3

We know that a (absolutely) pinned piece can move and give a check, and the check can even be a mate.

The following is an example for such a checkmate.

[FEN "8/8/2k5/8/4p2b/r7/3RKPBr/q7 w - - 0 1"]

1. f4 exf3#

Source: A. Skodras, Quora

I am interested in knowing whether this has ever occurred in a master game; say, both opponents are rated 2000+ and the game was competitive (e.g., in a tournament).

I suppose this happening in a game would be rare, let alone in a master game. But, the first impression (I had) that "moving a pinned piece and giving check cannont be a good move" is wrong.

[Title "Schatz vs. Giegold, Hof (1928)"]
[FEN "7k/pb5q/1p3p2/2p1p1p1/6P1/QP4KR/P4PP1/1B5r b - - 0 1"]

1... Qh4+

Source: Martin Weteschnik, Understanding Chess Tactics (btw, this is one of the best books on how tactics work).

Here, the move 1... Qh4+ is the best move (along with 1... Rxh3+ which is a slightly slower mate).

Addendum

CQL may be the best solution for questions of this type. One way I can think of to form a cql query is the following (and its flipcolour variant):

  1. white gives check (and mates black) in the current position,
  2. the piece last moved is X,
  3. if piece X is removed from previous position, then white is in check.

I don't know how (or whether) step 3 can be expressed in cql.

5
  • You can use the filter pin to identify pinned pieces. – kamekura 2 days ago
  • @kamekura Thanks. Is there a way to identify absolute pin? – Cyriac Antony 2 days ago
  • In CQL, the value of pin is the set of squares on which there is a piece pinned against its own king by a piece of the opposing color. I.e. "pin" means absolute pin. – kamekura 2 days ago
  • Terminological nitpick: "Absolutely" pinned means, well, absolutely. (At least in German, where the three kinds of pin are clearly distinguished: "echt", "halbecht", "unecht".) In problemists terms, you describe a "Pelle move" (a move along the pin line, which includes the very special en passant case). – Hauke Reddmann 2 days ago
  • @HaukeReddmann That's interesting. It is unfortunate that "absolute pin" in English can mean two different things. The definition I am using is "pinned to the king". – Cyriac Antony yesterday

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.