Eight kinds of logic puzzle

Fill each space with a circle or a diamond.

• Balance the two symbols in every row and column.
• Never put three matching symbols in a row.
• Bars and crosses show whether neighbours match or differ.

Divide the board into rectangles with no gaps or overlaps.

• Every rectangle contains exactly one clue.
• A clue gives its area, shape or both. A round shape clue allows any rectangle.

Draw one winding path through every space exactly once.

• Start at 1 and visit the numbered checkpoints in order.
• Move horizontally or vertically, without crossing walls.

Place lights so that every open space is bright.

• A light shines along its row and column until a wall stops it.
• Lights cannot shine on one another.
• Numbered walls tell you how many lights touch them.

Give each row, column, and coloured region exactly one flower.

• Flowers cannot touch, even at the corners.
• Use the regions together with the rows and columns to work out each flower's place.

Join matching pairs with continuous ribbons and fill the whole board.

• Move up, down, left, or right.
• Ribbons cannot cross or overlap.
• Every space must be covered.

Connect numbered islands in one network.

• Match each island’s number with its bridge count.
• Use one or two straight bridges between neighbouring islands.
• Bridges cannot cross or pass through another island.

Fill a 6×6 board with the numbers 1–6.

• Each row and column contains every number exactly once.
• Each box, three cells wide and two tall, does too.
• Starting numbers stay fixed. Use the number pad to fill empty cells.