Black's best opening defence reply moves against White's first moves

This list has been the result of a research from professional competitive chess games which proves and recommends Black's best defense against any of the twenty possible first moves of White. The basis of Black's best reply moves comes from the fact that the games played successfully resulted with most wins by Black.

White's opening first moves ------------- Black's best defense reply moves

[1] 1. a3 (Anderssen's Opening) --------- 1... g6

[2] 1. a4 (Ware Opening) ---------------- 1... d5

[3] 1. b3 (Larsen's Defence) ------------ 1... d5

[4] 1. b4 (Polish Defence) -------------- 1... Nf6

[5] 1. c3 (Saragossa Opening) ----------- 1... d5

[6] 1. c4 (English Opening) ------------- 1... c5

[7] 1. d3 (Mieses Opening) -------------- 1... e5

[8] 1. d4 (Queen's Pawn Opening) -------- 1... Nf6

[9] 1. e3 (Van't Kruijs Opening) -------- 1... d5

[10] 1. e4 (King's Pawn Opening) -------- 1... c5

[11] 1. f3 (Barnes Opening) ------------- 1... d5

[12] 1. f4 (Bird's Opening) ------------- 1... d5

[13] 1. g3 (Benko's Opening) ------------ 1... d5

[14] 1. g4 (Grob Opening) --------------- 1... e5

[15] 1. h3 (Clemenz Opening) ------------ 1... d5

[16] 1. h4 (Desprez Opening) ------------ 1... d5

[17] 1. Na3 (Durkin Opening) ------------ 1... d5

[18] 1. Nc3 (Dunst Opening) ------------- 1... d5

[19] 1. Nf3 (Reti Opening) -------------- 1... g6

[20] 1. Nh3 (Amar Opening) -------------- 1... d5