CREATE TABLE table_23664 ("Player" TEXT, "Played" FLOAT, "Sets Won" FLOAT, "Sets Lost" FLOAT, "Legs Won" FLOAT, "Legs Lost" FLOAT, "100+" FLOAT, "140+" FLOAT, "180s" FLOAT, "High Checkout" FLOAT, "3-dart Average" TEXT)

How many games did the player with 3-dart average of 66.86 play?
SELECT "Played" FROM table_23664 WHERE "3-dart Average" = '66.86'
SELECT "Played" FROM "table_23664" WHERE "3-dart Average" = '66.86'