MESON Chess Problem Database

Problem Display
PID: 214279 (7B/8/p1P2r2/P3kN2/5p1K/1R3p2/1PR2P2/QB6 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1991

7B/8/p1P2r2/P3kN2/5p1K/1R3p2/1PR2P2/QB6

#2

11 + 5

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Rc5#
    • 1...Kxf5
      • 2.Re2#
  • Tries
    • 1.Re3+?
      • 1...Kd5
        • 2.Ba2#
        • 2.Qa2#
      • 1...Kxf5
        • 2.Rc1#
        • 2.Rd2#
        • 2.Rce2#
        • 2.Rcc3#
        • 2.Rc4#
        • 2.Rc5#
      • 1...fxe3!
    • 1.Rb5+?
      • 1...Ke4
        • 2.Rc1#
        • 2.Rd2#
        • 2.Re2#
        • 2.Rc3#
        • 2.Rc4#
        • 2.Rcc5#
      • 1...Ke6
        • 2.Ba2#
        • 2.Qa2#
      • 1...axb5!
  • Keys
    • 1.Qa2!
      • 1...Ke4
        • 2.Rc5#
      • 1...Kd5
        • 2.Re3#
      • 1...Kxf5
        • 2.Re2#
      • 1...Ke6
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINR(e),P-FLIGHT::B(B)+R(D)
    • K(c);N_SPINR(e),P-FLIGHT,XS(I)::B(B)+R(D)
  • Tries
    • Try
      • R(F);CHECK
      • Refutation
        • P(b);XR(F)
    • Try
      • R(F);CHECK
      • Refutation
        • P(d);XR(F)
  • Actual
    • Q(A);
    • Vars
      • K(c);N_SPINR(e),P-FLIGHT::B(B)+R(D)
      • K(c);N_SPINR(e),P-FLIGHT::QAB(A)+R(F)
      • K(c);N_SPINR(e),P-FLIGHT,XS(I)::B(B)+R(D)
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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).