MESON Chess Problem Database

Problem Display
PID: 224411 (8/3PkP2/1K4P1/8/8/8/1B6/8 w - - 0 1)

Laub, SP

Glasgow Weekly Citizen, 1888

8/3PkP2/1K4P1/8/8/8/1B6/8

#2

5 + 1

5454 Near Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.d8Q#
  • Tries
    • 1.Kc6?
      • 1...Kd8
        • 2.Bf6#
        • 2.f8Q#
      • 1...Kf8
        • 2.d8Q#
      • 1...Ke6!
    • 1.Kc7?
      • 1...Kf8
        • 2.d8Q#
      • 1...Ke6!
  • Keys
    • 1.f8S!
      • 1...Kd6
        • 2.d8Q#
      • 1...Kd8
        • 2.Bf6#
      • 1...Kxf8
        • 2.d8Q#

Anticipated by 32673(1873)

This anticipates 232306(2007)

FEATURES

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