MESON Chess Problem Database

Problem Display
PID: 34799 (1n1rk2K/Rn2P1Pb/1N1p2p1/BP6/8/8/B3R3/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schach-Express, 1948

1n1rk2K/Rn2P1Pb/1N1p2p1/BP6/8/8/B3R3/8

#2

9 + 7

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Kxh7?
      • threat
        • 2.g8Q#
        • 2.g8R#
      • 1...Sxa5
        • 2.g8Q#
        • 2.g8R#
      • 1...Rd7
        • 2.g8Q#
        • 2.g8R#
      • 1...Rc8
        • 2.g8Q#
        • 2.g8R#
      • 1...Sc5
        • 2.g8Q#
        • 2.g8R#
      • 1...Sa6
        • 2.g8Q#
        • 2.g8R#
      • 1...Sc6
        • 2.g8Q#
        • 2.g8R#
      • 1...g5
        • 2.g8Q#
        • 2.g8R#
      • 1...Sd7!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sf6#
      • 1...Kd7+
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Kf7+
        • 2.exd8S#
      • 1...Sd7
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(I);P-FLIGHT,XB(d)
      • Threat
        • P=Q
      • Vars
        • S(c);XB(C)::P=Q
        • R(f);::P=Q
        • S(c);::P=Q
        • S(e);::P=Q
        • P(b);::P=Q
      • Refutation
        • S(e);
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(g);CHECK,P_SPINS(c),S_FLIGHT::PXR(f)=Q
      • K(g);CHECK,S_FLIGHT::PXR(f)=S
      • S(e);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).