communicate and switch their marks if their respective charges change their cuts from in to deep, or vice versa. The clam can also be used by the entire team, with different defenders covering in cuts, deep cuts, break side cuts, and dump cuts. The term "junk defense" is also often used to refer to zone defenses in general (or to zone defense applied by the defending team momentarily, before switching to a match defense), especially by members of the attacking team before they have determined which exact type of zone defense they are facing. Bracket Bracket defenses are almost exclusively used on vertical stack offences, and incorporate elements of both zone and match defence. In bracket defense, the handlers are covered by match defence, and the only changes are when marking the cutters. Once the stack has set up, one player (the "deep" or "monster") will set up a defence on the back of the stack. Simultaneously, a defensive player (known as the "under") will set up between the front of the stack and the handler with the disc. The rest of the defence will set up a match defence on the players in the stack. When play begins, any cutters who try to go for a long throw will be covered by the "deep", and any cutters who try to go towards the handler will be covered by the "under". This defence attempts to force the offence into 1-on-1 situations with the strongest defensive players. Hasami Hasami, the Japanese word for "scissors", is a popular hybrid person/zone defence used by the Japanese women's team who won gold at WUGC 2012. The name refers to the method of using two pairs of defenders to cut the area downfield into sections, with defenders responsible for space "under" (nearer the disc) and "away" (towards the end zone), and also the left and right areas of the field. Defenders rely on visual and verbal communication to switch and cover the offensive threats between them. Hasami forms the basis of most Japanese style zone defences. Hexagon or flexagon A separate type of defense is hexagon or "flexagon", which incorporates elements of both match-to-match and zonal defense. All defenders are encouraged to communicate, to sandwich their opponents and switch marks wherever appropriate, and to ensure no opposing player is left unmarked. Spirit of the game All youth and most club ultimate games are self-officiated through