Problem Display
PID: 18119 (8/8/5K2/8/1PNk1N2/2RrR3/1P1p1P2/3n4 w - - 0 1)

Overkamp, Petrus

5th HM., Szachy, 1953

8/8/5K2/8/1PNk1N2/2RrR3/1P1p1P2/3n4

#2

8 + 4


3147 Chess Problems: Introduction to an Art 1963
3310 2345 Chess Problems 1997
81 Chess 2010

SOLUTION


  • SOUND
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sb5#
        • 2.Sf5#
        • 2.Rcxd3#
        • 2.Rc4#
        • 2.Rexd3#
        • 2.Re4#
      • 1...Rxc3
        • 2.Re4#
      • 1...Rxe3
        • 2.Rc4#
      • 1...Sxb2
        • 2.Sb5#
      • 1...Sxf2
        • 2.Sf5#
      • 1...Sxc3
        • 2.Rxd3#
      • 1...Sxe3
        • 2.Rxd3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(F);
    • Threat
      • DUALS(6)
    • Vars
      • R(c);XR(C)::R1(D)
      • R(c);XR(D)::R1(C)
      • S(a);XP(A)::S(F)
      • S(a);XP(B)::S(F)
      • S(a);XR(C)::R1(D),XR(c)
      • S(a);XR(D)::R1(C),XR(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).