How do I play East level 12 Sand Block?

I'm stuck on this one too. I've been playing for weeks. I've managed uncover one gold tile. Usually run out of moves.

I used the firecrackers to remove the 4 bricks down the centre. I used the blue tiles to remove the tiles next to the brown time tiles. Then it is a matter of luck to uncover the yin and yang. Took me many, many tries to at last get 1 medal and 39,865 points.

When East level 12, Sand Block begins, focus on uncovering the 4 sticks of dynamite as quickly as possible. Use the 1st stick of dynamite to blast away the center top brick block, and use a 2nd stick of dynamite to blast away the center bottom brick block, as the tiles beneath these 2 rows of brick blocks are deep, and this is where you will find the yin and yang tiles. Use the 3rd stick of dynamite to blast away the brick blocks on either the left or right side of a time tile located on the top center row where you just blasted away the top center brick block. Grab the time tile. Use the 4th stick of dynamite on the bottom row (left or right side, does not matter) and grab a second time tile. You will need the additional time to clear these deep stacks of tiles in these 2 rows to reach the yin and yang tiles beneath. As you uncover the blue tiles, use these to remove as many tiles as possible on these 2 rows to reach the yin and yang tiles quickly. Good luck!