Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the 20-year peak with emanuel lasker, 2816 as the 15-year peak?

### Inputs:
table_name: table, columns: ['Rank', '1-year peak', '5-year peak', '10-year peak', '15-year peak', '20-year peak']

### Response:
SELECT 20-year peak FROM table WHERE 15-year peak = emanuel lasker, 2816