MESON Chess Problem Database

Problem Display
PID: 205832 (3k4/5P1r/2b3N1/1Br5/R3nBN1/5p2/7p/7K w - - 0 1)

Kissling, Christian

Badische Neueste Nachrichten, 1996

3k4/5P1r/2b3N1/1Br5/R3nBN1/5p2/7p/7K

#2

7 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.f8Q#
      • 2.f8R#
    • 1...Bb7
      • 2.f8Q#
      • 2.f8R#
    • 1...Ba8
      • 2.f8Q#
      • 2.f8R#
    • 1...Be8
      • 2.fxe8Q#
      • 2.fxe8R#
  • Tries
    • 1.f8Q+?
      • 1...Be8
        • 2.Qxe8#
      • 1...Kd7!
    • 1.f8R+?
      • 1...Be8
        • 2.Rxe8#
      • 1...Kd7!
  • Keys
    • 1.Ra8+!
      • 1...Kd7
        • 2.f8S#
      • 1...Bxa8
        • 2.f8Q#
        • 2.f8R#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(e);N_GUARD::P=Q
    • B(e);OGATE::PXB(e)=Q
  • Tries
    • Try
      • P(G);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAR1(G),XB(e)
      • Refutation
        • K(g);P-FLIGHT,P_SPINB(e)
    • Try
      • P(G);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::R1(G),XB(e)
      • Refutation
        • K(g);P-FLIGHT,P_SPINB(e)
  • Actual
    • R(B);CHECK
    • Vars
      • K(g);P-FLIGHT,P_SPINB(e)::P=S
      • B(e);XR(B)::P=Q
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).