MESON Chess Problem Database

Problem Display
PID: 162885 (1b6/3p1Q2/8/B1prkNNR/2b2p2/3p1R2/1K6/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

stern, 1992

(First published on Thu May 7 1992)

1b6/3p1Q2/8/B1prkNNR/2b2p2/3p1R2/1K6/8

#2

7 + 8

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...d6
      • 2.Qe6#
  • Tries
    • 1.Se3?
      • threat
        • 2.Qxf4#
      • 1...Kd4
        • 2.Bc3#
      • 1...Kd6
        • 2.Qf6#
      • 1...fxe3
        • 2.Qf4#
        • 2.Qf6#
      • 1...Rd4!
    • 1.Sd6?
      • threat
        • 2.Qxf4#
      • 1...Kd4
        • 2.Bc3#
        • 2.Qxf4#
      • 1...Kxd6
        • 2.Qf6#
      • 1...Rd4
        • 2.Sge4#
      • 1...Rxd6!
    • 1.Se7?
      • threat
        • 2.Qxf4#
      • 1...Kd4
        • 2.Bc3#
      • 1...Kd6
        • 2.Se4#
        • 2.Qf6#
      • 1...Rd4!
    • 1.Qe8+?
      • 1...Kf6
        • 2.Se4#
        • 2.Sh7#
      • 1...Kxf5!
  • Keys
    • 1.Sg3!
      • threat
        • 2.Qxf4#
      • 1...Kd4
        • 2.Bc3#
      • 1...Kd6
        • 2.Qf6#
      • 1...fxg3
        • 2.Qf4#
        • 2.Qf6#
      • 1...Rd4
        • 2.S5e4#
      • 1...Rd6
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(g);N_GUARD::QAR1(G)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(G),XP(c)
      • Vars
        • K(f);S_FLIGHT::B(C)
        • K(f);S_FLIGHT::QAR2(G)
      • Refutation
        • R(e);
    • Try
      • S(D);
      • Threat
        • QAB1(G),XP(c)
      • Vars
        • K(f);S_FLIGHT,XS(D)::QAR2(G)
        • R(e);SBLOCK::R(F)+S(E)
      • Refutation
        • R(e);XS(D)
    • Try
      • S(D);
      • Threat
        • QAB1(G),XP(c)
      • Vars
        • K(f);S_FLIGHT::B(C)
      • Refutation
        • R(e);
    • Try
      • Q(G);CHECK
      • Refutation
        • K(f);P-FLIGHT,P_SPINP(c),XS(D)
  • Actual
    • S(D);
    • Threat
      • QAB1(G),XP(c)
    • Vars
      • K(f);S_FLIGHT::B(C)
      • K(f);S_FLIGHT::QAR2(G)
      • R(e);SBLOCK::R(F)+S(E)
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).