Chess System Tal 2.02 upgrade

[chrisw]

Chess System Tal 2.02 upgrade.

Fixes issue some people had with numbers of cores and threads, fixes the random and occasional hang issue. Might be slightly faster than the original, but apart from that no internal changes.i did manage to sort out the .nnue.bin include into the compile, the old version was compiled with .nnue.bin inline but by a terrible workaround because I couldn’t work out how to get round the Microsoft compiler bitching about include.bin file size. Now fixed. Executables are now much smaller.

You can download it from https://whittingtonchess.com/

Comments and gripes in this thread only please. I’ll attend to any issues raised in first few days if any (for example thread_max is set to 64), and might then create the EAS and Extreme versions.

Just a little note, since I’m laptop/internet nomadic I’ve little access to either the original sources or the original xxx.nnue’s. The main source was reconstituted from GitHub and Ed, neither (I suspect) match entirely the old release version, but heavy testing indicates the engine is the same, almost, it is probably actually a dev version from after the original release but seems equivalent, as far as I can tell. Nnues’s were a different matter altogether, none available at all, and finally reconstituted by reverse engineering them out of old release versions. This seems to have worked. If not, generating exact feature and bug fixed copies will have to await me being back in France.

[peter]

Thanks for the update!

So far (325 positions tested) one crash with this one study from O.Pervakov & A.Stavrietsky:

4k2r/3Rp1p1/1Kp1P3/Pp1P2b1/4R3/P4P2/1p4q1/1Q5r w k - 0 1

Tried it in cb-GUIs as well as in console repeatedly, each time error message from GUI or simply closing of console- window, regards

[chrisw]

Thanks for the update!

So far (325 positions tested) one crash with this one study from O.Pervakov & A.Stavrietsky:

4k2r/3Rp1p1/1Kp1P3/Pp1P2b1/4R3/P4P2/1p4q1/1Q5r w k - 0 1

Tried it in cb-GUIs as well as in console repeatedly, each time error message from GUI or simply closing of console- window, regards

.

Ok, thanks. I assume AVX2 version? Can you tell me what crashed exactly? Loading the position, or go movetime xxxx, or something else?

[peter]

Thanks for the update!

So far (325 positions tested) one crash with this one study from O.Pervakov & A.Stavrietsky:

4k2r/3Rp1p1/1Kp1P3/Pp1P2b1/4R3/P4P2/1p4q1/1Q5r w k - 0 1

Tried it in cb-GUIs as well as in console repeatedly, each time error message from GUI or simply closing of console- window, regards

.

Ok, thanks. I assume AVX2 version? Can you tell me what crashed exactly? Loading the position, or go movetime xxxx, or something else?

avx512 compile, as well single thread as with 6 and with 30 threads of 16x4.3GHz Ryzen 9950X3D CPU, Windows11.
In cb- GUI error message "this is a problem in the engine" in infinite analysis (with confirming the message, GUI and engine go on working with change of position), in console with go infinite window closes.

[Bart Weststrate]

Thanks for the update!

So far (325 positions tested) one crash with this one study from O.Pervakov & A.Stavrietsky:

4k2r/3Rp1p1/1Kp1P3/Pp1P2b1/4R3/P4P2/1p4q1/1Q5r w k - 0 1

Tried it in cb-GUIs as well as in console repeatedly, each time error message from GUI or simply closing of console- window, regards

.

Ok, thanks. I assume AVX2 version? Can you tell me what crashed exactly? Loading the position, or go movetime xxxx, or something else?

Chris StrongMalt guest engine here (old version, not yet your debugged version). Some more info about the crash ( I7 13700 8 cores) log is from polyglot / winboard:

4k2r/3Rp1p1/1Kp1P3/Pp1P2b1/4R3/P4P2/1p4q1/1Q5r w k - 0 1
analysis on

1781440514.635 Adapter->GUI: 26 +0 744 80840485 Re1 R1h6 Qf5 Rf6 Qh7 Rxh7 Rc7 Rxe6 dxe6 Qd2 Rc8+ Qd8+ Rxd8+ Kxd8 Kb7 Ke8 a6 Rh4 f4 Rxf4 Rh1 Bh6 Rb1 Ra4 Rxb2 Rxa3 Rb1 Kf8 a7 Bf4 a8=Q+ Rxa8 Kxa8 c5 Rxb5 Bd6 Kb7 g5 Rb2 g4 Kc8 Kg7 Rd2 g3 Kd7 c4 Rxd6 exd6 e7 g2 e8=Q g1=Q Qe7+ Kg8 Qd8+ Kh7 Qh4+ Kg6 Qe4+ Kh6 Qh4+ Kg7
1781440515.191 GUI->Adapter: .
1781440515.191 Adapter->GUI: stat01: 744 80840485 26 0 0
1781440516.596 Engine->Adapter: info depth 27 seldepth 55 time 9400 nodes 101596079 score cp -19 pv e4e1 h1h6 b1f5 h6f6 f5h7 h8h7 d7c7 f6e6 d5e6 g2d2 c7c8 d2d8 c8d8 e8d8 b6b7 d8e8 a5a6 h7h4 f3f4 h4f4 e1h1 g5h6 h1b1 f4a4 b1b2 a4a3 b2b1 c6c5 b1b5 h6e3 a6a7 e8d8 a7a8q a3a8 b7a8 d8c7 b5c5 c7d6 c5c4 d6d5 c4b4 e3c5 b4g4 c5d4 a8b7 d4f6 g4b4 g7g5 b4b6 g5g4 b6b4 g4g3 b4g4 hashfull 647 nps 10808109
1781440516.596 Adapter->GUI: # info depth 27 seldepth 55 time 9400 nodes 101596079 score cp -19 pv e4e1 h1h6 b1f5 h6f6 f5h7 h8h7 d7c7 f6e6 d5e6 g2d2 c7c8 d2d8 c8d8 e8d8 b6b7 d8e8 a5a6 h7h4 f3f4 h4f4 e1h1 g5h6 h1b1 f4a4 b1b2 a4a3 b2b1 c6c5 b1b5 h6e3 a6a7 e8d8 a7a8q a3a8 b7a8 d8c7 b5c5 c7d6 c5c4 d6d5 c4b4 e3c5 b4g4 c5d4 a8b7 d4f6 g4b4 g7g5 b4b6 g5g4 b6b4 g4g3 b4g4 hashfull 647 nps 10808109

1781440516.596 Adapter->GUI: 27 -19 940 101596079 Re1 R1h6 Qf5 Rf6 Qh7 Rxh7 Rc7 Rxe6 dxe6 Qd2 Rc8+ Qd8+ Rxd8+ Kxd8 Kb7 Ke8 a6 Rh4 f4 Rxf4 Rh1 Bh6 Rb1 Ra4 Rxb2 Rxa3 Rb1 c5 Rxb5 Be3 a7 Kd8 a8=Q+ Rxa8 Kxa8 Kc7 Rxc5+ Kd6 Rc4 Kd5 Rb4 Bc5 Rg4 Bd4 Kb7 Bf6 Rb4 g5 Rb6 g4 Rb4 g3 Rg4
1781440517.048 Engine->Adapter: Assertion failed: pos->pieces[us] & (ONE << to), file H:\Chess-System-Tal-2.01-LATEST\nnue.cpp, line 1075
1781440517.048 Adapter->GUI: # Assertion failed: pos->pieces[us] & (ONE << to), file H:\Chess-System-Tal-2.01-LATEST\nnue.cpp, line 1075

1781440517.190 GUI->Adapter: .
1781440517.190 Adapter->GUI: stat01: 940 101596079 27 0 0
1781440518.958 POLYGLOT *** Mainloop has ended ***
1781440518.958 POLYGLOT Closing engine.
1781440518.958 Adapter->Engine: EOF
1781440518.958 POLYGLOT Waiting for child process to exit.
1781440518.958 POLYGLOT pipex_exit(): sml-1.2B.exe: child exited unexpectedly.
1781440518.958 POLYGLOT *** QUIT ***
1781440519.173 POLYGLOT Calling exit

[chrisw]

Thanks for the update!

So far (325 positions tested) one crash with this one study from O.Pervakov & A.Stavrietsky:

4k2r/3Rp1p1/1Kp1P3/Pp1P2b1/4R3/P4P2/1p4q1/1Q5r w k - 0 1

Tried it in cb-GUIs as well as in console repeatedly, each time error message from GUI or simply closing of console- window, regards

.

Ok, thanks. I assume AVX2 version? Can you tell me what crashed exactly? Loading the position, or go movetime xxxx, or something else?

avx512 compile, as well single thread as with 6 and with 30 threads of 16x4.3GHz Ryzen 9950X3D CPU, Windows11.
In cb- GUI error message "this is a problem in the engine" in infinite analysis (with confirming the message, GUI and engine go on working with change of position), in console with go infinite window closes.

Thanks for that. Very old and obscure bug, well done. Fixed and credited.

New Release is now 2.03 and available at https://whittingtonchess.com/

[chrisw]

Hi Bert,

Yes, its the same bug as fixed now for CSTal 2.03, which doesn't help you until Ed also updates the bug fixes and recompiles. Looks like we didn't set the compiler up quite correctly because it leaves in some stray asserts which ought not to be there (speed reasons, amongst other things).

Thanks.

Thanks for the update!

So far (325 positions tested) one crash with this one study from O.Pervakov & A.Stavrietsky:

4k2r/3Rp1p1/1Kp1P3/Pp1P2b1/4R3/P4P2/1p4q1/1Q5r w k - 0 1

Tried it in cb-GUIs as well as in console repeatedly, each time error message from GUI or simply closing of console- window, regards

.

Ok, thanks. I assume AVX2 version? Can you tell me what crashed exactly? Loading the position, or go movetime xxxx, or something else?

Chris StrongMalt guest engine here (old version, not yet your debugged version). Some more info about the crash ( I7 13700 8 cores) log is from polyglot / winboard:

4k2r/3Rp1p1/1Kp1P3/Pp1P2b1/4R3/P4P2/1p4q1/1Q5r w k - 0 1
analysis on

1781440514.635 Adapter->GUI: 26 +0 744 80840485 Re1 R1h6 Qf5 Rf6 Qh7 Rxh7 Rc7 Rxe6 dxe6 Qd2 Rc8+ Qd8+ Rxd8+ Kxd8 Kb7 Ke8 a6 Rh4 f4 Rxf4 Rh1 Bh6 Rb1 Ra4 Rxb2 Rxa3 Rb1 Kf8 a7 Bf4 a8=Q+ Rxa8 Kxa8 c5 Rxb5 Bd6 Kb7 g5 Rb2 g4 Kc8 Kg7 Rd2 g3 Kd7 c4 Rxd6 exd6 e7 g2 e8=Q g1=Q Qe7+ Kg8 Qd8+ Kh7 Qh4+ Kg6 Qe4+ Kh6 Qh4+ Kg7
1781440515.191 GUI->Adapter: .
1781440515.191 Adapter->GUI: stat01: 744 80840485 26 0 0
1781440516.596 Engine->Adapter: info depth 27 seldepth 55 time 9400 nodes 101596079 score cp -19 pv e4e1 h1h6 b1f5 h6f6 f5h7 h8h7 d7c7 f6e6 d5e6 g2d2 c7c8 d2d8 c8d8 e8d8 b6b7 d8e8 a5a6 h7h4 f3f4 h4f4 e1h1 g5h6 h1b1 f4a4 b1b2 a4a3 b2b1 c6c5 b1b5 h6e3 a6a7 e8d8 a7a8q a3a8 b7a8 d8c7 b5c5 c7d6 c5c4 d6d5 c4b4 e3c5 b4g4 c5d4 a8b7 d4f6 g4b4 g7g5 b4b6 g5g4 b6b4 g4g3 b4g4 hashfull 647 nps 10808109
1781440516.596 Adapter->GUI: # info depth 27 seldepth 55 time 9400 nodes 101596079 score cp -19 pv e4e1 h1h6 b1f5 h6f6 f5h7 h8h7 d7c7 f6e6 d5e6 g2d2 c7c8 d2d8 c8d8 e8d8 b6b7 d8e8 a5a6 h7h4 f3f4 h4f4 e1h1 g5h6 h1b1 f4a4 b1b2 a4a3 b2b1 c6c5 b1b5 h6e3 a6a7 e8d8 a7a8q a3a8 b7a8 d8c7 b5c5 c7d6 c5c4 d6d5 c4b4 e3c5 b4g4 c5d4 a8b7 d4f6 g4b4 g7g5 b4b6 g5g4 b6b4 g4g3 b4g4 hashfull 647 nps 10808109

1781440516.596 Adapter->GUI: 27 -19 940 101596079 Re1 R1h6 Qf5 Rf6 Qh7 Rxh7 Rc7 Rxe6 dxe6 Qd2 Rc8+ Qd8+ Rxd8+ Kxd8 Kb7 Ke8 a6 Rh4 f4 Rxf4 Rh1 Bh6 Rb1 Ra4 Rxb2 Rxa3 Rb1 c5 Rxb5 Be3 a7 Kd8 a8=Q+ Rxa8 Kxa8 Kc7 Rxc5+ Kd6 Rc4 Kd5 Rb4 Bc5 Rg4 Bd4 Kb7 Bf6 Rb4 g5 Rb6 g4 Rb4 g3 Rg4
1781440517.048 Engine->Adapter: Assertion failed: pos->pieces[us] & (ONE << to), file H:\Chess-System-Tal-2.01-LATEST\nnue.cpp, line 1075
1781440517.048 Adapter->GUI: # Assertion failed: pos->pieces[us] & (ONE << to), file H:\Chess-System-Tal-2.01-LATEST\nnue.cpp, line 1075

1781440517.190 GUI->Adapter: .
1781440517.190 Adapter->GUI: stat01: 940 101596079 27 0 0
1781440518.958 POLYGLOT *** Mainloop has ended ***
1781440518.958 POLYGLOT Closing engine.
1781440518.958 Adapter->Engine: EOF
1781440518.958 POLYGLOT Waiting for child process to exit.
1781440518.958 POLYGLOT pipex_exit(): sml-1.2B.exe: child exited unexpectedly.
1781440518.958 POLYGLOT *** QUIT ***
1781440519.173 POLYGLOT Calling exit

[Bart Weststrate]

Howdy Chris. If this all gonna happen I'm a lucky man. In the last monthly tournament on Nightmarechess the engine suffered from this bug 7 times.... The gui loses connection to the engine but time is running still. So this bug doesn't happen only in weird postions (thanks Peter) but also often in games.

Apart from this thanks for the nice aggressive framework. Nice craftsmanship from you en Ed.

Hi Bert,

Yes, its the same bug as fixed now for CSTal 2.03, which doesn't help you until Ed also updates the bug fixes and recompiles. Looks like we didn't set the compiler up quite correctly because it leaves in some stray asserts which ought not to be there (speed reasons, amongst other things).

Thanks.

Thanks for the update!

So far (325 positions tested) one crash with this one study from O.Pervakov & A.Stavrietsky:

4k2r/3Rp1p1/1Kp1P3/Pp1P2b1/4R3/P4P2/1p4q1/1Q5r w k - 0 1

Tried it in cb-GUIs as well as in console repeatedly, each time error message from GUI or simply closing of console- window, regards

.

Ok, thanks. I assume AVX2 version? Can you tell me what crashed exactly? Loading the position, or go movetime xxxx, or something else?

Chris StrongMalt guest engine here (old version, not yet your debugged version). Some more info about the crash ( I7 13700 8 cores) log is from polyglot / winboard:

4k2r/3Rp1p1/1Kp1P3/Pp1P2b1/4R3/P4P2/1p4q1/1Q5r w k - 0 1
analysis on

1781440514.635 Adapter->GUI: 26 +0 744 80840485 Re1 R1h6 Qf5 Rf6 Qh7 Rxh7 Rc7 Rxe6 dxe6 Qd2 Rc8+ Qd8+ Rxd8+ Kxd8 Kb7 Ke8 a6 Rh4 f4 Rxf4 Rh1 Bh6 Rb1 Ra4 Rxb2 Rxa3 Rb1 Kf8 a7 Bf4 a8=Q+ Rxa8 Kxa8 c5 Rxb5 Bd6 Kb7 g5 Rb2 g4 Kc8 Kg7 Rd2 g3 Kd7 c4 Rxd6 exd6 e7 g2 e8=Q g1=Q Qe7+ Kg8 Qd8+ Kh7 Qh4+ Kg6 Qe4+ Kh6 Qh4+ Kg7
1781440515.191 GUI->Adapter: .
1781440515.191 Adapter->GUI: stat01: 744 80840485 26 0 0
1781440516.596 Engine->Adapter: info depth 27 seldepth 55 time 9400 nodes 101596079 score cp -19 pv e4e1 h1h6 b1f5 h6f6 f5h7 h8h7 d7c7 f6e6 d5e6 g2d2 c7c8 d2d8 c8d8 e8d8 b6b7 d8e8 a5a6 h7h4 f3f4 h4f4 e1h1 g5h6 h1b1 f4a4 b1b2 a4a3 b2b1 c6c5 b1b5 h6e3 a6a7 e8d8 a7a8q a3a8 b7a8 d8c7 b5c5 c7d6 c5c4 d6d5 c4b4 e3c5 b4g4 c5d4 a8b7 d4f6 g4b4 g7g5 b4b6 g5g4 b6b4 g4g3 b4g4 hashfull 647 nps 10808109
1781440516.596 Adapter->GUI: # info depth 27 seldepth 55 time 9400 nodes 101596079 score cp -19 pv e4e1 h1h6 b1f5 h6f6 f5h7 h8h7 d7c7 f6e6 d5e6 g2d2 c7c8 d2d8 c8d8 e8d8 b6b7 d8e8 a5a6 h7h4 f3f4 h4f4 e1h1 g5h6 h1b1 f4a4 b1b2 a4a3 b2b1 c6c5 b1b5 h6e3 a6a7 e8d8 a7a8q a3a8 b7a8 d8c7 b5c5 c7d6 c5c4 d6d5 c4b4 e3c5 b4g4 c5d4 a8b7 d4f6 g4b4 g7g5 b4b6 g5g4 b6b4 g4g3 b4g4 hashfull 647 nps 10808109

1781440516.596 Adapter->GUI: 27 -19 940 101596079 Re1 R1h6 Qf5 Rf6 Qh7 Rxh7 Rc7 Rxe6 dxe6 Qd2 Rc8+ Qd8+ Rxd8+ Kxd8 Kb7 Ke8 a6 Rh4 f4 Rxf4 Rh1 Bh6 Rb1 Ra4 Rxb2 Rxa3 Rb1 c5 Rxb5 Be3 a7 Kd8 a8=Q+ Rxa8 Kxa8 Kc7 Rxc5+ Kd6 Rc4 Kd5 Rb4 Bc5 Rg4 Bd4 Kb7 Bf6 Rb4 g5 Rb6 g4 Rb4 g3 Rg4
1781440517.048 Engine->Adapter: Assertion failed: pos->pieces[us] & (ONE << to), file H:\Chess-System-Tal-2.01-LATEST\nnue.cpp, line 1075
1781440517.048 Adapter->GUI: # Assertion failed: pos->pieces[us] & (ONE << to), file H:\Chess-System-Tal-2.01-LATEST\nnue.cpp, line 1075

1781440517.190 GUI->Adapter: .
1781440517.190 Adapter->GUI: stat01: 940 101596079 27 0 0
1781440518.958 POLYGLOT *** Mainloop has ended ***
1781440518.958 POLYGLOT Closing engine.
1781440518.958 Adapter->Engine: EOF
1781440518.958 POLYGLOT Waiting for child process to exit.
1781440518.958 POLYGLOT pipex_exit(): sml-1.2B.exe: child exited unexpectedly.
1781440518.958 POLYGLOT *** QUIT ***
1781440519.173 POLYGLOT Calling exit

[chrisw]

Ouch!

Okay, I just need to ensure with Ed that the fixes are in his version, and it will be up to him to recompile. I could do it if I had the nnue’s, but I don’t. As a last resort I could extract them out of your executables but would rather not! Anyway, I don’t actually have his diverged source.
We’ll wait on Ed.

Howdy Chris. If this all gonna happen I'm a lucky man. In the last monthly tournament on Nightmarechess the engine suffered from this bug 7 times.... The gui loses connection to the engine but time is running still. So this bug doesn't happen only in weird postions (thanks Peter) but also often in games.

Apart from this thanks for the nice aggressive framework. Nice craftsmanship from you en Ed.

Hi Bert,

Yes, its the same bug as fixed now for CSTal 2.03, which doesn't help you until Ed also updates the bug fixes and recompiles. Looks like we didn't set the compiler up quite correctly because it leaves in some stray asserts which ought not to be there (speed reasons, amongst other things).

Thanks.

Thanks for the update!

So far (325 positions tested) one crash with this one study from O.Pervakov & A.Stavrietsky:

4k2r/3Rp1p1/1Kp1P3/Pp1P2b1/4R3/P4P2/1p4q1/1Q5r w k - 0 1

Tried it in cb-GUIs as well as in console repeatedly, each time error message from GUI or simply closing of console- window, regards

.

Ok, thanks. I assume AVX2 version? Can you tell me what crashed exactly? Loading the position, or go movetime xxxx, or something else?

Chris StrongMalt guest engine here (old version, not yet your debugged version). Some more info about the crash ( I7 13700 8 cores) log is from polyglot / winboard:

4k2r/3Rp1p1/1Kp1P3/Pp1P2b1/4R3/P4P2/1p4q1/1Q5r w k - 0 1
analysis on

1781440514.635 Adapter->GUI: 26 +0 744 80840485 Re1 R1h6 Qf5 Rf6 Qh7 Rxh7 Rc7 Rxe6 dxe6 Qd2 Rc8+ Qd8+ Rxd8+ Kxd8 Kb7 Ke8 a6 Rh4 f4 Rxf4 Rh1 Bh6 Rb1 Ra4 Rxb2 Rxa3 Rb1 Kf8 a7 Bf4 a8=Q+ Rxa8 Kxa8 c5 Rxb5 Bd6 Kb7 g5 Rb2 g4 Kc8 Kg7 Rd2 g3 Kd7 c4 Rxd6 exd6 e7 g2 e8=Q g1=Q Qe7+ Kg8 Qd8+ Kh7 Qh4+ Kg6 Qe4+ Kh6 Qh4+ Kg7
1781440515.191 GUI->Adapter: .
1781440515.191 Adapter->GUI: stat01: 744 80840485 26 0 0
1781440516.596 Engine->Adapter: info depth 27 seldepth 55 time 9400 nodes 101596079 score cp -19 pv e4e1 h1h6 b1f5 h6f6 f5h7 h8h7 d7c7 f6e6 d5e6 g2d2 c7c8 d2d8 c8d8 e8d8 b6b7 d8e8 a5a6 h7h4 f3f4 h4f4 e1h1 g5h6 h1b1 f4a4 b1b2 a4a3 b2b1 c6c5 b1b5 h6e3 a6a7 e8d8 a7a8q a3a8 b7a8 d8c7 b5c5 c7d6 c5c4 d6d5 c4b4 e3c5 b4g4 c5d4 a8b7 d4f6 g4b4 g7g5 b4b6 g5g4 b6b4 g4g3 b4g4 hashfull 647 nps 10808109
1781440516.596 Adapter->GUI: # info depth 27 seldepth 55 time 9400 nodes 101596079 score cp -19 pv e4e1 h1h6 b1f5 h6f6 f5h7 h8h7 d7c7 f6e6 d5e6 g2d2 c7c8 d2d8 c8d8 e8d8 b6b7 d8e8 a5a6 h7h4 f3f4 h4f4 e1h1 g5h6 h1b1 f4a4 b1b2 a4a3 b2b1 c6c5 b1b5 h6e3 a6a7 e8d8 a7a8q a3a8 b7a8 d8c7 b5c5 c7d6 c5c4 d6d5 c4b4 e3c5 b4g4 c5d4 a8b7 d4f6 g4b4 g7g5 b4b6 g5g4 b6b4 g4g3 b4g4 hashfull 647 nps 10808109

1781440516.596 Adapter->GUI: 27 -19 940 101596079 Re1 R1h6 Qf5 Rf6 Qh7 Rxh7 Rc7 Rxe6 dxe6 Qd2 Rc8+ Qd8+ Rxd8+ Kxd8 Kb7 Ke8 a6 Rh4 f4 Rxf4 Rh1 Bh6 Rb1 Ra4 Rxb2 Rxa3 Rb1 c5 Rxb5 Be3 a7 Kd8 a8=Q+ Rxa8 Kxa8 Kc7 Rxc5+ Kd6 Rc4 Kd5 Rb4 Bc5 Rg4 Bd4 Kb7 Bf6 Rb4 g5 Rb6 g4 Rb4 g3 Rg4
1781440517.048 Engine->Adapter: Assertion failed: pos->pieces[us] & (ONE << to), file H:\Chess-System-Tal-2.01-LATEST\nnue.cpp, line 1075
1781440517.048 Adapter->GUI: # Assertion failed: pos->pieces[us] & (ONE << to), file H:\Chess-System-Tal-2.01-LATEST\nnue.cpp, line 1075

1781440517.190 GUI->Adapter: .
1781440517.190 Adapter->GUI: stat01: 940 101596079 27 0 0
1781440518.958 POLYGLOT *** Mainloop has ended ***
1781440518.958 POLYGLOT Closing engine.
1781440518.958 Adapter->Engine: EOF
1781440518.958 POLYGLOT Waiting for child process to exit.
1781440518.958 POLYGLOT pipex_exit(): sml-1.2B.exe: child exited unexpectedly.
1781440518.958 POLYGLOT *** QUIT ***
1781440519.173 POLYGLOT Calling exit

[PHILOCHESS]

Many thanks, Chris, for this new release.

I have downloaded both 2.04 versions and will include them together in my upcoming engine tournaments and opening-book research. The E1162-EAS version is especially interesting to me because of its more Tal-like attacking style, while the E1019 version will also be very useful as a point of comparison.

It is great to see Chess System Tal being updated and refined. I really appreciate the work behind it, especially the effort to keep such a distinctive engine alive.

Best regards,
Robert