Unanswered Questions

14
votes
0answers
594 views

Does white really have a win in this pawn ending, as claimed by Tim Krabbé?

Update: ​ ​ ​ ​ I emailed Tim Krabbé, and he agrees that ​ 41. b4 bxa4 ​ draws. He has posted a PS about this just under his old analysis. With respect to "Skawinski - Tomczak, European ch rapid, ...
10
votes
1answer
295 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.
9
votes
0answers
50 views

What is the origin of the Merida chess font?

Currently the most popular chess font is http://www.enpassant.dk/chess/fonteng.htm#MERIDA. I used to be under the impression that this is a new font from the computer era, but I found in a German ...
6
votes
2answers
115 views

Does chess help develop moral virtues or correct practical attitudes?

Benjamin Franklin wrote a famous essay on the virtues of chess, claiming that it teaches foresight, circumspection, caution among others. Kasparov Chess Foundation's mission is to bring the many ...
6
votes
1answer
277 views

Should white be able to win this endgame?

Should white be able to win from the position [fen "8/5k2/3p1p2/3PnP2/1KP1r1P1/8/3RB3/8 b - - 0 67"] with black to move? (A game I was playing ended there when black just let black's time run out ...
6
votes
3answers
393 views

In an opening tree on ChessBase, how can we fix the statistics so that transpositions are not taken into account in the total number of games?

In an opening tree (also called "opening explorer" or "openings book") on ChessBase 12, here are the statistics that we get after 1. Nf3 c5 : So it seems that after 1. Nf3 c5 White will play 2. e4 ...
6
votes
2answers
452 views

Is there an online PGN editor for Blank Chess?

Blank Chess is a variant where the board starts empty and the first two moves are placing the Kings on your side of the board. You can then either place a piece or move a piece in subsequent turns. I ...
5
votes
1answer
93 views

How is it possible that the Lomonosov-endgame-tablebase from 2012 still is the most powerful tablebase?

Due to Wikipedia: Endgame tablebase the Lomonosov endgame tablebase is still the biggest tablebase (with a size of 140TB). Now this tablebase was computed in the year 2012 with the Lomonosov 1 (Top500-...
5
votes
2answers
194 views

Positions for visualisations

where I can download positions for visualisation training? I am not looking for diagrams, I would like to have only position record saved in standard chess notation. Or are there such a book?
5
votes
1answer
2k views

Additional openings that are Chess Position Trainer compatible

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 ...
5
votes
0answers
336 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
2answers
136 views

Assigning Engines in Arena

How does one assign a specific engine to a specific color in Arena? I load a PGN file and move to a specific point in the game. At that time I want to assign Engine A to play black and Engine B to ...
4
votes
0answers
108 views

Complete game Ojanen - Ridala , Helsinki 1959

http://timkr.home.xs4all.nl/chess2/diary_6.htm Entry 117 shows a case of fatal automatism. [FEN "R7/P4k2/8/8/7K/8/r7/8 w - - 0 1"] [White "Ojanen"] [Black "Ridala"] 1. Rh8 Rh2+ In the game ...
4
votes
0answers
276 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
0answers
41 views

Gull engine : Which depth value to set 6 difficulty levels?

We are installing the Gull engine for some chess enthusiasts in an organization. We would like to set 6 difficulty levels from beginner to master using depth. Is there someone who can advice us about ...

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