CREATE TABLE table_204_971 (id DECIMAL, "m" DECIMAL, "date" TEXT, "tournament" TEXT, "round" TEXT, "ground" TEXT, "opponent" TEXT, "score" TEXT, "attendance" DECIMAL, "dinamo scorers" TEXT, "report" TEXT)

which game had the highest attendance ?
SELECT "date" FROM table_204_971 ORDER BY "attendance" DESC LIMIT 1
SELECT "date" FROM "table_204_971" ORDER BY "attendance" DESC NULLS LAST LIMIT 1