MESON Chess Problem Database

Problem Display
PID: 225053 (5K1B/7p/1N6/3p4/1P1N4/P1kp4/1p3RR1/nr6 w - - 0 1)

Moen, Kabe

The Problemist Supplement, 2020

5K1B/7p/1N6/3p4/1P1N4/P1kp4/1p3RR1/nr6

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Sb5#
    • 1...d2
      • 2.Rf3#
      • 2.Rg3#
  • Tries
    • 1.Rf6?
      • threat
        • 2.Rc6#
      • 1...Kxd4
        • 2.Re6#
      • 1...d2
        • 2.Rf3#
      • 1...Sb3
        • 2.Sb5#
      • 1...Rf1!
    • 1.Rf7?
      • threat
        • 2.Rc7#
      • 1...d2
        • 2.Rg3#
        • 2.Rf3#
      • 1...Sb3
        • 2.Sb5#
      • 1...Rf1!
    • 1.Rg6?
      • threat
        • 2.Rc6#
      • 1...d2
        • 2.Rf3#
        • 2.Rg3#
      • 1...Sb3
        • 2.Sb5#
      • 1...hxg6!
  • Keys
    • 1.Rg7!
      • threat
        • 2.Rc7#
      • 1...Kxd4
        • 2.Re7#
      • 1...d2
        • 2.Rg3#
      • 1...Sb3
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::B(H)+S(E),DCHECK
  • Tries
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • K(d);OGATEB,S_FLIGHT,XS(E)::B(H)+R(A)
        • P(e);OGATEB::R(A)
        • S(a);SBLOCK::S(E)
      • Refutation
        • R(b);P_PINR(A)
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • S(a);SBLOCK::B(H)+S(E),DCHECK
      • Refutation
        • R(b);P_PINR(A)
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • S(a);SBLOCK::B(H)+S(E),DCHECK
      • Refutation
        • P(g);XR(B)
  • Actual
    • R(B);
    • Threat
      • R(B)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(E)::B(H)+R(B)
      • P(e);OGATEB::R(B)
      • S(a);SBLOCK::S(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).