MESON Chess Problem Database

Problem Display
PID: 57152 (2R5/8/1p6/2bp4/n2Q2B1/Bp6/1q1R1K2/1bk5 w - - 0 1)

Guidelli, Giorgio

1st HM., Brisbane Courier, 1917-1918

2R5/8/1p6/2bp4/n2Q2B1/Bp6/1q1R1K2/1bk5

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Bxb2#
  • Tries
    • 1.Rxc5+?
      • 1...Bc2
        • 2.Rd1#
      • 1...Sc3
        • 2.Bxb2#
      • 1...Sxc5
        • 2.Bxb2#
        • 2.Qxb2#
      • 1...bxc5!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Rxb2#
      • 1...Qxa3
        • 2.Ra2#
      • 1...Bc2
        • 2.Rd1#
      • 1...Sc3
        • 2.Bxb2#
      • 1...d4
        • 2.Qe1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD,N_SPINB(f)::B(C),XQ(c)
  • Tries
    • Try
      • R(F);CHECK,N_SPINQ(D),XB(f)
      • Vars
        • B(a);N_PINR(A),P_SPINB(a)::R1(A)
        • S(e);P_SPINS(e)::B(C),XQ(c)
      • Refutation
        • P(h);XR(F)
  • Actual
    • Q(D);
    • Threat
      • QAB(D)+R(A),XQ(c)
    • Vars
      • Q(c);N_PINR(A),N_SPINQ(c),XB(C)::QAB(D)+R(A)
      • B(a);N_PINR(A),N_SPINB(f),SBLOCK::QAB(D)+R(A),DCHECK
      • S(e);N_GUARD,N_SPINB(f)::B(C),XQ(c)
      • P(g);N_PINQ(D)::QAR2(D)
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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).