Thanks Jeremy Bernstein!

To compile with gcc should be added in the makefile in general linked options:

ifeq ($(comp),gcc)
LDFLAGS +=-Legtb -lgtb
endif

Benigno

The fire xtreme 1.5 works well in linux using wine.
But Fire xtreme 2.0 does not work.

8/4k3/8/3BB3/4K3/8/8/8 w - - 0 1
With Houdini, multipv tbGaviota = 5 and shows the following variations
1 1 [M12] 1.Bc6 Ke6 2.Bb5 Ke7 3.Kf5 Kd8 4.Ke6 Kc8 5.Kd5 Kb7 6.Kc5 Kc8 7.Kb6 Kd8 8.Bd6 Kc8 9.Be7 Kb8 10.Ba6 Ka8 11.Bb7+ Kb8 12.Bd6#
2 1 (M12) 1.Bd4
3 1 (M12) 1.Bc3
4 1 (M12) 1.Kf5
5 1 (M12) 1 ...

[FEN "8/4k3/8/3BB3/4K3/8/8/8 w - - 0 1"]

Using 1.2 stockfish PA Gtb 2k (Multipv = 5)

1 1 [M12] 1.Bc6 Ke6 2.Bb5 Kf7 3.Kf5 Ke7 4.Bc7 Kf7 5.Bd8 Kg7 6.Bg5 Kf7 7.Bf6 Kg8 8.Kg6 Kf8 9.Bg5 Kg8 10.Bh6 Kh8 11.Bg7+ Kg8 12.Bc4#
2 1 (M12) 1.Bb7
3 1 (M12) 1.Bg8
4 1 (M12) 1.Bc3
5 1 (M12) 1.Bg3

if I now ...

could be added "evaluation Remembering" in gtb?
This seems to work in Houdini 1.5a using Gaviota (Tb).
[FEN "8/4k3/8/3BB3/4K3/8/8/8 w - - 0 1"]

1.Bc3
( { [Houdini 1.5a x64] 1:[M12]} 1.Bc6 Ke6 2.Bb5 Ke7 3.Kf5 Kd8 4.Ke6
Kc8 5.Kd5 Kb7 6.Kc5 Kc8 7.Kb6 Kd8 8.Bd6 Kc8 9.Be7 Kb8 10.Ba6 Ka8 11.
Bb7 ...

In multipv to change the position, if black has only one move, the engine returns the data from the previous spin.
For example, in the position
6k1/8/5KB1/6N1/8/8/8/8 w - - 0 1

1 1 [M19] 1.Nf7 Kf8 2.Bh7 Ke8 3.Ne5 Kd8 4.Be4 Kc7 5.Nc4 Kd7 6.Kf7 Kd8 7.Bc2 Kc7 8.Ba4 Kd8 9.Bb5 Kc7 10.Ke6 Kd8 11.Bd7 ...

Observed only one problem: I place a position different from the initial position of a game, to study and on the first play does not return the first line. Once placed moves the problem disappears.
8/8/4k3/8/8/4K3/8/4BB2 w - - 0 1

Multipv=5
1 1 (M14) 1.Bc4+
2 1 (M14) 1.Kd4
3 1 (M15) 1.Bd2
4 1 ...

I have a problem with the use of end tables Gaviota
Why if you put the value multipv 3, 5, 7 or an odd number the engine does not return the main line?
If multipv = 3, returns many times the second and third line (two lines) and lack the main line
If you do not use the end tables work correctly
I'm ...

I have a problem with the use of end tables Gaviota
Why if you put the value multipv 3, 5, 7 or an odd number the engine does not return the main line?
If multipv = 3, returns the second and third line (two lines)
If you do not use the end tables work correctly
I'm using scid.

I am looking at various positions with Houdini 1.03a multipv mode = 4.
If I pause the engine just as you are thinking about number one variation, the engine fails to send a program change number (SCID), I can only observe the variations whose numbers are 2 3 and 4.
For example, in this position is ...