Report by Diana Lenk
Already 2 years ago I was allowed to experience this special event for the first time. I was all the more excited about what awaits us this year.André Bertel's Karate-Do
This site is based on my daily practice of Shotokan Karate-Do here in Oita City, Japan. More than anything else, unlike the majority of other karate websites, this page is primarily dedicated to Budo Karate training itself; that is, Karate-Do as a vehicle for holistic development.
Sunday, 22 March 2026
Freital, Germany Seminar 2026: PART TWO - Report in English
Saturday, 21 March 2026
Freital, Germany Seminar 2026: PART ONE - Report in German
Here's direct link to the seminar report in German. Many thanks to Diana Lenk for this report and Oliver Schomburg for the images. An English rendition will be coming soon.
© André Bertel. Oita City, Japan (2026).
Tuesday, 10 March 2026
Renshusei from France: Aude Giraudet
Aude Giraudet (5th Dan) from France returned as a Renshusei for second time.
Away from karate, it was also wonderful to catch up. Friendship through Karate-Dō is such a blessing.
Monday, 9 March 2026
Official DAN and qualifications Register.
The 国際空手道松濤館 (INTERNATIONAL KARATEDO SHOTOKAN) has an official DAN and qualifications Register.
If any verifications are required please email us: iksjapanhq@gmail.com
We can confirm all official IKS Japan Dan Grades and also Qualifications.
押忍!
André Bertel
Sunday, 1 March 2026
Renshusei from Lisbon, Portugal

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| At the remains of Funai Castle in central Oita City. |
A team of eight karateka from Lisbon, Portugal, came for two days of Renshusei Training.
Teotónio Alves
Manuel Fernandes
João Hala
Paulo Rocha
Filipe Alves
Bruno Gaspar
Bruno Batalha
Friday, 20 February 2026
Renshusei from Woltersdorf, Germany
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| February 16th-20th, 2026 Renshusei: Erik, Robin and Tino. |
Three karateka from Woltersdorf, Germany, came for training as 練習生 (Renshusei). Robin Zehbe (Godan), Tino Weichert (Sandan) and Erik Lewerenz (Shodan) from Nikko Dojo: https://www.nikko-dojo.de/
They diligently trained for two hours every day for a total of five days. Also, on one day we also did an additional two-hour training.
The focus of my teaching was on the fine details of Budo Karate. In particular, the correct use of energy and critical body mechanics; furthermore, ‘bujutsu no maai’.
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| The opening of Kakuyoku Shodan Kata. |
However, what I will say is that I was impressed by their enthusiasm and efforts over the days they were here as (Renshusei).
It was also great to see them improve their Kihon, Kata and Kumite as the sessions progressed.
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| Tekki Sandan Kata. |
In addition to time in the dojo, we also had a lot of good times. A big 'OSU' to Robin, Tino and Erik.
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| Teaching the opening of Maizuru Dai Kata. |
©︎ André Bertel. Oita City, Japan (2026).
Saturday, 7 February 2026
2026 Kapiti Coast, New Zealand (PART TWO): SEMINAR YOUTUBE VIDEO
We'd like to thank Allan Youl Sensei (4th Dan), chief instructor or KKA and head organizer; his fantastic team of instructors; his wife Brenda; all of the seminar attendees; and Denni Bryant for filming and providing this video footage.
Friday, 6 February 2026
2026 Kapiti Coast, New Zealand (PART ONE)
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The events were hosted by KKA Karate Academy:
www.kka.co.nz
Asai Sensei sometimes showed slight variation in the Koten-Gata for 'adaptive budo'. These variations are slight, such as trajectory change, different tachikata, etcetera. That being said, it makes these kata alive, and a wonderful bujutsu extension of standard Shotokan-Ryu.
In this regard, I taught Kakuyoku Sandan (with some subtle variations) at the 2018 Seminar in Halle, Germany. Here's a direct link to the overview of that event: https://youtu.be/DSQd8ApZxeU?si=kuLt75pY3MBOgBt0
Within the next day or two, I'll share a BRIEF REPORT about the seminar...
And also share some VIDEO FOOTAGE via YouTube. If you attended, I hope this will help review key points in the training!
Until then, when flying, I completed generic notes on Kakuyoku Sandan Kata, which (as promised) I've passed on to Allan Sensei to share with any seminar participants wishing to have them.
Tuesday, 27 January 2026
The 'TWO-TIERED' Approach
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| To supplement this article, the images are from my self-training today: January 27th, 2026. |
Before reading on, please keep in mind that this article is from a ‘positive perspective’; that is, not to bash western karate practitioners but, rather, to encourage the further lifting of technical standards. The information I’m about to present is ‘basic knowledge' here in Japan—amongst senior Japanese instructors (in all of the 'traditional styles')—for ‘physically understanding’ higher level karate movement and optimal application.
With these points in mind, I hope that this article will assist in this process and encourage deeper inquisition into traditional Japanese Budo Karate.
So, let’s begin!
A weakness for many karateka, which seriously limits their technical development, is not properly applying ‘the two-tiered approach’ in Kihon practice. Please allow me to expand on this point.
Each kihonwaza in Karatedo, and in Budo in general, has two forms: firstly, the standard form—that is, the precisely prescribed version; and, secondly, the specificly modified version—which utilizes ‘the standard form’ as a baseline, and is then optimally customized for the individual.
Before I explain this, I need to point out that an elite-level karateka needs both.
Now, from the baseline of standard technical form, which must be solidly mastered—the actual meaning of attaining the Shodan, one needs to alter each waza so it is optimal for oneself.
This includes tachikata, unsoku, uke, tsuki, keri, uchi, nagewaza, katamewaza, shimewaza, and so forth.
The specifically modified version of techniques is precisely why different masters appear different. This is due to differing physiques, strengths and weaknesses, etcetera.
For example, many people think that the certain way different Japanese karate experts is like some sort of karate gospel. What’s problematic for people’s technical development is when they ‘teach their modifications’ as ‘the only way’ or ‘the best way’. Another problem is when instructors restrict their students—above Shodan—from anything away from the standard form. Unfortunately, this is very common in many organizations.
This robotic, and ultimately, dogmatic approach to Kihon has particularly disadvantaged western karateka.
Consider a kihonwaza like jodan age-uke and think of couple of Shotokan legends. For example, my late mentor, Asai Tetsuhiko Sensei, and say, the late instructor, Enoeda Keinosuke Sensei.
Both men were born in same year; both lived and trained at Takushoku Daigaku; were primarily students of Nakayama Masatoshi Sensei; both did and graduated the JKA instructors' course together; both were both JKA Japan champions in the 1960s; both sent abroad to spread Shotokan karate; and both dedicated their lives to karate…
Yet their Kihon was very different. Why?
The answer is different body types, and different physical attributes such a speed, power and flexibility.
Asai Sensei was small but had disproportionately long reach for his stature. He was super-fast and highly elusive, and unbelievably flexible. But he lacked mass and muscular power.
Enoeda Sensei on the other hand was, compared to most Japanese men of his generation, a big relatively built fella, and was very extremely strong. He was also quick and flexible.
Clearly, these two contemporaries naturally moved in different ways; hence, their Kihon was different. Yes, both understood and had perfected ‘standard classical kihon’. Indeed, from this base, they adjusted their form for maximum effect.
When progressing in kyu one solidly perfects such set points. However, after attaining sufficient skill in the fundamental techniques, again—which is the benchmark to attaining Shodan—to maximize defensive and offensive actions, one must seek optimally effective Kihon.
Quite simple, the difference between karate master's is what makes them masterful. Moreover, it’s natural and it is the traditional way.
Many karateka do not understand this point, and as a result, greatly limit their karate skill.
This particularly is bad when people merely copy external actions as opposed to understanding what they are doing, and why are they doing it, then seeking optimal effectiveness with this in mind.
In sum, as a professional instructor I often find that people’s Kihon is more of a visual art, or athletic performance, as opposed to budo or bujutsu.
To use another example of a legend, I’ve seen many karateka externally copy Tanaka Masahiko Sensei’s kizami-geri. Often, they appear sharp, nonetheless, they merely possess the motion. Just by imitating the kick, one has not mastered it by any means. Yes, we need sharpness, but we also need, what I call ‘adaptive reliability’; that is to be able make the technique cause maximum damage, in any circumstances. This means reliable effective application against a non-compliant opponent or opponents.
Needless to say, making a technique one’s Tokui waza is a massive understating. This again highlights the importance of the two forms of Kihon.
After Shodan, beware of instructors who proclaim ‘one way’ for any waza. Such ‘tunnel view’ teaching has nothing to with real combat arts. Rather, it is a control method, which is not traditional. Such standardization after Shodan opposes the critical element of making techniques work for oneself.
To reiterate, the two-tiered approach in Kihon practice, only applies to those at Shodan and above.
Much like the kata passed down from Asai Sensei, first must have a strong base in the standard Shotokan kata; in particular, Heian, Tekki and at least one of the Senteigata.
Likewise, effective jiyu kumite requires a strong base in the various forms of yakusoku kumite. Keep in mind Nakayama Sensei’s words. He stated, “No matter how much something resembles karate, without kime, it is a mere imitation”.
Keep in mind, kihon and kata are for kumite; that is jissen-kumite. And Jissen-kumite for those who follow Karate-Do, is based on Funakoshi Gichin Sensei’s maxim: “Karatedo ni Sente Nashi”. There is no first attack in karatedo, thus, karate is only used for self-defense.
Self-defense is not merely a term, it can mean life or death, being seriously maimed, and legal implications. Therefore, it must not be treated lightly.
This is why our Kihon must be developed to be as effective as possible, which after Shodan intrinsically requires specific modifications to the standard base form.
I’d like to conclude my answer to this question by stressing the importance of Ichigeki-Hissatsu in budo karate. Many misunderstand this concept. The idea to kill the opponent with a single blow comes from Bushido, in particular, Nihon kenjutsu. We can still see this concept most vividly in contemporary Iaido.
In budo karate, to maximize our development, we must constantly aim to finish the opponent in each action. Aiming to achieve a killing blow at all times allows us to maximize seeking increase explosiveness, impact power, timing, distancing, adaptability and precision. Overall, without the constant aim of Ichigeki Hissatsu, we reduce our karate to a mere sport, where mediocrity is the norm, and achieving one’s maximum potential will be unattainable.
Taken as a whole, the two tiers of kihon and ichigeki hissatsu are critical aspects underpinning authentic budo karate. This is the Kihon and Shotokan karate we inherited from Asai Tetsuhiko Sensei and, indeed, the other students of Funakoshi Sensei and Nakayama Sensei.
押忍












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