Problem Display
PID: 49508 (4r1B1/2pN3Q/6r1/3pp3/3p1nR1/RP1k2NP/5PP1/3K4 w - - 0 1)

Castanedo, A

Het Belgisch Schaakbord (L'Echiquier Belge), 1948

4r1B1/2pN3Q/6r1/3pp3/3p1nR1/RP1k2NP/5PP1/3K4

#2

11 + 8


SOLUTION


  • SOUND
  • Tries
    • 1.Se2?
      • threat
        • 2.Sc5#
      • 1...Ke4
        • 2.Qxg6#
      • 1...Se6
        • 2.Sxe5#
      • 1...c5
        • 2.Sxc5#
      • 1...Sxe2!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sdc5#
      • 1...Kxe4
        • 2.Qxg6#
      • 1...dxe4
        • 2.b4#
      • 1...Rc6
        • 2.Rg3#
      • 1...Se6
        • 2.Sxe5#
      • 1...c5
        • 2.Sdxc5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • S(I)
      • Vars
        • K(a);P_SPINS(c),S_FLIGHT::QAB(J),XR(f)
        • S(c);S_CUTR(h)::S(I),XP(e)
        • P(g);::S(I),XP(g)
      • Refutation
        • S(c);XS(F)
  • Actual
    • S(F);N_PINR(f)
    • Threat
      • S(I)
    • Vars
      • K(a);OGATEB,P_SPINR(f),P_SPINS(c),S_FLIGHT,XS(F)::QAB(J),XR(f)
      • P(d);SBLOCK,XS(F)::R(D)+P(E)
      • R(f);N_GUARD::R(H)
      • S(c);S_CUTR(h)::S(I),XP(e)
      • P(g);::S(I),XP(g)


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).