MESON Chess Problem Database

Problem Display
PID: 121575 (6Q1/3p1K1p/7P/3npkp1/3Rp1p1/3b4/4nPR1/5N2 w - - 0 1)

Weiermann, A

Source?, 1980

6Q1/3p1K1p/7P/3npkp1/3Rp1p1/3b4/4nPR1/5N2

#2

7 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sef4
      • 2.Sg3#
    • 1...Sdf4
      • 2.Se3#
    • 1...e3
      • 2.Qxh7#
  • Keys
    • 1.f4!
      • threat
        • 2.Qxg5#
      • 1...Kxf4
        • 2.Rf2#
      • 1...Sexf4
        • 2.Sg3#
      • 1...Sdxf4
        • 2.Se3#
      • 1...exf4
        • 2.Rxd5#
      • 1...gxf4
        • 2.Qxg4#
      • 1...exf4 ep
        • 2.Qxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD,SBLOCK::S(A)
    • S(e);N_GUARD,SBLOCK::S(A)
    • P(c);::QAB(G),XP(j)
  • Actual
    • P(B);
    • Threat
      • QAR1(G),XP(h)
    • Vars
      • K(g);OGATEB,P-FLIGHT,P_SPINP(c),XP(B)::R(C)
      • S(a);N_GUARD,SBLOCK,XP(B)::S(A)
      • S(e);N_GUARD,SBLOCK,XP(B)::S(A)
      • P(f);OGATEB,SBLOCK,XP(B)::R(D),XS(e)
      • P(h);OGATE,XP(B)::QAB1(G),XP(d)
      • P(c);EP,XP(B)::QAB(G),XP(j)
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).