MESON Chess Problem Database

Problem Display
PID: 236534 (8/7Q/1K2N1r1/5k2/6N1/8/6P1/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Rochade Europa, 2014

8/7Q/1K2N1r1/5k2/6N1/8/6P1/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxg4
      • 2.Qh3#
  • Tries
    • 1.Kc5?
      • 1...Ke4
        • 2.Qxg6#
      • 1...Kxg4
        • 2.Qh3#
      • 1...Kxe6!
    • 1.Kc7?
      • 1...Kxg4
        • 2.Qh3#
      • 1...Kxe6
        • 2.Qd7#
      • 1...Ke4!
  • Keys
    • 1.Kc6!
      • 1...Ke4
        • 2.Qxg6#
      • 1...Kxg4
        • 2.Qh3#
      • 1...Kxe6
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINR(b),OGATEB,S_FLIGHT,XS(B)::QAB1(E)
  • Tries
    • Try
      • K(C);N_SPINS(D),S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB(E),XR(b)
        • K(a);N_SPINR(b),OGATEB,S_FLIGHT,XS(B)::QAB1(E)
      • Refutation
        • K(a);N_SPINR(b),S_FLIGHT,XS(D)
    • Try
      • K(C);N_SPINS(D),S_FLIGHT
      • Vars
        • K(a);N_SPINR(b),OGATEB,S_FLIGHT,XS(B)::QAB1(E)
        • K(a);N_SPINR(b),OGATEB,S_FLIGHT,XS(D)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(C);P-FLIGHT
    • Vars
      • K(a);S_FLIGHT::QAB(E),XR(b)
      • K(a);N_SPINR(b),OGATEB,S_FLIGHT,XS(B)::QAB1(E)
      • K(a);N_SPINR(b),OGATEB,S_FLIGHT,XS(D)::QAB1(E)
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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).