MESON Chess Problem Database

Problem Display
PID: 96825 (8/8/4pp2/1K2Nkp1/4R3/6P1/2B2rq1/1Q6 w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

200 Assorted Problems (Wenman), 1945

8/8/4pp2/1K2Nkp1/4R3/6P1/2B2rq1/1Q6

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1+
      • 2.Re2#
    • 1...Qh1
      • 2.g4#
    • 1...Qh3
      • 2.Re2#
    • 1...Qg1
      • 2.Re2#
    • 1...Qh2
      • 2.Re2#
      • 2.g4#
    • 1...fxe5
      • 2.Rf4#
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qh7#
      • 1...Qf1+
        • 2.Re2#
      • 1...Qxh1
        • 2.g4#
      • 1...Qxe4
        • 2.Qxe4#
      • 1...fxe5
        • 2.Rf4#
      • 1...g4
        • 2.Qh5#
      • 1...Qh3
        • 2.Re2#
      • 1...Qh2
        • 2.Re2#
        • 2.g4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(b);CHECK,N_GUARD::B(B)+R(D)
    • Q(b);N_GUARD::P(C)
    • Q(b);N_GUARD::B(B)+R(D)
    • P(f);SBLOCK,XS(F)::B(B)+R(D),DCHECK
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • Q(b);CHECK,N_GUARD::B(B)+R(D)
      • Q(b);N_GUARD,XQ(A)::P(C)
      • Q(b);OGATE,P_SPINQ(b),XR(D)::QAB1(A),XQ(b)
      • P(f);SBLOCK,XS(F)::B(B)+R(D),DCHECK
      • P(d);OGATEB::QAR2(A)
      • Q(b);N_GUARD::B(B)+R(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).