Problem Display
PID: 249062 (8/2r1b2b/BpP2rQ1/1K1nBq2/P4pN1/R1pkPP2/1P5R/8 w - - 0 1)

Klemperer, JH

5th HM., Jerusalem Post, 1957

8/2r1b2b/BpP2rQ1/1K1nBq2/P4pN1/R1pkPP2/1P5R/8

#2

12 + 10


15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Sxe3
      • 2.Rxc3#
    • 1...Sb4
      • 2.Rxc3#
  • Keys
    • 1.Bxc3!
      • threat
        • 2.Rd2#
      • 1...Sxc3+
        • 2.Kxb6#
      • 1...Sxe3+
        • 2.Se5#
      • 1...Sb4+
        • 2.Be5#
      • 1...fxe3
        • 2.Se5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD,P_PINB(I),XP(D)::R1(C),XP(a)
    • S(d);N_GUARD,P_PINB(I)::R1(C),XP(a)
  • Actual
    • B(I);XP(a)
    • Threat
      • R1(B)
    • Vars
      • S(d);CHECK,P_SPINS(d),XB(I)::B(J)+K(H),XP(f)
      • S(d);CHECK,SBLOCK,XP(D)::S(G)
      • S(d);CHECK,N_GUARD,S_CUTB(i)::R(C)+B(I)
      • P(c);SBLOCK,XP(D)::S(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).