MESON Chess Problem Database

Problem Display
PID: 45032 (1K4bN/4p1B1/p2k4/5Q2/1pP5/NR1P4/3R4/8 w - - 0 1)

Planck, Charles

HM., Brighton Guardian, 1882

1K4bN/4p1B1/p2k4/5Q2/1pP5/NR1P4/3R4/8

#2

9 + 5

3316 Chess Problem Text Book 1887
15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qxd5#
    • 1...Bh7
      • 2.Qd5#
    • 1...bxa3
      • 2.Rb6#
  • Tries
    • 1.Qd7+?
      • 1...Kc5
        • 2.Bd4#
        • 2.Qc7#
      • 1...Kxd7!
    • 1.Qe5+?
      • 1...Kc6
        • 2.Qc7#
      • 1...Kd7!
  • Keys
    • 1.Qc8!
      • 1...Bxc4
        • 2.dxc4#
      • 1...bxa3
        • 2.Rb6#
      • 1...e5
        • 2.Bf8#
      • 1...e6
        • 2.Qc7#
      • 1...Bd5
        • 2.c5#
      • 1...Be6
        • 2.Qc7#
      • 1...Bf7
        • 2.Sxf7#
      • 1...Bh7
        • 2.Sf7#
      • 1...a5
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(e);N_GUARD::QAR1(F),XB(e)
    • B(e);N_GUARD::QAR1(F)
    • P(a);OGATE,XS(B)::R(C)
  • Tries
    • Try
      • Q(F);CHECK
      • Refutation
        • K(c);P-FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAR1(F)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(F);
    • Vars
      • B(e);OGATE,XP(E)::R(A)+P(D),XB(e)
      • P(a);OGATE,XS(B)::R(C)
      • P(d);OGATEB,SBLOCK::B(G)
      • P(d);SBLOCK::QAB1(F)
      • B(e);SBLOCK::P(E)
      • B(e);SBLOCK::QAB1(F)
      • B(e);N_GUARD::S(I),XB(e)
      • B(e);N_GUARD::S(I)
      • P(b);N_GUARD::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).