; Festina_Lente.cql searches for studies where a first white pawn move is from rank-2 to rank-3 instead to rank-4
; In this cql only these moves are searched on move 1 and when in variations the first move to rank-4 is.
; So in the variations is pointed out why the slow move is better.

; Festina Lente is latin and means: "Hurry Slowly" and is famous because it was (first) used by Roman Emperor Augustus. (match
:pgn heijden.pgn
:output Festina_Lente.pgn (position .e4 :and
((position :movefrom Pe2 :moveto .e3
:wtm :shifthorizontal
:movenumber 1
)
(position :movefrom Pe2 :moveto .e4
:wtm :shifthorizontal :variationsonly
:movenumber 1))) )
After executing this with "> cql Festina_Lente.cql" there are 140 studies found in the Harold van der Heijden Database V 2015.
NB. When you see {MATCH} in the text, it means that cql has found the position asked for.

 Only 10 studies are presented here: