Problem Display
PID: 202582 (3R4/K1pBp1pp/2PrP2P/1P1k1P2/Np1r1pN1/1P1P1P1Q/8/3R4 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Helsingin Sanomat, 1923

3R4/K1pBp1pp/2PrP2P/1P1k1P2/Np1r1pN1/1P1P1P1Q/8/3R4

#2

15 + 9


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Rxd3
      • 2.Rxd3#
    • 1...Rc4
      • 2.dxc4#
    • 1...Re4
      • 2.dxe4#
    • 1...Rxc6
      • 2.Bxc6#
    • 1...Rxe6
      • 2.Bxe6#
    • 1...Rxd7
      • 2.Rxd7#
  • Keys
    • 1.Qh5!
      • 1...Rxd3
        • 2.Rxd3#
      • 1...Rxc6
        • 2.Bxc6#
      • 1...Rxe6
        • 2.Bxe6#
      • 1...Rxd7
        • 2.Rxd7#
      • 1...gxh6
        • 2.f6#
      • 1...Rc4
        • 2.dxc4#
      • 1...Re4
        • 2.dxe4#
      • 1...g5
        • 2.fxg5 ep#
      • 1...g6
        • 2.fxg6#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATE,P_SPINR(b),XP(C)::R(A),XR(b)
    • R(b);OGATE::R(A)+P(C)DCHECK,XR(b)
    • R(e);OGATE,XP(J)::R(O)+B(N),DCHECK,XR(e)
    • R(e);OGATE,XP(K)::R(O)+B(N),DCHECK,XR(e)
    • R(e);OGATE,P_SPINR(e),XB(N)::R(O),XR(e)
  • Actual
    • Q(E);
    • Vars
      • R(b);OGATE,P_SPINR(b),XP(C)::R(A),XR(b)
      • R(e);OGATE,XP(J)::R(O)+B(N),DCHECK,XR(e)
      • R(e);OGATE,XP(K)::R(O)+B(N),DCHECK,XR(e)
      • R(e);OGATE,P_SPINR(e),XB(N)::R(O),XR(e)
      • P(h);N_GUARD,XP(L)::QAR(E)+P(I)
      • R(b);OGATE::R(A)+P(C)DCHECK,XR(b)
      • P(h);OGATE::QAR(E)+P(I),XP(h),EP
      • P(h);OGATE::QAR(E)+P(I),XP(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).