If two or more men are so placed that one square intervenes between each they may all be taken at one move. Thus if white having to move has a man on 28, and black men on 24, 16 and 8, the intermediate squares and square 3 being vacant, white could move from 28 to 3, touching 19 and 12 en route, and take the men on 24, 16, and 8; but if there is a piece on 7 and square 10 is vacant, the piece on 7 cannot be captured, for becoming a king ends the move. It is compulsory to take if possible. If a player can take a man (or a series of men) but makes a move that does not capture (or does not capture all that is possible), his adversary may allow the move to stand, or he may have the move retracted and compel the player to take, or he may allow the move to stand and remove the piece, that neglected to capture from the board (called "huffing"). "Huff and move" go together, i.e. the player who huffs then makes his move. When one player has lost all his pieces, or has all those left on the board blocked, he loses the game. The game is drawn when neither of the players has sufficient advantage in force or position to enable him to win. The losing game, or "first off the board," is a form of draughts not much practised now by expert draught players. The player wins who gets all his pieces taken first. There is no "huffing"; a player who can take must do so. _Draughts Openings._--As there are seven possible first moves, with seven possible replies to each, or forty-nine in all, there is an abundant variety of openings; but as two of these (9-14, 21-17 and 10-14, 21-17) are obviously unsound, the number is really reduced to forty-seven. Much difference of opinion exists regarding the relative strength of the various openings. It was at one time generally held that for the black side 11-15 was the best opening move. Towards the end of the 19th century this view became much modified, and though 11-15 still remained the favourite, it was recognized that 10-15, 9-14 and 11-16 were little, if at all, inferior; 10-14 and 12-16 were rightly rated as weaker than the four moves named above, whilst 9-13, the favourite of the "unscientific" player, was found to be weakest of all.