Problem Display
PID: 183061 (7K/8/6Nk/7P/3n3Q/3r4/4b3/8 w - - 0 1)

Oudot, Jean

British Chess Magazine, 1967

7K/8/6Nk/7P/3n3Q/3r4/4b3/8

#2

4 + 4


133 The Problemist Supplement 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qf6#
      • 1...Bxh5
        • 2.Qxh5#
      • 1...Rg3!
    • 1.Se7?
      • threat
        • 2.Sg8#
      • 1...Bxh5
        • 2.Qf4#
      • 1...Rg3!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sf7#
      • 1...Bxh5
        • 2.Qf4#
      • 1...Rf3
        • 2.Sg4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR2(A)
      • Vars
        • B(a);OGATE,P_SPINB(a),XP(B)::QAR1(A),XB(a)
      • Refutation
        • R(b);
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • B(a);P_SPINB(a),SBLOCK,XP(B)::QAB(A)
      • Refutation
        • R(b);
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • B(a);P_SPINB(a),SBLOCK,XP(B)::QAB(A)
      • R(b);S_CUTB(a)::S(C)


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).