All the ways to end a chess game by FIDE rules:

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putshort
1. Checkmate
2. Draw by agreement
3. Draw by 50 moves rule
4…?
blueemu

Resignation

Draw by the 75-move rule

Draw by insufficient mating material

Time forfeit

Forfeit for conduct unbecoming

Martin_Stahl
putshort wrote:
1. Checkmate
2. Draw by agreement
3. Draw by 50 moves rule
4…?

Stalemate

Triple repetition of position

Five-fold repetition

Second illegal move in a game

Gorgon_Slayer

Earthquake.

Fire.

Tsunami.

Death of one or both players.

putshort
If the players got their colors mixed up the the game will end and a new one will start if no more than 10 moves have been made.
chessterd5
putshort wrote:
If the players got their colors mixed up the the game will end and a new one will start if no more than 10 moves have been made.

I believe that is a USCF rule.

if I remember correctly, FIDE always restarts from the original error regardless of how many moves have been played?

blueemu
Gorgon_Slayer wrote:

Earthquake.

Fire.

Tsunami.

Supernova.

chessterd5
blueemu wrote:
Gorgon_Slayer wrote:

Earthquake.

Fire.

Tsunami.

Supernova.

C. J. S. Purdy the correspondence master and champion died during a tournament at the table. I am uncertain what the official standings read afterwards?

blueemu

I was playing in a CFC-rated OTB tournament at the Student Union Building at the Fredericton campus of the University of New Brunswick. One of the older players a couple of boards down from me keeled over right in the middle of a game. Heart attack.

After the emergency crew came and collected him, the tournament director walked back to the unfortunate man's board, studied the position for a moment, muttered "He was losing anyway." and walked away.

chessterd5
blueemu wrote:

I was playing in a CFC-rated OTB tournament at the Student Union Building at the Fredericton campus of the University of New Brunswick. One of the older players a couple of boards down from me keeled over right in the middle of a game. Heart attack.

After the emergency crew came and collected him, the tournament director walked back to the unfortunate man's board, studied the position for a moment, muttered "He was losing anyway." and walked away.

C. J. S. Purdy also died of a heart attack during a tournament. he fell to the floor and his son playing a few boards over rushed to his side.

As his son held him, Purdy said" I have a win, but it may take some time."