MESON Chess Problem Database

Problem Display
PID: 236364 (4rb2/1rN1p3/2Q5/R3Pk2/4R2K/2p2p2/4P3/7b w - - 0 1)

Burda, Josef

Variantim, 2017

4rb2/1rN1p3/2Q5/R3Pk2/4R2K/2p2p2/4P3/7b

#2

7 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Rc4?
      • threat
        • 2.Qe4#
        • 2.Qe6#
      • 1...fxe2
        • 2.Qe6#
      • 1...e6
        • 2.Qe4#
      • 1...Rb6
        • 2.Qe4#
      • 1...f2
        • 2.Qe6#
      • 1...Rxc7!
    • 1.Rd4?
      • threat
        • 2.Qe4#
        • 2.Qe6#
      • 1...fxe2
        • 2.Qe6#
      • 1...e6
        • 2.Qe4#
      • 1...Rb6
        • 2.Qe4#
      • 1...f2
        • 2.Qe6#
      • 1...Rxc7!
  • Keys
    • 1.Rg4!
      • threat
        • 2.Qe4#
        • 2.Qe6#
        • 2.Qg6#
        • 2.e4#
      • 1...Rxc7
        • 2.Qg6#
        • 2.e4#
      • 1...fxe2
        • 2.Qe6#
        • 2.Qg6#
      • 1...Rb5
        • 2.Qe4#
        • 2.Qe6#
      • 1...Rb4
        • 2.Qe6#
        • 2.Qg6#
      • 1...Rb6
        • 2.Qe4#
        • 2.e4#
      • 1...f2
        • 2.Qe6#
        • 2.Qg6#
      • 1...e6
        • 2.Qe4#
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);XP(A)::QAB1(F)
        • P(f);::QAB1(F)
        • R(e);::QAB1(F)
        • P(c);::QAB1(F)
      • Refutation
        • R(e);XS(G)
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);XP(A)::QAB1(F)
        • P(f);::QAB1(F)
        • R(e);::QAB1(F)
        • P(c);::QAB1(F)
      • Refutation
        • R(e);XS(G)
  • Actual
    • R(B);
    • Threat
      • DUALS(4)
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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).