helpmate$34386$ - definizione. Che cos'è helpmate$34386$
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Cosa (chi) è helpmate$34386$ - definizione

TYPE OF CHESS PROBLEM
Helpmate (chess)

Helpmate         
·noun A helper; a companion; specifically, a wife.
helpmate         
(helpmates)
If you say that one person is another person's helpmate, you mean that they help the other person in their life or work, especially by doing boring but necessary jobs for them such as cooking and cleaning. (OLD-FASHIONED)
N-COUNT
helpmate         
(also helpmeet)
¦ noun a helpful companion or partner.
Origin
C17 (as helpmeet): from an erroneous reading of Gen. 2:18, 20, where Adam's future wife is described as 'an help meet for him' (i.e. a suitable helper for him).

Wikipedia

Helpmate

A helpmate is a type of chess problem in which both sides cooperate in order to achieve the goal of checkmating Black. In a helpmate in n moves, Black moves first, then White, each side moving n times, to culminate in White's nth move checkmating Black. (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, published in Die Schwalbe in 1981. The solution is (recall that in helpmate solutions, Black's move is given first):

1. Kf3 Kd3 2. Bb3 Kc3 3. Ke4+ Kd2 4. Kd4 Ke2 5. Kc3 Nb4 6. Kb2 Kd2 7. Ka1 Kc1 8. Ba2 Nc2#