Last updated: May 2026
Blackbox Chess provides engine-driven chess analysis reports, personalized training drills, and AI-generated opening videos based on game data you provide or authorize us to fetch from Chess.com or Lichess. By using Blackbox Chess you agree to these terms.
Reports are generated using Stockfish engine analysis and are informational only. They do not constitute professional chess coaching advice. Improvement in your chess play depends on your own study and practice. We do not guarantee any specific improvement outcome.
Opening videos are personalized chess tutorial videos generated from your game data using AI tools including Google Gemini (script), Microsoft Edge TTS (voiceover), and OpenAI Whisper (timecode alignment). The script and voiceover are AI-generated. They are reviewed for accuracy but we do not guarantee they are free of errors. Videos are rendered via AWS Lambda and delivered to you via a time-limited download link.
Download links expire 48 hours after delivery. You are responsible for saving your video before the link expires. We are not obligated to re-render or re-deliver a video after the link has expired, though we may do so at our discretion.
Videos are personalized to you and are non-transferable.
By purchasing an opening video, you consent to Blackbox Chess posting your video to its social media accounts, which may include Facebook, Instagram, TikTok, and YouTube. This consent is a condition of purchase and cannot be withdrawn after the video has been posted.
At checkout, you may choose whether your chess username is displayed in the video or anonymized. This is the only customization available for social posting. You do not have the right to approve, reject, or request removal of the video once it has been posted to a social platform.
Videos posted to social platforms are subject to those platforms' own community guidelines and content policies. Blackbox Chess is not responsible for the removal, demotion, or restriction of any video by a social platform. In particular, content posted via the TikTok API is subject to TikTok's Community Guidelines and may be removed or restricted by TikTok independently of any action by Blackbox Chess.
Opening video scripts and voiceovers are generated by artificial intelligence tools. All videos posted to social media platforms include the platform's required AI content disclosure label where applicable. You acknowledge that the content is AI-generated and not produced by a human chess instructor.
All purchases are final. No refunds are issued under any circumstances. This includes analysis reports, opening videos, and any future products or add-ons offered through Blackbox Chess. By completing a purchase you acknowledge and agree to this no-refund policy.
Payments are processed by Stripe. Blackbox Chess does not store your payment card details.
You are responsible for the accuracy of any chess username or game data you provide. You must have the right to share any PGN files you upload. We do not claim ownership of your game data. By using the service you grant Blackbox Chess a license to process your game data to provide the analysis, drill, and video services described above.
The service is provided as-is. We make no guarantees of uptime, accuracy, or fitness for any particular purpose. Engine analysis reflects Stockfish's evaluation at a given depth and may differ from other engines or human assessment.
Do not attempt to disrupt, scrape, overload, or reverse-engineer the service. Do not submit fraudulent payment information or attempt to obtain reports or videos without valid payment. We may terminate access for any user who violates these terms.
We may update these terms from time to time. Continued use of the service after changes are posted constitutes acceptance of the updated terms. The date at the top of this page reflects when the terms were last updated.
Questions: blackboxchess@gmail.com