MESON Chess Problem Database

Problem Display
PID: 51280 (2K5/B1p4b/N3P3/2P1r3/2pk1pN1/b1p2Q2/2P5/8 w - - 0 1)

Luke, R

Manchester Guardian, 1956

2K5/B1p4b/N3P3/2P1r3/2pk1pN1/b1p2Q2/2P5/8

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Qd1#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Sc6#
      • 1...Rxe6
        • 2.Qd5#
        • 2.c6#
      • 1...Re4
        • 2.Qd1#
        • 2.c6#
      • 1...Be4
        • 2.Qf2#
      • 1...c6
        • 2.Sxc6#
      • 1...Bxb4!
  • Keys
    • 1.Sxc7!
      • threat
        • 2.Sb5#
      • 1...Rxc5
        • 2.Qd5#
      • 1...Re4
        • 2.Qd1#
      • 1...Be4
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(f);SBLOCK,S_CUTB(h)::QAR(B)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • B(h);SBLOCK,S_CUTR(f)::QAB(B)
        • P(g);::S(E),XP(g)
      • Refutation
        • B(a);XS(E)
  • Actual
    • S(E);XP(g)
    • Threat
      • S(E)
    • Vars
      • R(f);N_GUARD,P_PINS(E),P_SPINR(f),XP(D)::QAR1(B)
      • R(f);SBLOCK,S_CUTB(h)::QAR(B)
      • B(h);SBLOCK,S_CUTR(f)::QAB(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).