Problem Display
PID: 79765 (8/2p2N1P/K5R1/1nkB2pQ/1p4R1/2p2N1P/8/8 w - - 0 1)

Touw Hian Bwee

3rd Prize, diagrammes, 1974

8/2p2N1P/K5R1/1nkB2pQ/1p4R1/2p2N1P/8/8

#2

9 + 6


6352 A Collection of Chess Problems by Touw Hian Bwee 2008

SOLUTION


  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Qxg5#
  • Tries
    • 1.S7xg5?
      • threat
        • 2.Se4#
      • 1...Kxd5
        • 2.Sf7#
      • 1...Sd6
        • 2.Se6#
      • 1...b3!
  • Keys
    • 1.S3xg5!
      • threat
        • 2.Se6#
      • 1...Kxd5
        • 2.Sf3#
      • 1...Sd4
        • 2.Se4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(d);OGATEB,P-FLIGHT,P_SPINP(e),XB(D)::QAR(E),XP(e)
  • Tries
    • Try
      • S(H);XP(e)
      • Threat
        • S(H)
      • Vars
        • K(d);P-FLIGHT,XB(D)::QAR(E)+S(H)
        • S(c);SBLOCK::S(H)
      • Refutation
        • P(b);
  • Actual
    • S(A);XP(e)
    • Threat
      • S(A)
    • Vars
      • K(d);P-FLIGHT,XB(D)::QAR(E)+S(A)
      • S(c);SBLOCK::S(A)


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).