MESON Chess Problem Database

Problem Display
PID: 189468 (2K5/8/8/p7/2QB4/kq2R3/b7/n7 w - - 0 1)

Yudilevich, Yuri Markovich

Deutsche Schachzeitung, 1911

2K5/8/8/p7/2QB4/kq2R3/b7/n7

#2

4 + 5

5454 Near Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...a4
      • 2.Qc5#
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qxa5#
      • 1...Qc3+
        • 2.Bc5#
      • 1...Qxe3
        • 2.Bb2#
      • 1...Qd3
        • 2.Bb2#
        • 2.Bc5#
      • 1...a4
        • 2.Qc5#

This anticipates 152801(1934)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(e);SBLOCK::QAB(B)
  • Actual
    • Q(B);
    • Threat
      • QAR2(B),XP(e)
    • Vars
      • Q(d);CHECK::B(C)
      • Q(d);N_SPINQ(d),XR(A)::B(C)
      • P(e);SBLOCK::QAB(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).