Dragon 4.1.4 endgame bug

[Catherine]

Hello dear Michel, i generated the 5 EGD and a partial 6 EGB, please can you help me to solve this problem of Dragon 4.14 :
I runed a dxp game against Truus and in this position

first position

dragon.JPG (34.93 KiB) Viewed 7895 times

; Dragon with the white played 38-32.
i made also some problem like this

DRAGON2.JPG (34.68 KiB) Viewed 7895 times

with 5 EGB AND PARTIAL 6 EGB AND Dragon with withe played 37-31.
I realise that the program it very strong in nodes/sec, with me, i dont know if everybody have this problem, but the endgame database cause me problems. Thank
Catherine

[Walter Thoen]

I tried both positions in Dragon 4.1.5 with 5 pieces egdb and it played the correct moves.

Walter

[Catherine]

i have a windows 7, i dont know what happening, perhaps some missing endgame database of 6pieces?

[MichelG]

Hello dear Michel, i generated the 5 EGD and a partial 6 EGB, please can you help me to solve this problem of Dragon 4.14 :
I runed a dxp game against Truus and in this position Dragon with the white played 38-32.
i made also some problem like this
with 5 EGB AND PARTIAL 6 EGB AND Dragon with withe played 37-31.
I realise that the program it very strong in nodes/sec, with me, i dont know if everybody have this problem, but the endgame database cause me problems. Thank
Catherine

I tried to reproduce the first position, but dragon plays the right move when i try (i tested with both 5 and 7 piece databases).

In the second position, 37-31 seems to be the right move (it leads to a draw, just like some of the other moves)

If you want, you can try download the 6 pieces endings:
http://mdgsoft.home.xs4all.nl/draughts/endgame.htm

Michel

[Rein Halbersma]

Hello dear Michel, i generated the 5 EGD and a partial 6 EGB, please can you help me to solve this problem of Dragon 4.14 :
I runed a dxp game against Truus and in this position Dragon with the white played 38-32.
i made also some problem like this
with 5 EGB AND PARTIAL 6 EGB AND Dragon with withe played 37-31.
I realise that the program it very strong in nodes/sec, with me, i dont know if everybody have this problem, but the endgame database cause me problems. Thank
Catherine

I tried to reproduce the first position, but dragon plays the right move when i try (i tested with both 5 and 7 piece databases).

In the second position, 37-31 seems to be the right move (it leads to a draw, just like some of the other moves)

If you want, you can try download the 6 pieces endings:
http://mdgsoft.home.xs4all.nl/draughts/endgame.htm

Michel

Noooooo... the second position is a famous trick. white wins after 38-32! 30-35 39-33!! 40-34. Dragon should see this with dbs turned off.

[Walter Thoen]

Analysis All Moves correctly gives me (with 5 pieces egdb):

Analysing current position
Move Depth Score Opponent move
38-32 4 200.000 29-34
37-32 8 0.000 30-35 39-33 35x44 33x24
37-31 8 0.000 30-35 39-33 35x44 33x24
38-33 4 0.000 (database draw)
39-33 8 0.000 29-34 40x29
39-34 4 0.000 (database draw)
40-34 4 0.000 (database draw)
40-35 8 0.000 29-34 35x24 34x43x32x41

Regards,
Walter

[Krzychumag]

Hi Michel.

I apologise that I am asking. And what should be in a file drd0.

[Catherine]

Thanks Michel, for the endgames databases. sincerly thanks.
If you permit i have a last problem: is it normal that Dragon32.exe crash. when i play some dxpgame and when dragon have the upper in the game it crash and after i see this message

Dragon crash.JPG (145.6 KiB) Viewed 7791 times

this is the error report in text file

error report.rar

(2.38 KiB) Downloaded 198 times

.
One more time thank you and sorry to impportune you

[Krzychumag]

And with which you have versions of program Catherine 4.1.4 or 4.1.5.

[Catherine]

4.1.4 but at the download link it 4.1.5