MESON Chess Problem Database

Problem Display
PID: 4876 (8/2N5/2K2kPB/5p2/8/3Pb3/5R2/6Q1 w - - 0 1)

Musil, Karel

3rd Prize, Shakhmatny Zhurnal, 1892

8/2N5/2K2kPB/5p2/8/3Pb3/5R2/6Q1

#2

7 + 3

3360 Simple Two-move Themes 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Bg7#
    • 1...f4
      • 2.Qg5#
  • Tries
    • 1.Qg5+?
      • 1...Ke5
        • 2.Bg7#
      • 1...Bxg5!
  • Keys
    • 1.Re2!
      • 1...Ke5
        • 2.Qa1#
      • 1...Ke7
        • 2.Qg5#
      • 1...Bxg1
        • 2.Re6#
      • 1...Bxh6
        • 2.Se8#
      • 1...f4
        • 2.Qg5#
      • 1...Bc1
        • 2.Sd5#
        • 2.Se8#
        • 2.Re6#
      • 1...Bd2
        • 2.Sd5#
        • 2.Se8#
        • 2.Re6#
      • 1...Bf2
        • 2.Sd5#
        • 2.Se8#
        • 2.Re6#
        • 2.Qg5#
      • 1...Bd4
        • 2.Sd5#
        • 2.Se8#
        • 2.Re6#
        • 2.Qg5#
      • 1...Bf4
        • 2.Sd5#
        • 2.Se8#
        • 2.Re6#
      • 1...Bc5
        • 2.Sd5#
        • 2.Se8#
        • 2.Re6#
        • 2.Qg5#
      • 1...Bg5
        • 2.Re6#
        • 2.Qxg5#
      • 1...Bb6
        • 2.Sd5#
        • 2.Se8#
        • 2.Re6#
        • 2.Qg5#
      • 1...Ba7
        • 2.Sd5#
        • 2.Se8#
        • 2.Re6#
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(b),S_FLIGHT::B(F)
    • P(b);S_CUTB(a)::QAB1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);S_FLIGHT::B(F)
      • Refutation
        • B(a);XQ(A)
  • Actual
    • R(B);N_PINP(b)
    • Vars
      • K(c);P_SPINB(a),S_FLIGHT::QAB(A)
      • B(a);OGATE,XQ(A)::R1(B)
      • B(a);XB(F)::S(G)
      • P(b);S_CUTB(a)::QAB1(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).