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Unanswered Questions

66 questions with no upvoted or accepted answers
7
votes
2answers
1k views

Alpha Zero vs Stockfish, French Defence, is this move for Black better?

I'm referring to the French Defense (C11 ECO code) game where Alpha Zero played 30. Bxg6 ! , sacrificing a bishop for a better position. After Alpha Zero's move 30. , I couldn't find any good moves ...
7
votes
0answers
429 views

Pawn Structure database

I wonder if there is any existing or a way to create a chess database organised only according to pawn structures, where the notion of a pawn structures is crudely defined by GM Andrew Soltis in his ...
7
votes
2answers
773 views

What happened with the Fide online arena

About a year ago I stumbled on arena.myfide.net which looked promising , and unique in the ability to get an actual Fide rating. But in that year no progress has been made with the site, and mobile ...
5
votes
0answers
113 views

Does the chick promotion rule in dobutsu shogi really matter?

In dobutsu shogi, the chick (Japanese pawn) promotes to a chicken (Gold general). In my experience this promotion occurs only rarely and I suspect after much blundering. Does the chick promotion rule ...
5
votes
0answers
157 views

Are there any dicylic graphing programs for chess?

Although chess is frequently thought of as a tree structure, it is not because positions can be arrived at through different move orders and moves can be repeated. Are their graphing programs/...
5
votes
1answer
267 views

Human and computer vs computer alone

How much stronger are human/computer teams vs. computers alone? My understanding is that that advantage is enough to be decisive, especially in correspondence play, but just how large is it?
4
votes
0answers
147 views

Why did GM Godena resign in this position?

Being an Italian, I am following my team at the Batumi Olympiad, and I was disappointed in seeing that GM Godena had just lost to a mere Candidate Master rated 500 ELO lower (Italy - Nepal). Then I ...
4
votes
0answers
118 views

Who said “One bad move nullifies forty good ones”?

This quote is attributed both to Bernhard Horwitz and I.A. Horowitz, and I'd like to know which one said it. One thing that helps is they don't have overlapping lifespans. Bernhard Horwitz died in ...
4
votes
1answer
123 views

Fritz Online will not finish game?

Fritz Online will play all the way to the point where there's mate in one move. In other words, if you are white and Fritz is black it will stop playing (moving) at the point any black move will be ...
4
votes
1answer
399 views

What is alternative to Zobrist hashing?

Zobrist hashing is very good method save position but it is not good to read position - is any good alternative to this algorithm which allow to store and restore position with minimum of bits. For ...
4
votes
0answers
133 views

how to use ending evaluation in UCI interaction with Stockfish

Playing with the Stockfish 8 UCI from the terminal, I've managed to make it compute move, set the position and load SYZYGY tables. But how can know if an endgame, that corresponds to a kind of ...
4
votes
2answers
2k views

Adjusting parameters in the engine stockfish 6

I downloaded Stockfish 6 (a binary file for Windows). It works, but I miss two things: The depth seems to be rather low. How can I increase the selectivity? How can I achieve that the engine uses the ...
4
votes
0answers
549 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 ...
3
votes
0answers
94 views

How big is the “opening book” of a typical tournament player

How many openings does a typical (national/international level) tournament player usually know and play? For instance: in a tournament, can I expect that a player will either open 1.d4 or 1.e4 ...
3
votes
0answers
72 views

Multi-Period Time Controls Online

All online services for playing chess that I am aware of allow the user to specify a time control with a single base time and an increment. I would like to find one that supports a multi-period ...

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