2. Draw Conditions (4 chesscoins)
Under which of the following conditions a draw can be declared?
(a) Both players make 50 consecutive moves without moving a pawn or capturing a piece
(b) The king having the move has no legal moves while at the same time he is not in check and no other piece can be played
(c) When the same position occurs three consecutive times (white makes the same move three times followed by the same answer by the black)
(d) Only the two kings have been left on the board or there is no sufficient material to checkmate the opponent
(e) All of the above