MESON Chess Problem Database

Problem Display
PID: 272727 (6Q1/8/8/7B/4k3/K2N4/5P2/8 w - - 0 1)

Astafyeva, Aliona

Mosiashvili-75 JT (Kudesnik), 2023

6Q1/8/8/7B/4k3/K2N4/5P2/8

#2

5 + 1

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qg6#
  • Tries
    • 1.Kb2?
      • 1...Kxd3
        • 2.Qd5#
      • 1...Kf5
        • 2.Qg6#
      • 1...Kd4!
    • 1.Kb4?
      • 1...Kd4
        • 2.Qc4#
      • 1...Kf5
        • 2.Qg6#
      • 1...Kxd3!
  • Keys
    • 1.Kb3!
      • 1...Kxd3
        • 2.Qd5#
      • 1...Kd4
        • 2.Qc4#
      • 1...Kf5
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT::QAB1(E)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);N_GUARD,S_FLIGHT,XS(C)::QAR2(E)
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR1(E)
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
  • Actual
    • K(B);P-FLIGHT
    • Vars
      • K(a);N_GUARD,S_FLIGHT,XS(C)::QAR2(E)
      • K(a);N_GUARD,P-FLIGHT::QAR1(E)
      • K(a);N_GUARD,S_FLIGHT::QAB1(E)
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).