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:
Seriesmate: a directmate with White playing a series of moves without reply to checkmate Black (the seriesmover analogue to the directmate).
Serieshelpmate: a helpmate in which Black plays a series of moves without reply after which White plays one move to checkmate Black (the seriesmover analogue to the helpmate).
Seriesselfmate: a selfmate in which White plays a series of moves leading to a position in which Black is forced to give mate (the seriesmover analogue to the selfmate).
Seriesreflexmate: a reflexmate in which White plays a series of moves leading to a position in which Black can, and therefore must, give mate. Further, White is obliged to mate whenever he can, therefore he has to avoid in his series of moves a position in which he would have mating possibility (the seriesmover analogue to the reflexmate).
Thomas Rayner Dawson Fairy Chess Review, 1947
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Serieshelpmate in 17 moves.
Thus a serieshelpmate in n moves consists of n legal unique moves by Black (all but possibly the last non-checking moves) followed by one move by White that mates Black. To the right is a serieshelpmate in seventeen by Thomas Rayner Dawson (published in Fairy Chess Review, 1947). An effective way to solve long serieshelpmates such as this is to envisage a position in which Black could be checkmated, and then to work out how such a problem could be reached. Here, with just one knight, the only way to checkmate Black is to have the black king in the corner and another black piece on a2, allowing Nb3 giving mate. It might seem there are many ways to do this, but the need to avoid exposing the white king to check means that there is only one. The piece on a2 has to be a rook, since if it is a queen or bishop, it would cover the b3 square, and if it was a knight, it would check the king. The black king needs to walk half-way over the board to avoid the newborn rook giving check and then back to a1. (As usual, chess problems with unintended multiple solutions are considered flawed; they are often said to be cooked.) The solution here is:
seriesmover, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, august, 2021, . This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Seriesmover news newspapers books scholar JSTOR August 2021 Learn how and when to remove this message This article uses algebraic notation to describe chess moves 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 Seriesmate a directmate with White playing a series of moves without reply to checkmate Black the seriesmover analogue to the directmate Serieshelpmate a helpmate in which Black plays a series of moves without reply after which White plays one move to checkmate Black the seriesmover analogue to the helpmate Seriesselfmate a selfmate in which White plays a series of moves leading to a position in which Black is forced to give mate the seriesmover analogue to the selfmate Seriesreflexmate a reflexmate in which White plays a series of moves leading to a position in which Black can and therefore must give mate Further White is obliged to mate whenever he can therefore he has to avoid in his series of moves a position in which he would have mating possibility the seriesmover analogue to the reflexmate Thomas Rayner DawsonFairy Chess Review 1947abcdefgh8877665544332211abcdefghSerieshelpmate in 17 moves Thus a serieshelpmate in n moves consists of n legal unique moves by Black all but possibly the last non checking moves followed by one move by White that mates Black To the right is a serieshelpmate in seventeen by Thomas Rayner Dawson published in Fairy Chess Review 1947 An effective way to solve long serieshelpmates such as this is to envisage a position in which Black could be checkmated and then to work out how such a problem could be reached Here with just one knight the only way to checkmate Black is to have the black king in the corner and another black piece on a2 allowing Nb3 giving mate It might seem there are many ways to do this but the need to avoid exposing the white king to check means that there is only one The piece on a2 has to be a rook since if it is a queen or bishop it would cover the b3 square and if it was a knight it would check the king The black king needs to walk half way over the board to avoid the newborn rook giving check and then back to a1 As usual chess problems with unintended multiple solutions are considered flawed they are often said to be cooked The solution here is 1 Ka2 2 Ka3 3 Kb4 4 Kc3 5 Kd3 6 Ke2 7 Ke1 8 f1 R 9 Rf2 10 Ke2 11 Kd3 12 Kc3 13 Kb4 14 Ka3 15 Ka2 16 Ka1 17 Ra2 Nb3 References edit Wong Peter Series movers OzProblems Retrieved 12 August 2021 nbsp This chess related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Seriesmover amp oldid 1172743121, wikipedia, wiki, book, books, library,
