Freedom for tigers... Malicious guards hold tigers in a cage. Set tigers free and hide security guards from them in the same cage. In a square box 5 by 5 there are 24 1 by 1 bars- one place is empty. On four bars the guards are drawn, on the other four bars the tigers are drawn and on sixteen bars pieces of a lattice are drawn. In the initial position the tigers are in a trap, the guards are outside of a trap there is an empty place in the centre of a box.