MESON Chess Problem Database

Problem Display
PID: 51439 (1b1R1BB1/r3p1QK/1p1n4/2kP1p2/p2R1P2/N4p2/1P3N2/1b2n3 w - - 0 1)

Luke, R

The Guardian, 1960

1b1R1BB1/r3p1QK/1p1n4/2kP1p2/p2R1P2/N4p2/1P3N2/1b2n3

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Sd3#
    • 1...Sc4
      • 2.Rxc4#
    • 1...Se4
      • 2.Rc4#
    • 1...Sb5
      • 2.Rc4#
    • 1...Sb7
      • 2.Rc4#
    • 1...Sf7
      • 2.Rc4#
    • 1...Sc8
      • 2.Rc4#
    • 1...Se8
      • 2.Rc4#
    • 1...e5
      • 2.Rc4#
  • Keys
    • 1.Rb4!
      • threat
        • 2.Qd4#
      • 1...Kxb4
        • 2.Qc3#
      • 1...e6
        • 2.Rb5#
      • 1...Sc2
        • 2.Sd3#
      • 1...Sc4
        • 2.Rxc4#
        • 2.Rb5#
      • 1...Sb5
        • 2.Rc4#
        • 2.Rxb5#
      • 1...e5
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • S(b);N_GUARD,S_CUTB(a)::S(B)
    • S(h);N_GUARD,P_SPINP(j)::R1(D),XS(h)
    • S(h);N_GUARD,P_SPINP(j)::R1(D)
    • P(j);P_PINQ(G),P_SPINS(h)::R1(D)
  • Actual
    • R(D);
    • Threat
      • QAB1(G)
    • Vars
      • K(e);S_FLIGHT,XR(D)::QAB1(G)
      • P(j);P_PINQ(G),P_SPINS(h)::R1(D)
      • S(b);N_GUARD,S_CUTB(a)::S(B)
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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).