MESON Chess Problem Database

Problem Display
PID: 17323 (2RR1nB1/K3Pq2/p3kPp1/r1n3Q1/b1P1p3/B1b1N3/8/8 w - - 0 1)

Nanning, Frederik Willem

2nd HM., Chess Correspondent, 1946

2RR1nB1/K3Pq2/p3kPp1/r1n3Q1/b1P1p3/B1b1N3/8/8

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Rc6#
    • 1...Bd1
      • 2.Rc6#
    • 1...Bc2
      • 2.Rc6#
    • 1...Bb3
      • 2.Rc6#
    • 1...Bc6
      • 2.Rxc6#
    • 1...Sb3
      • 2.Rd6#
    • 1...Sd3
      • 2.Rd6#
    • 1...Sb7
      • 2.exf8S#
    • 1...Scd7
      • 2.e8Q#
      • 2.e8R#
  • Keys
    • 1.Sg4!
      • threat
        • 2.Qd5#
      • 1...Bxf6
        • 2.Qxf6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bc6
        • 2.Rxc6#
      • 1...Sb3
        • 2.Rd6#
      • 1...Sd3
        • 2.Rd6#
      • 1...Sb7
        • 2.exf8S#
      • 1...Scd7
        • 2.e8Q#
        • 2.e8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(d);S_CUTB(b)::R(H)
    • B(b);N_GUARD::R(H)
    • B(b);N_GUARD::R(H),XB(b)
    • S(e);::R1(I)
    • S(e);N_PINP(G)::PXS(j)=S
    • S(e);N_PINP(G)::P=Q
  • Actual
    • S(B);
    • Threat
      • QAB1(D)
    • Vars
      • B(a);OGATE,XP(E)::QAR1(D),XB(a)
      • B(a);N_GUARD::QAR1(D),XB(a)
      • B(b);N_GUARD::R(H),XB(b)
      • S(e);::R1(I)
      • S(e);N_PINP(G)::PXS(j)=S
      • S(e);N_PINP(G)::P=Q
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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).