MESON Chess Problem Database

Problem Display
PID: 5000 (3nQ1K1/8/3p4/3k4/6R1/B2N4/2r5/7b w - - 0 1)

Wurzburg, Otto

Orillia Packet, 1896

3nQ1K1/8/3p4/3k4/6R1/B2N4/2r5/7b

#2

5 + 5

5501 Chess Cameos 1936
3325 Wurzburg Artistry 1974
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Rg2
      • 2.Qe4#
    • 1...Rc5
      • 2.Sb4#
    • 1...Be4
      • 2.Qxe4#
    • 1...Sc6
      • 2.Qf7#
  • Keys
    • 1.Bc5!
      • threat
        • 2.Rd4#
      • 1...Rxc5
        • 2.Sb4#
      • 1...dxc5
        • 2.Qd7#
      • 1...Be4
        • 2.Qxe4#
      • 1...Rg2
        • 2.Qe4#
      • 1...Rc4
        • 2.Rg5#
      • 1...Sc6
        • 2.Qf7#
      • 1...Se6
        • 2.Qa8#

This anticipates 6742(1933)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);P_PINR(C),S_CUTB(a)::QAB1(D)
    • R(b);SBLOCK::S(B)
    • B(a);N_GUARD::QAB1(D),XB(a)
    • S(e);N_GUARD,SBLOCK::QAB(D)
  • Actual
    • B(A);
    • Threat
      • R1(C)
    • Vars
      • R(b);SBLOCK,XB(A)::S(B)
      • P(d);OGATEB,XB(A)::QAR2(D)
      • B(a);N_GUARD::QAB1(D),XB(a)
      • R(b);P_PINR(C),S_CUTB(a)::QAB1(D)
      • R(b);SBLOCK::R(C)
      • S(e);N_GUARD,SBLOCK::QAB(D)
      • S(e);OGATE,SBLOCK::QAB(D)
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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).