatej Uher

Special Notes: None.

1-2. Loop (Dutch) (5, 8 points)

Draw a single loop that passes orthogonally through centers of cells. The loop must go through all cells. The loop may not intersect itself or enter the same cell more than once. The loop must go straight through the cells with white circles. The loop must make a turn in all the cells with black circles.

Answer: For each designated row, enter the letter for each cell, from left to right. The letter for a cell is ‘I’ if the path goes straight through the cell and ‘L’ if the path turns in the cell.

Example Answer: ILLLLI,ILIILI

5a

5b

1a

1b

2a

2b

8ROUND 6WPF PUZZLE GP

3-4. Loop (Dutch) (22, 28 points)

5a

5b

Answer: For each designated row, enter the letter for each cell, from left to right. The letter for a cell is ‘I’ if the path goes straight through the cell and ‘L’ if the path turns in the cell.

Example Answer: ILLLLI,ILIILI

3a

3b

4a

4b

8ROUND 6WPF PUZZLE GP

5a

5b

Answer: For each designated row, enter the letter for each cell, from left to right. The letter for a cell is ‘I’ if the path goes straight through the cell and ‘L’ if the path turns in the cell.

Example Answer: ILLLLI,ILIILI

5. Loop (Dutch) (32 points)

6. Tetrominous (7 points)

Divide the grid along the dotted lines into tetrominoes such that every cell in the grid is part of exactly one tetromino. Tetrominoes of the same shape (rotations and reflections of a tetromino count as the same shape) cannot touch each other along an edge (but they may touch diagonally). Some letters are given in the grid. Each letter must be part of a tetromino with that letter’s shape. It is permissible for a tetromino to contain more than one letter. (It is possible for some tetromino shapes to never appear in the grid, or more than once.)

Answer: For each designated row, enter the letter for the tetromino that each cell belongs to, from left to right.

Example Answer: ISSL,ILLL

T

IL

O

S

L I

5a

5b

5a

5b

S I T T S I T T I L L O T T L L

6a

6b

8ROUND 6WPF PUZZLE GP

7-8. Tetrominous (22, 24 points)

L I

5a

5b

Answer: For each designated row, enter the letter for the tetromino that each cell belongs to, from left to right.

Example Answer: ISSL,ILLL

I L O I O T L O T O S I

7a

7b

T S S L S T I S T T

8a

8b

T

IL

O

S

8ROUND 6WPF PUZZLE GP

9-10. Tetrominous (26, 28 points)

L I

5a

5b

Answer: For each designated row, enter the letter for the tetromino that each cell belongs to, from left to right.

Example Answer: ISSL,ILLL

T

IL

O

S

S L L O T L T S S L

9a

9b

L T I S O I T T S L S I T O

10a

10b

8ROUND 6WPF PUZZLE GP

11-12. Slovak Sums (13, 14 points)

Place a digit from 1 to 4 (1 to 3 in the example) into some cells so that each digit appears exactly once in each row and column. Cells may remain empty. A cell cannot contain more than one digit. Some clues are given in the grid; digits should not be placed in cells with clues. Each clue describes the contents of the cells next to that clue (horizontally or vertically, but not diagonal). The number in the clue indicates the sum of the digits next to the clue. If there are circles shown beneath the number, the number of circles indicates the number of orthogonally-neighboring cells that should have a digit placed in them; otherwise there could be any number of such cells.

Answer: For each designated row, enter its contents, using ‘X’ for an empty or clued cell.

Example Answer: XX123,X3X12

1 6

8 2

1 2 3 1 2 3 2 1 3 3 1 2 3 2 1

11a

11b

7 5 9 6

9 12 8 7

7 11 9 6

3 6 11 4

12a

12b

1 3 4 9 9 4 10 6 8 4 9 5 4 5 1 8

8ROUND 6WPF PUZZLE GP

13-14. Slovak Sums (21, 43 points)

1 6

8 2

1 2 3 1 2 3 2 1 3 3 1 2 3 2 1

Answer: For each designated row, enter its contents, using ‘X’ for an empty or clued cell.

Example Answer: XX123,X3X12 13a

13b

7 4 9 5 7 2 4 2 6 8 4 13

14a

14b

6 6 7 6 3 11 12 7 4 6

8ROUND 6WPF PUZZLE GP

15. Slovak Sums (53 points)

16. Infection (12 points)

1 6

8 2

1 2 3 1 2 3 2 1 3 3 1 2 3 2 1

Answer: For each designated row, enter its contents, using ‘X’ for an empty or clued cell.

Example Answer: XX123,X3X12

15a

15b

8 6 5 7 1 6 4 4 2 9 5 4

Fill some cells with a number from 1 to 4. All numbered cells must be orthogonally connected. Orthogonally adjacent cells cannot contain the same number. Each number must indicate the number of orthogonally adjacent numbered cells. Some numbers are given to you.

Answer: For each designated row, enter its contents, from left to right. Use ‘X’ for an empty cell.

Example Answer: 1XXXX,X2X23

1 2 3 2 3 2 2 2 3 1 4 1 2 1 1

2 3

4 1 1

5a

5b

2 3 4 3 4 3 3 4 4 1 3 3 1 2 4 3 3 4 3 2 4 2

16a

16b

8ROUND 6WPF PUZZLE GP

17-18. Infection (15, 35 points)

1 2 3 2 3 2 2 2 3 1 4 1 2 1 1

2 3

4 1 1

5a

5b

Answer: For each designated row, enter its contents, from left to right. Use ‘X’ for an empty cell.

Example Answer: 1XXXX,X2X23 1 2 2 3 2 1 1 3 1 2 1 1 1 2 1 3 4 3

17a

17b

2 4 3 2 2 2 3 2 1 3 1

18a

18b

8ROUND 6WPF PUZZLE GP

19-20. Infection (49, 64 points)

1 2 3 2 3 2 2 2 3 1 4 1 2 1 1

2 3

4 1 1

5a

5b

Answer: For each designated row, enter its contents, from left to right. Use ‘X’ for an empty cell.

Example Answer: 1XXXX,X2X23

2 3 2 1 2 3 3 3 2 3 3 2 3 1

19a

19b

2 2 1 2 2 2 2 2 2 2 2

20a

20b

8ROUND 6WPF PUZZLE GP

Draw lines (“walls”) along the edges of cells. There must be an orthogonal path between any two cells that does not go through any walls (that is, the walls must not divide the grid into separate regions). Two cells can “see” each other if they are in the same row or column without any walls between them. Each number indicates the total number of cells that can be seen from the numbered cell, including the cell itself.

Answer: For each designated row, enter the number of walls along an edge of that cell, from left to right. Assume that the outside border of the grid is all walls.

Example Answer: 33102,12132

6 9 6 2 5 5 4 5 6 2 7 5 8 3

8

8

21-22. Walls (21, 34 points)

3 4 2 3 3 2 3 2 2 4 3 6 7 6 6 6 7 4 3 3 3 4 4 4 6 4 3 4 4 4 4 2 6 3 3 2 3 4 4 4 7 2 6 5 5 5 6 2 6 3 3 5 5 5 6 6 7 3 6 5 5 5 6 2

21a

21b

4 3 3 3 2 3 2 3 4 5 5 4 2 4 4 4 3 4 6 5 4 3 4 5 4 7 7 7 3 5 4 3 2 6 5 3 2 5 2 2 3 4 2 2

22a

22b

8ROUND 6WPF PUZZLE GP

23-24. Walls (37, 48 points)

6 9 6 2 5 5 4 5 6 2 7 5 8 3

8

8

Answer: For each designated row, enter the number of walls along an edge of that cell, from left to right. Assume that the outside border of the grid is all walls.

Example Answer: 33102,12132

3 4 2 5 3 5 4 4 6 7 6 5 3 6 7 5 5 3 5 6 5 4 5 5 5 4 5 3 2 4 6 6 5 3 5 5 3 6 6 4 5 5 7 4 6 3 3 6

23a

23b

6 5 4 4 5 4 6 5 4 7 4 6 4 3 7 4 5 6 3 4 6 5 6 4 3 5 7 4 6 5 6 8 9 5 6 7 4 7 8 5 4 5 3 4 8 5 3 6

24a

24b

8ROUND 6WPF PUZZLE GP

25. Walls (51 points) 6 9 6 2 5 5 4 5 6 2 7 5 8 3

8

8

Answer: For each designated row, enter the number of walls along an edge of that cell, from left to right. Assume that the outside border of the grid is all walls.

Example Answer: 33102,12132

6 4 6 3 6 6 5 6 4 4 7 7 7 8 9 3 5 5 6 4 4 6 7 5 3 8 8 8 7 8 6 5 4 5 7 7 6 6 3 5 5 4 5 6 4 7 5 5

25a

25b