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How did you evaluate the position before deciding to do the exchange sacrifce?
I have an old version "Junior " and it helps me to analyse.Interesting what could show a more new chess program.
Full of tension is the line after 7.c3 :
( obviously, once sacrificed on e4 , the knight has no more fear for his life and continue to sacrifice itself on " f2 " ;)
Black has only 2 pawns for the knight, which normally is not sufficient compensation , but here white has problems with their king , and it is dominant factor.
But position is still far not clear.
White can play 9.Be2 instead of 9.d4 :
Which side is better here ? I don't know.But i am curious about the position and am ready to play it as black.
On 9.Be2 it is even better 9...Nxf3 :
How to estimate this position ? I prefer black .
Another game i posted here : A correspondence game
Original puzzles of high quality you can find here : Asorski
All the lines in this game are like this one - not clear and not easy to estimate. I will stop with analyzing it - not enough time recently .
I think Holmes haven't posted this puzzle :
white to play and win
The authors of the puzzle above are Daniel Novomesky and Lubo Siran - on the picture - both on the right .
white to play and win
Nice very similar to the first puzzle I couldn't find Qd3!!
Recently i met a nice helpmate puzzle . Some information about helpmates :
A helpmate is a kind of chess problem in which black moves first and helps white to checkmate him within a specified number of moves. In a helpmate in two (sometimes abbreviated to h#2), for example, the solution consists of a black move, a white move, a black move, and then another white move, giving checkmate. It should be noted that although the two sides are cooperating, all moves must be legal according to the rules of chess.
the aothor of the puzzle is :
Virgilio Fenoglio (20-02-1902 - 1990) Argentinian composer
Helpmate in 2 moves
Ra7 Nf5 Rf7 Rh8 mate
Correct - this is one of the 2 solutions .
Here is the second solution for the helpmate puzzle :
helpmate in 3 moves
Ideal-Mate Review 1997
helpmate in 3 moves
The next puzzle is in traditional chess rules :
White to play and win
Mario Matouš (Czech Republic)
1st Prize, Polášek and Vlasák 50 JT 2007
What is the shortest game to the position?
Chess in Australia, Nov/Dec 1987
That's a very challenging puzzle.
I had a clear strategy to achieve an ideal path, but I've encountered too many problems. The main problem was, that for the knights to reach their final position, it takes a minimum of 8 moves for each side - that is 4 moves a knight. However, by doing that I kept blocking the long diagonals where other pieces now couldn't move through. So, not finding a quick and simple solution, I went for 5 moves a knight, for a total of 10 moves for each side, which is clearly inferior.
What's worse, is that I got to the position half a move late (with the wrong side to move), which calls for a useless waiting move from black to achieve the correct side to move. This makes it pretty obvious to me that the best solution is in 45 moves or less.
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