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(In a helpmate in 2 for example, sometimes abbreviated h#2, the solution consists of a Black move, a White move, a second Black move, then a second White move, giving checkmate.) Although the two sides cooperate, all moves must be legal according to the rules of chess. The example problem illustrated is a helpmate in 8 (or h#8) by Z. Maslar ...
A seriesmover is a chess problem in which one side makes a series of legal moves without reply at the end of which the other side makes a single move, giving checkmate or yielding stalemate, depending on the precise stipulation. [1] Checks cannot be given except on the last move of the series. There are various types of seriesmover:
A chess problem, also called a chess composition, is a puzzle set by the composer using chess pieces on a chess board, which presents the solver with a particular task.For instance, a position may be given with the instruction that White is to move first, and checkmate Black in two moves against any possible defence.
A type of problem in which there are two solutions, the second one reversing the roles of the colours in the first. The most common type is the duplex helpmate, in which the two solutions are: Black moves first and cooperates with White to be mated; and White moves first and cooperates with Black to be mated.
The problem is a helpmate in 2, which means Black moves first and cooperates with White to move to a position where Black is in checkmate after White's second move. This problem features grasshoppers (represented here by inverted queens), a fairy chess piece which moves along the same lines as a queen , but which must "hop" over another piece ...
So a problem with set play and three tries, for example, is a five-phase problem (since the actual solution is also a phase). Each phase may contain a number of variations (lines arising from alternatives after the initial move of a phase; in a two-mover, for example, variations in the post-key play begin on Black's first move), but variations ...
In 1936, Alain C. White published A Genius of the Two-Mover, which included 100 of the 300-or-so problems that Mansfield had composed over the past 20 years; and, in 1944, White also published Mansfield's Adventures in Composition – The Art of the Two Move Chess Problem in a limited edition. This book was re-published in the UK in 1948. [2]
The device can be understood by reference to the problem shown here, a mate in two moves (white moves first, and must checkmate black in two moves against any defence). The key (first move of the solution; see Glossary of chess problems) is 1.Nb2 (see algebraic notation). This interferes with black's rook and bishop, and whichever of those ...