MESON Chess Problem Database

Problem Display
PID: 167381 (2Q5/1R1N4/8/3k1N2/K5P1/8/2P5/8 w - - 0 1)

Locock, Charles Dealtry

Knowledge, 1896

2Q5/1R1N4/8/3k1N2/K5P1/8/2P5/8

#2

7 + 1

14868 Pirnie Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qc4#
      • 2.Qg8#
  • Tries
    • 1.Ka3?
      • 1...Ke6
        • 2.Qc4#
        • 2.Qg8#
      • 1...Ke4!
    • 1.Kb3?
      • threat
        • 2.Qc4#
      • 1...Ke6
        • 2.Qc4#
        • 2.Qg8#
      • 1...Ke4!
    • 1.Kb4?
      • threat
        • 2.Qc4#
      • 1...Ke6
        • 2.Qc4#
        • 2.Qg8#
      • 1...Ke4!
    • 1.Ka5?
      • 1...Ke6
        • 2.Qc4#
        • 2.Qg8#
      • 1...Ke4!
    • 1.Kb5?
      • threat
        • 2.Qc4#
        • 2.Qc6#
      • 1...Ke6
        • 2.Qc4#
        • 2.Qg8#
      • 1...Ke4!
    • 1.Rb3?
      • 1...Ke4
        • 2.Qc4#
      • 1...Ke6!
    • 1.Rb5+?
      • 1...Ke6
        • 2.Qe8#
      • 1...Ke4!
    • 1.Ra7?
      • 1...Ke6
        • 2.Qc4#
        • 2.Qg8#
      • 1...Ke4!
    • 1.Rc7?
      • 1...Ke6
        • 2.Qg8#
      • 1...Ke4!
    • 1.Qc3?
      • 1...Ke6
        • 2.Qb3#
        • 2.Qc4#
      • 1...Ke4!
    • 1.Qc5+?
      • 1...Ke6
        • 2.Qc4#
      • 1...Ke4!
    • 1.Qc7?
      • 1...Ke6
        • 2.Qc4#
      • 1...Ke4!
    • 1.Qe8?
      • 1...Kc6
        • 2.Qe4#
      • 1...Kc4!
    • 1.Qh8?
      • 1...Kc4
        • 2.Se3#
        • 2.Qd4#
      • 1...Kc6
        • 2.Qh1#
      • 1...Ke6
        • 2.Qg8#
      • 1...Ke4!
    • 1.c3?
      • 1...Ke6
        • 2.Qc4#
        • 2.Qg8#
      • 1...Ke4!
    • 1.c4+?
      • 1...Ke6
        • 2.Qe8#
        • 2.Qg8#
      • 1...Ke4!
  • Keys
    • 1.Qa8!
      • 1...Kc4
        • 2.Rc7#
      • 1...Ke4
        • 2.Rb4#
      • 1...Kc6
        • 2.Ra7#
      • 1...Ke6
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Threat
        • QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::QAR2(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::QAB(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);S_FLIGHT::QAB(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);S_FLIGHT::QAB(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);S_FLIGHT::QAB(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(A);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(G);
    • Vars
      • K(a);S_FLIGHT::R(E)
      • K(a);S_FLIGHT::QAB(G)+R(E),DCHECK
      • K(a);S_FLIGHT::QAB(G)+R(E)
      • K(a);S_FLIGHT::QAB(G)
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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).