MESON Chess Problem Database

Problem Display
PID: 185061 (3b4/8/2K5/2p5/n1kp4/PNPr4/P2p3Q/1n1N4 w - - 0 1)

Bachl, Ernst

Basler Nachrichten, 1974

3b4/8/2K5/2p5/n1kp4/PNPr4/P2p3Q/1n1N4

#2

7 + 8

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.Sa5#
    • 1...Ba5
      • 2.Sxa5#
    • 1...Bg5
      • 2.Sa5#
    • 1...Bf6
      • 2.Sa5#
    • 1...Be7
      • 2.Sa5#
    • 1...Sxc3
      • 2.Sb2#
    • 1...Sb6
      • 2.Sa5#
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qe6#
      • 1...Sbxc3
        • 2.Sxd2#
      • 1...Saxc3
        • 2.Sb2#
      • 1...dxc3
        • 2.Se3#
      • 1...Sb6
        • 2.Sa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • B(h);N_GUARD::S(E)
    • B(h);N_GUARD::S(E),XB(h)
    • S(d);N_GUARD,SBLOCK,XP(F)::S(A)
    • S(d);S_CUTB(h)::S(E)
  • Actual
    • Q(C);P_PINR(c)
    • Threat
      • QAB(C)
    • Vars
      • S(a);N_GUARD,XP(F)::S(E),XP(b)
      • S(d);N_GUARD,SBLOCK,XP(F)::S(A)
      • P(f);N_GUARD,SBLOCK,XP(F)::S(A)
      • S(d);S_CUTB(h)::S(E)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).