MESON Chess Problem Database

Problem Display
PID: 193820 (3b4/1p3pp1/8/rRP1PkP1/2p1N3/B1P1KN1P/2B5/8 w - - 0 1)

Faber, R

Oprechte Haarlemsche Courant, 1916

3b4/1p3pp1/8/rRP1PkP1/2p1N3/B1P1KN1P/2B5/8

#2

11 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kg6
      • 2.Sf6#
    • 1...Bxg5+
      • 2.Sexg5#
  • Tries
    • 1.Rb6?
      • threat
        • 2.Sed2#
        • 2.Sf2#
        • 2.Sg3#
        • 2.Sf6#
      • 1...Bxg5+
        • 2.Sexg5#
      • 1...Bf6
        • 2.Sed2#
        • 2.Sf2#
        • 2.Sg3#
        • 2.Sxf6#
      • 1...f6
        • 2.Sed2#
        • 2.Sf2#
        • 2.Sg3#
        • 2.Sxf6#
      • 1...Bxb6!
  • Keys
    • 1.c6!
      • threat
        • 2.Sc5#
      • 1...Bxg5+
        • 2.Sexg5#
      • 1...Ke6
        • 2.Sd4#
      • 1...Kg6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::B(A)+S(G)
    • B(g);CHECK,XP(K)::B(A)+S(G),XB(g)
  • Tries
    • Try
      • R(H);
      • Threat
        • DUALS(4)
      • Vars
        • B(g);CHECK,XP(K)::B(A)+S(G),XB(g)
      • Refutation
        • B(g);P_PINP(I),XR(H)
  • Actual
    • P(I);
    • Threat
      • B(A)+S(G)
    • Vars
      • B(g);CHECK,XP(K)::B(A)+S(G),XB(g)
      • K(c);S_FLIGHT::S(E)
      • K(c);S_FLIGHT::B(A)+S(G)
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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).