Puzzle 11: Nurikabe

Instructions 

Theme 2 of each

Puzzle 10: Sudoku

Instructions

Theme: Chain

Sudoku Instructions

Rules: The challenge is to fill in the numbers 1 to n in the grid, subject to the following rules:

1. There is are the numbers 1 to n in each row and column.
2. Each area of size n also has the numbers 1 to n.

Puzzle 9: LITS

 

Instructions 

Theme: Centre Square

LITS Instructions

Rules: The challenge is to shade four connected cells in each region, subject to the following rules:

1. No two of the same tetrominos, including rotations / reflections are allowed to touch.
2. All shaded cells must connect upon completion.
3. No 2x2 area of shaded cells is allowed.

Puzzle 8: Shakashaka

Instructions

Theme: Skewed 2s

Shakashaka Instructions

Rules: The challenge is to create a grid of rectangles, subject to the following rules:

1. No two rectangles can share an edge.
2. Cells can only be half-painted along the main diagonal, or not painted at all.
3. Numbers in some cells denote the number of edges it shares with the shaded triangles.

Puzzle 7: Fillomino

Instructions

Theme: 1 to 6

Fillomino Instructions

Rules: The challenge is to add numbers to all cells, subject to the following rules:

1. All numbers on the grid must be part of an polyomino of the same order.
2. No two polyominoes of  the same order can touch horizontally or vertically.
3. Givens may or may not be part of the same polyomino, conversely not all final polyominoes may start with a given.

Puzzle 6: Tapa

Instructions

Theme: Adding one

Tapa Instructions

Rules: The challenge is to shade some cells, subject to the following rules:

1. All shaded cells must eventually connect, but must not form 2x2 areas.
2. Numbers on some cells indicate the number of consecutive shaded cells around that cell, if there is more than one number then there must be at least one unshaded cell between the shaded regions, "?" is wild and can stand for any number between 1 and 8.
3. Cells with numbers can never be shaded.
   
   
   
   

Puzzle 5: Battleships

Instructions

Theme: Lucky Hit

Battleships Instructions

Rules: The challenge is to add ships to the grid, subject to the following rules:

1. All given ships on the in the key must be included in the grid with no others.
2. Numbers on some rows and columns indicate the numbers of cells filled by ships.
3. No ship may touch another, even diagonally.
   
   
    

Puzzle 4: Heyawake

Instructions

Theme: Weave

Heyawake Instructions

Rules: The challenge is to shade some cells on the grid, subject to the following rules:

1. Shaded cells must never touch horizontally or vertically
2. Unshaded cells must form one, connected area.
3. Numbers dictate how many shaded cells are in a room, also a straight line of unshaded cells can only connect two rooms i.e. any such line of unshaded cells which connects three or more rooms is forbidden.
   
   
    

Puzzle 3: Akari

Instructions

Theme: Only 1

Akari Instructions

Rules: The challenge is to light up all white cells, subject to the following rules:

1. Each lit cell illuminates all white cells in a horizontal and vertical direction until the beam hits a black cell or a wall.
2. Lights cannot shine on each other.
3. Numbers dictate how many cells horizontally or vertically adjacent to the cell have lights.

Puzzle 2: Masyu

Instructions

Theme: Boxes

Masyu Instructions

Rules: The challenge is to draw a loop around the grid, subject to the following rules:

1. White circles must be travelled straight through, but the loop must turn in the previous and/or next cell in its path.
2. Black circles must be turned upon, but the loop must travel straight through the next and previous cells in its path.
   
   
    

Puzzle 1: Nurikabe

Instructions 

Theme: High 5

Nurikabe Instructions

Rules: The objective is to divide the grid into shaded and unshaded cells, subject to the following rules:

1. Each numbered cell is an island cell, the number in it is the number of cells in that island.
2. Each island contains exactly one numbered cell.
3. There must be only one stream, which is not allowed to contain "pools", i.e. 2x2 areas of shaded cells.