Groups of 5 need a 4m playing square. Adjust difficulty by altering the size of the square - the smaller, the easier to defend. Groups choose a defender (A), plus 2 attackers in possession (B & C), and two outlet players (D & E)
(B & C) pass the ball between one another. Defender (A) must run left and right to cover outlet players (D & E)
(A) shouldn't venture too far left or right if not intercepting, or they'll risk opening up the other side
(B & C) can make a maximum of 10 passes in toal before they must find (D or E) with a pass, the ball which (A) attempts to intercept
Passing must be around the square perimeter only - diagonally across is not allowed - so (B to D), or (C to E) are the valid options
(A) needs to be sly when intercepting. If the move is made too soon it will be read
Drill is repeated back the other way, with the same player (A) - who retreats closer to (B & C) - defending (D & E) from passing to (B or C) within 10 passes
Optionally keep defenders score. Every successful pass to other end scores + 1 point. Like golf, the lower score, the better
Rotate defender (A) and try to beat the lowest score.
As a progression, make the square larger to increase defensive demands.