Hi Kooothor,
I cannot reproduce that on GNU Chess 6.1.2.
See below the output I get after this sequence of commands:
manual
d4
c6
Nc3
d5
Nxd5
GNU Chess 6.1.2
Copyright (C) 2014 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
White (1) : manual
TimeLimit[0] = 0
TimeLimit[1] = 0
White (1) : e4
TimeLimit[0] = 0
TimeLimit[1] = 0
1. e4
black KQkq e3
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
Black (1) : c6
TimeLimit[0] = 0
TimeLimit[1] = 0
1. c6
white KQkq
r n b q k b n r
p p . p p p p p
. . p . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
White (2) : Nc3
TimeLimit[0] = 0
TimeLimit[1] = 0
2. Nc3
black KQkq
r n b q k b n r
p p . p p p p p
. . p . . . . .
. . . . . . . .
. . . . P . . .
. . N . . . . .
P P P P . P P P
R . B Q K B N R
Black (2) : d5
TimeLimit[0] = 0
TimeLimit[1] = 0
2. d5
white KQkq d6
r n b q k b n r
p p . . p p p p
. . p . . . . .
. . . p . . . .
. . . . P . . .
. . N . . . . .
P P P P . P P P
R . B Q K B N R
White (3) : Nxd5
TimeLimit[0] = 0
TimeLimit[1] = 0
3. Nxd5
black KQkq
r n b q k b n r
p p . . p p p p
. . p . . . . .
. . . N . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R . B Q K B N R
Black (3) :