New answers tagged analysis
4
It's probably a typo. Perhaps he meant ...h6
1
I think there's also an important misunderstanding of engines. When they're ahead, they like anything that maintains the lead. It is one methodical way to win. But Rxd1 is NOT a critical move. It is simply a fair trade that magnifies the material imbalance without creating any new threats for either side. It is not lazy if you check carefully that your ...
18
Consider the position before 15. Nc4.
[FEN "r1b2b1r/ppp1k1pp/8/4p1N1/4P2n/1B1q4/PP1N1PPP/R2Q1RK1 w - - 0 15"]
You have developed two knights, a bishop, and castled. Your opponent has developed a queen and a knight, and his king is stuck in the center.
In other words, you have a massive dynamic advantage! You are already in position to leverage ...
2
For most such questions perhaps a chess problem engine like Popeye can easily solve it.
However, the kind of goals your question is indicating like extinction of opponent pieces can also be set in configurable chess variant engines, e.g., Fairy-Stockfish or Sjaak II. I would assume that in most cases this will be the easier and faster solution, assuming that ...
3
The Whale variation
[FEN ""]
1.e4 e5 2. c4
is quite an offbeat opening. It shares obvious similarities with the English opening, and it sometimes transposes, but it has some serious drawbacks. The obvious one is the gaping hole it leaves on d4. Another one is that it leads to very closed positions, which intermediate players usually do not fin ...
5
This position is more complicated than it first looks! You need to see more than one move deep to understand the difference between 15...Rxd1 and other moves.
As Scounged has pointed out, you already have an advantage of about +3 because you're a piece up. The problem is that white is attacking your pawn on b7. So some time soon, you want to play a move ...
4
Let us list white's trumps in this position:
White is ahead in development
White's king is safer than black's
If we list black's trumps, we find the following:
BLACK IS AN ENTIRE BISHOP UP FOR A MERE PAWN!
If we simply count the number of trumps for each side, we see that white has seemingly more trumps than black. But here black's trump carries more ...
2
You can use 2 programs to do that.
Use pgn-extract to format the pgn files in a good format. This pgn-extract is available at this url: download pgn-extract
You need this CLI tool: UCI analyzer
Lastly, you need a chess engine that supports UCI installed, such as Stockfish.
I used these tools to perform a massive analysis of 2 million games on multiple ...
3
For a human, winning Q/R against a computer is more difficult than expected. Indeed, the key is not checking itself but avoiding that the rook checks the king away. Of course, the best concrete strategy in some position may giving some checks first, just to lead the Q to the correct field without losing a tempo. Note that in the final position the Q controls ...
1
Yes, there is indeed a full solution. There is a move that you missed that wins for White after 1. Ba6!.
[FEN "8/8/7B/K7/8/7p/4Bkp1/6Rb w - - 0 1"]
1. Ba6 h2 2. Bf8!
Now, no matter what Black plays, White will play 3. Bc5 and control g1. Thus, White is able to prevent Black from obtaining a queen for long. As such, White wins as stipulated.
...
3
I think the (already good) answer left out a very concrete important point.
White has a scary lead in development. Standard plan: rip open a few lines and massacre the king who is a sitting duck in the center. Of course Black has a plan too: run for the hills. Castle short: only possible after e6, but the kingside looks like Swiss cheese. Or d5, which is the ...
2
This is answered by Wikipedia's article on the Ruy Lopez, Exchange variation:
If White can exchange all pieces, the pawn structure is a big advantage in the endgame. Max Euwe gave the pure pawn ending (without pieces) resulting after the exchange of White's d-pawn for Black's e-pawn as a win for White. The winning procedure is detailed in Secrets of Pawn ...
2
In this position you basically pawn up. Even though it is not easy to win, There are two things you must remember
1- Centralize your King. This is almost important in every endgame position.
2- Do not allow your opponent to fix his queen-side pawn structure such as exchanging the pawns.
After do that, You must use 4 to 3 pawn structure with forcing the king-...
5
Humans VS machines in the 60s-70s:
one way of putting this accomplishment in perspective is by regarding the results of the match between Bobby Fischer and MIT Greenblatt computer program (Running Mac-Hack, a software written by the great Richard Greenblatt himself) in 1977.
I do believe that in 1977, Fisher was still very representative of what humans can ...
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