|  Unlike Ssangsoo Gumbup, Woesoo Gumbup (one-handed style) uses only one hand in attacking and blocking, having the sword on right hand and the scabbard on left hand.
As it is not using both hands, this style of sword techniques needs speed and quick turning, gathering, and distributing power of the body. Speedy block, attack and steps to the four cardinal points are the core points of this style. In this type of sword art, a lighter sword is used accordingly.
There are two main styles in this one-handed style sword art of Haedong Gumdo - Sunbang Gumbup and Sungong Gumbup. Sunbang Gumbup
 The word 'Sunbang' means 'defense first'. Thus, most of this style start with protecting techniques. But the protecting techniques are followed by prompt attack - normally stabbing and cutting.There are three types of block - Sangdan (upper), Joongdan (middle) and Hadan (lower) - Sangdan Bang uh (Bang uh = blocking) is to protect the head area and Joongdan Bang uh is to protect the upper body while Hadan Bang uh is for the protection of the lower body. For Woesoo Gumbup uses only one hand, it need a lot of repeating exercise.
Repeated exercise of this block makes your body more securely protected and be ready for the next level - Sungong Gumbup. One-handed style is not taught to beginner level students. Black belt students start to learn this style. Since this style has 20 numbers, most of the numbers seem so similar and confusing that students who learn this style have to practice them for a long period of time. Sungong Gumbup
While Sunbang Gumbup is 'defense first' style, Sungong Gumbup is 'attack first' style. The meaning of the word 'Sungong' is 'attack first'.
Prior to Sungong Gumbup practice, you need a lot of Sunbang Gumbup exercise as Sungong techniques need more of right position, stance and proper distribution of power. Sungong Gumbup is taught to 4th Dan black belts or higher levels and has 16 numbers. | 
