user18980: I was wondering, why is there no way for a player, who has sufficient mating material, to claim a draw against a lonely king?
According to Wikipedia:

The rules allow for several types of draws: stalemate, threefold or fivefold repetition of a position (with the same player to move), if there has been no capture or a pawn being moved in the last fifty or seventy-five moves, if checkmate is impossible, or if the players agree to a draw.

For example, KQvK is very obviously an endgame with only two results possible: White wins or draws. But according to the rules of chess, White cannot force his opponent to accept a draw on the spot. Offering a draw could be refused, and also giving a check on a square where Black could capture it could also be refused by Black by moving somewhere else.
Ok, let's be realistic for a second, 99.99% of the time this won't happen.
But somehow I find it counterintuitive not being able to end the game in this particular position without having to resign and entirely lose the game in a position where it's impossible for Black to win by checkmate. Especially since you've already proven that you're at least capable of making a draw against your opponent.
Of course, I'll admit such a ruling would be more of an edge case. But still, there's somehow a gaping hole in the rules of chess.

user18307: As with any matter on the laws of chess, the application of the laws is to some degree at the discretion of the arbiter. Therefore, the result may be different whether the arbiter is sympathetic or unsympathetic towards your position.
If the arbiter is sympathetic one course of action may be to use 7.4b:

... for the first two illegal moves by a player
the arbiter shall give two minutes extra time to his opponent in each instance; for a
third illegal move by the same player, the arbiter shall declare the game lost by this
player. However, the game is drawn if the position is such that the opponent cannot
checkmate the player’s king by any possible series of legal moves.

If you as the player with additional material had the move, you could make and complete an illegal move and then reinstate the position 3 times.
Note that the arbiter should need to be sympathetic to your position else you may fall foul of 12.8:

Persistent refusal by a player to comply with the Laws of Chess shall be penalised by loss
of the game. The arbiter shall decide the score of the opponent.

Although if you were to complete all 3 illegal moves before notifying the arbiter, I don't think this would be persistent refusal.

Another option with a sympathetic arbiter is to claim that the player failing to accept the draw and intentionally not moving is doing so in order to annoy the opponent. Which I would take as a reasonable claim, since, unless the player has a genuine belief he can win, I do not see any other motive for rejecting the draw offer.
This would mean the player rejecting the draw has contravened 12.6:

It is forbidden to distract or annoy the opponent in any manner whatsoever. ...

For which a penalty under 13.4c of reducing the remaining time of the offending player to end the game would result in the draw.

Of course if the arbiter is unsympathetic you as a player have little option to end the game as a draw early. The fastest way (if you suspect the opponent is intentionally refusing to move to prolong the game) may be to allow your own time to reach 2 minutes and claim that it is not possible for the opponent to win by normal means under 10.2a

If the player, having the move, has less than two minutes left on his clock, he may claim a
draw before his flag falls. He shall summon the arbiter and may stop the clocks. (See


a. If the arbiter agrees the opponent is making no effort to win the game by normal
means, or that it is not possible to win by normal means, then he shall declare the
game drawn. Otherwise he shall postpone his decision or reject the claim.


user12873: That excerpt from Wikipedia doesn't necessarily cover all cases where one can claim a draw. I haven't checked how this applies to FIDE specifically, but in many tournaments with no increment/delay, you can claim a draw if it's clear you can stop your opponent from winning. For example, in a king and rook vs king and rook, most good TDs would accept your claim of a draw if you're low on time.
Although, the Wikipedia excerpt does include the scenario "if checkmate is impossible". So for the particular claim you're referring to, this is covered there (since your opponent can't checkmate you with a lone king).

user4418: 
Why is there no rule allowing a player to claim a draw in lonely king
endgames?

For the simple reason that there is no need. If you are the player with the extra material you can offer a draw and be almost guaranteed that your opponent will accept the offer. If you have an opponent who is ignorant of the rules you can walk away and let your clock time expire and the game will be a draw.
This is what the FIDE Laws of Chess have to say:

6.9 Except where one of Articles 5.1.1, 5.1.2, 5.2.1, 5.2.2, 5.2.3 applies, if a player does not complete the prescribed number of moves in the allotted time, the game is lost by that player. However, the game is drawn if the position is such that the opponent cannot checkmate the player’s king by any possible series of legal moves.

A player with only a king cannot checkmate the opponent and so the game is a draw.
EDIT: Remellion makes an excellent point in the comments which is worth repeating -

Technically you don't need a new rule - under 7.5.5, you can just make two illegal moves in front of the arbiter, ending the game immediately (as a draw, similar to when your time runs out but cannot possibly be checkmated). No need to bloat the rules more

You don't even need to wait until the arbiter is watching your game. You can deliberately complete (by making the move and then pressing the clock) an illegal move, stop the clocks, explain to your opponent that you have made and illegal move and then call the arbiter to report yourself. While the arbiter is there explain to them that you are going to make a second illegal move to effectively claim a draw. That way you don't annoy the arbiter by calling them back twice.

18980: <p>I was wondering, why is there no way for a player, who has sufficient mating material, to claim a draw against a lonely king?</p>
<p>According to Wikipedia:</p>
<blockquote>
<p>The rules allow for several types of draws: stalemate, threefold or fivefold repetition of a position (with the same player to move), if there has been no capture or a pawn being moved in the last fifty or seventy-five moves, if checkmate is impossible, or if the players agree to a draw.</p>
</blockquote>
<p>For example, KQvK is very obviously an endgame with only two results possible: White wins or draws. But according to the rules of chess, White cannot force his opponent to accept a draw on the spot. Offering a draw could be refused, and also giving a check on a square where Black could capture it could also be refused by Black by moving somewhere else.</p>
<p>Ok, let's be realistic for a second, 99.99% of the time this won't happen.</p>
<p>But somehow I find it counterintuitive not being able to end the game in this particular position without having to resign and entirely lose the game in a position where it's impossible for Black to win by checkmate. Especially since you've already proven that you're at least capable of making a draw against your opponent.</p>
<p>Of course, I'll admit such a ruling would be more of an edge case. But still, there's somehow a gaping hole in the rules of chess.</p>
 18307: <p>As with any matter on the laws of chess, the application of the laws is to some degree at the discretion of the arbiter. Therefore, the result may be different whether the arbiter is sympathetic or unsympathetic towards your position.</p>
<p>If the arbiter is sympathetic one course of action may be to use 7.4b:</p>
<blockquote>
<p>... for the first two illegal moves by a player
the arbiter shall give two minutes extra time to his opponent in each instance; for a
third illegal move by the same player, the arbiter shall declare the game lost by this
player. However, the game is drawn if the position is such that the opponent cannot
checkmate the player’s king by any possible series of legal moves.</p>
</blockquote>
<p>If you as the player with additional material had the move, you could make and complete an illegal move and then reinstate the position 3 times.</p>
<p>Note that the arbiter should need to be sympathetic to your position else you may fall foul of 12.8:</p>
<blockquote>
<p>Persistent refusal by a player to comply with the Laws of Chess shall be penalised by loss
of the game. The arbiter shall decide the score of the opponent.</p>
</blockquote>
<p>Although if you were to complete all 3 illegal moves before notifying the arbiter, I don't think this would be persistent refusal.</p>
<hr />
<p>Another option with a sympathetic arbiter is to claim that the player failing to accept the draw and intentionally not moving is doing so in order to annoy the opponent. Which I would take as a reasonable claim, since, unless the player has a genuine belief he can win, I do not see any other motive for rejecting the draw offer.</p>
<p>This would mean the player rejecting the draw has contravened 12.6:</p>
<blockquote>
<p>It is forbidden to distract or annoy the opponent in any manner whatsoever. ...</p>
</blockquote>
<p>For which a penalty under 13.4c of reducing the remaining time of the offending player to end the game would result in the draw.</p>
<hr />
<p>Of course if the arbiter is unsympathetic you as a player have little option to end the game as a draw early. The fastest way (if you suspect the opponent is intentionally refusing to move to prolong the game) may be to allow your own time to reach 2 minutes and claim that it is not possible for the opponent to win by normal means under 10.2a</p>
<blockquote>
<p>If the player, having the move, has less than two minutes left on his clock, he may claim a
draw before his flag falls. He shall summon the arbiter and may stop the clocks. (See</p>
</blockquote>
<blockquote>
<p>a. If the arbiter agrees the opponent is making no effort to win the game by normal
means, or that it is not possible to win by normal means, then he shall declare the
game drawn. Otherwise he shall postpone his decision or reject the claim.</p>
</blockquote>
 12873: <p>That excerpt from Wikipedia doesn't necessarily cover all cases where one can claim a draw. I haven't checked how this applies to FIDE specifically, but in many tournaments with no increment/delay, you can claim a draw if it's clear you can stop your opponent from winning. For example, in a king and rook vs king and rook, most good TDs would accept your claim of a draw if you're low on time.</p>
<p>Although, the Wikipedia excerpt does include the scenario &quot;if checkmate is impossible&quot;. So for the particular claim you're referring to, this is covered there (since your opponent can't checkmate you with a lone king).</p>
 4418: <blockquote>
<p>Why is there no rule allowing a player to claim a draw in lonely king
endgames?</p>
</blockquote>
<p>For the simple reason that there is no need. If you are the player with the extra material you can offer a draw and be almost guaranteed that your opponent will accept the offer. If you have an opponent who is ignorant of the rules you can walk away and let your clock time expire and the game will be a draw.</p>
<p>This is what the <a href="https://handbook.fide.com/chapter/E012018" rel="nofollow noreferrer">FIDE Laws of Chess</a> have to say:</p>
<blockquote>
<p>6.9 Except where one of Articles 5.1.1, 5.1.2, 5.2.1, 5.2.2, 5.2.3 applies, if a player does not complete the prescribed number of moves in the allotted time, the game is lost by that player. However, <strong>the game is drawn if the position is such that the opponent cannot checkmate the player’s king by any possible series of legal moves.</strong></p>
</blockquote>
<p>A player with only a king cannot checkmate the opponent and so the game is a draw.</p>
<p>EDIT: Remellion makes an excellent point in the comments which is worth repeating -</p>
<blockquote>
<p>Technically you don't need a new rule - under 7.5.5, you can just make two illegal moves in front of the arbiter, ending the game immediately (as a draw, similar to when your time runs out but cannot possibly be checkmated). No need to bloat the rules more</p>
</blockquote>
<p>You don't even need to wait until the arbiter is watching your game. You can deliberately complete (by making the move and then pressing the clock) an illegal move, stop the clocks, explain to your opponent that you have made and illegal move and then call the arbiter to report yourself. While the arbiter is there explain to them that you are going to make a second illegal move to effectively claim a draw. That way you don't annoy the arbiter by calling them back twice.</p>
