Problem Display
PID: 179133 (8/BQ2Rb2/4pN2/3p2K1/2B5/pRP2k1p/6pP/6n1 w - - 0 1)

van Dijk, Johannes

Arbeidermagasinet, 1936

8/BQ2Rb2/4pN2/3p2K1/2B5/pRP2k1p/6pP/6n1

#2

9 + 8


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Bxd5+?
      • 1...exd5
        • 2.c4#
      • 1...Ke2!
    • 1.Rb2?
      • threat
        • 2.Rf2#
      • 1...Se2
        • 2.Bxe2#
      • 1...axb2!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sd2#
      • 1...Kxe4
        • 2.Qxd5#
      • 1...dxc4
        • 2.Sg3#
      • 1...dxe4
        • 2.Rxf7#
      • 1...d4
        • 2.cxd4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);CHECK,XP(f)
      • Vars
        • P(g);P_SPINP(g),XB(D)::R(B)+P(C)
      • Refutation
        • K(d);P_SPINP(g),S_FLIGHT
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • S(a);N_GUARD::B(D),XS(a)
      • Refutation
        • P(c);XR(B)
  • Actual
    • S(F);N_PINP(f)
    • Threat
      • S(F)
    • Vars
      • K(d);OGATEB,P_SPINP(f),S_FLIGHT,XS(F)::QAB1(H),XP(f)
      • P(f);XB(D)::QAB(H)+S(F)
      • P(f);P_SPINP(f),XS(F)::R(I),XB(h)
      • P(f);OGATE::R(B)+P(C),XP(f)


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).