MESON Chess Problem Database

Problem Display
PID: 239652 (n7/1K2Q2P/3RpP2/4p2p/4k1BP/6P1/3P1p2/7n w - - 0 1)

Maleika, Gerhard

Zaldo MT (Problemas), 2019

n7/1K2Q2P/3RpP2/4p2p/4k1BP/6P1/3P1p2/7n

#2

9 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qe8?
      • threat
        • 2.Qa4#
        • 2.Qc6#
        • 2.Qg6#
      • 1...Sxg3
        • 2.Qa4#
      • 1...f1Q
        • 2.Qc6#
      • 1...f1B
        • 2.Qc6#
        • 2.Qg6#
      • 1...f1R
        • 2.Qa4#
        • 2.Qc6#
      • 1...Sb6
        • 2.Qg6#
      • 1...Sc7
        • 2.Qa4#
        • 2.Qg6#
      • 1...hxg4!
  • Keys
    • 1.Qxe6!
      • threat
        • 2.Qc4#
        • 2.Qd5#
        • 2.Qf5#
      • 1...Sxg3
        • 2.Qc4#
      • 1...hxg4
        • 2.Qxg4#
      • 1...f1Q
        • 2.Qd5#
      • 1...f1B
        • 2.Qd5#
        • 2.Qf5#
      • 1...f1R
        • 2.Qc4#
        • 2.Qd5#
      • 1...Sb6
        • 2.Qf5#
      • 1...Sc7
        • 2.Qc4#
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(H);
      • Threat
        • DUALS(3)
      • Vars
        • S(a);XP(B)::QAR(H)
        • P(b);::QAB(H)
        • S(g);::QAB(H)
      • Refutation
        • P(e);XB(C)
  • Actual
    • Q(H);P_PINP(d),XP(f)
    • Threat
      • DUALS(3)
    • Vars
      • S(a);XP(B)::QAR2(H)
      • P(e);OGATE,XB(C)::QAR2(H),XP(e)
      • P(b);::QAB1(H)
      • S(g);::QAB1(H)
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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).