CREATE TABLE "chessmetrics" (
  "rank" real,
  "1_year_peak" text,
  "5_year_peak" text,
  "10_year_peak" text,
  "15_year_peak" text,
  "20_year_peak" text
);

Question: What is the lowest rank of 5-year peak bobby fischer, 2841?
SQL: SELECT MIN("rank") FROM "chessmetrics" WHERE "5_year_peak"='bobby fischer, 2841';

Question: What is the 1-year peak with anatoly karpov, 2821 as the 10-year peak?
SQL: SELECT "1_year_peak" FROM "chessmetrics" WHERE "10_year_peak"='anatoly karpov, 2821';

Question: What is the 20-year peak with emanuel lasker, 2816 as the 15-year peak?
SQL: SELECT "20_year_peak" FROM "chessmetrics" WHERE "15_year_peak"='emanuel lasker, 2816';