New Picochess 4.3.3 released for testing

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Johan Sjöblom

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Jul 7, 2026, 6:49:07 AM (6 days ago) Jul 7
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Dirk and I have been testing a new version where you are able to learn from your mistakes and explore and analyse alternative moves either during or after a game. We now welcome more testers to join the testing. Below a small release note in 4 languages :-)

This version now remembers sideline variations detected by Tutor. You can chose to look at them, and you can also analyse them manually by going into explore mode or you can click on any PGN mode and ask the Web SHOW to analyse that position for you.

English

New in this branch: the web client has two new analysis/review helpers.

Lines shows or hides PGN side lines in the move list. Explore turns the web board into a temporary playground. Moves made there are not sent to PicoChess as real game moves.

You can click older PGN positions, open games from the GAMES tab, and use Web SHOW to analyse those positions. With Explore ON, Web SHOW will also analyse the moves you enter in Explore mode.

When playing with a real eboard, Explore is ON by default. The physical board remains the real game, while the web board is free for review and analysis.

When playing only on the web client, Explore must be turned ON explicitly. To continue the real game, use Explore OFF or the sync button. The sync button can turn amber as a hint that the web board should be synced first.

Español

Nuevo en esta rama: el cliente web tiene dos nuevas ayudas para análisis y revisión.

Lines muestra u oculta variantes PGN en la lista de jugadas. Explore convierte el tablero web en un espacio temporal de prueba. Las jugadas hechas ahí no se envían a PicoChess como jugadas reales de la partida.

Puedes hacer clic en posiciones anteriores del PGN, abrir partidas desde la pestaña GAMES, y usar Web SHOW para analizar esas posiciones. Con Explore ON, Web SHOW también analiza las jugadas que introduzcas en modo Explore.

Si juegas con un eboard real, Explore está ON por defecto. El tablero físico sigue siendo la partida real, mientras que el tablero web queda libre para revisar y analizar.

Si juegas solo desde el cliente web, debes activar Explore manualmente. Para volver a la partida real, usa Explore OFF o el botón de sync. El botón de sync puede ponerse ámbar como aviso de que primero conviene sincronizar el tablero web.

Italiano

Novità in questo branch: il client web ha due nuovi aiuti per analisi e revisione.

Lines mostra o nasconde le varianti PGN nella lista delle mosse. Explore trasforma la scacchiera web in un’area temporanea di prova. Le mosse fatte lì non vengono inviate a PicoChess come mosse reali della partita.

Puoi cliccare posizioni precedenti nel PGN, aprire partite dalla scheda GAMES, e usare Web SHOW per analizzare quelle posizioni. Con Explore ON, Web SHOW analizzerà anche le mosse inserite in modalità Explore.

Quando giochi con una vera eboard, Explore è ON di default. La scacchiera fisica resta la partita reale, mentre la scacchiera web è libera per revisione e analisi.

Quando giochi solo dal client web, Explore deve essere attivato manualmente. Per tornare alla partita reale, usa Explore OFF o il pulsante sync. Il pulsante sync può diventare ambra per indicare che prima conviene sincronizzare la scacchiera web.

Deutsch

Neu in diesem Branch: der Web-Client hat zwei neue Hilfen für Analyse und Nachspielen.

Lines zeigt oder versteckt PGN-Nebenvarianten in der Zugliste. Explore macht das Web-Brett zu einem temporären Spielplatz. Züge dort werden nicht als echte Partiezüge an PicoChess gesendet.

Du kannst ältere PGN-Stellungen anklicken, Partien im GAMES-Tab öffnen und diese Stellungen mit Web SHOW analysieren. Mit Explore ON analysiert Web SHOW auch die Züge, die du im Explore-Modus eingibst.

Wenn du mit einem echten eboard spielst, ist Explore standardmäßig ON. Das physische Brett bleibt die echte Partie, während das Web-Brett frei für Nachspielen und Analyse ist.

Wenn du nur mit dem Web-Client spielst, musst du Explore bewusst einschalten. Um zur echten Partie zurückzukehren, nutze Explore OFF oder den Sync-Button. Der Sync-Button kann bernsteinfarben werden, als Hinweis, dass das Web-Brett zuerst synchronisiert werden sollte.

Johan Sjöblom

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Jul 8, 2026, 3:43:20 PM (5 days ago) Jul 8
to PicoChess

Note: I found an error I had been looking for a long time.

Picochess 4.3.3 fixes a DGT eboard problem where Picochess could announce a computer move, but then sometimes not notice the move after it was played on the board. If you have seen games get stuck after carrying out the computer’s move on a DGT eboard, please test again with version 4.3.3.

Picochess 4.3.3 also improves the DGT board scan flow. You can now scan a position from a DGT eboard, change the side to move if needed, and continue playing from that position. This is useful when starting Picochess with a position already set up on the board. If it is the latest game, you can still load the latest game and continue from there, but board scan is useful if you forgot to save a game, or if you simply want to continue from any position already set up on the DGT board.

-- Johan

Alexander Rodriguez

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Jul 8, 2026, 3:56:43 PM (5 days ago) Jul 8
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Hi, I'm new to this group.
I have a Raspberry Pi 3B, my question is.
Which version is recommended for my motherboard?
Thank you in advance 

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Johan Sjöblom

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Jul 9, 2026, 6:05:16 AM (4 days ago) Jul 9
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The latest images built by Randy are to be found in this post:

Pi 3B might be tricky, not sure if it can run with the latest Raspbian operating system as we have put down a lot of work to make both Pi5 and Pi4 work. Pi3 is mostly used in the DGT Clock only.
I would chose Randy's lite image and use a mobile phone, tab, or laptop to open the web.

The settings to look out for on a Pi 3B in picochess.ini are:
If you are not on a DGT Pi clock, which does contain a 3B by default, make sure this line stays commented out. The dgtpi setting should only be used on a DGTPi clock.
#dgtpi = True

Sound and bluetooth might be challenging on a Pi3... This setting makes sure it uses the legacy sound system named "sox":
audio-backend = sox
#audio-backend = native

Depending on your technical skill you can also create a clean stock Pi3 image and then clone my repository and run the installer using the parameter "pi3". See the readme in the repo https://github.com/JohanSjoblom/picochess#

Not sure if I can help any more than this as we have not focused on Pi3 except for the DGT Pi clock

-- Johan
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