Answer To Problem 1

e7

Answer To Problem 2

e7 (e8 also possible)

Answer To Problem 3

f8 (c8, d8, e8 also possible)

Answer To Problem 4

f8 (g8 also possible)

Answer To Problem 5

f1

Answer To Problem 6

e8

Answer To Problem 7

f1

Answer To Problem 8

e8

Answer To Problem 9

d8 (e8 also possible)

Answer To Problem 10

h1

Answer To Problem 11

e6

Answer To Problem 12

h1 (g1 also possible)

Answer To Problem 13

c1

Answer To Problem 14

b5 (b6 also possible)

Answer To Problem 15

c2 (c1 is remotely possible)

Answer To Problem 16

g8 (h8 and h7 also possible)

Answer To Problem 17

e8

Answer To Problem 18

d8

Answer To Problem 19

e4

Answer To Problem 20

c8