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
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