MESON Chess Problem Database

Problem Display
PID: 2456 (r2q3r/1pp1p2p/p2p4/6p1/R7/5kBQ/8/7K w - - 0 1)

Kling, Josef

Source?, 0000

r2q3r/1pp1p2p/p2p4/6p1/R7/5kBQ/8/7K

#2

4 + 11

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Re4?
      • threat
        • 2.Qg2#
        • 2.Qg4#
      • 1...Qd7
        • 2.Qg2#
      • 1...Qc8
        • 2.Qg2#
      • 1...g4
        • 2.Qg2#
        • 2.Qxg4#
      • 1...h5
        • 2.Qg2#
      • 1...Kxe4!
    • 1.Qf1+?
      • 1...Kxg3
        • 2.Qg2#
      • 1...Ke3!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Ra3#
      • 1...Kxg3
        • 2.Qe3#

This anticipates 207102(1866)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Threat
        • DUALS(2)
      • Vars
        • Q(j);::QAB1(C)
        • P(h);::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(B)::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • R(D)
    • Vars
      • K(a);P-FLIGHT,XB(B)::QAR2(C)
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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).