ChessKitt — AI-Powered Chess Board / Play Chess vs AI Platform Script

ChessKitt is a ready-to-launch chess SaaS where players face real AI models — GPT, Claude, Gemini, Grok and more — on a clean, modern board. Pick an opponent, choose a difficulty, and play; or sit back and watch AI vs AI. Built in plain PHP with no framework or build step, and shipping with subscriptions, daily quotas, and multi-gateway billing included.

Version: 1.0
Updated: July 10, 2026
For the latest updates and new features, see the changelog

Live Demo: https://chesskitt.com/

Play

• Play vs AI: full chess against any enabled AI model, with legal-move highlights and promotion.
• AI vs AI: pick two models and watch them battle in spectate mode.
• Difficulty Modes: Easy, Medium, and Hard control how hard the AI "thinks".
• Pick Your Side: play as White, Black, or random.
• Game Timer: optional clocks (3, 5, 10, 15, or 30 min) or untimed play.
• Move Sounds & Captures: sound effects, captured-piece tray, and live clocks.
• Board Themes: Forest, Ocean, Sunset, and Midnight.
• Guest Friendly: set up a game instantly; sign-in is asked only at the start.

AI Opponents

• 7 Providers: OpenAI ChatGPT, Anthropic Claude, Google Gemini, xAI Grok, DeepSeek, Moonshot Kimi, and Alibaba Qwen.
• Config-Driven Models: add, remove, reprice, or relabel any model from one config file — no code changes.
• Cost Saving: a built-in opening book and move cache serve common positions for 0 tokens.
• Reliable Moves: legal-move prompting, auto-retry, and a safe fallback keep games flowing.
• Usage Tracking: per-move tokens, cost, and latency logged for every request.

Games & Sharing

• My Games: browse past games with filters (vs AI, AI vs AI, finished, ongoing), search, and paging.
• Replay Viewer: step through recorded games with play, seek, and speed controls.
• Public Share Links: signed links let anyone watch a replay — no account needed.
• Auto Cleanup: stale, unfinished games are marked abandoned automatically.

Plans & Billing

• Subscriptions: Free, Pro, and Elite tiers with monthly and yearly pricing.
• Model Gating & Quotas: each plan unlocks its own models and daily AI-move limit.
• Gateways: Stripe and PayPal, with webhook verification.

Setup & Tech

• Zero-Config Database: runs on SQLite out of the box; MySQL/MariaDB optional.
• No Build Step: plain PHP, no framework, no Composer or Node required.
• Accounts: register, login, and profile editing built in.

• PHP 8.1 or newer with the common extensions (PDO, cURL, Mbstring, OpenSSL, JSON)
• SQLite (default, no setup) or MySQL/MariaDB
• Works on shared hosting, VPS, or any PHP host (Apache or Nginx)
• AI provider API key for AI opponents
• Stripe or PayPal account for paid plans (optional)

Full installation documentation is included with the product files. Please follow the included guide after download to install ChessKitt on your server.

If you have any questions before purchasing, feel free to ask in the support section. We are happy to help you understand if ChessKitt is the right fit for your project.

Basic free installation support is available after purchase. If you face an issue while installing the product on a server that meets the requirements, contact us with your purchase details and the needed server information, and we will help you check it.

After purchase, we also provide friendly support for reasonable product issues, setup questions, and general guidance.