Source google image: https://image.slidesharecdn.com/3dcyclecircularroundjigsawmazepiecepuzzle5piecespowerpointpptslides-120602171346-phpapp02/95/3d-cycle-circular-round-jigsaw-maze-piece-puzzle-5-pieces-powerpoint-ppt-slides-1-728.jpg?cb=1338657264
5 piece puzzle
Source google image: https://image.slidesharecdn.com/3dcyclecircularroundjigsawmazepiecepuzzle5piecespowerpointpptslides-120602171346-phpapp02/95/3d-cycle-circular-round-jigsaw-maze-piece-puzzle-5-pieces-powerpoint-ppt-slides-1-728.jpg?cb=1338657264