MESON Chess Problem Database

Problem Display
PID: 53559 (7K/2NN1k1P/4R3/8/8/b2n2pR/B2r4/8 w - - 0 1)

Herberg, Adolf

Deutsche Schachblatter, 1962

7K/2NN1k1P/4R3/8/8/b2n2pR/B2r4/8

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Be7
      • 2.Rf6#
  • Tries
    • 1.Se5+?
      • 1...Kf8
        • 2.Re8#
      • 1...Sxe5!
    • 1.Rxg3?
      • threat
        • 2.Rg7#
      • 1...Bb2+
        • 2.Re5#
      • 1...Rg2
        • 2.Re2#
      • 1...Bf8!
  • Keys
    • 1.Rhh6!
      • threat
        • 2.Rhf6#
      • 1...Bb2+
        • 2.Re5#
      • 1...Rf2
        • 2.Re2#
      • 1...Be7
        • 2.Ref6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::B(A)+R(C),DCHECK
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(e);P-FLIGHT::R1(C)
      • Refutation
        • S(c);XS(E)
    • Try
      • R(B);XP(d)
      • Threat
        • R1(B)
      • Vars
        • B(b);CHECK,S_CUTR(a)::B(A)+R(C)
        • R(a);N_GUARD::B(A)+R(C)
      • Refutation
        • B(b);
  • Actual
    • R(B);
    • Threat
      • R1(B)
    • Vars
      • B(b);CHECK,S_CUTR(a)::B(A)+R(C)
      • R(a);N_GUARD::B(A)+R(C)
      • B(b);SBLOCK::B(A)+R(C),DCHECK
HTML5 logo

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).