The older gentlemen enjoyed socializing over a chess board, on clear warm days he did this at the local what?\nOptions:\n- retirement community\n- pool\n- cabinet\n- park\n- library
A step-by-step solution is:
park
A local park has chess board.

Old people go to the local park.

Local park is a public garden.

One socializes in a local park.

.

So, the final answer is park