MESON Chess Problem Database

Problem Display
PID: 71351 (8/5P1p/5P1p/3K1k1P/8/6Q1/8/8 w - - 0 1)

Boros, Sandor

Magyar Sakkvilag, 1925

8/5P1p/5P1p/3K1k1P/8/6Q1/8/8

#2

5 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf6
      • 2.f8Q#
  • Tries
    • 1.Kd6?
      • 1...Kxf6
        • 2.f8Q#
        • 2.f8R#
      • 1...Ke4!
    • 1.Qg1?
      • 1...Kxf6
        • 2.f8Q#
      • 1...Kf4!
    • 1.Qg2?
      • 1...Kxf6
        • 2.f8Q#
      • 1...Kf4!
    • 1.Qe3?
      • 1...Kxf6
        • 2.f8Q#
      • 1...Kg4!
    • 1.Qg4+?
      • 1...Kxf6
        • 2.f8Q#
      • 1...Kxg4!
    • 1.Qg8?
      • 1...Kxf6
        • 2.f8Q#
      • 1...Kf4!
  • Keys
    • 1.f8B!
      • 1...Kxf6
        • 2.Qf4#

This is a version

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT,XP(D)::P=Q
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT,XP(D)::P=Q
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT,XP(D)::P=Q
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT,XP(D)::P=Q
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT,XP(D)::P=Q
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(D)::P=Q
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT,XP(D)::P=Q
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(E);
    • Vars
      • K(a);P-FLIGHT,XP(D)::QAR2(A)
HTML5 logo

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).