MESON Chess Problem Database

Problem Display
PID: 183108 (5B2/8/8/4k3/8/6K1/B1Q5/8 w - - 0 1)

Daniel, Arthur William

Illustrated London News, 1907

5B2/8/8/4k3/8/6K1/B1Q5/8

#2

4 + 1

5454 Near Snap 2018
6490 yacpdb 2018
3713 Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Kf3?
      • 1...Kd4
        • 2.Bg7#
      • 1...Kf6!
    • 1.Kg4?
      • 1...Kf6
        • 2.Qf5#
      • 1...Kd4!
    • 1.Qc5+?
      • 1...Ke4
        • 2.Bb1#
      • 1...Kf6!
  • Keys
    • 1.Bb1!
      • 1...Kd4
        • 2.Qc5#
      • 1...Kd5
        • 2.Qe4#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kf6
        • 2.Qf5#

Anticipated by 175785(1898)

This anticipates 198114(1920), 140990(1979), 79151(2002), 198080(2015)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);P-FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::QAR1(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).