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The example shown is a helpmate in 2 by Henry Forsberg (published in 1935 in Revista Romana de Şah). The twins are created by substituting the black queen on a6 with a different piece. The solutions are: a) diagram position: 1. Qf6 Nc5 2. Qb2 Ra4# b) with black rook at a6: 1. Rb6 Rb1 2. Rb3 Ra1# c) with black bishop at a6: 1. Bc4 Ne1 2. Ba2 Nc2#
(This rule takes precedence over the delaying checkmate as long as possible rule.) Black cannot make a mate line longer than the number of moves given in the problem (assuming the problem's author correctly constructed the problem). For instance, a mate in 65 puzzle cannot be extended to a mate in 225.
In the Frankenstein–Dracula Variation of the Vienna Game (1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4), threatening checkmate with 4.Qh5 is the only way for White to play for an advantage. The Modern Defense, Monkey's Bum variation involves White threatening a Scholar's mate with an early Qf3.
In the first diagram with White to play, White can force checkmate as follows: 1. Rxg7+ Kh8 2. Rxh7+ Kg8 3. Rbg7# For this type of mate, the rooks on White's 7th rank can start on any two files from a to e, and although black pawns are commonly present as shown, they are not necessary to deliver the mate. The second diagram shows the final ...
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.
Some chess puzzles are not really puzzles at all. In the diagram, White is asked to checkmate Black in six moves. The joke in this case is that, by the rules of chess, White has no choice in the matter; the only legal moves lead directly to the "solution": 1. d4 b5 2. d5 b4 3. axb4 a3 4. b5 a2 5. b6 a1=any 6. b7#
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The end result of Philidor's mate: 1.Qg8+ Rxg8 2.Nf7# In chess, a smothered mate is a checkmate delivered by a knight in which the mated king is unable to move because it is completely surrounded (or smothered) by its own pieces, which a knight can jump over. The mate is usually seen in a corner of the board, since only three pieces are needed ...