MESON Chess Problem Database

Problem Display
PID: 244684 (8/7K/8/4k3/Q5P1/1BR5/8/8 w - - 0 1)

Chernyavsky, Mykola Vasilovich

Problemist Ukraini, 2019

8/7K/8/4k3/Q5P1/1BR5/8/8

#2

5 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Re3+?
      • 1...Kf6
        • 2.Qf4#
      • 1...Kd6!
    • 1.Qd7?
      • 1...Kf4
        • 2.Qf5#
      • 1...Kf6
        • 2.Qg7#
      • 1...Ke4!
    • 1.Qc4?
      • 1...Kd6
        • 2.Qe6#
        • 2.Qc7#
      • 1...Kf6!
    • 1.Qa7?
      • 1...Ke4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qc7#
      • 1...Kf6
        • 2.Qg7#
      • 1...Kf4!
    • 1.g5?
      • 1...Kf5
        • 2.Rc5#
      • 1...Kd6!
  • Keys
    • 1.Rc7!
      • 1...Kd6
        • 2.Qf4#
      • 1...Kf6
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(D);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(a);S_FLIGHT::QAB(C)
      • K(a);S_FLIGHT::QAR2(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).