Unanswered Questions

217 questions with no upvoted or accepted answers
12 votes
0 answers
2k views

Highest depth ever achieved

I saw a guy that went into depth 70 with no search moves at 41, 192, 897, 168, and 184 nodes from the starting position on Stockfish a few years ago. I would like to know if this is still a record or ...
9 votes
0 answers
740 views

A fun game (for problem composers, mostly...)

A game leading to a given position is called a proof game. Of course any proof game can be prepended with 1.Nf3 Nf6 2.Ng1 Ng8, so we defined a shortest proof game as, duh, the shortest possible proof ...
8 votes
0 answers
226 views

Chessboard Domination from Opening

From the opening position for black (with no white pieces on the board), what is the fewest number of moves in which we can dominate the entire board, that is, reach a position so that each square is ...
8 votes
0 answers
408 views

Stockfish position evaluation component terms in Python?

I saw the excellent Javascript-based guide to how Stockfish evaluates (non-NNUE). Is there a python version out there, perhaps using python-chess? What I am trying to do (in case you have other ...
7 votes
0 answers
182 views

Chess engines missing mate in 2

After going through a long list of test positions for my chess engine, I found this simple mate in 2 puzzle that my engine failed to see even after searching to a depth of 16 ply. I checked the puzzle ...
7 votes
0 answers
233 views

How much would chess change if Black always had the last move?

In a hypothetical minor variant, could White's first-move advantage be compensated for by Black's right to last move? Normally, White wins have White play N+1 plies to Black's N. How would the game ...
6 votes
0 answers
122 views

How did the Omaha Gambit get its name?

I was recently playing the Vienna Gambit as white on chess.com and was surprised to see a variation called the "Omaha gambit." [Title "Vienna Game: Omaha Gambit"] [StartPly "5&...
6 votes
0 answers
137 views

Real reason tournament director of Teplice Open in Czechia tried to ban Ukrainian players?

I have just seen that FIDE has stepped in and told the organisers of the Teplice Open that they may not ban Ukrainian players from the tournament. Searching for more information as to why a tournament ...
6 votes
0 answers
268 views

Strategy in Navara gambit

I am playing few years strictly 1.Nf3 with the intention to play Reti Opening. In my last OTB game I experience Navara Gambit (from a Czech GM David Navara) in Reti Advanced variation: [FEN " &...
6 votes
0 answers
187 views

Russian chess school maxim: draw after loss (?)

I seem to remember a maxim attributed to the Russian chess school, "after two losses, draw the next game (however good the position may seem)". Does somebody know the exact saying and to ...
6 votes
1 answer
352 views

Is it possible to connect to the Lichess database remotely from ChessBase?

Lichess has a database of over 200 million blitz, rapid and classical games played on the website, that can be accessed via the opening explorer. That is extremely useful for those interested in ...
6 votes
0 answers
2k views

What exactly happened between Georg Meier and Elisabeth Paehtz / the German chess federation?

Today in chess news is German GM Georg Meier transferring to the Uruguayan chess federation. Meier alleges a dispute with fellow German player Elisabeth Paehtz, and a lack of support from the German ...
6 votes
0 answers
591 views

What's the etymology behind the Great Snake Variation?

This is called the Modern Defense: [FEN ""] 1.e4 g6 This is called the Modern Defense: [FEN ""] 1.d4 g6 This is called the "English Opening: Great Snake Variation": [...
5 votes
0 answers
499 views

What program/website shows the last captured piece in displaying the last move played in a position?

The following image appeared in the question Can anyone explain this sacrifice? You can see a pawn is captured. Sometimes a position will show the last move played or whose move it is but doesn't ...
5 votes
0 answers
120 views

Why is **...c4** bad in the Classical French but not in the Advanced Paulsen Variation?

I have been learning the French Defense lately and there was one game where I was confused about the computer analysis. Chess.com's engine says that 8... c4 is a mistake in the first game, while in ...

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