MESON Chess Problem Database

Problem Display
PID: 96842 (3n4/4N3/1P2p3/4k1Pp/1N5P/B2p4/3P2K1/2nQ4 w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

200 Assorted Problems (Wenman), 1945

3n4/4N3/1P2p3/4k1Pp/1N5P/B2p4/3P2K1/2nQ4

#2

9 + 6

6490 yacpdb 2009
5454 Near Snap 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Sbc6+?
      • 1...Ke4
        • 2.Qf3#
        • 2.Qa4#
      • 1...Kf4
        • 2.Qf3#
        • 2.Qa4#
      • 1...Sxc6!
    • 1.Bb2+?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kf4
        • 2.Qf3#
      • 1...Kd6!
  • Keys
    • 1.Qa4!
      • 1...Kd4
        • 2.Sbc6#
      • 1...Ke4
        • 2.Sbc6#
      • 1...Kf4
        • 2.Sxd3#
        • 2.Sbc6#
      • 1...Kd6
        • 2.Sxd3#
      • 1...Sa2
        • 2.Sxd3#
      • 1...Se2
        • 2.Sxd3#
      • 1...Sb3
        • 2.Sxd3#
      • 1...Sc6
        • 2.Sbxc6#
      • 1...Sb7
        • 2.Sbc6#
      • 1...Sf7
        • 2.Sbc6#

Anticipated by 144370(1898)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • S(f);XS(E)
    • Try
      • B(D);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(A)
        • K(c);S_FLIGHT::QAR1(A)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(c);S_FLIGHT::QAR(A)+S(E),DCHECK
      • K(c);P-FLIGHT::QAR(A)+S(E)
      • K(c);S_FLIGHT::B(D)+S(E),XP(b)
      • S(a);N_GUARD::S(E),XP(b)
      • S(f);N_GUARD::S(E),XS(f)
      • S(f);N_GUARD::S(E)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).