A true 3D browser cricket contest under the MCC Laws of Cricket (2017 Code 4th Edition - 2026): bat one innings and bowl the other against a ball whose raised seam trips the boundary layer on one side only, so it swings towards the seam below the critical speed and reverses above it. Swing fitted to wind-tunnel measurements from R. D. Mehta, NASA Ames (NTRS 20000112958); drag and bounce from R. Cross, University of Sydney. Leg before wicket implemented as all five clauses of Law 36.1 and proved exhaustively against an independent rule oracle. An independent reimplementation, not affiliated with Marylebone Cricket Club.

Every public app is built from a security-scanned skill and must pass a clean scan — skill and frontend — before it can be listed. Have a skill of your own? Turn it into an app — or read the step-by-step walkthrough.