NNUE question

[GrahamCCRL]

Are you using a 'borrowed' NNUE or is Kobra using an original one?

Graham (CCRL)

[jasper-sinclair]

Hi Graham,

Thanks for your interest in Kobra.

Kobra source code and it's NNUE evaluation net are 100% original. Kobra_1.0.nnue was created from the many millions of self-play games created during development and testing. No other data was used.

For more info, see src/nnue.md.

[GrahamCCRL]

Excellent. I've put it into my Amateur Series.

On Thu, Mar 14, 2024 at 2:39 AM Jasper @.***> wrote:

Hi Graham,

Thanks for your interest in Kobra.

Kobra source code and it's NNUE evaluation net are 100% original. Kobra_1.0.nnue was created from the many millions of self-play games created during development and testing. No other data was used.

For more info, see src/nnue.md.

— Reply to this email directly, view it on GitHub https://github.com/jasper-sinclair/kobra/issues/3#issuecomment-1994428927, or unsubscribe https://github.com/notifications/unsubscribe-auth/AVOIVUTG2ZRUTBXMXKYTX2TYYBJIJAVCNFSM6AAAAABETEDWVOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSOJUGQZDQOJSG4 . You are receiving this because you authored the thread.Message ID: @.***>

[jasper-sinclair]

Awesome! Sounds like fun. Thanks.

[jasper-sinclair]

Hi Graham CCRL,

Thanks very much for hosting this tournament. I watched one of the Kobra games today and noticed that you were using Kobra 1.0 which has a serious bug making it play much weaker than normal...(with increment time controls, it uses increment only).

2 weeks ago I released a fix: Kobra 1.0a ...see https://github.com/jasper-sinclair/kobra/releases/tag/1.0a

This is in fact the version that appears in your CCRL 40/15 rating list https://computerchess.org.uk/ccrl/4040/ so I assumed of course you were aware of the update.

Is it possible to use this updated release for the rest of the tournament?

In any event, thanks again for inviting Kobra to your Amateur competition!

Best Regards, Jasper

[GrahamCCRL]

I'll update shoertly. :-)

On Thu, Mar 28, 2024 at 8:34 AM Jasper @.***> wrote:

Hi Graham,

Thanks very much for hosting this tournament. I watched one of the Kobra games today and noticed that you were using Kobra 1.0 which has a serious bug making it play much weaker than normal...(with increment time controls, it uses increment only).

2 weeks ago I released a fix: Kobra 1.0a ...see https://github.com/jasper-sinclair/kobra/releases/tag/1.0a.

This is in fact the version that appears in your CCRL 40/15 rating list https://computerchess.org.uk/ccrl/4040/ so I assumed

of course you were aware of the update.

Is it possible to use this updated release for the rest of the tournament?

In any event, thanks again for inviting Kobra to your Amateur competition!

Best Regards,

Jasper

Sent: Wednesday, March 13, 2024 at 3:03 PM From: "GrahamCCRL" @.> To: "jasper-sinclair/kobra" @.> Cc: "Jasper" @.>, "Comment" @.> Subject: Re: [jasper-sinclair/kobra] NNUE question (Issue #3)

Excellent. I've put it into my Amateur Series.

On Thu, Mar 14, 2024 at 2:39 AM Jasper @.***> wrote:

Hi Graham,

Thanks for your interest in Kobra.

Kobra source code and it's NNUE evaluation net are 100% original. Kobra_1.0.nnue was created from the many millions of self-play games created during development and testing. No other data was used.

For more info, see src/nnue.md.

— Reply to this email directly, view it on GitHub < https://github.com/jasper-sinclair/kobra/issues/3#issuecomment-1994428927 , or unsubscribe < https://github.com/notifications/unsubscribe-auth/AVOIVUTG2ZRUTBXMXKYTX2TYYBJIJAVCNFSM6AAAAABETEDWVOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSOJUGQZDQOJSG4

. You are receiving this because you authored the thread.Message ID: @.***>

— Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you commented.Message ID: @.***>

— Reply to this email directly, view it on GitHub https://github.com/jasper-sinclair/kobra/issues/3#issuecomment-2023814375, or unsubscribe https://github.com/notifications/unsubscribe-auth/AVOIVUSIOT7NDXQZQMHS2X3Y2MNL5AVCNFSM6AAAAABETEDWVOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDAMRTHAYTIMZXGU . You are receiving this because you authored the thread.Message ID: @.***>

[GrahamCCRL]

1.0a is replaying the first few games now.

On Thu, Mar 28, 2024 at 8:34 AM Jasper @.***> wrote:

Hi Graham,

Thanks very much for hosting this tournament. I watched one of the Kobra games today and noticed that you were using Kobra 1.0 which has a serious bug making it play much weaker than normal...(with increment time controls, it uses increment only).

2 weeks ago I released a fix: Kobra 1.0a ...see https://github.com/jasper-sinclair/kobra/releases/tag/1.0a.

This is in fact the version that appears in your CCRL 40/15 rating list https://computerchess.org.uk/ccrl/4040/ so I assumed

of course you were aware of the update.

Is it possible to use this updated release for the rest of the tournament?

In any event, thanks again for inviting Kobra to your Amateur competition!

Best Regards,

Jasper

Sent: Wednesday, March 13, 2024 at 3:03 PM From: "GrahamCCRL" @.> To: "jasper-sinclair/kobra" @.> Cc: "Jasper" @.>, "Comment" @.> Subject: Re: [jasper-sinclair/kobra] NNUE question (Issue #3)

Excellent. I've put it into my Amateur Series.

On Thu, Mar 14, 2024 at 2:39 AM Jasper @.***> wrote:

Hi Graham,

Thanks for your interest in Kobra.

Kobra source code and it's NNUE evaluation net are 100% original. Kobra_1.0.nnue was created from the many millions of self-play games created during development and testing. No other data was used.

For more info, see src/nnue.md.

— Reply to this email directly, view it on GitHub < https://github.com/jasper-sinclair/kobra/issues/3#issuecomment-1994428927 , or unsubscribe < https://github.com/notifications/unsubscribe-auth/AVOIVUTG2ZRUTBXMXKYTX2TYYBJIJAVCNFSM6AAAAABETEDWVOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSOJUGQZDQOJSG4

. You are receiving this because you authored the thread.Message ID: @.***>

— Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you commented.Message ID: @.***>

— Reply to this email directly, view it on GitHub https://github.com/jasper-sinclair/kobra/issues/3#issuecomment-2023814375, or unsubscribe https://github.com/notifications/unsubscribe-auth/AVOIVUSIOT7NDXQZQMHS2X3Y2MNL5AVCNFSM6AAAAABETEDWVOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDAMRTHAYTIMZXGU . You are receiving this because you authored the thread.Message ID: @.***>

[GrahamCCRL]

---------- Forwarded message --------- From: Graham Banks @.> Date: Mon, Apr 29, 2024 at 11:03 AM Subject: 108th Amateur Series Division 7 To: Krasimir Topchiyski @.>, @.>, Duhamel Patrice @.>, Richard Pijl @.>, @.>, WillChing01/Pingu < @.***>

108TH AMATEUR SERIES (Division 7)

AMD Ryzen 5950x ChessGUI 256mb hash each where possible 6 piece tablebases Ponder off GBSelect2024.cgb book 12 minutes with 8 second increments. 4 cycles 52 rounds All engines 1CPU (64-bit where available)

The top engine will be promoted and the bottom engine will be relegated. Any other changes of division will be at my discretion and may not necessarily involve playoff matches.

Participants

4ku 4.0 64-bit (relegated) Bagatur 4.1a 64-bit (relegated) Francesca MAD 0.32 64-bit Ynode 0133 64-bit Cheese 3.2.1 64-bit Kobra 1.1 64-bit (promoted) ice4 4.0 64-bit (relegated) tomitankChess 5.1 64-bit The Baron 3.45 64-bit OliThink 5.10.5 64-bit Clovis III 64-bit Inanis 1.2.0 64-bit (promoted) Lambergar 0.5.2 64-bit (promoted) Pingu 3.0.0 64-bit

Web based link for live viewing (courtesy of Jay - Berserk author). https://ccrl.live/16073

[GrahamCCRL]

---------- Forwarded message --------- From: Graham Banks @.> Date: Sun, May 19, 2024 at 11:25 PM Subject: New Tournament To: Charles Roberson @.>, @.>, < @.>, @.***>

THE OVERPOWERING FRAGRANCE

AMD Ryzen 5950x ChessGUI 256mb hash each where possible 6 piece tablebases Ponder off GBSelect2024.cgb book 12 minutes with 8 second increments. 4 cycles 36 rounds All engines 1CPU

Participants

Simbelmyne 1.7.0 64-bit OliThink 5.10.5 64-bit Clovis III 64-bit Ares 3.0.3 64-bit Cheers 0.3.0 64-bit Nemo 1.0.1 64-bit Dumb 2.1 64-bit Onno 1.2.70 64-bit Seawall 20231015 64-bit Belette 3.0.0 64-bit

Web based link for live viewing (courtesy of Jay - Berserk author). https://ccrl.live/16071

Alternatively, if you install TLCV (Tom's Live Chess Viewer) on your computer, you can watch the games live move by move. You'll also be able to chat to others following the tournament in the chatroom there. http://kirill-kryukov.com/chess/discuss ... p?id=42959 http://kirill-kryukov.com/chess/discussion-board/download/file.php?id=42959 Host - GrahamCCRL.dyndns.org Port - 16071 Linux users can use Livius: https://github.com/kmar/livius

There is also a Livius windows version. It has live pv boards as a nice addition. http://www.crabaware.com/livius/

[GrahamCCRL]

---------- Forwarded message --------- From: Graham Banks @.> Date: Sun, May 19, 2024 at 11:36 PM Subject: New Tournament To: Amir Ban @.>, Fons Bluemers @.>, Andres Valverde @.>, Duhamel Patrice < @.>, Richard Pijl @.>

STRIKE OF THE KOBRA

AMD Ryzen 5950x ChessGUI 256mb hash each where possible 6 piece tablebases Ponder off GBSelect2024.cgb book 12 minutes with 8 second increments. 4 cycles 36 rounds All engines 1CPU

Participants

Vengeance 3.0.0 64-bit Sirius 6.0 64-bit ice4 4.0 64-bit Deep Junior Yokohama 64-bit Dirty CUCUMBER 64-bit Crafty 25.6 64-bit Kobra 1.1 64-bit Cheese 3.2.1 64-bit The Baron 3.45 64-bit smol.cs 1.61 64-bit

Web based link for live viewing (courtesy of Jay - Berserk author). https://ccrl.live/16064

Alternatively, if you install TLCV (Tom's Live Chess Viewer) on your computer, you can watch the games live move by move. You'll also be able to chat to others following the tournament in the chatroom there. http://kirill-kryukov.com/chess/discuss ... p?id=42959 http://kirill-kryukov.com/chess/discussion-board/download/file.php?id=42959 Host - GrahamCCRL.dyndns.org Port - 16064 Linux users can use Livius: https://github.com/kmar/livius

There is also a Livius windows version. It has live pv boards as a nice addition. http://www.crabaware.com/livius/

[GrahamCCRL]

---------- Forwarded message --------- From: Graham Banks @.> Date: Mon, Jun 10, 2024 at 2:37 PM Subject: 109th Amateur Series Division 7 To: Krasimir Topchiyski @.>, < @.>, @.>, @.>, Duhamel Patrice @.>, Richard Pijl @.***>

109TH AMATEUR SERIES (Division 7)

AMD Ryzen 5950x ChessGUI 256mb hash each where possible 6 piece tablebases Ponder off GBSelect2024.cgb book 12 minutes with 8 second increments. 4 cycles 52 rounds All engines 1CPU (64-bit where available)

The top engine will be promoted and the bottom engine will be relegated. Any other changes of division will be at my discretion and may not necessarily involve playoff matches.

Participants

Simbelmyne 1.8.0 64-bit (promoted) Odonata 0.9.0 64-bit (promoted) Kobra 1.2 64-bit Bagatur 5.0 HCE 64-bit Ceibo 1.0 64-bit (relegated) Sirius 6.0 64-bit Francesca MAD 0.32 64-bit Lambergar 0.5.2 64-bit Vengeance 3.0.0 64-bit (relegated) Cheese 3.2.1 64-bit ice4 4.0 64-bit tomitankChess 5.1 64-bit The Baron 3.45 64-bit Cheers 0.3.0 64-bit (promoted)

Web based link for live viewing (courtesy of Jay - Berserk author). https://ccrl.live/16069

Alternatively, if you install TLCV (Tom's Live Chess Viewer) on your computer, you can watch the games live move by move. You'll also be able to chat to others following the tournament in the chatroom there. http://kirill-kryukov.com/chess/discuss ... p?id=42959 http://kirill-kryukov.com/chess/discussion-board/download/file.php?id=42959 Host - GrahamCCRL.dyndns.org Port - 16069 Linux users can use Livius: https://github.com/kmar/livius

There is also a Livius windows version. It has live pv boards as a nice addition. http://www.crabaware.com/livius/

[GrahamCCRL]

---------- Forwarded message --------- From: Graham Banks @.> Date: Thu, Jul 4, 2024 at 10:16 PM Subject: New Tournament To: Alex Brunetti @.>, Krasimir Topchiyski < @.>, Tom Hyer @.>

ROCKY FLIGHT

AMD Ryzen 5950x ChessGUI 256mb hash each where possible 6 piece tablebases Ponder off GBSelect2024.cgb book 12 minutes with 8 second increments. 4 cycles 44 rounds All engines 1CPU

Participants

Pedantic 1.1.0 64-bit Zangdar 2.29.01 64-bit Jet 1.2 64-bit Monty 1.0.0 64-bit Ynode 0134 64-bit Protej 0.6.6 64-bit Bagatur 5.1 64-bit Mida 2.3.1 64-bit Odonata 0.9.0 64-bit Roc 2.0 64-bit Kobra 1.2 64-bit Princhess 0.17.0 64-bit

Web based link for live viewing (courtesy of Jay - Berserk author). https://ccrl.live/16071

Alternatively, if you install TLCV (Tom's Live Chess Viewer) on your computer, you can watch the games live move by move. You'll also be able to chat to others following the tournament in the chatroom there. http://kirill-kryukov.com/chess/discuss ... p?id=42959 http://kirill-kryukov.com/chess/discussion-board/download/file.php?id=42959 Host - GrahamCCRL.dyndns.org Port - 16071 Linux users can use Livius: https://github.com/kmar/livius

There is also a Livius windows version. It has live pv boards as a nice addition. http://www.crabaware.com/livius/

[GrahamCCRL]

---------- Forwarded message --------- From: Graham Banks @.> Date: Thu, Jul 18, 2024 at 11:59 PM Subject: 110th Amateur Series Division 7 To: Andres Manzanares @.>, Vasik Rajlich < @.>, Duhamel Patrice @.>

110TH AMATEUR SERIES (Division 7)

AMD Ryzen 5950x ChessGUI 256mb hash each where possible 6 piece tablebases Ponder off IM_4mvs.cgb book 12 minutes with 8 second increments. 4 cycles 52 rounds All engines 1CPU (64-bit where available)

The top engine will be promoted and the bottom engine will be relegated. Any other changes of division will be at my discretion and may not necessarily involve playoff matches.

Participants

Atlas 4.35 64-bit (relegated) GOOB 1.8.9 64-bit Elixir 2.0 64-bit (promoted) Kobra 1.2 64-bit Integral v2 64-bit (relegated) 4ku 4.0 64-bit (relegated) Rybka 2.3.2a 64-bit (fill-in for Patricia as the latest version is too strong for D7) Monty 1.0.0 64-bit Ceibo 1.0 64-bit Vengeance 3.0.0 64-bit ice4 4.0 64-bit Cheese 3.2.1 64-bit tomitankChess 5.1 64-bit Inanis 1.3.0 64-bit (promoted)

Web based link for live viewing (courtesy of Jay - Berserk author). https://ccrl.live/16069

Alternatively, if you install TLCV (Tom's Live Chess Viewer) on your computer, you can watch the games live move by move. You'll also be able to chat to others following the tournament in the chatroom there. http://kirill-kryukov.com/chess/discuss ... p?id=42959 http://kirill-kryukov.com/chess/discussion-board/download/file.php?id=42959 Host - GrahamCCRL.dyndns.org Port - 16069 Linux users can use Livius: https://github.com/kmar/livius

There is also a Livius windows version. It has live pv boards as a nice addition. http://www.crabaware.com/livius/

[GrahamCCRL]

SISTER OF THE CLEANING LADY

AMD Ryzen 5950x ChessGUI 256mb hash each where possible 6 piece tablebases Ponder off GBSelect2024.cgb book 12 minutes with 8 second increments. 4 cycles 44 rounds All engines 1CPU

Participants

bitbit 1.2 64-bit Kobra 1.2 64-bit Cadie 1.8 64-bit Inanis 1.4.0 64-bit Wahoo 4.0 64-bit SmarThink 1.98 64-bit Simbelmyne 1.9.0 64-bit 4ku 5.0 64-bit Calvin 4.0.2 64-bit Elixir 2.0 64-bit Ares 3.0.3 64-bit Heimdall 0.4 64-bit

Web based link for live viewing (courtesy of Jay - Berserk author). https://ccrl.live/16071

Alternatively, if you install TLCV (Tom's Live Chess Viewer) on your computer, you can watch the games live move by move. You'll also be able to chat to others following the tournament in the chatroom there. http://kirill-kryukov.com/chess/discuss ... p?id=42959 http://kirill-kryukov.com/chess/discussion-board/download/file.php?id=42959 Host - GrahamCCRL.dyndns.org Port - 16071 Linux users can use Livius: https://github.com/kmar/livius

There is also a Livius windows version. It has live pv boards as a nice addition. http://www.crabaware.com/livius/

[GrahamCCRL]

CALVIN PLAYS DIRTY

AMD Ryzen 5950x ChessGUI 256mb hash each where possible 6 piece tablebases Ponder off GBSelect2024.cgb book 12 minutes with 8 second increments. 6 cycles 42 rounds All engines 1CPU

Participants

Kobra 1.2 64-bit Simbelmyne 1.9.0 64-bit 4ku 5.0 64-bit Calvin 4.0.2 64-bit ice4 5.0 64-bit Francesca MAD 0.32 64-bit Monty 1.0.0 64-bit Dirty Duna 64-bit

Web based link for live viewing (courtesy of Jay - Berserk author). https://ccrl.live/16067

Alternatively, if you install TLCV (Tom's Live Chess Viewer) on your computer, you can watch the games live move by move. You'll also be able to chat to others following the tournament in the chatroom there. http://kirill-kryukov.com/chess/discuss ... p?id=42959 http://kirill-kryukov.com/chess/discussion-board/download/file.php?id=42959 Host - GrahamCCRL.dyndns.org Port - 16067 Linux users can use Livius: https://github.com/kmar/livius

There is also a Livius windows version. It has live pv boards as a nice addition. http://www.crabaware.com/livius/

[jasper-sinclair]

Hello Graham, Thanks alot for the email notification. Unfortunately the link you specify  below (https://ccrl.live/16067) is instantly rerouted to https://ccrl.live/16066 some unnamed competition with very strong engines in which Kobra is not a participant.

Best Regards- Jasper

[AlexBrunetti]

Hello Graham, Thanks alot for the email notification. Unfortunately the link you specify  below (https://ccrl.live/16067) is instantly rerouted to https://ccrl.live/16066 some unnamed competition with very strong engines in which Kobra is not a participant.

Best Regards- Jasper

The tournament is already finished, http://kirill-kryukov.com/chess/discussion-board/viewtopic.php?t=17019

Alex

[jasper-sinclair]

Oh I see...thanks.👍

[GrahamCCRL]

---------- Forwarded message --------- From: Graham Banks @.> Date: Sat, Aug 31, 2024 at 5:28 PM Subject: 111th Amateur Series Division 7 To: Tom Hyer @.>, @.***>

111TH AMATEUR SERIES (Division 7)

AMD Ryzen 5950x ChessGUI 256mb hash each where possible 6 piece tablebases Ponder off GBSelect2024.cgb book 12 minutes with 8 second increments. 4 cycles 52 rounds All engines 1CPU

The top engine will be promoted and the bottom engine will be relegated. Any other changes of division will be at my discretion and may not necessarily involve playoff matches.

Participants

bitbit 1.2 64-bit (relegated) Kobra 1.2 64-bit Wahoo 4.0 64-bit (relegated) 4ku 5.0 64-bit Ceibo 1.0 64-bit Elixir 2.0 64-bit Francesca MAD 0.32 64-bit (promoted) Vengeance 3.0.0 64-bit (promoted) Roc 2.0.3 64-bit (relegated) Calvin 4.0.2 64-bit (promoted) Inanis 1.4.0 64-bit Monty 1.0.0 64-bit tomitankChess 5.1 64-bit ice4 5.0 64-bit

Web based link for live viewing (courtesy of Jay - Berserk author). https://ccrl.live/16065

Alternatively, if you install TLCV (Tom's Live Chess Viewer) on your computer, you can watch the games live move by move. You'll also be able to chat to others following the tournament in the chatroom there. http://kirill-kryukov.com/chess/discuss ... p?id=42959 http://kirill-kryukov.com/chess/discussion-board/download/file.php?id=42959 Host - GrahamCCRL.dyndns.org Port - 16065 Linux users can use Livius: https://github.com/kmar/livius

There is also a Livius windows version. It has live pv boards as a nice addition. http://www.crabaware.com/livius/

[GrahamCCRL]

THE FINAL FRONTIER

AMD Ryzen 5950x ChessGUI 256mb hash each where possible 6 piece tablebases Ponder off GBSelect2024.cgb book 12 minutes with 8 second increments. 4 cycles 44 rounds All engines 1CPU

Participants

Sirius 7.0 64-bit Zangdar 2.30 64-bit Ares 5.2.2 64-bit Princhess 0.18.0 64-bit Heimdall 1.0 64-bit Protej 0.6.7 64-bit Mida 2.3.1 64-bit Lambergar 0.6.0 64-bit Cadie 1.8 64-bit Roc 2.0.3 64-bit Calvin 4.1.0 64-bit Kobra 1.2 64-bit

Web based link for live viewing (courtesy of Jay - Berserk author). https://ccrl.live/16073

Alternatively, if you install TLCV (Tom's Live Chess Viewer) on your computer, you can watch the games live move by move. You'll also be able to chat to others following the tournament in the chatroom there. http://kirill-kryukov.com/chess/discuss ... p?id=42959 http://kirill-kryukov.com/chess/discussion-board/download/file.php?id=42959 Host - GrahamCCRL.dyndns.org Port - 16073 Linux users can use Livius: https://github.com/kmar/livius

There is also a Livius windows version. It has live pv boards as a nice addition. http://www.crabaware.com/livius/

[GrahamCCRL]

112TH AMATEUR SERIES (Division 7)

AMD Ryzen 5950x ChessGUI 256mb hash each where possible 6 piece tablebases Ponder off GBSelect2024.cgb book 12 minutes with 8 second increments. 4 cycles 52 rounds All engines 1CPU

The top engine will be promoted and the bottom engine will be relegated. Any other changes of division will be at my discretion and may not necessarily involve playoff matches.

Participants

Lambergar 0.6.0 64-bit (relegated) Mida 2.3.1 64-bit (relegated) Atlas 4.35 64-bit (relegated) Orion 1.0 64-bit (relegated) Lynx 1.7.0 64-bit (promoted) Roc 2.0.3 64-bit Heimdall 1.0.0 64-bit Kobra 1.2 64-bit Cheers 1.0.0 64-bit (dav) Wahoo 4.0 64-bit Arcanum 2.3.1 64-bit (promoted) Pingu 4.0.0 64-bit (promoted) Dirty Duna 64-bit (promoted) Ares (new version)

Web based link for live viewing (courtesy of Jay - Berserk author). https://ccrl.live/16065

Alternatively, if you install TLCV (Tom's Live Chess Viewer) on your computer, you can watch the games live move by move. You'll also be able to chat to others following the tournament in the chatroom there. http://kirill-kryukov.com/chess/discuss ... p?id=42959 http://kirill-kryukov.com/chess/discussion-board/download/file.php?id=42959 Host - GrahamCCRL.dyndns.org Port - 16065 Linux users can use Livius: https://github.com/kmar/livius

There is also a Livius windows version. It has live pv boards as a nice addition. http://www.crabaware.com/livius/