Kihon ippon kumite 基本一本組手
Basic one-step sparring
In plain words
One announced attack, one block, one counter. The attack and its level are known; the timing is not. Removing the rhythm of the multi-step exercises is what makes this the first genuinely difficult partner practice.
Purpose. Timing against an unknown moment, and the discipline of one decisive answer rather than a flurry. It is also where tai-sabaki starts to matter: stepping straight back works in gohon kumite and stops working here.
Where it leads. Leads to jiyu ippon kumite, which adds free-fighting distance, a moving guard, and an opponent who is looking for an opening.
How the exercise runs.
- Both partners face each other at the correct distance and bow.
- The attacker announces the attack and level, and settles into a ready stance.
- The attacker attacks when ready — not on a count.
- The defender blocks, moving off the line where appropriate, and counters decisively with control.
- Both reset; roles reverse after an agreed number of repetitions.
Partner work injures people when it is done carelessly.
- The counter is controlled and stops at the surface. This is the exercise where control is learned properly.
- The attacker commits genuinely. A half-hearted attack teaches the defender a defence against nothing.
- Neither partner adds a second technique. One attack, one answer, reset.
Common errors, and how to fix them.
Why it happens. Reading the attacker’s preparation, which is legitimate — but too early it becomes guessing.
The fix. The attacker should be able to change nothing; if the defender moves first, the attacker simply waits.
Why it happens. Treating the block as the goal.
The fix. Block and counter on consecutive beats, never as two separate exercises.
Why it happens. Habit inherited from the multi-step exercises.
The fix. Introduce angular movement deliberately; forbid straight-back retreat for a session.
Drills
- One attack, one block, one counter, both sides, at increasing speed.
- The same with the defender required to finish at an angle to the attacker rather than in front of them.
The Japanese, explained.
- Kihon ippon kumite 基本一本組手
- Basic one-step sparring. A single announced attack, blocked and countered. Everything is known except the timing, which is the whole exercise.
- Tai-sabaki 体捌き
- Body management. Moving the body off the line of an attack while staying close enough to answer it.
- Zanshin 残心
- Remaining mind, continued awareness. The alertness that continues after a technique has finished. A karateka who scores and then relaxes has demonstrated the absence of zanshin, and in competition it is judged as part of the technique rather than as an extra.