[lisper]

As an electrical engineer currently in the process of getting a dental implant, I would say it's definitely doable. But it would present a pretty serious packaging challenge, particularly the power supply.

[UPDATE] Turns out you can get dental implant hardware on eBay:

https://www.ebay.com/itm/272267166511

[InsomniacL]

In 1945 the Soviet Union gifted a wall hung artwork to the USA embassy which passively transmitted audio signal from the room with no power supply or active electronics.

https://en.wikipedia.org/wiki/The_Thing_(listening_device)

in the last 77 years, I imagine this type and similar technology will be much more miniaturised and effective.

[lisper]

> no power supply

No internal power supply. Very important distinction.

"The device, a passive cavity resonator, became active only when a radio signal of the correct frequency was sent to the device from an external transmitter."

But the Thing was a transmitter. A receiver could be entirely passive and very small. It could easily fit in a dental implant. (There have been reports of people hearing AM radio broadcasts through their fillings.) But the risk of detection would be very high.

[rowanG077]

Considering it only needs to be powered for a single match it seems very possible to me with over the counter components.

[lisper]

It's a pretty straightforward calculation, which I don't feel like doing right now. But I think Stockfish is going to be pretty power-hungry at the grandmaster level.

[bigyikes]

What about a wireless receiver instead?

I have some smart light switches in my house that don’t contain batteries and aren’t wired to mains. They’re powered purely by the force of pressing the switch. A bite-powered receiver might not even need batteries. Okay, maybe I’m getting too crazy?

[lisper]

A receiver that size is borderline trivial but extremely risky because the transmission could be detected.

[InsomniacL]

what about powerless?

https://en.wikipedia.org/wiki/The_Thing_(listening_device)

[CamperBob2]

I'd be thinking more "radio" than "computer."