Unanswered Questions

5
votes
1answer
370 views

How should an arbiter handle copying moves from another game?

In 2004 the British illusionist, Derren Brown, despite being a very poor chess player scored +4 -3 =2 against 9 strong chess players including scoring 2/4 against 4 grandmasters in a simul. Of course ...
5
votes
1answer
85 views

How to compose retrograde analysis problems?

Are there any books or articles devoted to composing retrograde analysis problems? It seems that you would need some techniques beyond ones for standard problems.
5
votes
0answers
228 views

Trying to locate an old puzzle

A friend of mine showed me a great white-to-mate-in-three puzzle back in the late '50s or early '60s. Unfortunately he doesn't recall it. I can remember a few things: It was composed by someone from ...
4
votes
0answers
46 views

Which was the first televised/video-recorded WCC match?

I was thinking about the way that chess has taken to being streamed recently and it got me wondering how far back one could go if they were to watch WCC matches instead of playing through them. So ...
4
votes
0answers
92 views

Indian theme in real life

We all know this beautiful theme of self-interference: [Title "Loveday, mate in 3"] [fen "3R4/5K2/8/4k1P1/4p3/7B/4p3/8 b - - 1 0"] Spoiler: Now the question: did such motive ever occur in an ...
4
votes
0answers
62 views

Around 00-01 Fide had a great online arena. What happened to that?

I remember this from the days entering high school ;) Fide.com has this very well made online game room, much like yahoo's in terms of functionality, but much cleaner and with some funky rating system ...
3
votes
2answers
81 views

In the Slav, after 1. d4 d5 2. c4 c6 3. Nf3 Nf6, what are all the differences between 4. Qc2 and 4. Qb3?

In the Slav, after 1. d4 d5 2. c4 c6 3. Nf3 Nf6 : What are all the differences between 4. Qc2 and 4. Qb3 ? Which one of them is better to reach some Catalan type positions? Which one of them tends ...
3
votes
3answers
132 views

“Breaking” crowded positions

White moves. Is there a systematic approach to tackling such crowded formations? I don't see an efficient way to progress, aside from charging to trade figures in order to thin the population. ...
3
votes
0answers
196 views

Which tie break system would be used in Tata Steel 2015?

Which tie break system would be used in Tata Steel 2015? I didn't find it on the tournament website. I don't know how to get it.
3
votes
1answer
773 views

Chess Position Trainer

I just started playing with Chess Position Trainer and I really enjoy the experience of playing through the "Closed Sicilian” repetoir that comes pre-loaded. The manual mentions that you can build ...
2
votes
1answer
154 views

Could black have saved the rook-endgame?

[Event "FIDE Women's World Chess Championship"] [Site "Sochi RUS"] [Date "2015.03.27"] [Round "4.2"] [White "Dronavalli Harika"] [Black "Meri Arabidze"] [Result "1-0"] [ECO "D03"] [WhiteElo "2492"] ...
2
votes
0answers
194 views

Which common response against 1.e4 did Magnus Carlsen say is a bad opening? And what was Carlsen's exact quote?

I remember that a year ago or two, Magnus Carlsen said that one of the response against 1.e4 was bad. I don't remember exactly which of them he was calling bad, but I think it was the French (or the ...
2
votes
0answers
49 views

Collecting principal variations during search and using them in ordering?

In an Alpha Beta search (Negamax framework), how does one collect principal variations to use in move ordering and how does one use them, without using a transposition table? And would it be different ...
2
votes
0answers
96 views

What percent of chess games contain a blunder?

To specify the question a bit: I consider a blunder a move which worsens the position by 3 pawns (300 centipawns) or more. I think this is a pretty good base mark, since a strong computer will ...
2
votes
2answers
90 views

how to evaluate the position inside the search function

using PVS Algorithm with Quiet search and zero window search what should the range of the score be (-infinity, infinity ) could it be as small as (-16000,16000) and what should the search return if ...

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