Problem Display
PID: 141351 (3b2B1/3Pk3/4PR2/7n/3N1p1K/5P2/1B4Q1/1brR4 w - - 0 1)

Locock, Charles Dealtry

Public School Magazine, 1899

3b2B1/3Pk3/4PR2/7n/3N1p1K/5P2/1B4Q1/1brR4

#2

10 + 6


14868 Pirnie Collection 2011

SOLUTION


  • SOUND
  • Sets
    • 1...Kxf6
      • 2.Qg5#
    • 1...Rc2
      • 2.Sf5#
    • 1...Rc6
      • 2.Sxc6#
    • 1...Ba2
      • 2.Sf5#
    • 1...Bc2
      • 2.Sc6#
    • 1...Bf5
      • 2.Sxf5#
  • Tries
    • 1.Ba3+?
      • 1...Kxf6
        • 2.Qg5#
      • 1...Rc5!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Sf5#
        • 2.Sc6#
      • 1...Kd6
        • 2.Sf5#
      • 1...Kxf6
        • 2.Sc6#
      • 1...Rxd1
        • 2.Sf5#
      • 1...Rxc2
        • 2.Sf5#
      • 1...Bxc2
        • 2.Sc6#
      • 1...Sxf6
        • 2.Ba3#
      • 1...Ba5
        • 2.Sc6#
      • 1...Bb6
        • 2.Sc6#
      • 1...Bc7
        • 2.Sc6#
      • 1...Sg3
        • 2.Sc6#
      • 1...Sg7
        • 2.Sc6#

This is a version of 24891

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 3
  • Sets
    • K(e);OGATEB,S_FLIGHT,XR(H)::QAB1(C)
    • R(b);S_CUTB(a)::S(E)
    • R(b);N_GUARD::S(E),XR(b)
    • B(a);N_GUARD::S(E)
    • B(a);S_CUTR(b)::S(E)
    • B(a);N_GUARD::S(E),XB(a)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(e);S_FLIGHT,XR(H)::QAB1(C)
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • Q(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(e);P_PINR(H),S_FLIGHT::R(A)+S(E),DCHECK
      • K(e);S_FLIGHT,XR(H)::B(B)+S(E)
      • R(b);XR(A)::S(E)
      • R(b);XQ(C)::S(E)
      • B(a);XQ(C)::S(E)
      • S(d);SBLOCK,XR(H)::B(B)
      • B(f);::S(E)
      • S(d);::S(E)


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).