Analysis of information sources in references of the Wikipedia article "Kick-off (association football)" in English language version.
A goal may be scored directly against the opponents from the kick-off
...all players, except the player taking the kick-off, must be in their own half of the field of play.
A coin is tossed and the team which wins the toss decides which goal it will attack in the first half of the match. The other team takes the kick-off to start the match
A goal may be scored directly from the kick-off
A kick-off starts both halves of a match, both halves of extra time and restarts play after a goal has been scored. Free kicks (direct or indirect), penalty kicks, throw-ins, goal kicks and corner kicks are other restarts (see Laws 13–17).
A kick-off starts both halves of a match, both halves of extra time and restarts play after a goal has been scored. Free kicks (direct or indirect), penalty kicks, throw-ins, goal kicks and corner kicks are other restarts (see Laws 13–17).
...all players, except the player taking the kick-off, must be in their own half of the field of play.
A goal may be scored directly against the opponents from the kick-off
the ball was placed in the middle of the field, and both parties, at the fire of the pistol, started for the game, the Fearnoughts getting the first kick
At the commencement of the play the ball shall be kicked off from the middle of the ground: after every goal there shall be a kick-off in the same way
Kick off from middle must be a place kick
The Ball must be kicked off from the middle of the ground, halfway between the two Bases
The game lasts an hour, and is commenced by a "bully" in the middle of the field
The choice of goals and kick off shall be determined by tossing
The Captains on each side shall toss for choice of goal; the side losing the toss has the kick-off from the centre point between the Goals
The winners of the toss shall have the option of kick off or choice of goals.
In the event, however, of no goal having fallen to either party at the lapse of half the allotted time, ends shall then be changed.
In the event, however, of no goal having fallen to either side at the lapse of half the allotted time, ends shall then be changed. [...] After the change of ends at half-time the same side as originally kicked off shall kick off as provided in the second part of Rule II.
[A]fter the change of ends at half-time the ball shall be kicked off by the opposite side from that which originally did so
nor shall any player on either side pass the centre of the ground in the direction of his opponents' goal until the ball is kicked off.
The game shall be commenced by a place-kick from the centre of the ground in the direction of the opposite goal-line
When a free kick has been awarded, the kicker's opponents shall not approach within 6 yards of the ball unless they are standing on their own goal-line. The ball must at least be rolled over before it shall be considered played; i.e., it must make a complete circuit or travel the distance of its circumference. The kicker shall not play the ball a second time until it has been played by another player. The kick-off (except as provided by Law 2), corner-kick, and goal-kick, shall be free kicks within the meaning of this Law. [emphasis added]
In no case shall a goal be scored from any free kick, nor shall the ball be again played by the kicker until it has been played by another player. The kick-off and corner-flag kick shall be free kicks within the meaning of this rule.
11. In the event of any infringement of Rules 5, 6, 8, or 9, 12, or 14, a free kick shall be forfeited to the opposite side from the spot where the infringement took place.
12. In no case shall a goal be scored from any free kick, nor shall the ball be again played by the kicker until it has been played by another player. The kick-off and corner-flag kick shall be free kicks within the meaning of this rule [emphasis added].
In the event of any infringement of rules 2, 5, 6, 8, 9, or 10, a free kick shall be forfeited to the opposite side, from the spot where the infringement took place [emphasis added].
[Law 2] Decision of International Board:-- If this law is not complied with, the kick-off must be taken over again
