An html version of dobrescu.cql
; dobrescu.cql can be downloaded here.
; This searches for studies in which the configuration Ke6 be7 be4 nd5 occurs
; shifted or flipped, but in which no pieces from the original position
; are on the same square as the pattern
(match
:pgn heijden.pgn
:output out.pgn
(position
Ke6 be7 be4 nd5
:shift
:flip
:markall ; find each occurrence
:relation (:pattern ; only pay attention to the pieces we found
:shift ; allow shift
:flip ; allow flip
:originalsamecount 0 ; disregard identity matches
:samesidetomove ; same side to move
:variations ; look in variations
)
)
)