T piece

Related terms

• T-spin →

  A T-piece placement recognized as a spin by the ruleset. Common modern detection requires a final rotation and three occupied diagonal corners around the pivot. Simply dropping T into a T-shaped gap is insufficient.

• Three-corner rule →

  A common T-spin test: at least three diagonal cells around the T's pivot are occupied, together with the required final rotation. Corner orientation and the kick used can determine full versus Mini classification.