MESON Chess Problem Database

Problem Display
PID: 43590 (8/5K2/5N2/5k2/5P2/4b3/4PQ2/4B3 w - - 0 1)

Clark, DW

The Westminster Papers, 1876

8/5K2/5N2/5k2/5P2/4b3/4PQ2/4B3

#2

6 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.e4#
    • 1...Bd2
      • 2.e4#
    • 1...Bd4
      • 2.e4#
    • 1...Bc5
      • 2.e4#
    • 1...Bb6
      • 2.e4#
    • 1...Ba7
      • 2.e4#
  • Tries
    • 1.Qh2?
      • 1...Bc1
        • 2.e4#
      • 1...Bg1
        • 2.e4#
      • 1...Bd2
        • 2.e4#
      • 1...Bf2
        • 2.e4#
      • 1...Bd4
        • 2.e4#
      • 1...Bc5
        • 2.e4#
      • 1...Bb6
        • 2.e4#
      • 1...Ba7
        • 2.e4#
      • 1...Bxf4!
  • Keys
    • 1.Bd2!
      • 1...Bxd2
        • 2.e4#
      • 1...Bxf2
        • 2.e4#
      • 1...Bxf4
        • 2.Qxf4#
      • 1...Bd4
        • 2.e4#
      • 1...Bc5
        • 2.Qxc5#
        • 2.e4#
      • 1...Bb6
        • 2.e4#
      • 1...Ba7
        • 2.e4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);OGATE::P(B)
  • Tries
    • Try
      • Q(C);
      • Vars
        • B(a);OGATE::P(B)
      • Refutation
        • B(a);XP(D)
  • Actual
    • B(A);
    • Vars
      • B(a);OGATE,XB(A)::P(B)
      • B(a);OGATE,XQ(C)::P(B)
      • B(a);OGATE,P_SPINB(a),XP(D)::QAR1(C),XB(a)
      • B(a);OGATE::P(B)
HTML5 logo

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).