MESON Chess Problem Database

Problem Display
PID: 231147 (6K1/8/8/5kB1/5P2/3R4/Q7/8 w - - 0 1)

Giobel, Bengt Rudolf

Aftonbladet, 1927

6K1/8/8/5kB1/5P2/3R4/Q7/8

#2

5 + 1

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qd5#
    • 1...Kg6
      • 2.Qf7#
  • Tries
    • 1.Kf7?
      • threat
        • 2.Qe6#
      • 1...Ke4
        • 2.Qd5#
      • 1...Kg4!
    • 1.Kg7?
      • 1...Ke4
        • 2.Qd5#
      • 1...Kg4!
    • 1.Kh7?
      • 1...Ke4
        • 2.Qd5#
      • 1...Kg4!
    • 1.Kf8?
      • 1...Ke4
        • 2.Qd5#
      • 1...Kg6
        • 2.Qf7#
      • 1...Kg4!
    • 1.Re3?
      • threat
        • 2.Qe6#
      • 1...Kg6
        • 2.Qf7#
      • 1...Kg4!
    • 1.Rg3?
      • 1...Kg6
        • 2.Qf7#
      • 1...Ke4!
    • 1.Rh3?
      • 1...Kg4
        • 2.Qe6#
      • 1...Kg6
        • 2.Qb1#
        • 2.Qe6#
        • 2.Qf7#
        • 2.Qc2#
      • 1...Ke4!
    • 1.Rd4?
      • 1...Kg6
        • 2.Qf7#
      • 1...Kg4!
    • 1.Qb3?
      • 1...Ke4
        • 2.Qd5#
      • 1...Kg6
        • 2.Qf7#
      • 1...Kg4!
    • 1.Qc4?
      • 1...Kg6
        • 2.Qf7#
      • 1...Kg4!
    • 1.Qd5+?
      • 1...Kg6
        • 2.Qf7#
      • 1...Kg4!
    • 1.Qf7+?
      • 1...Ke4
        • 2.Qd5#
        • 2.Qg6#
        • 2.Qh7#
      • 1...Kg4!
    • 1.Qg2?
      • 1...Ke6
        • 2.Qh3#
        • 2.Qe4#
        • 2.Qd5#
        • 2.Qg4#
      • 1...Kg6!
    • 1.Qa6?
      • 1...Ke4
        • 2.Qg6#
      • 1...Kg4!
    • 1.Qa7?
      • 1...Ke4
        • 2.Qh7#
      • 1...Ke6
        • 2.Qd7#
        • 2.Qf7#
      • 1...Kg6
        • 2.Qf7#
        • 2.Qh7#
      • 1...Kg4!
  • Keys
    • 1.Qh2!
      • 1...Ke4
        • 2.Qh7#
      • 1...Kg4
        • 2.Qh3#
      • 1...Ke6
        • 2.Qh3#
      • 1...Kg6
        • 2.Qh7#

FEATURES

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