## Solution 0 | Steps | Marbles left | Ways to solve | |--------------|---------------|--------------| | 16 | 16 | 5487 | ``` Step 0: ┌───────┐ │ ● ● ● │ ┌───┘ ● ● ● └───┐ │ ● ● ● ● ● ● ● │ │ ● ● ● ○ ● ● ● │ │ ● ● ● ● ● ● ● │ └───┐ ● ● ● ┌───┘ │ ● ● ● │ └───────┘ Step 1: ┌───────┐ │ ● ● ● │ ┌───┘ ● ● ● └───┐ │ ● ● ● ● ● ● ● │ │ ● ○ ○ ● ● ● ● │ │ ● ● ● ● ● ● ● │ └───┐ ● ● ● ┌───┘ │ ● ● ● │ └───────┘ Step 2: ┌───────┐ │ ● ● ● │ ┌───┘ ○ ● ● └───┐ │ ● ● ○ ● ● ● ● │ │ ● ○ ● ● ● ● ● │ │ ● ● ● ● ● ● ● │ └───┐ ● ● ● ┌───┘ │ ● ● ● │ └───────┘ Step 3: ┌───────┐ │ ● ● ● │ ┌───┘ ○ ● ● └───┐ │ ● ● ● ○ ○ ● ● │ │ ● ○ ● ● ● ● ● │ │ ● ● ● ● ● ● ● │ └───┐ ● ● ● ┌───┘ │ ● ● ● │ └───────┘ Step 4: ┌───────┐ │ ● ● ● │ ┌───┘ ○ ● ● └───┐ │ ● ● ● ○ ● ○ ○ │ │ ● ○ ● ● ● ● ● │ │ ● ● ● ● ● ● ● │ └───┐ ● ● ● ┌───┘ │ ● ● ● │ └───────┘ Step 5: ┌───────┐ │ ● ● ● │ ┌───┘ ○ ● ● └───┐ │ ● ● ● ○ ● ● ○ │ │ ● ○ ● ● ● ○ ● │ │ ● ● ● ● ● ○ ● │ └───┐ ● ● ● ┌───┘ │ ● ● ● │ └───────┘ Step 6: ┌───────┐ │ ● ● ● │ ┌───┘ ○ ● ● └───┐ │ ● ● ● ○ ○ ○ ● │ │ ● ○ ● ● ● ○ ● │ │ ● ● ● ● ● ○ ● │ └───┐ ● ● ● ┌───┘ │ ● ● ● │ └───────┘ Step 7: ┌───────┐ │ ● ● ● │ ┌───┘ ○ ● ● └───┐ │ ● ● ● ● ○ ○ ● │ │ ● ○ ● ○ ● ○ ● │ │ ● ● ● ○ ● ○ ● │ └───┐ ● ● ● ┌───┘ │ ● ● ● │ └───────┘ Step 8: ┌───────┐ │ ● ● ● │ ┌───┘ ● ○ ○ └───┐ │ ● ● ● ● ○ ○ ● │ │ ● ○ ● ○ ● ○ ● │ │ ● ● ● ○ ● ○ ● │ └───┐ ● ● ● ┌───┘ │ ● ● ● │ └───────┘ Step 9: ┌───────┐ │ ● ● ● │ ┌───┘ ● ○ ○ └───┐ │ ● ● ○ ○ ● ○ ● │ │ ● ○ ● ○ ● ○ ● │ │ ● ● ● ○ ● ○ ● │ └───┐ ● ● ● ┌───┘ │ ● ● ● │ └───────┘ Step 10: ┌───────┐ │ ● ● ● │ ┌───┘ ● ○ ○ └───┐ │ ○ ○ ● ○ ● ○ ● │ │ ● ○ ● ○ ● ○ ● │ │ ● ● ● ○ ● ○ ● │ └───┐ ● ● ● ┌───┘ │ ● ● ● │ └───────┘ Step 11: ┌───────┐ │ ● ● ● │ ┌───┘ ● ○ ○ └───┐ │ ○ ○ ● ○ ● ○ ● │ │ ● ○ ● ○ ● ○ ● │ │ ● ● ● ● ● ○ ● │ └───┐ ● ○ ● ┌───┘ │ ● ○ ● │ └───────┘ Step 12: ┌───────┐ │ ● ● ● │ ┌───┘ ● ○ ○ └───┐ │ ● ○ ● ○ ● ○ ● │ │ ○ ○ ● ○ ● ○ ● │ │ ○ ● ● ● ● ○ ● │ └───┐ ● ○ ● ┌───┘ │ ● ○ ● │ └───────┘ Step 13: ┌───────┐ │ ● ● ● │ ┌───┘ ● ○ ○ └───┐ │ ● ○ ● ○ ● ○ ● │ │ ○ ○ ● ○ ● ○ ● │ │ ● ○ ○ ● ● ○ ● │ └───┐ ● ○ ● ┌───┘ │ ● ○ ● │ └───────┘ Step 14: ┌───────┐ │ ● ● ● │ ┌───┘ ● ○ ○ └───┐ │ ● ○ ● ○ ● ○ ● │ │ ○ ○ ● ○ ● ○ ● │ │ ● ○ ● ○ ○ ○ ● │ └───┐ ● ○ ● ┌───┘ │ ● ○ ● │ └───────┘ Step 15: ┌───────┐ │ ● ● ● │ ┌───┘ ● ○ ○ └───┐ │ ● ○ ● ○ ● ○ ● │ │ ○ ○ ● ○ ● ○ ● │ │ ● ○ ● ○ ● ○ ● │ └───┐ ● ○ ○ ┌───┘ │ ● ○ ○ │ └───────┘ Step 16: ┌───────┐ │ ● ● ● │ ┌───┘ ● ○ ○ └───┐ │ ● ○ ● ○ ● ○ ● │ │ ○ ○ ● ○ ○ ○ ● │ │ ● ○ ● ○ ○ ○ ● │ └───┐ ● ○ ● ┌───┘ │ ● ○ ○ │ └───────┘ ```