# Chess4D **Source:** https://www.startuphub.ai/organizations/chess4d **Profile type:** Startup > Free 4D, 3D and 5D chess in your browser. No download, no sign-up. ## About Chess4D is a free browser chess site with three modes. 4D Chess lets you move pieces across a four-dimensional hypercube board, with legal-move markers and rules for how each piece moves in 4D. 3D Chess is standard 8x8 chess shown in a full 3D view: play against Stockfish, analyze moves, or play two-player on one device. 5D Chess is an experimental time-travel variant with branching timelines, local two-player play and replay. Tutorials and guided lessons cover all three modes. Everything runs in the browser in English or Chinese, with no download or account needed. There is no online matchmaking. ## Key facts - **Slug:** chess4d - **Website:** https://chess4d.net/ - **Operating status:** Active - **Sectors / tags:** Board Games, Strategy Games, Puzzle Games, Browser Games, Gaming ## StartupHub.ai scores - **Ahrefs DR:** 1/100 - **Effective DR:** 100/100 - **Agent Readiness:** D (58/100) - **Site Speed:** 66/100 - **Data Trust:** 53/100 ## Tech stack Detected on chess4d.net, last scanned 2026-10-19. - **Analytics:** Google Analytics 4 - **CMS / Builders:** Ghost - **CDN:** Cloudflare ## JSON-LD Structured data aligned with this page's `