Quarry Stitch
Excavate one L, one square and one four-cell bar from the quarry. Each cut is available only once. Choose a cut, rotate it, and tap its TOP-LEFT anchor to fit the wall. Complete three rows; cleared rows settle the remaining stone downward. The footprint preview shows the exact held cut. Undo restores the last placement and its quarry supply. No timer or terminal loss.
Tap tiles, or use Tab and Enter. Arrow keys move board focus.
Challenge notes & source
No automatic defeat: this is a finite planning puzzle. Reset restores the seeded layout if a choice blocks progress.
A finite quarry inventory, rotation and reversible placement make exact stone packing the challenge.
Original compact interpretation, not a recreation. Source study: Quadrilla. No source code, music or artwork copied.