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MarkThornton
Member since Jan-08-06 · Last seen Oct-12-14
I mainly compose chess problems these days. Please visit http://pdb.dieschwalbe.de/search.js... to see a selection of my compositions.

This problem first appeared in The Problemist Supplement, July 2009.

Mark Thornton (after Tibor Orban). Dedicated to Etienne Dupuis, author of Euclide, a program for solving and composing proof games.


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Position after White's 7th move. How did the game go?

It is based on this famous problem by Tibor Orban, Die Schwalbe, 1976 (Commended)


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Position after Black's 4th move. How did the game go?

Solution to Orban's Problem: 1. e4 e6 2. Bb5 Ke7! 3. Bxd7 c6 4. Be8 Kxe8

Solution to my problem: 1. Nh3 d5 2. Nf4 Bg4 3. Nxd5 Bxe2 4. Nxe7 Bb5! 5. Bxb5+ Kxe7 6. Be8 Kxe8 7. O-O

White's 7th move rules out the following possibilities: 1. Nh3 d5 2. Nf4 Bg4 3. Nxd5 Bxe2 4. Nxe7 <Bxf1> 5. Kxf1/Rxf1 Kxe7/Bxe7/Nxe7 6. Ke1/Rh1 Ke8/Bf8/Ng8

>> Click here to see MarkThornton's game collections.

   MarkThornton has kibitzed 2560 times to chessgames   [more...]
   Aug-12-14 The World vs Naiditsch, 2014 (replies)
 
...
 
   Aug-12-14 RandomVisitor chessforum (replies)
 
...
 
   Jul-01-14 Speelman vs A D Martin, 1982
 
MarkThornton: I remember watching this game in the Commentary area of the British Championships. At first, no-one believed this sacrifice, but then we all began to realise that Black had no defence....
 
   Jul-01-14 Chandler vs Speelman, 1985
 
MarkThornton: I was fortunate to be a spectator in the audience that was watching this game, as it unfolded. 19....Nf3+ caused a sensation, and I remember trying to calculate all the variations.... But it soon became clear that Black was winning in all variations. One of Speelman's best ...
 
   Apr-22-14 Kibitzer's Café (replies)
 
MarkThornton: Readers with an interest in chess problems may wish to sample the Weekly Chess Problem on the website of the British Chess Problem Society: http://www.theproblemist.org/the-we...
 
   Apr-21-14 Carlsen vs Nakamura, 2014 (replies)
 
MarkThornton: At move 16, Carlsen had no advantage, by move 32, he had strong endgame pressure, at move 48 he was 2 pawns up with a won game. Remarkable!
 
   Mar-30-14 P Hulshof vs E L'Ami, 2003
 
MarkThornton: I have discovered that Erwin l'Ami has annotated this game on his personal website: http://www.erwinlami.nl/partijen_hu... . Unfortunately, the annotations are in Dutch, which will be a barrier for some people.
 
   Dec-25-13 C Van de Loo vs M Hesseling, 2008 (replies)
 
MarkThornton: I have fed this game into Stockfish! and it immediately found a big improvement for White: <18.Kg1!> f2+ 19.Kg2 Rh2+ 20. Kxh2 f1=Q and now <21.Nd2!>. In order to defend the position, White needs to keep moves like Qh8, Qg8, Qf8 in reserve, and so must refrain from ...
 
   Dec-21-13 Dus Chotimirsky vs Salwe, 1903 (replies)
 
MarkThornton: a very nicely conducted attack by Salwe.
 
   Dec-15-13 Paul Dargan
 
MarkThornton: Paul Dargan was the youngest member of the team from the Royal Grammar School, Newcastle, which won the British Schools Championship in 1984. Andrew Dunn , and User: MarkThornton were also members of that team.
 
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