Unanswered Questions

6
votes
2answers
130 views

Is the result in mini-chess known with perfect play?

I do not know, if "mini-chess" is the official name of the game I am talking about. In mini-chess, the players only start with the pawns (In particular, there are no kings!) The players play the ...
5
votes
1answer
280 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
77 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
198 views
+50

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
57 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
1answer
127 views

Is there a Web Service available for 6-piece endgame tablebases?

I use the LokaSoft web service for 5-piece endgames, but cannot find one for 6 pieces. BTW, by web service I mean a software function capable of being called over the internet (see ...
3
votes
1answer
181 views

Should I be afraid of the Slav Tolush-Geller Gambit?

As Black, after 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3, I like to play 4... dxc4 5. a4 Bf5, but I am afraid to play 4... dxc4 because of 5. e4, the Tolush-Geller Gambit (always followed by 5... b5 6. e5 ...
3
votes
0answers
86 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 ...
3
votes
1answer
644 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 ...
3
votes
1answer
506 views

In ChessBase 12, when viewing an Opening Tree, why do all the games always stop near move 26?

I have ChessBase 12 64Bit. To create an Opening Tree I do the following steps: I click on "Mega Database 2014". I filter all the 5.8 millions games like I want (for example, taking only the games ...
2
votes
2answers
86 views

Theoretical limit for the number of consecutive checks?

The known record for the longest sequence of consecutive checks in a legal position without promoted pieces, is 37. See http://timkr.home.xs4all.nl/chess/check.html Is there a theoretical limit ...
2
votes
0answers
61 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
149 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
42 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
86 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 ...

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