Make rows and columns using four identical blocks in the puzzle game 7x7 Ultimate. Per turn, you can make one block move to any free cell in the grid, provided it doesn't have to jump over any other blocks to get there. However, for each move you make, a set of three to six new blocks will pop up. You'll have to use your moves wisely to keep the grid from fully cluttering up. If you run out of spaces to move your blocks to, your game will be over! Have fun!