Problem Display
PID: 244431 (7b/B3Qn2/8/2N1pp2/R1pr1krP/3R1Np1/8/K2n3B w - - 0 1)

Eerkes, Allard Pieter

L'Italia Scacchistica, 1935

7b/B3Qn2/8/2N1pp2/R1pr1krP/3R1Np1/8/K2n3B

#2

9 + 10


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Re4
      • 2.Se6#
    • 1...Rxh4
      • 2.Qxh4#
    • 1...e4
      • 2.Se6#
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Rf3#
      • 1...Rxd3
        • 2.Sxd3#
      • 1...Sxe5
        • 2.Se6#
      • 1...cxd3
        • 2.Sexd3#
      • 1...Se3
        • 2.Rxd4#
      • 1...Sg5
        • 2.Sg6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • R(d);SBLOCK::S(G)
    • R(f);OGATE,XP(F)::QAR2(I),XR(f)
    • P(g);SBLOCK::S(G)
  • Actual
    • S(D);XP(g)
    • Threat
      • R1(C)
    • Vars
      • R(d);P_PINS(D),P_SPINP(c),XR(C)::S(G),XR(d)
      • S(i);SBLOCK,XS(D)::S(G)
      • P(c);P_SPINR(d),XR(C)::S(D),XP(c)
      • S(a);SBLOCK::R(C),XR(d)
      • S(i);S_CUTR(f)::S(D)


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).