Find the hidden balls in the box by bouncing laser beams off them.

Connect all the islands with a network of bridges.

Pick up all the blue squares by rolling the cube over them.

Tile the rectangle with a full set of dominoes.

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Slide the tiles around to arrange them into order.

Mark every square with the area of its containing region.

Flip groups of squares to light them all up at once.

Divide the grid into rotationally symmetric regions each centred on a dot.

Guess the hidden combination of colours.

Collect all the gems without running into any of the mines.

Complete the latin square in accordance with the arithmetic clues.

Place bulbs to light up all the squares.

Draw a single closed loop in accordance with the clues.

Place magnets to satisfy the clues and avoid like poles touching.

Colour the map so that adjacent regions are never the same colour.

Find all the mines without treading on any of them.

Rotate each tile to reassemble the network.

Slide a row at a time to reassemble the network.

Fill in the pattern in the grid, given only the lengths of runs of black squares.

Jump pegs over each other to remove all but one.

Divide the grid into rectangles with areas equal to the numbers.

Clear the grid by removing touching groups of the same colour squares.

Connect the squares into a path following the arrows.

Black out the right set of duplicate numbers.

Slide a row at a time to arrange the tiles into order.

Draw a maze of slanting lines that matches the clues.

Fill in the grid so that each row, column and square block contains one of every digit.

Place a tent next to each tree.

Complete the latin square of towers in accordance with the clues.

Rotate the tiles around themselves to arrange them into order.

Complete the latin square in accordance with the > signs.

Reposition the points so that the lines do not cross.