Problem Display
PID: 61577 (4B3/1R1p1R2/2Pk4/8/3K4/8/8/8 w - - 0 1)

Markovtsy, Vassyl Yuriovich

2nd Prize, Wola Gulowska, 2004

4B3/1R1p1R2/2Pk4/8/3K4/8/8/8

#2

5 + 2


56 The Problemist 2005

SOLUTION


  • SOUND
  • Sets
    • 1...dxc6
      • 2.Rf6#
  • Tries
    • 1.Rb6?
      • 1...Ke6
        • 2.cxd7#
      • 1...dxc6
        • 2.Rxc6#
      • 1...Kc7!
  • Keys
    • 1.cxd7!
      • 1...Kc6
        • 2.d8Q#
        • 2.d8R#
      • 1...Ke6
        • 2.Rb6#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • P(b);XP(B)::R(D)
  • Tries
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)+P(B),XP(b)
        • P(b);OGATE,P_SPINP(b),XP(B)::R1(C),XP(b)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
  • Actual
    • P(B);XP(b)
    • Vars
      • K(a);P-FLIGHT::P=Q
      • K(a);P-FLIGHT::R(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).