MESON Chess Problem Database

Problem Display
PID: 207252 (8/8/8/2K1Bk2/Q7/8/8/7R w - - 0 1)

Schultz, Johan Gustaf

Australasian (The), 1869

8/8/8/2K1Bk2/Q7/8/8/7R

#2

4 + 1

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rh6?
      • threat
        • 2.Qf4#
      • 1...Kg5
        • 2.Qf4#
      • 1...Kxe5!
    • 1.Qe8?
      • 1...Kg4
        • 2.Qh5#
      • 1...Kg5
        • 2.Qh5#
      • 1...Ke4!
    • 1.Qf4+?
      • 1...Kg6
        • 2.Rh6#
        • 2.Qf6#
      • 1...Ke6!
  • Keys
    • 1.Rh5+!
      • 1...Ke6
        • 2.Qe8#
      • 1...Kg6
        • 2.Qe8#

FEATURES

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