Check answered with a checkmate
This question was raised on the Chess Reviews discussion group:Is it possible to create a CQL query to find games in which Black (or White) replies to a check with a checkmate?
It's easy to construct such a query in CQL using the :sequence keyword:
(match
(position
:sequence (
(position :check) ; Find a position where one side is in check
(position :mate) ; ...which is answered with a checkmate
)
)
)
(position
:sequence (
(position :check) ; Find a position where one side is in check
(position :mate) ; ...which is answered with a checkmate
)
)
)
This CQL query returns 153 games from HugeBase which contains 3 million games.
Here is a nice example from the game Nigel Short - Alexander Morozevich (Russia vs. Rest of the World, 2002. Round 4). In a completely lost position Short played 53. Nc5+ and allowed Morozevich to checkmate with 53...Nxc5#.
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