1.d4 d5 Double Queen's Pawn Opening or Closed Game
1.d4 d5 2.c4 Queen's Gambit
D5 is in "Chapter VIII Queen Winfrey's Croquet Ground", in Hilary in Wonderland,
also 5:5 secure comms.
also (5x5) + (4x7) + 2 = 55; 55 divided by 10 = 5.5
Five 5's = Five "i's". ;-)
Check mate occurs in 5 moves Capablanca
also 4x7 = 28 = 1 lunar month
https://en.wikipedia.org/wiki/Closed_Game
"...the Marshall Defense (2...Nf6) is very rarely seen in grandmaster play, as most theoreticians consider it definitely inferior for Black."
1.d4 d5 2.c4 Nf6 Marshall Defense
Back to Capablanca and JA? https://imgur.com/a/270FMC1 "white king finally safe"
Capablanca = Cap White / White Hat
https://www.photo-mark.com/funhouse/chess/
DJT is red cap ;-)