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Running a million-board chess MMO in a single process

Running a million-board chess MMO in a single process How One Million Chessboards works Jun 24, 2025 One Million Chessboards is a 1000x1000 grid of chess boards. Moving a piece moves it for everyone, instantly. There are no turns, and pieces can move between boards. Loading... making some moves In the 10 days after launch, over 150,000 players made over 15,000,000 moves and hundreds of millions of queries. The game runs out of a single process that I didn’t touch over those 10 days 1. 1 Once

Medieval preacher invoked chivalric hero as a meme in sermon

Medieval poet Geoffrey Chaucer twice made references to an early work featuring a Germanic mythological character named Wade. Only three lines survive, discovered buried in a sermon by a late 19th century scholar. There has been much debate over how to translate those fragments ever since, and whether the long-lost work was a monster-filled epic or a chivalric romance. Two Cambridge University scholars now say those lines have been "radically misunderstood" for 130 years, supplying their own tra

My favorite USB-C accessory just got even better with a built-in power meter - and it's only $20

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Zuckerberg Is So Desperate for AI Power That He's Building Temporary Data Centers in Tents

In his increasingly desperate bid to keep up in the ongoing AI race, Meta CEO Mark Zuckerberg is throwing out the rulebook in his quest to expand data center infrastructure as fast as possible. As SemiAnalysis first reported last week, Meta is "prioritizing speed above all else" by setting up "tents" to add additional capacity to its data center campuses. The prefabricated modules are designed from the ground up to get computing power online as fast as possible, underlining Meta's furious scra

'Click to Cancel' Is Dead. Here Are 3 Other Ways to Find and Cancel Unwanted Subscriptions

The Click to Cancel rule is supposed to make it as easy to cancel a subscription as it is to sign up for one. Viva Tung/Getty Images It's easy to rack up streaming subscriptions and other monthly services with just a few taps or clicks. Cancelling them, however, can be a bit trickier. The Federal Trade Commission's "click to cancel" rule would have made it easy to cancel unwanted subscriptions. However, this rule, was blocked by the US Eighth Circuit Court of Appeals on July 8, a week before i

Data Centers Are 'AI Factories.' Google and Meta Are Spending Big Bucks to Build Them

Tech giants Google and Meta have a lot riding on the growth and success of AI, and to support those efforts, they're also committing significant sums of money to build the data centers they're going to need to run that power-hungry technology. On Tuesday, Google announced that it plans to invest $25 billion in data centers and other AI infrastructure tied to the PJM Interconnection, the biggest electric grid in the US. The PJM Interconnection reaches across 13 states in the eastern half of the

The Chainsmokers’ Mantis Ventures closes $100M third fund

In Brief Mantis Ventures, the venture capital firm co-founded by Alex Pall and Drew Taggart of the electronic DJ group The Chainsmokers, has raised $100 million in commitments for its third fund. At $100 million, the firm’s newest fund is 25% larger than Mantis’s previous $80 million fund, a notable achievement at a time when many venture firms are struggling to maintain their existing fund sizes or secure new capital. Mantis has invested in B2B companies, such as cybersecurity firm Chainguar

US Government announces $200M Grok contract a week after 'MechaHitler'

A week after Elon Musk’s Grok dubbed itself “MechaHitler” and spewed antisemitic stereotypes, the US government has announced a new contract granting the chatbot’s creator, xAI, up to $200 million to modernize the Defense Department. xAI is one of several leading AI companies to receive the award, alongside Anthropic, Google, and OpenAI. But the timing of the announcement is striking given Grok’s recent high-profile spiral, which drew congressional ire and public pushback. The use of technology

Voxtral-Mini-3B-2507 – Open source speech understanding model

Voxtral Mini 1.0 (3B) - 2507 Voxtral Mini is an enhancement of Ministral 3B, incorporating state-of-the-art audio input capabilities while retaining best-in-class text performance. It excels at speech transcription, translation and audio understanding. Learn more about Voxtral in our blog post here. Key Features Voxtral builds upon Ministral-3B with powerful audio understanding capabilities. Dedicated transcription mode : Voxtral can operate in a pure speech transcription mode to maximize p

The Future of Social Security Looks Grim. 6 Tips to Help You Save for Retirement Now

Getty Images/Zooey Liao/CNET Social Security payments can help you fund part of your retirement -- but don't bank on it as your only source of income. The Social Security trust fund is expected to dry up by 2034, according to the Social Security Administration. That's one year sooner than initially forecast. While the fund won't vanish completely, it's estimated that you'll only receive 81% of your benefits, at best. Why? The fund has been running out of money for years, but President Donald

How to Watch Pokemon Presents 2025 for Legends: Z-A, TCG Pocket and More

It's that time again, trainers: Grab your Pokedex and get ready to catch some new pocket monsters, because we're about to hear everything about the latest developments in the world of Pokemon. The Pokemon Presents July 2025 stream is the first one since Pokemon Day in February. That stream ended up being pretty massive, featuring game announcements and content updates that we heard whispers about from GameFreak's infamous 2024 data breach. While we don't know what to expect this time around, i

Chinese firms rush for Nvidia chips as US prepares to lift ban

Chinese firms have begun rushing to order Nvidia's H20 AI chips as the company plans to resume sales to mainland China, Reuters reports. The chip giant expects to receive US government licenses soon so that it can restart shipments of the restricted processors just days after CEO Jensen Huang met with President Donald Trump, potentially generating $15 billion to $20 billion in additional revenue this year. Nvidia said in a statement that it is filing applications with the US government to resum

The Skylight Calendar is perfect for busy families, and easy enough for kids to use

ZDNET's key takeaways The 15-inch Skylight Calendar is a smart display for $320, with a 10-inch version available for $160. It's a touchscreen calendar designed with busy lifestyles in mind that allows for shared use within a household or team. Though it's proven indispensable for my family, I wish the chores, not just the events, were visible in the calendar view, and the 15-inch version is expensive at $320. $319.99 at Amazon Getting organized is a never-ending battle for me. As a self-proc

Underwriting Superintelligence

Insurance Unlocks Secure AI Progress We’re navigating a tightrope as Superintelligence nears. If the West slows down unilaterally, China could dominate the 21st century. If we accelerate recklessly, accidents will halt progress, as with nuclear power. Insurance, standards, and audits together create skin in the game for quantifying, communicating, and reducing AI risks so we can balance this tightrope. We call this the “Incentive Flywheel.” Benjamin Franklin first discovered the Incentive Fly

Uranus Leaks More Heat Than We Thought

When Voyager 2 flew past Uranus in 1986, the spacecraft detected a surprisingly low level of internal heat from the planet. Since then, scientists believed Uranus to be the odd one out in our solar system’s family of giant planets—the others being Jupiter, Saturn, and Neptune—who all tend to emit more heat than they absorb from sunlight. Now, a new study suggests that scientists may have had the wrong idea about Voyager 2’s data: Uranus does have an internal heat source similar to its planetary

Nvidia to resume China AI chip sales after Huang meets Trump

Chinese firms have begun rushing to order Nvidia's H20 AI chips as the company plans to resume sales to mainland China, Reuters reports. The chip giant expects to receive US government licenses soon so that it can restart shipments of the restricted processors just days after CEO Jensen Huang met with President Donald Trump, potentially generating $15 billion to $20 billion in additional revenue this year. Nvidia said in a statement that it is filing applications with the US government to resum

Never fear, reaction videos are still allowed under YouTube's new 'inauthentic content' policy

YouTube has clarified its rules about repetitious content and your favorite reaction video channel won't be impacted. Earlier this month, the platform said it would be changing its rules for monetization in an effort to address AI-generated materials, but didn't include many specifics, which led many to sound the alarm that reaction videos might get swept up in the new rules. The company has now provided a few tweaks and more clear delineations in its guidelines about channel monetization polici

Best note-taking tablets 2025: My hand-picked options for writing notes

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Adidas now offers a laced version of its 3D-printed shoes

is a senior reporter who’s been covering and reviewing the latest gadgets and tech since 2006, but has loved all things electronic since he was a kid. Adidas has released a new variant of its 3D-printed Climacool shoes with laces so you can adjust their fit and potentially tone down how tightly they hug your feet. Featuring a breathable lattice structure created through an additive printing process, the shoes have previously only been available as slip-ons in a single off-white colorway, but no

The new 8BitDo Pro 3 gamepad is open for pre-order now

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . With so many different handheld gaming devices entering the market, having a flexible gamepad that works with many different hardware platforms can be a valuable addition to your gear collection. A promising new option arrived today with the pre-order announcement of the 8BitDo Pro 3 .

Mistralai/Voxtral-Mini-3B-2507 · Hugging Face

Voxtral Mini 1.0 (3B) - 2507 Voxtral Mini is an enhancement of Ministral 3B, incorporating state-of-the-art audio input capabilities while retaining best-in-class text performance. It excels at speech transcription, translation and audio understanding. Learn more about Voxtral in our blog post here. Key Features Voxtral builds upon Ministral-3B with powerful audio understanding capabilities. Dedicated transcription mode : Voxtral can operate in a pure speech transcription mode to maximize p

Meta announces new data centers, gobble up millions of gallons of water per day

CEO Mark Zuckerberg said the company plans on investing "hundreds of billions of dollars" to power AI. Meta is building several gigawatt-sized data centers to power AI, as reported by Bloomberg . CEO Mark Zuckerberg says the company will spend "hundreds of billions of dollars" to accomplish this feat, with an aim of creating "superintelligence." The term typically refers to artificial general intelligence (AGI), which describes AI systems that boast human-level intelligence across multiple dom

We Can’t Get Enough of Jimmy Olsen in ‘Superman’

“What is going on with Jimmy Olsen?” I recently asked the stars of Superman. “What is it about that guy?” “He’s got rizz,” replied Rachel Brosnahan, who plays Olsen’s fellow reporter Lois Lane. “This is a true fact about Skyler Gisondo,” Clark Kent himself, David Corenswet, added about the Olsen actor. “Which I hope is appropriate to share. Sorry, Skyler… His testosterone is through the roof. Off the charts. True story. So of course, who is surprised that his Jimmy Olsen is pulling the kind of g

AV startup Pronto.ai acquires off-road autonomous vehicle rival SafeAI

The Venn diagram of engineers that know a little bit about AI, self driving, and mining has a small intersection. Pronto.ai CEO Anthony Levandowski wants as many of those people as possible. And an acquisition is helping him achieve that goal. The San Francisco-based startup, which has developed a self-driving system designed for haulage trucks and other off-road vehicles used at construction and mining sites, has acquired competitor Safe AI, TechCrunch has learned. Terms of the deal have not

Forget passwords often? Android may soon let you disable Failed Authentication Lock (APK teardown)

Mishaal Rahman / Android Authority TL;DR Android 15 and newer devices include a Failed Authentication Lock feature that locks the device screen after detecting multiple failed login attempts in apps or settings. Unlike other theft protection features, this feature is enabled by default on all devices, and there’s currently no way for users to turn it off. Google may soon add a new option to the theft protection settings that will allow users to turn off Failed Authentication Lock. In additio

I tested Dyson's pricey flagship headphones and they're better than I expected

Jada Jones/ZDNET ZDNET's key takeaways The Dyson OnTrac headphones Impressive sound, adequate noise-canceling, and innovative design choices define the OnTrac headphones. Dyson could spend more time refining these headphones' physical controls, as they can be finicky and unreliable. Who says the same company that made your vacuum cleaner and hairdryer can't make your headphones? I'm unsure if anyone has ever said that, but Dyson definitely didn't. That's right -- the company responsible

I replaced my MacBook Pro with the M3 iPad Air - and I might never go back

ZDNET's key takeaways The 2025 iPad Air is available in an 11-inch model starting at $600 and a 13-inch model starting at $800. The latest iPad Air features Apple Intelligence, an M3 processor, and some of the best performance I've seen on an iPad to date. But the iPad Air gets expensive quickly, with the 13-inch model selling for as much as $1,300. View now at Amazon View now at Best Buy more buying choices I've grown rather attached to my work MacBook Pro. I use it every day, take it with m

Nearly 3 out of 4 Oracle Java users say they've been audited in the past 3 years

A survey of 500 IT asset managers in organizations that use Oracle Java has found that 73 percent have been audited in the last three years. Deal to 'save' UK colleges £45M in Oracle Java licensing fees followed audit requests READ MORE At the same time, nearly eight out of 10 Oracle Java users said they had migrated, or planned to shift, to open source Java to try to avoid the risk and high costs of the dominant vendor's development and runtime environments. Oracle introduced a paid subscrip