MESON Chess Problem Database

Problem Display
PID: 16910 (1n1Nk3/P2b4/p1pQ4/K1P5/8/4P3/8/3R4 w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

One Hundred Published Problems, 1944

1n1Nk3/P2b4/p1pQ4/K1P5/8/4P3/8/3R4

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd8
      • 2.axb8Q#
      • 2.axb8R#
  • Tries
    • 1.Rf1?
      • threat
        • 2.Rf8#
        • 2.Qf8#
      • 1...Kxd8
        • 2.Rf8#
        • 2.axb8Q#
        • 2.axb8R#
      • 1...Bh3
        • 2.Rf8#
      • 1...Bg4
        • 2.Rf8#
      • 1...Be6
        • 2.Rf8#
      • 1...Bc8
        • 2.Rf8#
      • 1...Bf5!
    • 1.Qe6+?
      • 1...Kxd8
        • 2.axb8Q#
      • 1...Kf8
        • 2.Qf7#
      • 1...Bxe6!
    • 1.Qf6?
      • 1...Bh3
        • 2.Qf7#
      • 1...Bg4
        • 2.Qf7#
      • 1...Bf5
        • 2.Qf7#
      • 1...Bc8
        • 2.Qf7#
      • 1...Be6!
    • 1.Qxd7+?
      • 1...Kf8
        • 2.Qf7#
      • 1...Sxd7!
  • Keys
    • 1.a8S!
      • 1...Kxd8
        • 2.Qf8#
      • 1...Bh3
        • 2.Sc7#
      • 1...Bg4
        • 2.Sc7#
      • 1...Bf5
        • 2.Sc7#
      • 1...Be6
        • 2.Sc7#
      • 1...Bc8
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(e);P-FLIGHT,P_SPINB(c),XS(G)::PXS(d)=Q
  • Tries
    • Try
      • R(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);::R1(A)
      • Refutation
        • B(c);
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINB(c),XS(G)::PXS(d)=Q
        • K(e);P-FLIGHT::QAR1(E)
      • Refutation
        • B(c);XQ(E)
    • Try
      • Q(E);
      • Vars
        • B(c);::QAB1(E)
      • Refutation
        • B(c);
    • Try
      • Q(E);CHECK,XB(c)
      • Vars
        • K(e);P-FLIGHT::QAR1(E)
      • Refutation
        • S(d);XQ(E)
  • Actual
    • P(F);
    • Vars
      • K(e);P-FLIGHT,P_SPINB(c),XS(G)::QAR2(E)
      • B(c);::S(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).