Erase Line: Block Sudoku

Arrange and place blocks to form complete horizontal or vertical lines, which will wipe out all target blocks within the line. The game will end if you run out of space to place new blocks or have no valid moves remaining.

Game features:
- Core line elimination gameplay by stacking blocks into full rows or columns
- Automatic block clearance once a full horizontal/vertical line is formed
- Two losing conditions: no available placement space & zero remaining moves
- Simple block placement operation with strategic layout planning
- Light casual puzzle experience suitable for short leisure breaks