Numerical chess consists of representing a legal chess position by numbers instead of pieces. The number on each square tells us the moves of the piece on it. It's that easy.
In all the diagrams in this book, the boards respond to this way of representing. Most include a question that can be answered when the puzzle is completed, so answering that question will be added to the difficulty of solving the position, which will require analyzing what had to happen in the game up to the moment represented. This guarantees added fun to the initial challenge.
Sometimes it may seem that the problem has several solutions because several pieces can go in a square with the number of moves indicated, but in those cases it will be necessary to examine what had to happen during the game to reach that position and thus you will see that in that square can only go one of the pieces that in theory could be.
This can happen or many other things that the reader will discover.
The important thing is that all the positions correspond to situations that have occurred during a game; There is no room for impossible positions such as thinking of a black bishop on square a8 and a black pawn on b7 for the simple reason that it is impossible for a black bishop to reach a8 in a chess game with a black pawn on b7 .
Castling, check and en passant are represented in special ways that are indicated in the application. The pin is represented the same. A zero on a square can be a pinned knight but not every pinned piece has a zero and not every zero is a pinned piece. A pinned queen will never have zero moves for obvious reasons.
Regarding castling, I will tell you that one move is added to the king if it can be castled and only one, even if it can be cast in both directions. To the rook that can castle, a move is added to the ones it already has. These additions are only made if they can castle at that instant whether it is their turn or not.
Logically, neither checkmate nor a draw is represented, since in both cases the game has ended and there are no more legal moves.
In the explanation of the representation of the castling it has 4 problems to solve, in those of the pin two. To these six are added nine examples, seven practices and thirty-two more difficult problems than the previous ones whose purpose is that you acquire skill.
All solutions are fully explained. My recommendation is that you never give up and just look at them to check that you have found the right solution.
This app DOES NOT CONTAIN ADS OR IN-APP PURCHASES. It is offered to you in its entirety and without advertising; and for that it is paid. The price is ridiculous and ensures that you enjoy the entire application and not be interrupted by advertising or have to pay to purchase the entire application by giving you only a sample.
With the screenshots you can get a very rough idea of what is offered.
There are more difficult problems than the ones you see there, such as ones in which you are told that one or several pieces are missing and you must deduce where they go and what they are, and others of another type that are also complicated. In any case, the ones you see in the screenshots are not easy either. Try to solve them and if you see that you like doing it, buy the application because the guarantee that you will enjoy it is sure.
If you still have doubts, you can write to me at alevife@yahoo.es and I will send you a problem solved step by step so that you can get a clearer idea.
If you have read all this, I thank you and you know that I am at your disposal to answer any questions.
Strong hugs.
In all the diagrams in this book, the boards respond to this way of representing. Most include a question that can be answered when the puzzle is completed, so answering that question will be added to the difficulty of solving the position, which will require analyzing what had to happen in the game up to the moment represented. This guarantees added fun to the initial challenge.
Sometimes it may seem that the problem has several solutions because several pieces can go in a square with the number of moves indicated, but in those cases it will be necessary to examine what had to happen during the game to reach that position and thus you will see that in that square can only go one of the pieces that in theory could be.
This can happen or many other things that the reader will discover.
The important thing is that all the positions correspond to situations that have occurred during a game; There is no room for impossible positions such as thinking of a black bishop on square a8 and a black pawn on b7 for the simple reason that it is impossible for a black bishop to reach a8 in a chess game with a black pawn on b7 .
Castling, check and en passant are represented in special ways that are indicated in the application. The pin is represented the same. A zero on a square can be a pinned knight but not every pinned piece has a zero and not every zero is a pinned piece. A pinned queen will never have zero moves for obvious reasons.
Regarding castling, I will tell you that one move is added to the king if it can be castled and only one, even if it can be cast in both directions. To the rook that can castle, a move is added to the ones it already has. These additions are only made if they can castle at that instant whether it is their turn or not.
Logically, neither checkmate nor a draw is represented, since in both cases the game has ended and there are no more legal moves.
In the explanation of the representation of the castling it has 4 problems to solve, in those of the pin two. To these six are added nine examples, seven practices and thirty-two more difficult problems than the previous ones whose purpose is that you acquire skill.
All solutions are fully explained. My recommendation is that you never give up and just look at them to check that you have found the right solution.
This app DOES NOT CONTAIN ADS OR IN-APP PURCHASES. It is offered to you in its entirety and without advertising; and for that it is paid. The price is ridiculous and ensures that you enjoy the entire application and not be interrupted by advertising or have to pay to purchase the entire application by giving you only a sample.
With the screenshots you can get a very rough idea of what is offered.
There are more difficult problems than the ones you see there, such as ones in which you are told that one or several pieces are missing and you must deduce where they go and what they are, and others of another type that are also complicated. In any case, the ones you see in the screenshots are not easy either. Try to solve them and if you see that you like doing it, buy the application because the guarantee that you will enjoy it is sure.
If you still have doubts, you can write to me at alevife@yahoo.es and I will send you a problem solved step by step so that you can get a clearer idea.
If you have read all this, I thank you and you know that I am at your disposal to answer any questions.
Strong hugs.
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