Deep Half Guard is a fundamental and strategic position in Brazilian Jiu-Jitsu (BJJ) that offers practitioners a unique way to control and sweep opponents. It is a versatile and effective guard variation that can be used both defensively and offensively.

In Deep Half Guard, the practitioner is underneath their opponent, with one of their legs entangled deeply between the opponent's legs, and the other leg hooking around the opponent's thigh. This position provides several advantages. First, it allows the person on the bottom to off-balance their opponent, making it difficult for them to maintain a strong base. Second, it offers numerous sweeping options, enabling the practitioner to reverse their opponent's position and end up in a top position.

One of the primary goals from Deep Half Guard is to sweep the opponent and move into a dominant position like the top half guard or side control. Sweeps from Deep Half Guard typically involve controlling the opponent's weight distribution and using leverage to tip them over. Common sweeps include the "Old School Sweep" and the "Kiss of the Dragon," each with its own unique mechanics.

Deep Half Guard is also known for its ability to frustrate and nullify an opponent's passing attempts. By controlling the opponent's leg and preventing them from passing to the side, the practitioner can buy time to set up their sweeps or submissions. Additionally, it offers options for transitioning to other guard variations or even taking the opponent's back if the opportunity arises.

Submissions are also a part of Deep Half Guard's arsenal, although they are less common than sweeps. Practitioners can look for opportunities to attack their opponent's legs or isolate arms for submissions like heel hooks or kimuras.

In summary, Deep Half Guard is a strategic and effective guard variation in Brazilian Jiu-Jitsu that provides control, sweeping options, and even submission opportunities. It requires a deep understanding of leverage and timing, making it a valuable addition to a BJJ practitioner's toolkit.