Observe, choose, check
In brief
The first jump into the center
The first jump into the center
In the initial English board layout, D4 is empty. The marble at D2 can jump over D3 and land at D4. D2 and D3 become empty; D4 becomes occupied.
What happens to the marble jumped over?
Show the answer
The jump D2–D4 removes the marble at D3. There are 31 marbles left after this first jump.