Short It Out

Short-it-out is a Brain Training Game which expects player to connect all the marked blocks via the shortest route available. It presents M*N grid matrix, which has several blocks spread across the grids. Every time a level is opened, these blocks are randomly placed to make the game more interesting.
How to play :
Start from any of the block by holding and dragging it to connect it to any of the remaining coloured block.
Once 1st connection is made, the block to which the connection is made becomes active for next connection with any of the remaining blocks.
Continue the same process for connecting all the blocks.
While connecting, keep in mind that the lesser block you cross to connect all the coloured blocks, the better your score would be.