http://shotokankarateonline.com/uncategorized/shotokan-karate-kumite-simultaneous-block-strike-exercise/ Here is a kumite exercise working on simultaneous block and counter strikes with a fast strike immediately after the block and a take down on the fourth combination. The attacker punches with a left kizami zuki (jab punch), the defender blocks and strikes simultaneously, soto uke (outsideblock) and gyaku zuki (reverse punch). The blocking hand can be closed or open. As soon as the reverse punch lands, immediately use the blocking arm to Strike uraken uchi (back fist strike) to the side of the neck or jaw. The second combination has the same attack kizami zuki (jab punch), followed by the same defence outside forearm block reverse punch. This time the blocking arm immediately strikes tettsui (bottom fist), the third combination is exactly the same with kizami zuki (jab punch) and a simultaneous block and counter punch. But this time the blocking arm strikes with shuto uchi (knife hand strike). On the fourth and final combination the attacker attacks gyaku zuki jodan (reverse punch to the head), the Defender blocks uchi uke (inside block) with a left open hand or closed fist and counter at the same time with heito uchi (ridge hand strike) with the right hand. When Marcus performs these combinations fast, he adds a guillotine choke after the back fist, bottom fist and knife hand strike. Then on the fourth combination he executes a takedown, try and use the left leg strongly along with the left blocking arm, which slams into the top of the opponents chest of throat, at the same time kick the left leg back. This is a really good combination, working on speed striking and simultaneous block counters. ... https://www.youtube.com/watch?v=dYsqD6NNZ-g

This is for 4th kyu Karateka working towards 3rd Kyu Brown belt Uchi Ude Uke (inside forearm block) Kizami Zuki (lead arm punch) Gyaku Zuki (reverse punch) From a left Gedan Barai (downward block) 1. Extend the left arm forward, so the back of the fist is pointing up, arm straight and fist directly in front of the left shoulder. This can also be done with the hand open and fingers stretching forward. 2. At the same time the left arm stretches forward, the right fist slides across the stomache, towards the top of the left hip, with the palm of the right fist facing down. 3. Now bring the blocking right arm forward and across the center of the body. The blocking part of the arm, is the outside of the forearm, so as the blocking arm travels forward, keep the back of the right fist facing upwards, then rotate the forearm strongly so the back of the right fist is facing forward and palm of the blocking fist facing towards you. 4. As you perform number 3, pull the left hikite (pulling arm) strongly back. As the left hikite arm reaches the side of the body, finish the rotation strongly, by rotating the forearm and fist, so the fist finishes palm up, elbow pulling down slightly and with both shoulders square and relaxed. 5. Drive from the back leg, through the left hip and execute a right Kizami Zuki (lead arm punch) to jodan (upper level or head). Make sure you keep a good zenkutsu Dachi (front stance) and your hips and body are in the hanmi (side facing) position. 6. As soon as you land the kizami zuki, once again drive off of the back leg (left) through the hip, but this time rotate the hip and body into the Shomen (square facing) position and execute a Chudan (mid level or body) Gyaku Zuki (reverse punch). 7. Next repeat uchi uke on the left side. *For our 3rd kyu examination we require 2 sets moving forward and backwards slowly, then the same at full speed.* Uchi Ude Uke Top Tips When you block, think forward, not around! The blocking arm should travel in more of a straight line, from the side of the body above the hip, more of a direct line from start to finish, not a large sweeping arc. Remember, the blocking part of the arm, is the outside of the forearm, not the edge of the arm! In the finished blocking position, make sure you can tighten all of your arm muscles properly, if you cannot, your blocking arm will be to high, to far forward, or to far across the center of the body. Keep the shoulders relaxed throughout the combination. Many karateka refer to uchi ude uke as the shorter uchi uke, meaning just inside block. ... https://www.youtube.com/watch?v=S7Ej_b2CrMM