Problem Display
PID: 272518 (6Q1/5Nbp/2R1RNk1/8/2n3P1/2KP3r/b1B4n/8 w - - 0 1)

Zilahi, Zoltan

Die Schwalbe, 1932

6Q1/5Nbp/2R1RNk1/8/2n3P1/2KP3r/b1B4n/8

#2

9 + 7


SOLUTION


  • SOUND
  • Sets
    • 1...Rxd3+
      • 2.Bxd3#
    • 1...Rh4
      • 2.dxc4#
      • 2.d4#
    • 1...Rh6
      • 2.dxc4#
      • 2.d4#
    • 1...Sf3
      • 2.dxc4#
      • 2.d4#
    • 1...Se5
      • 2.Sd5#
  • Keys
    • 1.Rc5!
      • threat
        • 2.Rg5#
      • 1...Rxd3+
        • 2.Bxd3#
      • 1...Rh5
        • 2.gxh5#
      • 1...Sf3
        • 2.dxc4#
        • 2.d4#
      • 1...Se5
        • 2.Sd5#
      • 1...h6
        • 2.Sh8#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(c);CHECK,OGATE,P_SPINR(c),XP(C)::B(A),XR(c)
    • S(d);N_PINS(G)::R(F)+S(G)
  • Actual
    • R(E);
    • Threat
      • R1(E)
    • Vars
      • R(c);CHECK,OGATE,P_SPINR(c),XP(C)::B(A),XR(c)
      • R(c);N_PINP(C),OGATE::P(D),XR(c)
      • S(d);N_PINS(G)::R(F)+S(G)
      • P(g);SBLOCK::S(H)


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).