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Helpmate in 2: a) Black moves first and White checkmates, b) White moves first and Black checkmates A further variation is the duplex , another way of getting two problems for the price of one. The first problem is a normal helpmate; the second starts from the same position but has White moving first and helping Black to checkmate him.
Fool's mate was named and described in The Royal Game of Chess-Play, a 1656 text by Francis Beale that adapted the work of the early chess writer Gioachino Greco. [2]Prior to the mid-19th century, there was not a prevailing convention as to whether White or Black moved first; according to Beale, the matter was to be decided in some prior contest or decision of the players' choice. [3]
A prime example consists of the moves: 1.f3 e5 2.g4 Qh4# Scholar's mate – checkmate achieved by the moves: 1.e4 e5 2.Qh5 Nc6 3.Bc4 Nf6? 4.Qxf7#. The moves might be played in a different order or in slight variation, but the basic idea is the same: the queen and bishop combine in a simple mating attack on f7 (or f2 if Black is performing the ...
The scholar's mate (also known as the four-move checkmate) is the checkmate achieved by the moves: 1. e4 e5 2. Qh5 Nc6 3. Bc4 Nf6?? 4. Qxf7# The moves might be played in a different order or in slight variation, but the basic idea is the same: the queen and bishop combine in a simple mating attack on f7 (or f2 if Black is performing the mate). [46]
A selfmate is a chess problem in which White, moving first, must force the unwilling Black to deliver checkmate within a specified number of moves. Selfmates were once known as sui-mates . This article uses algebraic notation to describe chess moves.
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The earliest Babson tasks are all in the form of a selfmate, in which White, moving first, must force Black to deliver checkmate against Black's will within a specified number of moves. In 1914, Babson himself published such a problem, in which three different white pawns shared the promotions.
The moves of ordinary chess pieces only permit a maximum of two pieces giving check at once, but in some variants, triple checks and higher may be possible. For example, in the winning position shown to the left, after Black plays 1...d5 to remove the check from the bishop on c4, White plays 2.exd6 e.p.+++++.