MESON Chess Problem Database

Problem Display
PID: 95552 (2Q1n3/p7/8/3P1R2/3Bk2K/r3p1P1/2P5/8 w - - 0 1)

Bobrov, Pavel Pavlovich

Duna Zeitung, 1907

2Q1n3/p7/8/3P1R2/3Bk2K/r3p1P1/2P5/8

#2

7 + 5

6490 yacpdb 2009
5454 Near Snap 2015

SOLUTION

  • SOUND
  • Tries
    • 1.Qc6?
      • threat
        • 2.Rf4#
      • 1...Kxf5
        • 2.Qe6#
      • 1...Kxd4!
    • 1.Qxe8+?
      • 1...Kxf5
        • 2.Qe6#
      • 1...Kxd4!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Rf4#
      • 1...Kxd4
        • 2.Qb4#
      • 1...Kxf5
        • 2.Qh7#

This anticipates 154456(1908)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • R1(F)
      • Vars
        • K(c);S_FLIGHT,XR(F)::QAB1(G)
      • Refutation
        • K(c);P-FLIGHT,XB(C)
    • Try
      • Q(G);CHECK,XS(e)
      • Vars
        • K(c);S_FLIGHT,XR(F)::QAB1(G)
      • Refutation
        • K(c);P-FLIGHT,XB(C)
  • Actual
    • Q(G);
    • Threat
      • R1(F)
    • Vars
      • K(c);OGATEB,P-FLIGHT,XB(C)::QAR2(G)
      • K(c);OGATEB,S_FLIGHT,XR(F)::QAB(G)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).