page8
ABCD
1
2
3
4
Puzzle 18
ABCD
1
2
3
4
Puzzle 19
ABCD
1
2
3
4
Puzzle 20
(A;4)
(A;1)
(C;1)
(C;3)
(D;1)
(B;1)
(C;2)
(D;4)
(A;3)
(C;4)
(B;4)
(D;3)
(A;2)
(B;3)
(D;2)
(B;2)
(A;4)
(A;1)
(C;1)
(C;3)
(D;1)
(B;1)
(C;2)
(D;4)
(A;3)
(C;4)
(B;4)
(D;3)
(A;2)
(B;3)
(D;2)
(B;2)
(A;4)
(A;1)
(C;1)
(C;3)
(D;1)
(B;1)
(C;2)
(D;4)
(A;3)
(C;4)
(B;4)
(D;3)
(A;2)
(B;3)
(D;2)
(B;2)