MESON Chess Problem Database

Problem Display
PID: 43519 (5q2/1p4np/1Q1r1r1B/2R1P1R1/P3b3/KN1pkpP1/5p2/1N3B2 w - - 0 1)

Restad, Birger

De Problemist, 1930

5q2/1p4np/1Q1r1r1B/2R1P1R1/P3b3/KN1pkpP1/5p2/1N3B2

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Rc3#
  • Keys
    • 1.Sc3!
      • threat
        • 2.Sd1#
      • 1...Bd5
        • 2.Rc6#
      • 1...Bf5
        • 2.Rg6#
      • 1...Bc6
        • 2.Rd5#
      • 1...Bg6
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(b);::QAB(J)+R(G),DCHECK
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • B(e);S_CUTR(f)::QAB(J)+R(G)
      • B(e);S_CUTR(g)::B(K)+R(I)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).