MESON Chess Problem Database

Problem Display
PID: 222934 (8/3B4/3p4/4p3/4k3/1K2N3/8/6Q1 w - - 0 1)

Uhl, W

Bruderschaft, 1886

8/3B4/3p4/4p3/4k3/1K2N3/8/6Q1

#2

4 + 3

6490 yacpdb 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sg4?
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf4
        • 2.Qe3#
      • 1...Kd5
        • 2.Sf6#
      • 1...d5
        • 2.Qe3#
      • 1...Kf3!
  • Keys
    • 1.Sd1!
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3
        • 2.Qg4#
      • 1...Kf4
        • 2.Qe3#
        • 2.Qg4#
      • 1...Kd5
        • 2.Sc3#
      • 1...d5
        • 2.Qe3#

Anticipated by 120596(1880)

This anticipates 158981(1971)

FEATURES

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