Quick answer
Use a small placement sequence, choose a detonation tool, trigger the chain, and record which blocks react before scaling the experiment.
Start here when this is the exact player task you searched for. The sections below turn the question into steps, checks, and next pages.
Placement and observation checklist for a chain attempt. Step-by-step chain experiment. Qualitative chain experiment steps with timing and placement observation.
For TNT Voxel Playground chain TNT, use the quick answer first, then check whether the topic affects a code reward, event, item, unit, map, build, value, or upgrade path.