Problem Display
PID: 18872 (3Bk2r/Kpp2p1p/7p/7B/3Q2b1/8/8/8 w - - 0 1)

Whyatt, William Albert

The Times Weekly Edition, 1958

3Bk2r/Kpp2p1p/7p/7B/3Q2b1/8/8/8

#2

4 + 8


SOLUTION


  • SOUND
  • Sets
    • 1...Kf8
      • 2.Qxh8#
    • 1...Bd7
      • 2.Qxh8#
  • Tries
    • 1.Bg5?
      • threat
        • 2.Qd8#
      • 1...Kf8
        • 2.Qxh8#
      • 1...Bd7
        • 2.Qxh8#
      • 1...hxg5!
    • 1.Bf6?
      • threat
        • 2.Qd8#
      • 1...Kf8
        • 2.Qd8#
      • 1...Bd7!
    • 1.Qf6?
      • threat
        • 2.Qe7#
      • 1...Kf8
        • 2.Qxh8#
        • 2.Qxf7#
      • 1...Kd7!
  • Keys
    • 1.Bh4!
      • threat
        • 2.Qd8#
      • 1...Kf8
        • 2.Qxh8#
      • 1...Bd7
        • 2.Qxh8#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(g);N_SPINP(e),P-FLIGHT::QAR2(A),XR(h)
    • B(a);SBLOCK::QAR(A),XR(h)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR1(A)
      • Vars
        • K(g);N_SPINP(e),P-FLIGHT::QAR2(A),XR(h)
        • B(a);SBLOCK::QAR(A),XR(h)
      • Refutation
        • P(b);XB(D)
    • Try
      • B(D);
      • Threat
        • QAR1(A)
      • Vars
        • K(g);N_SPINP(e),P-FLIGHT::QAR2(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Refutation
        • K(g);N_SPINP(e),S_FLIGHT
  • Actual
    • B(D);
    • Threat
      • QAR1(A)
    • Vars
      • K(g);N_SPINP(e),P-FLIGHT::QAR2(A),XR(h)
      • B(a);SBLOCK::QAR(A),XR(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).