MESON Chess Problem Database

Problem Display
PID: 242840 (8/8/8/1NpkNQK1/8/8/8/8 w - - 0 1)

Bakcsi, Gyorgy

Source?, 0000

8/8/8/1NpkNQK1/8/8/8/8

#2

4 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qg4?
      • 1...Kxe5
        • 2.Qf5#
      • 1...c4!
    • 1.Qg6?
      • 1...Kxe5
        • 2.Qf5#
      • 1...c4!
    • 1.Qd7+?
      • 1...Kxe5
        • 2.Qf5#
      • 1...Ke4!
    • 1.Qf3+?
      • 1...Kxe5
        • 2.Qf5#
      • 1...Ke6!
    • 1.Qf7+?
      • 1...Kxe5
        • 2.Qf5#
      • 1...Ke4!
  • Keys
    • 1.Qd3+!
      • 1...Kxe5
        • 2.Qf5#
      • 1...Ke6
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(B)::QAR1(C)
      • Refutation
        • P(a);
    • Try
      • Q(C);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(B)::QAR1(C)
      • Refutation
        • P(a);
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(B)::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(B)::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(B)::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);CHECK
    • Vars
      • K(b);OGATEB,P-FLIGHT,XS(B)::QAR1(C)
      • K(b);OGATE,S_FLIGHT::QAR1(C)
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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).