Tangles take place when loops of line are trapped by various other loops. Such loops are often just like slip knots, because the knot vanishes when the caught lines are drawn out. The method, as a result, is to inspect if a loop is a trapped one, established through parallel lines going under a single line, and also drawing out the trapped loophole so the capturing lines can decipher entirely. Draw on a loophole and see where its continuation is, after that pull out the proceeding line to eliminate the trapped loophole.
Untangling such tangles can be frustrating, specifically if you don't know how or have little perseverance for those things. The simple escape is to merely remove the twisted mess and reconnect the lines along with a blood knot. Or cut into the middle of the clutter, pull out exactly what could be reconnected and discard the remainder. However you shed a length of line those ways, and you have a knot in the line that could hurt your hand when fighting a lively fish.