MESON Chess Problem Database

Problem Display
PID: 96865 (2k2qN1/R1P5/2r1pN2/3B4/b1p5/7Q/8/7K w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

200 Assorted Problems (Wenman), 1945

2k2qN1/R1P5/2r1pN2/3B4/b1p5/7Q/8/7K

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh6
      • 2.Se7#
    • 1...Qe7
      • 2.Sxe7#
    • 1...Rxc7
      • 2.Ra8#
  • Keys
    • 1.Qh8!
      • threat
        • 2.Se7#
      • 1...Qh6+
        • 2.Sxh6#
      • 1...Qxf6
        • 2.Sxf6#
      • 1...Qxg8
        • 2.Qxg8#
      • 1...Rxc7
        • 2.Ra8#
      • 1...Qe7
        • 2.Sxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(f);N_GUARD,P_PINQ(B)::S(G)
    • Q(f);N_GUARD::S(G),XQ(f)
    • R(c);SBLOCK,XP(F)::R(E)
  • Actual
    • Q(B);N_PINP(d)
    • Threat
      • S(G)
    • Vars
      • Q(f);CHECK::QAR(B)+S(G),XQ(f)
      • Q(f);XS(D)::QAR(B)+S(G),XQ(f)
      • Q(f);OGATE,P_SPINQ(f),XS(G)::QAR(B),XQ(f)
      • R(c);SBLOCK,XP(F)::R(E)
      • Q(f);::QAR(B)+S(G),DCHECK,XQ(f)
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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).