A third strike is on its way before you have looked at what the first two did. Then a fourth. A fifth, smaller than the one before it. Your partner, who was covering up a second ago, has read the whole string, stepped off the line, and counters into the space your last punch left open. You did not lose on technique. You lost because the attack kept going after it had finished.
Section 01A Chain Is Built, Not Listed
A chain is not three techniques in a row. It is three decisions, each caused by the last.
Set strings in kihon (basics) lines and sanbon kumite (three-step sparring) build coordination and commitment. But a string rehearsed as a list teaches the hands to keep firing whether anything landed or not. A chain for kumite (sparring) works the other way round: start from what you want the opponent to do, then choose only what follows from that.
Three is the working limit here. By the third, you have spent real ground, real breath, and most of the surprise the opening bought. A fourth is rarely a new idea. It is the third one's momentum, or hope, wearing a technique's clothes. Longer combinations are thrown as a new chain after a reset, not as one chain leaking onward.
Section 02One: A First Technique That Genuinely Threatens
The first technique must be worth defending.
Kizami zuki works as an opener because a fast front-hand punch to the face line forces a response: guard up, head moved, or a step. Mae geri (front kick) works because a kick at the midsection cannot be ignored. An opener thrown at half intent fools nobody. If the partner need not answer it, they will not, and your second technique arrives against a settled guard.
Judge it by a hard test. Thrown on its own, at full commitment and controlled contact, would it score or drive the partner back? If not, it is not an opener yet. A chain does not rescue a weak first technique. It hides it for two beats, at closer range, a worse place to be found out.
The opener also sets the range. A jab from kick range arrives as a lean. A front kick from punch range arrives jammed. Neither earns a second link.
Section 03Two: An Answer to the Likeliest Defense
The second technique is not your next favorite. It is your answer to what the first one most often provokes.
Defenses are not infinite. A high jab most often brings the guard up, a parry across, or a step back. Guard up leaves the body slower to cover, which is where gyaku zuki chudan (reverse punch, middle level) earns its place in the jab and reverse family. A step straight back leaves the partner on a line they have shown you, suiting a stepping follow-up. A parry across moves one hand from the center, and the next punch should travel through the space it left.
Write it that way round: opener, likeliest defense, what it gives away, then the technique that takes it. If you cannot name the defense your second technique answers, you have no second link. You have two techniques sharing a taxi. Under pressure they will arrive separately.
Partners vary, so choose against the likeliest defense, not the only one, and drill against fed reactions before trusting the chain free. When the best answer is wrong, the lesson is the exit below.
Section 04Three: A Link That Has to Earn Its Place
The third exists only if the first two earned it: the opener threatened, the defense came, and the second landed or drove the partner onto a foot, a line, or a guard position the third can use. If the second was blocked cleanly and the partner is balanced and looking at you, the chain is over. A third thrown anyway is a gift of your extended arm and forward weight to a partner ready for both.
When the third is earned, it is usually short. After kizami zuki high and gyaku zuki to the body, a defender who folds around the body punch has brought the head line back into reach, and a compact uraken uchi (back-fist strike) can take it without a fresh step. After mae geri and a landing oi zuki (lunge punch), a partner retreating straight may walk onto gyaku zuki. A partner who angled off has already ended the chain for you. The third follows the body in front of you, not the plan in your head.
Ask one question before any third technique, until it becomes reflex: what did the second one just give me? A nameable answer means throw it. Silence means stop.
Section 05Where It Goes Wrong
Chains break in four repeatable ways, each visible from both chairs. A chain that ran too long announces itself, and spotting that is a defensive skill.
| Breaking point | From the attacker's chair | From the defender's chair |
|---|---|---|
| Over-committing past the third technique | Each extra strike comes from worse balance, with less hip and a lower guard than the one before | Strikes get smaller and closer together, feet stop resetting, and the counter window widens with each extra technique |
| Range drift | Each technique is thrown from the distance the last one left, never the distance it needs, so punches lean and kicks jam | The attacker leans to reach, the front foot stops advancing, and techniques land on the guard instead of past it |
| Telegraphing at one speed | Rehearsing the string at one pace wires the rhythm in, and free work plays it back exactly | A steady rhythm is a metronome you can time; step off on the third beat and counter the fourth |
| Built from favorite techniques | The chain holds the techniques the attacker likes best, in their best order, whether the defense called for them or not | The same second technique follows every opener, blocked or not; defend the opener once and you have read the chain |
Range drift is the quiet one. A punch that lands moves you. A blocked kick moves you the other way. The feet must solve the new distance before the hands fire again. Freeze after the second link and measure. If the third cannot reach without leaning, build a step in, or end at two.
One-speed rehearsal is the loud one. Left at a steady pace, it teaches everyone your third technique's timing before you throw it. Vary the gaps once the shapes are clean. Sometimes skip the third entirely.
Section 06Extend, Exit, or Admit It Was Over
Extend when the defense keeps giving: the partner retreats straight, covers rather than blocks cleanly, and each link lands or drives them onto the back foot. Finish the three, then reset. Do not start a fourth because the third felt good.
Exit when the picture stops changing: blocks clean, partner's weight set, later techniques landing on a guard that has solved them. Exiting is a technique too: covering hand, angled step off the line, guard up, range restored. Drill it as the final link.
Admit it was over one technique ago when you feel the push to throw one more to rescue the exchange. That feeling is data: the second link failed. Honest logs carry this entry often: chain recorded as three, should have been two and an exit. That line is what next month's training is built from.
Section 07The Companion Guide
The Chain-Building Workbook turns these rules into paper. It gives you two fully worked chains, the jab and reverse family and the kick and punch family, mapped against reaction trees, then blank worksheets with varied prompts so you map your own the same way. It carries breaking-point audits from both chairs, a defender's checklist for spotting a chain that ran too long, and a personal chain card for sparring logs and grading preparation.
- Build backward from the defense: opener, likeliest defense, what it gives away, then the technique that takes it.
- The first technique must threaten on its own. A chain cannot rescue an opener nobody has to answer.
- The second answers a defense, not a preference. If you cannot name the defense, there is no second link yet.
- The third is conditional. Throw it only when the first two earned it, and name what the second one gave you.
- Watch for over-committing past three, range drift, one-speed telegraphing, and favorite-technique chains.
- Exiting is a link. Drill it, and log the chains you should have cut at two.