MESON Chess Problem Database

Problem Display
PID: 96890 (8/1K6/3p4/pk6/4R3/bN2p3/P1QN4/2qbn3 w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

200 Assorted Problems (Wenman), 1945

8/1K6/3p4/pk6/4R3/bN2p3/P1QN4/2qbn3

#2

6 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Qc4#
      • 2.Qc6#
    • 1...Qxd2
      • 2.Qc4#
      • 2.Qc6#
    • 1...Qa1
      • 2.Qc4#
      • 2.Qc6#
    • 1...Qb1
      • 2.Qc4#
      • 2.Qc6#
    • 1...Bb2
      • 2.a4#
    • 1...Bb4
      • 2.Sd4#
    • 1...Bc5
      • 2.a4#
  • Tries
    • 1.Qd3+?
      • 1...Qc4
        • 2.Qxc4#
      • 1...Sxd3!
  • Keys
    • 1.Sb1!
      • threat
        • 2.Sc3#
      • 1...Qxb1
        • 2.Qc4#
        • 2.Qc6#
      • 1...Qxc2
        • 2.Sxa3#
      • 1...Bb4
        • 2.Sd4#
      • 1...Qb2
        • 2.Qc4#
        • 2.Qc6#
      • 1...Qd2
        • 2.Sxa3#
        • 2.Qc4#
        • 2.Qc6#
      • 1...Bb2
        • 2.a4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(d);OGATE::P(A)
    • B(d);SBLOCK::S(D)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • Q(a);N_GUARD,P_SPINQ(a)::QAB1(B),XQ(a)
      • Refutation
        • S(c);XQ(B)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • Q(a);N_GUARD,XQ(B)::S(C),XB(d)
      • B(d);SBLOCK::S(D)
      • B(d);OGATE::P(A)
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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).