MESON Chess Problem Database

Problem Display
PID: 82388 (3R1n1Q/Bb6/1N1p4/3n4/8/1Kpkp1N1/3b4/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schweizerische Schachzeitung, 1999

3R1n1Q/Bb6/1N1p4/3n4/8/1Kpkp1N1/3b4/8

#2

6 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sa4?
      • threat
        • 2.Qd4#
      • 1...Sb6
        • 2.Sc5#
      • 1...Se6
        • 2.Qh7#
      • 1...Sf6!
    • 1.Sc4?
      • threat
        • 2.Qd4#
      • 1...Sf6
        • 2.Se5#
      • 1...Se6
        • 2.Qh7#
      • 1...Sb6!
    • 1.Sxd5?
      • threat
        • 2.Sb4#
        • 2.Sf4#
        • 2.Qd4#
      • 1...Bc1
        • 2.Qxc3#
        • 2.Qd4#
      • 1...Be1
        • 2.Qd4#
      • 1...Se6
        • 2.Sb4#
        • 2.Qh7#
      • 1...Sg6
        • 2.Sb4#
        • 2.Qd4#
      • 1...c2
        • 2.Sf4#
        • 2.Qd4#
      • 1...e2
        • 2.Sb4#
        • 2.Qd4#
      • 1...Bxd5+!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Qd4#
      • 1...Sb6
        • 2.Sc5#
      • 1...Sf6
        • 2.Se5#
      • 1...Se6
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(F)
      • Vars
        • S(e);P_SPINP(f)::S(C)
        • S(h);N_GUARD::QAB(F)
      • Refutation
        • S(e);P_SPINP(f)
    • Try
      • S(C);
      • Threat
        • QAR1(F)
      • Vars
        • S(e);P_SPINP(f)::S(C)
        • S(h);N_GUARD::QAB(F)
      • Refutation
        • S(e);P_SPINP(f)
    • Try
      • S(C);XS(e)
      • Threat
        • DUALS(3)
      • Vars
        • B(a);::QAR1(F)
      • Refutation
        • B(g);CHECK,XS(C)
  • Actual
    • S(C);
    • Threat
      • QAR1(F)
    • Vars
      • S(e);S_CUTP(f)::S(C)
      • S(h);N_GUARD::QAB(F)
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).