MESON Chess Problem Database

Problem Display
PID: 241809 (Q7/1P6/2N5/3kPB2/1K6/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1929

Q7/1P6/2N5/3kPB2/1K6/8/8/8

#2

6 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.b8Q#
  • Tries
    • 1.Bh3?
      • 1...Kxc6
        • 2.b8Q#
      • 1...Ke4!
    • 1.Be4+?
      • 1...Ke6
        • 2.Qe8#
      • 1...Kxe4!
    • 1.Bg4?
      • 1...Kxc6
        • 2.b8Q#
      • 1...Ke4!
    • 1.Bc8?
      • 1...Kxc6
        • 2.b8Q#
      • 1...Ke4!
    • 1.e6?
      • 1...Kxc6
        • 2.b8Q#
      • 1...Kd6!
  • Keys
    • 1.Qd8+!
      • 1...Kxc6
        • 2.Be4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT,XS(D)::P=Q
  • Tries
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT,XS(D)::P=Q
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT,XB(C)
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT,XS(D)::P=Q
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT,XS(D)::P=Q
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(B);
      • Vars
        • K(a);S_FLIGHT,XS(D)::P=Q
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(F);CHECK
    • Vars
      • K(a);S_FLIGHT,XS(D)::B(C)
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).