Puzzle 301: Yajilin

Instructions

Theme: Skewed squares 

Yajilin Instructions

Rules: The challenge is to draw a single, closed loop and shade some cells, subject to the following rules:

1. Numbered cells indicate the amount of shaded cells in the corresponding direction of the arrow.
2. Shaded cells cannot touch horizontally or vertically but may touch diagonally. 
3. All remaining white cells should be traversed by a single closed loop, with no branches and which doesn't cross itself.
4. Empty grey cells are not considered part of the loop, and can be touched by shaded cells.
   
   
   

Puzzle 300: Quattro Stagioni

General Rule: Shade some cells to form a single contiguous shape. The shape doesn't form any 2x2 squares anywhere, even between boundaries. The coloured squares represent windows, the pattern of shaded and unshaded cells in the solid window must be the inverse of the pattern of shaded and unshaded cells in the dashed window of the same colour. The orientation of which stays the same.

Top Left: Nurikabe Pentominoes

1. Each lettered cell is an island cell, the letter in it indicates the pentomino it is part of.
2. Each island contains exactly one lettered cell. All unshaded cells in the top-left are part of a pentomino.
3. Pentominos must be contained completely within the top-left area and don't connect to unshaded cells in other areas.

Top Right: Nanro Signpost

1. Each area must contain at least one shaded cell.
2. Numbers in some cells count the shaded cells in that area, however that cell may not be shaded upon completion.
3. Where two shaded cells connect across a boundary between areas, the number of shaded cells in those areas must be different.

Bottom Left: Large-Squares Tapa

1. 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 from 1 up to the number of surrounding cells.
2. Where clues are in large areas, they relate to all cells surrounding that area.
3. Cells with numbers can never be shaded.

Bottom Right: Easy as LITS

1. No two of the same tetrominos, including rotations / reflections are allowed to touch.
2. Letters outside the grid indicate the first tetromino encountered in the corresponding direction.

Puzzle 299: Star Battle

Instructions for Star Battle

Theme: Pentomino Rooms

Puzzle 298: Windows Tapa

Instructions

Theme: Overlap

Windows 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.
4. The pattern of shaded and unshaded cells in the solid box must be the inverse of the pattern of shaded and unshaded cells in the dashed box of the same colour. The orientation of which stays the same.
5. 
   
   
   

Puzzle 297: Four Directions Yajilin

Instructions

Theme: Sentries

Four Directions Yajilin Insturctions

Rules: The challenge is to draw a single, closed loop and shade some cells, subject to the following rules:

1. Numbered cells indicate the amount of shaded cells in the corresponding row and column.
2. Shaded cells cannot touch horizontally or vertically but may touch diagonally.
3. All remaining white cells should be traversed by a single closed loop, with no branches and which doesn't cross itself.
   
   
   

Puzzle 296: Chocona

Instructions 

Theme: Powers of 2

Chocona Instructions

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

1. Numbers indicate how many shaded cells are in a region.
2. Shaded cells must form rectangles, independently to the region borders.
3. Shaded rectangles must not touch horizontally or vertically.

Puzzle 295: Nurikabe Pentominoes

Instructions 

Theme: Full Set

Nurikabe Pentominoes Instuctions

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

1. Each lettered cell is an island cell, the letter in it indicates the pentomino it is part of (tetrominoes used in the example below).
2. Each island contains exactly one lettered cell.
3. There must be only one stream, which is not allowed to contain "pools", i.e. 2x2 areas of shaded cells.

Puzzle 294: Easy as LITS

Instructions

Theme: Overlay of boxes

Puzzle 293: Kurotto

Instructions

Theme: Counting up

Kurotto Instuctions

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

1. Numbers represent the sum of groups of shaded cells that are horizontally and vertically connected to that cell.
2. Cells with circles can not be shaded.

Puzzle 292: Nanro Signpost

Instructions

Theme: Wiggle rooms

Nanro Signpost Instructions

The objective is insert numbers, subject to the following rules:

1. Each area must contain at least one numbered cell.
2. Numbers in some cells count the total of numbered cells in that area, however that cell may not contain a number upon completion.
3. Where two numbers connect across a boundary between areas, those numbers must be different.
4. Numbers must form one connected area with no 2x2 areas of numbered cells.

Puzzle 291: Yajisan-Kazusan

Instructions

Theme: Pointing In

Yajisan-Kazusan Instructions

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

1. All unshaded cells must eventually connect and shaded cells may not share an edge.
2. Clues on some cells indicate the number of  shaded cells in the direction of the arrow.
3. Cells with clues may be shaded, and if they are, then the clue may be true or false.
   
   
   
   

Puzzle 290: Binary Heyawake

Instructions

Theme: Square Tiling

Puzzle 289: Windows Nurikabe

Instructions

Theme: Pinwheel

Windows Nurikabe Insructions

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.
4. The pattern of shaded and unshaded cells in the solid box must be the inverse of the pattern of shaded and unshaded cells in the dashed box of the same colour. The orientation of which stays the same.

Hybrid 6: Starship Battle

Instructions

Theme: 2 Down

Puzzle 288: Large Squares Tapa

Instructions

Theme: Repetition 

Large Squares 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 from 1 up to the number of surrounding cells.
3. Where clues are in large areas, they relate to all cells surrounding that area.
4. Cells with numbers can never be shaded.
   
   
   
   
   
   

Puzzle 287: Fillomino

Instructions

Theme: Setting it up

Puzzle 286: Signpost LITS

Instructions

Theme: Rank and File

Signpost 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.
4. Some cells include a letter. If the corresponding cell is shaded then the tetromino must match the letter.  

Puzzle 285: Tapa

Instructions

Theme: Open Spaces

Puzzle 284: Binary Heyawake

Instructions

Theme: Large Areas

Puzzle 283: Regional Masyu

Instructions

Theme: One of each in every box!

Regional 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.
3. The loop must make the same number of turns in each region it enters.
   
   
   
   
   
    

Hybrid 5: Starship Battle

Instructions

Theme: Concentric Circles

Starship Battle 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.
4. Exactly one ship region is present in each region.
   

Puzzle 282: Inversed LITS

Instructions

Theme: Centre Square

Inversed LITS Instructions

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

1. Each area contains 4 orthogonally connected unshaded cells.
2. No two of the same tetrominos, including rotations / reflections are allowed to touch vertically or horizontally.
3. All shaded cells must connect upon completion.
4. No 2x2 area of shaded cells is allowed.