Use the mouse to control items
Chain Sums is a fun puzzle game unblocked. It is necessary for you to connect the right blocks. However, they must be linked properly. You should look at the target at the top of the screen before you act. It's possible to rotate items in Chain Sums free online until you find the appropriate direction to put them together. It also changes the position of the knob. Try to finish your job as soon as you can to prove your thinking ability! Good luck!