Edo Ratings, Deschapelles, A.L.H.L.

Deschapelles, A.L.H.L. – Cochrane, J. 1821

Results

Name	Edo	Dev.	Score	/	Games
Deschapelles, Alexandre	2631	(99)	3	/	6
Cochrane, John	2325	(100)	3	/	6

Status: soft result (plausible score)

Event table notes

Event data

Place: Paris

Start date: Apr. 1821

End date: Apr. 1821

Notes:

The terms were that, in order to win the match, Deschapelles had to win 2/3 of the games. All we actually know is that Deschapelles failed to win the match, i.e. 2/3 of the games. Only one game is now known, a win by Cochrane. The score is not known, nor how many games were played. However, since this result greatly modifies our assessment of Cochrane's strength in comparison to his poor score against Deschapelles at pawn and 2 moves, I have decided to use a 'soft' result here of +3-3. We know that Deschapelles won at least 2 as he said he won those games (plural) that were desperate. And we know that he won in a proportion less than 2 out of 3. We also know that Cochrane's wins exceeded a third of the games by less than six games, since we are told that he won back only part of the money he lost in the three-way contest with Deschapelles and de la Bourdonnais. Using a result of 3/6 for Deschapelles is a compromise between 2/6 (winning only 2 games) and 4/6 (winning 2 out of 3) without claiming too much precision in this estimate. I could have used 2/4 to achieve the same percentage, but 6 games gives a bit more of a counterbalance to the result of the games at Pawn and two moves they played in the three-way contest the same year.

References

Books

Golombek, Golombek's Encyclopedia, page 85

Hooper and Whyld, Oxford Companion (1st ed.), page 88

Murray, History of Chess, page 879

Sergeant, Century of British Chess, page 27

Utterberg, De la Bourdonnais versus McDonnell, page 11

Walker, Chess Studies, page 78

Periodicals

[CPC], vol. 2, no. 10, 1 Jan. 1842, page 151

[CPC], vol. 9, no. 2, Feb. 1848, page 60

[CPM], vol. 2, no. 9, Sep. 1864, page 265