ConnectBlockPuzzle lite

ConnectBlockPuzzle is a tying puzzle.

Because the block that becomes a nucleus goes out first of all, the block of the same color as it is connected fast.
A connected block disappears when the tying thing is neglected or the borderline is exceeded.

A white block that comes out uncommonly is a special block.
All blocks right above the block and blocks of the same color are erased.
Let's effectively use it.