MESON Chess Problem Database

Problem Display
PID: 248100 (8/8/8/2Bbk2P/Q5P1/8/7K/8 w - - 0 1)

Markx, BJM

Tijdschrift vd NSB, 1899

8/8/8/2Bbk2P/Q5P1/8/7K/8

#2

5 + 2

4331 Schachminiaturen II 1903
5454 Near Snap 2021
3713 Snap 2021
6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Qd4#
  • Tries
    • 1.Qf4+?
      • 1...Ke6
        • 2.Qf5#
      • 1...Kxf4!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qf5#
      • 1...Ke4
        • 2.Qf5#
      • 1...Kf4
        • 2.Qf5#
      • 1...Kf6
        • 2.Qe7#
      • 1...Be4
        • 2.Qd6#
      • 1...Be6
        • 2.Qd4#

Anticipated by 57310(1872), 207506(1872), 212972(1882)

This anticipates 64275(1926), 142031(1926)

This is a version of 5103

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::QAB1(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(B)
      • Refutation
        • K(b);S_FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(b);P-FLIGHT::QAB1(B)
      • K(b);S_FLIGHT::QAR1(B)
      • K(b);S_FLIGHT::QAB1(B)
      • B(a);SBLOCK::QAB1(B)
      • B(a);OGATE,SBLOCK::QAB1(B)
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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).