Board board = game.board;
try {
assertFalse(game.prev());
assertFalse(game.next());
SGFNode n2w, n3b_1, n3b_2;
// test forward/backward navigation
game.play(3, 3, Board.BLACK);
game.play(0, 1, Board.WHITE);
n2w = game.kifuLastMove();
game.play(0, 2, Board.BLACK);