singlesingle
1×1 · 1 occupied cell
Screenshot beta with editable review: the core 8×8 rule is confirmed, while recognition coverage, piece refresh, and line-clear timing still need more device evidence.
Space planning
Shape dimensions matter because a large empty-cell count can still hide narrow or disconnected spaces that cannot accept the current fixed piece.
These presets come from production data and are grouped by family. Each card shows the exact fixed orientation, width × height, and occupied-cell count passed to the solver.
singlesingle
1×1 · 1 occupied cell
horizontal-2horizontal-2
2×1 · 2 occupied cells
vertical-2vertical-2
1×2 · 2 occupied cells
horizontal-3horizontal-3
3×1 · 3 occupied cells
vertical-3vertical-3
1×3 · 3 occupied cells
horizontal-4horizontal-4
4×1 · 4 occupied cells
vertical-4vertical-4
1×4 · 4 occupied cells
horizontal-5horizontal-5
5×1 · 5 occupied cells
vertical-5vertical-5
1×5 · 5 occupied cells
square-2square-2
2×2 · 4 occupied cells
square-3square-3
3×3 · 9 occupied cells
rectangle-2x3rectangle-2x3
3×2 · 6 occupied cells
rectangle-3x2rectangle-3x2
2×3 · 6 occupied cells
corner-top-leftcorner-top-left
2×2 · 3 occupied cells
corner-top-rightcorner-top-right
2×2 · 3 occupied cells
corner-bottom-leftcorner-bottom-left
2×2 · 3 occupied cells
corner-bottom-rightcorner-bottom-right
2×2 · 3 occupied cells
The solver does not rotate or reflect a piece automatically. Use the 5×5 custom editor when the current shape or orientation is not represented by a preset, then review the exact occupied cells before solving.
This is a provisional convenience list, not an official complete shape inventory. It makes no claim about production frequency, tray generation, rotation controls, or whether a future game version will use the same pieces.