Camelot TC 4

Puzzle A is a puzzle with letters and digits. The goal is to fill in the grid with symbols according to the following rules:
1. Each cell contains one letter and one digit.
2. Every row and every column contains each letter and each digit exactly once.
3. No two cells contain the same pair of symbols.


Puzzle B consists of a grid divided on regions. The aim is to blacken some regions according to the following rules:

1. Cells with letters, circles or triangles are always white.
2. White cells form a path from a cell with S ("start") to a cell with G ("goal"); a path must be exactly one cell wide.
3. A path from S to G includes all cells with circles and no cells with triangles.
4. No 2 x 2 cell area within the grid can have the same color.
5. All white cells must form an orthogonally continuous area.
6. White cells must not form a loop.


Puzzle C is played on a grid filled with Latin letters. The goal is to divide the grid into regions. Each region has all the letters of the given range. The region contains each letter exactly once. Each letter must be part of exactly one region.


Puzzle D consists of a rectangular or square grid. The task is to draw a single continuous loop that passes through all cells. The loop must use all given sections and may cross itself in any cell.


Puzzle E is played on a rectangular or square grid with black and white cells. All black cells contain numbers. The aim is to draw a horizontal or a vertical line in each white cell. Each number represents the total number of white cells occupied by the lines from that number. Lines cannot enter other numbered black cells or intersect with other lines.


Puzzle F is a logic puzzle published by Nikoli. A rectangular or square grid is divided into regions. Each region contains circles in some cells. The aim is to blacken some circles according to the following rules:

1. Each region contains one black circle.
2. Three consecutive circles of the same color never appear in any row, column or diagonal.
3. There must be a circle of other color or an empty cell between them.


Puzzle G is played on a square grid. The aim is to blacken some cells of a grid according to the following rules:

1. Each row and each column contains two black cells.
2. No black cells touch each other, not even diagonally.
3. Numbers outside the grid show the number of white cells between black cells in corresponding row or column.