MESON Chess Problem Database

Problem Display
PID: 65114 (1K2RB2/5p2/1P3p1r/1ppkNp1n/3Nn3/1P6/7p/Q4bbB w - - 0 1)

Doukhan, Gerard

Wiedenhoff, Claude

Prize, Schweizer Schach-Magazin, 1987-1990

1K2RB2/5p2/1P3p1r/1ppkNp1n/3Nn3/1P6/7p/Q4bbB

#2

9 + 12

4827 FIDE Album (1989-1991) 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd4
      • 2.Qa8#
    • 1...cxd4
      • 2.Qa8#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Rd8#
      • 1...Bxd4
        • 2.Qa8#
      • 1...cxd4
        • 2.Qa8#
      • 1...fxg4
        • 2.Bxe4#
      • 1...Bg2!
    • 1.Sxf7?
      • threat
        • 2.Rd8#
      • 1...Bxd4
        • 2.Qa8#
      • 1...cxd4
        • 2.Qa8#
      • 1...Bg2!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sc7#
      • 1...fxe5
        • 2.Qa8#
      • 1...fxe6
        • 2.Rd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(b);SBLOCK,XS(D)::QAB(A)
    • P(f);SBLOCK,XS(D)::QAB(A)
  • Tries
    • Try
      • S(E);
      • Threat
        • R(H)
      • Vars
        • B(b);SBLOCK,XS(D)::QAB(A)
        • P(f);SBLOCK,XS(D)::QAB(A)
        • P(h);N_GUARD,XS(E)::B(B),XS(d)
      • Refutation
        • B(a);N_SPINS(d)
    • Try
      • S(E);XP(l)
      • Threat
        • R(H)
      • Vars
        • B(b);SBLOCK,XS(D)::QAB(A)
        • P(f);SBLOCK,XS(D)::QAB(A)
      • Refutation
        • B(a);N_SPINS(d)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • P(j);SBLOCK,XS(E)::QAB(A)
      • P(l);SBLOCK,XS(D)::R(H)
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).