MESON Chess Problem Database

Problem Display
PID: 174965 (8/4p1K1/2p1N3/2P1pk2/2P4P/5p1P/1Q3P2/8 w - - 0 1)

von Wardener, Friedrich Freiherr

Shakhmatnoe obozrenie, 1901

8/4p1K1/2p1N3/2P1pk2/2P4P/5p1P/1Q3P2/8

#2

8 + 5

6490 yacpdb 2018
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qb1#
      • 2.Qc2#
  • Tries
    • 1.Kf7?
      • 1...Ke4
        • 2.Qb1#
        • 2.Qc2#
      • 1...e4!
    • 1.Qb7?
      • 1...Ke4
        • 2.Qb1#
      • 1...Kxe6
        • 2.Qc8#
      • 1...e4!
  • Keys
    • 1.Qb8!
      • 1...Ke4
        • 2.Qb1#
      • 1...Kxe6
        • 2.Qc8#
      • 1...e4
        • 2.Sd4#

This anticipates 149823(1930)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(H);P-FLIGHT
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Vars
        • K(c);P_SPINP(d),S_FLIGHT::QAB(A)
        • K(c);OGATEB,S_FLIGHT,XS(G)::QAB(A)
      • Refutation
        • P(b);
  • Actual
    • Q(A);
    • Vars
      • K(c);S_FLIGHT::QAB(A)
      • K(c);OGATEB,S_FLIGHT,XS(G)::QAB(A)
      • P(b);N_GUARD,SBLOCK::S(G)
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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).