Flexagon Défence (Français)

(c) Felix Shardlow v.0.97 28/04/2015 – translated by Florian Gailliegue

Followed by:
Advanced Flex Part I: Counter-Strategies
Advanced Flex Part II: Communication

Intro

La Flexagon appréhende la défense sous un nouvel angle, en combinant des éléments de défense individuelle et de défense de zone. La Flex n’est ni une « indiv » ni une « zone », c’est un hybride avec ses propres règles et principes. À l’ultimate, l’attaque a l’avantage, et prendre l’ascendant en défense requiert une combinaison d’athlétisme, de positionnement et de travail d’équipe. La défense individuelle est orientée vers l’athlétisme et la zone sur le positionnement, la Flexagon quant à elle met l’accent sur le travail d’équipe avant de capitaliser sur tout mouvement ou positionnement inefficace de l’équipe en attaque

Les 3 Principes Flex

  • Communiquer
    • Eye contact – rester en alerte
    • Utiliser des gestes
    • Utiliser des mots
  • Switcher / Encadrer avec un partenaire lorsqu’approprié
    • Être prêt à changer de marque (switcher) – anticiper les déplacements de l’attaque si possible
    • Ne jamais laisser le joueur sur lequel vous défendez sauf avec la certitude qu’il sera couvert, et si vous savez sur qui vous devrez défendre dorénavant
    • Encadrer (« sandwicher ») des joueurs près l’un de l’autre
  • Couvrir tous les attaquants en équipe
    • Chaque défenseur doit marquer un joueur spécifique sauf si encadrement (ne pas défendre un espace ou une position)
    • Ne pas laisser d’attaquant non défendu
    • Recevoir de l’aide si vous essayer de défendre plusieurs joueurs
    • Éviter les surnombres défensifs

 

Positionnement

flex1

Les positions sont grandement flexibles parce que largement dépendantes des positions prises par les attaquants, cependant la structure sous-jacente peut être décrite comme un 2-3-2.

  • 2 forwards (avants)
  • 2 wings (ailiers)
  • 2 backs (arrières)
  • 1 hat (joueur central)

Les termes de « forward » et « back » font référence au sens dans lequel vous voyez le terrain avant un point; les « forwards » sont comparables à des « défenseurs de handlers », et les « back » à des « deeps sur une défense de zone »

Les positions peuvent et devraient changer durant une possession ; fréquemment il est plus logique pour un défenseur de suivre sa marque tandis qu’il se déplace sur le terrain plutôt que de switcher ; les autres défenseurs doivent s’ajuster en fonction. Un défenseur peut débuter un point en tant que « back » et finir « forward » en passant par « hat ». Respecter les principes rend ces changements de postes dynamiques possibles.

Si l’attaque adopte une formation 3-4 alors la Flex ressemblera aussi à une formation 3-4 ; plus à ce sujet dans « Advanced Flex Part I: Counter-Strategies ».

La force, si le disque est près du milieu alors la force est « middle », si le disque est près d’une sideline alors la force est « line », ça laisse des joueurs de chaque côté de la force dans les deux situations. Ce n’est pas systématiquement un « forward » qui place la force, quand le disque est près d’une ligne il est plus probable qu’un « wing » s’en occupe, selon les positions occupées par les joueurs sur le terrain.

Switcher / Sandwicher

Quand les attaquants sont proches les uns des autres, ils ne sont pas positionnés efficacement, et la défense se doit de punir cela en les encadrant (“sandwitchant”) tout en Assurant d’être autant de défenseurs qu’il y a d’attaquants. Si au contraire les attaquants sont répartis sur le terrain en utilisant l’espace à leur disposition, une défense serrée est plus adaptée. Il ne faut pas tenter de sandwicher.

Lorsque des attaquants se déplacent l’un vers l’autre ou vers les défenseurs, la défense doit punir ces mouvements inefficaces en switchant leur marque. Cela conserve l’énergie et créer des opportunités de block puisque le défenseur arrivera d’un angle inattendu. Si les attaquants se déplacent vers un espace il n’est pas conseillé de switcher.


Pour aller plus loin

Des articles sur la Flex avancée son ten train d’être publié;
Advanced Flex Part I: Counter-Strategies
Advanced Flex Part II: Communication

Vous souhaitez des vidéos montrant la Flex en action, ou des explications orales et autres? Restez informez en souscrivant à Hexagon Ultimate YouTube channel.

La Flex en action face à FWD aux championnats européens – avancez jusqu’à 37:48:

GB Mixed U23’s utilisa cette défense aux mondiaux 2015, plus de vidéos de Felix expliquant la Flex à l’équipe seront uploadées sur la chaine Hexagon Ultimate sous peu (en dessous une vidéo de la première fois que cette défense a été présentée à l’équipe).

La Hex/Flex en action contre le Japon aux mondiaux:

Advanced Flex – Part II: Communication

(c) Felix Shardlow v.0.1 4th May 2016

Also available in French / en Français

Good communication within a team is essential for good teamwork, combined with trust in your team mates communications. When you receive communication from a team mate, you should immediately act on it, and then re-assess the situation. Very rarely should communication from a team mate be assessed before being put into action.

Communication should be near-constant during a point of Flex. If any of the principles are being disobeyed then there should be a lot of noise on the field – if an offensive player is unmarked, all defenders should know about it and be working together constantly to remedy the situation.

The 3 ways to communicate in Flex

  • Eye-contact – opens the channel of communication between two defenders
  • Gesticulation – directs attention to a particular area or person
  • Vocalisation – gives detailed information or instructions

Eye-contact between defenders should happen whenever they have the opportunity – usually when their marks are not moving and they are re-assessing the situation. A moment of eye-contact has multiple immediate benefits:

  1. Communication channel is opened. If there is anything you or your team mate wish to communicate to each other, you have each others attention so are able to do so, through facial expressions, gesticulation, or vocalisation. A neutral look saying “everything is OK” is useful in itself.
  2. Each defender gets knowledge of their teammate’s position, and the position of their teammate’s mark. They also know that their teammate is aware of their situation – which opens up the opportunity for switches or sandwiches.
  3. Defenders are put “on the same page”. The chance for miscommunication is minimised, and a good base for teamwork is established.

Gesticulation conveys more specific information, and can be recognised by many defenders at the same time. Usually the meaning of any gesticulation is self-explanatory – here are some examples:

  1. Pointing to an offence player or players – depending on the context, this can either mean you are marking them, or that your team mate should mark them. Pointing to two or three players (by using two or three fingers) is a quick way of initiating a sandwich with a team mate.
  2. Open-hand gesturing can be used to indicate what area you are covering in a ‘sandwiching’ situation, and to move defending team mates around to improve coverage.

Vocalisation is the most flexible form of communication, and can be reach all defenders within earshot. Any information conveyed vocally also carries with it information about where on the field the shout is coming from, and the tone / volume of the shout indicates the level of urgency. Shouts should be accompanied by pointing, to give more specific information to team mates who have you in their field of view, or who turn to look when they hear the shout. Here are some shouts which have proved to be useful in Flex:

  • Push – used to move nearby defenders away from you. This is useful when you realise you are both covering the same space, or when you see an unmarked offensive player the other side of a team mate. When you hear “Push”, you should initially move directly away from where the voice came from, before reassessing the situation. Example animation here.
  • Pull – the opposite to ‘Push’, use “Pull” when you want defenders to come towards you, or to an area near you. This is useful when you find yourself covering two or more players, or when you can see an unmarked offensive player nearby. When you hear “Pull”, you should initially move towards where the voice came from, before reassessing the situation. Example animation here.
  • Switch – also used in person defence, a ‘switch’ call is used when two defenders wish to swap their marks. Switches are best called by the player whose new mark is the option the thrower is looking at, and (as according to the principles), should only be called when you know (a) who your new mark will be, and (b) that your old mark will be covered.
  • Sandwich – used when offensive players are stood in close proximity to one another, and the defenders wish to take advantage of the inefficiency and ‘surround’ the opposition. Sandwiches can involve any number of defenders, but should always involve an equal number of offensive players– 2v2, 3v3, 4v4 etc. In Mixed, sandwiches should usually be gender-specific, so surrounding a vertical stack should effectively be looked at as 2v2 & 3v3, rather than 5v5.
  • Left/right – can be used to move a team mate when you are out of their line of sight. If a team mate has their back to you, your left is their left, so directing them with left/right shouts is relatively straightforward. When they are facing you, gesticulation is more effective.
  • “I’m here” – can be used to notify your nearby team mates of your presence – particularly useful if you have just followed your mark across the field without switching, and wish to let new nearby team mates of the opportunity to use teamwork.

Sideline

There are a number of ways the sideline can help Flex greatly:

  1. Up shouts for every pass. The length and tone of the “Up” shout can help convey the type of pass made. This is very useful for players who aren’t in a position to actually see the pass being made – it lets them know the angle of attack is changing, the stall count is resetting (see Advanced Flex Part IV: The Stall-3 Game Changer), and that the disc is momentarily in the air so an immediate throw is not possible.
  2. Any defensive mis-positioning – identify and alert players to any situations where a defender is not marking a specific player, marking two players, or when there is a free offensive player on the field.
  3. The thrower’s focus – let the defender nearest to where the thrower is focusing their attention know that the thrower is looking, so they can be extra vigilant.
  4. High stall counts – lots of noise & “here it comes” from the sideline to let defenders know a pass is coming very soon, so they should tighten up to their mark and be ready for the unexpected.

Part of a series:
Flexagon Defence
Advanced Flex Part I: Counter-Strategies
Advanced Flex Part II: Communication
Advanced Flex Part III: The Stall 3 Game-Changer

 

Felix going to Macedonia

Felix will be flying to Macedonia on 3rd-12th May 2016, to run a few workshops with teachers / students, and several sessions in high schools in Skopje, under a program put together between 10milliondiscs.org and the US Embassy in Macedonia. The Ultimate scene is just beginning over there, so Felix will be bringing over some discs and talking to players, coaches and organisers about how to play, how to coach, and how to set up sustainable systems for Ultimate clubs, leagues, and tournaments in the country. He’ll also be discussing his experiences in the UK University scene, and what can be used from these to build a scene in Macedonia!

Mixed Tour 2 2016

Videos from Mixed Tour 2 2016 are up, including the FINAL between JR and Brighton Breezy – follow ‘Videos -> FelixUltimate YouTube’ through the menus.

Uni Nationals 2016 Footage online

Push Pass have just published 18 games from Uni Nationals 2016 online, follow the Push Pass Videos link in our menu.

Advanced Flex – Part I: Counter-Strategies

Also available in French / en Français

Flex vs Vertical Stack

flex v verticalIf the opponents create a vertical stack, you should surround the stack as illustrated – this is also called the ‘scramble’ position (although in ‘scramble’, you usually transition to man-to-man defence after 1 pass).

Whichever offensive player runs towards your area, you mark tightly, and the other defenders reposition to account for the fact you’re now occupied. The 5 players guarding the stack are basically playing a 5v5 game against the players in the stack, where they cannot allow a player to be unmarked when in space or moving towards it. If a player cuts far out of the stack (‘running through the poach’) then it becomes 4v4, and so on, until it’s clear who everybody’s mark is and we’re back to playing regular Flex, looking for switches.

In Mixed, the players marking the stack should be gender-specific, e.g. it’s a 3v3 women’s matchup and a 2v2 men’s matchup. If a woman cuts out and takes a mark, it becomes 2v2 & 2v2. Keeping track of the number of players helps avoid double coverage & unnecessary poaching which might leave a player free.

Flex vs Horizontal Stack

Against a horizontal stack, you should start tight to your mark, and look for switches after the first cuts are made. As any of the four cutting players can go deep initially, they must be marked honestly. Trying to have a deep & under poach when the disc is in the middle of the field does not work, as it leaves somebody in too much space – causing the defence to break down.

flex v horizontalWhen setting up, one wing player must push up to mark the third handler – the wing player on the break side. Make this move early so it’s clear to the back/hat players who you are marking. The side cutter on the break side is marked by a ‘back’ player, the side cutter on the open side is marked by the other ‘wing’ player, which leaves the two in the middle (the ‘active pair’ when the disc is in the middle).

The back & hat players in the middle should mark their man honestly at first, as they don’t know whether they will go deep or come under, and it’s too easy to split the hat if we try to mark zonally. After the active middle pair make their first cut, the two defenders can get their heads up and have a look to see if they can switch. One defender will be ‘under’ – they can become the ‘hat’ – and the other will be ‘deep’ – they can become a ‘back’ player.

Flex vs Stack in the endzone

antWhen the opponents transition into a vertical stack in the end zone, you should stay in Flex to stifle the space and generate confusion & chaos. The ‘Ant’ defence is particularly useful against a static start – if there has been a timeout after a huck caught just outside the end zone, for example.

The force is straight up, and the remaining players surround the stack, picking up marks as they run towards them, and adjusting each time a defending team mate becomes occupied with a mark – like Flex vs Vert.

The ‘forward’ player marking the reset can also choose to leave them and join the ‘ant’ formation – which would give it six legs. If the person with the disc is a weaker thrower, the reset should be marked.

In the video below, Felix talks about the roles of each position in Flex before talking about Flex vs Vert stack (11:48) and Flex vs Horizontal stack (15:10):

Part of a series:
Flexagon Defence
Advanced Flex Part I: Counter-Strategies
Advanced Flex Part II: Communication
Advanced Flex Part III: The Stall 3 Game-Changer

Mixed Tour 1 2016

Videos are available on the YouTube channel

mt12016youtube

Technical analysis – Karlinsky’s 6 seconds leading up to a scoober

Danny Karlinsky #23 has the disc for Sockeye against Revolver in the Final of USAU Nationals 2015;


In the short video below, we break down what exactly happens in the six seconds leading up to the throw (audio at the end):

You can watch “Crazy” Frank Huguenard and Felix Shardlow’s full analysis of the USAU Nationals 2015 Final here – also check out the discussion on reddit.

The fallacy of “No Breaks”

We’re all familiar with the following situation; our team has turned over, the player we’re marking is walking to the disc, we’re putting a force on, and our sideline helpfully advises “No breaks!”


Photo by Graham Shellswell from The ShowGame

At this moment in time, not being broken is pretty much your only aim. If there was one thing you were planning on avoiding for the next few seconds, it’d be being broken by the thrower. You know this is not an easy task, but you’re going to try your hardest. You’re remembering the release points of your mark, you’re glancing over your shoulder to visualise the potential threats, and you have an extra pair of eyes on the sideline to help you. What do they say? No breaks. Guess you’re to blame if you get broken then – the instructions couldn’t be clearer.

Another situation we’re all familiar with – the opponents break the force, and the shout of “No breaks!” rings out again – usually in a more whiney tone. The force has already been broken – all the shouter is doing is releasing their frustration in a commonly acceptable way. You wouldn’t shout “Don’t get scored on!” before or after the opponents score, would you? Everybody knows what you were trying to do, and that you didn’t succeed in doing it – no need to state the obvious.

The real fallacy of ‘No Breaks’ isn’t in how obvious, unhelpful, or useless it is as a hindsight, but in the near-impossibility of the request. When two players of comparable ability face up against each other, the thrower will be able to break the force. We’ve all been part of drills since we were beginners where breaking the force is a given. The three-man break-force drill doesn’t pose any real challenge to the throwers – without any restrictions on time and space, breaking the force is easy, and stopping all break throws is incredibly difficult.


Photo by Simon Crisp
What a force can be expected to do though, is to stop throws to a particular space at a particular time. The force knows very little about which particular space and which particular time – their main indicators come from what they can see (the thrower – where they’re looking / pivoting), and what they can hear (sounds of players behind them / cutters calling for the disc).

The sideline have access to far more information. They can see space developing behind the force, and instruct the mark to move to prevent throws to this space. Conversely, they can also see where covered cuts or crowded areas are behind the force, and instruct the mark to force throws to go towards these areas. Sideline players can identify a free offence player cutting and provide very timely shouts to help the force prevent the ‘easy’ throws to them.


Photo by Christine Rushworth from The ShowGame

Most higher level teams have their own lexicon for communicating some of this information – ‘left hand / right hand‘, ‘around / inside’, ‘strike‘ and ‘spoil‘ / ‘no huck’ calls are quite common, and each are useful for encouraging the force to concentrate on taking out a particular throw at a particular time – infinitely more useful than a ‘no break’ shout. This allows the force to direct their efforts in the most effective way.

The sideline can also help the force by letting them know more general / less situation-specific information, so as what the thrower’s preferred throws are – if they’ve been using high releases to devastating effect, then communicating ‘high hands‘ can benefit the defence. If the thrower is going into the wind, then ‘low hands’ can force higher release points, therefore tougher upwind throws.

At the next opportunity when your team mate is stepping up to put a force on, trust that they know the basics of the task at hand, and communicate to them using the info they can’t see or hear for themselves. It’s time we heard the last of “No Breaks”.

Offences vs Defences: Training to counter your opponent effectively

Introduction:

In this article I will be seeing how a selection of common offences match up to a selection of common defences in Ultimate, and whether any conclusions can be drawn about the most effective offences / defences for teams to spend time learning in order to efficiently counter their opponents’. When planning what strategies your team should learn in any given season, it’s important to know what their strengths and weaknesses are, and how they are most likely to be countered effectively by your opponents.
The strategies listed are by no means exhaustive – every strategy has several different ways of being played, several tweaks or modifications, several patterns or plays which can be employed – none of which are touched on here, for the sake of simplicity. Environmental factors are not considered, “match-strategy” is not considered (e.g. come out more aggressive at the start of a match; change your defence regularly), skill-sets of teams or individual players are not considered, and different teams will have experienced different levels of success with the strategies listed – these estimates and statements are generalisations, made in order to achieve some kind of tangible comparison between the offensive/defensive strategies based on their merits and drawbacks.

I’m working with four offences and four defences:
Vertical / side / split stack offence: Players line up in the centre or at the side of the field, and make hard ‘cuts’ to the space available, before ‘clearing’ back into a stack. One player stays behind the disc as a dump/reset.
Horizontal stack: Players create a 3-4 formation (3 backfield, 4 downfield), with the downfield players either cutting towards or away from the disc.
Hexagon offence: Players form a hexagon made from equilateral triangles, often in a 2-3-2 formation, with movement creating space for passes in any direction. More info on Hex offence here.
Zone O: Varies from team to team, but usually 3 or 4 players in the backfield, who swing the disc from side to side, looking to pass downfield to ‘poppers’ attacking the space in front of the disc, and wings or deeps further downfield.

Strict person-D: Each defender marks an offensive player, staying very close to them for the duration of the offence. The side the defender tries to hold position on their mark is determined by the direction of the force put on the thrower.
“Help-defence”: A modification of person-D where the defenders are heads-up to switching marks and helping covering dangerous space when appropriate. More info on Help-defence here.
Flexagon: A hybrid defence, taking elements from person-D and Zone, to apply pressure to all players by using constant teamwork and communication. In theory a 2-3-2 setup, but actual positioning is entirely dependant upon where the offensive players are. More info on Flexagon D here.
Zone D: Defenders spread over the field to cover the space, usually overloading the area in front of the thrower to limit short downfield throwing options. There are many types of Zone D, this article does not distinguishing between them (for simplicity).

defence
* a note about strict person-D: although much pressure can be applied by playing this defence with smart local positioning and trained athletic moves, I see the strategy as limited due to (a) the absence of teamwork between downfield defenders, and (b) the over-reliance upon matching or surpassing your opponents athletically.

offence

Calibration:

The table below compares each offence against each defence. The numbers are scoring likelihood / defence likelihood estimates, assuming two high-to-elite level teams are competing with well-practiced offences vs well-practiced defences. For example, assume the (very common) combination of Vertical stack vs strict person-D would see the offence scoring without turning over 85% of the time – use this as calibration for the other numbers, whether or not you agree with the figure! This is roughly the same for Horizontal stack vs person-D, and for Zone O vs Zone D – these combinations are generally considered comparable with each other in terms of effectiveness, as they are the most commonly played.
“Help-defence” is more variable than the others, as it depends a lot on how well it is played by the defence, and how well the offence adapts – so I’ve given the numbers a range.
Hexagon and Flexagon are quite new strategies, so the estimates are more likely to be inaccurate, however they are taken from 2-3 years of regularly teaching and playing the strategies – including with the GB U23 Mixed 2015 team.
All the numbers are rough estimates of likelihood, and the relative effectiveness of each strategy will certainly vary from team to team, and depending on how each is played!

o-d-matrix

From an offence point of view:

vs Strict person-D, it’s best to get defenders clumping together (covering the least / most useless space), so a vertical or side stack is ideal, and horizontal creates a large deep space. Hex spreads the defenders out, meaning the D actually becomes more efficient.
vs “Help-defence”, defenders who are clumping together will be able to poach/switch to help each other, so vertical stack becomes less effective. Horizontal spreads the defenders well, making it hard for them to help each other effectively – especially when it comes to covering the immediate deep threat. Hex spreads the defenders further and punishes poaching more efficiently, but doesn’t offer the immediate deep threat of Horizontal.
vs Flexagon, vertical stack is negated, and Zone O doesn’t function well due to the tight marking against static players. Any set cutting patterns of plays are unlikely to work, so Horizontal stack and Hexagon must improvise in order to function. Improvisation is easiest done when the number of available options is maximised, so Hex is the ideal setup.
vs Zone D, stack offences are negated. Zone O and Hex have both been shown to be effective at breaking down area-based (zonal) defences, so should be played to counter Zone D.

From a defence point of view:

vs Vertical / Side / Split stack offences, the offensive players are clumping, so strict person-D plays to their strength (clumping your defenders together and leaving large open spaces), whilst Zone or Flex will force them to transition into another offence. Help-defence punishes the clumping, which encourages the offence to improvise, and can generate turnovers when played well.
vs Horizontal stack, the offence is more spread, so help-defence is harder to implement. Strict person-D is moderately effective as usual (depending on your athleticism vs theirs), but Zone D or Flexagon will force the offence out of any pattern- or play-based movement.
vs Hexagon, simple person-D can cause issues, specifically if you are more athletic than your opponents. Help-defence is easier punished by Hex than other offences, but can force the offence to use all their options. Traditional zones don’t change the formation of the Hex, but can force a different play-style which the offence may not be used to. Flexagon applies pressure to the highest number of options, forcing the offence to improvise – meaning any set patterns or plays become unreliable, and players must identify space for cuts and passes as and when they appear.
vs Zone-O, the offensive players are looking for space to occupy, so person-D will force a transition. Zone D conserves the energy of most defenders, however Zone O will be well-practiced against Zone D. Flexagon is more person-focussed, which forces Zone O either to transition or to improvise – to play at a different pace/tempo than they are used to in Zone O.

Summary:

From an offence point of view: The most common defence is strict person-D, and the most common offence – vertical stack – does well to exploit strict person-D’s weaknesses. If the defence start switching and poaching (“Help-defence”), then the offence must start to improvise, and would ideally be able to counter with a practiced Horizontal stack or Hexagon offence. If facing Flexagon, offensive improvisation from a Horizontal / Hex / Zone O setup is necessary. If the defence play Zone, then the offence must respond with a practiced Zone O or Hexagon offence.
From a defence point of view: The most common offence is vertical stack, which plays to the weaknesses of strict person-D. Playing Flexagon or a Zone D will force the offence to transition – and you will see if they have a practiced alternative. Zone O can be countered effectively with person-D or Flexagon, which forces the offence to either completely improvise, or to play Horizontal stack or Hexagon offence. Flexagon still functions well against these offences, as does person-D – providing there is no athletic disadvantage.

Conclusion:

From an offence point of view: Time spent perfecting a vertical stack offence can be made to be ineffective if a defence plays anything other than strict person-D. Training an offence which works against Zone (i.e. Zone O or Hexagon offence) is essential. If your opponents have good “Help-defence” or Flexagon D, then you must either be able to improvise, or transition to Horizontal / Hexagon in order to keep your scoring percentages up. Horizontal must transition when facing Zone, but Hexagon can be played effectively against any defence you face – even though it may not necessarily be the most effective against any defence individually. Your team can function against any defence if they know both Horizontal (with improvisation) and Zone O, or if they simply know Hexagon offence. To be the most effective, a team should also learn an offence which punishes strict person-D more efficiently – vertical- or side-stack.
From a defence point of view: Strict person defence is simple to learn and functions against any offence, but its success is determined by the athletic edge you have over the opponent, and limited by the lack of teamwork involved. If you have an athletic edge over almost every opponent then strict person-D can get enough turns to win games, but only until you reach an athletically superior team playing a well-practiced offence, or until your own offence is countered. Learning a more challenging defence, particularly one which counters the most common offence – vertical stack – is essential, unless you are fully relying on your athleticism or your offence.
“Help-defence” is hard to learn and implement due to its lack of structure and principles, and it is most useful against vertical stack – less so against Horizontal or Hex. Zone D completely counters vertical and other stack offences, however most teams have a well practiced Zone O which will counter it well. Although Flexagon is also hard to learn, it is flexible enough to be played effectively against any offence you face, countering the most common vertical stack and Zone offences effectively.

More info on Hex offence here.
More info on Help-defence here.
More info on Flexagon D here.
Video of Flexagon D in action.