Problem Display
PID: 76594 (2K5/3Q4/k7/Bn6/R7/8/2q5/8 w - - 0 1)

Speckmann, Werner

FIDE Review, 1963

2K5/3Q4/k7/Bn6/R7/8/2q5/8

#2

4 + 3


4780 Der Tagesspiegel (Berlin) 1994
6114 Problemschach-Jahrbuch (1994) 1995

SOLUTION


  • SOUND
  • Tries
    • 1.Bc3+?
      • 1...Qxa4
        • 2.Qb7#
      • 1...Kb6!
  • Keys
    • 1.Qc6+!
      • 1...Ka7
        • 2.Bb6#
      • 1...Qxc6+
        • 2.Bc7#

FEATURES


  • Static
    • TYPE = WHITE_IN_CHECK
  • Tries
    • Try
      • B(B);CHECK,P_SPINB(B)
      • Vars
        • Q(a);N_PINB(B),XR(A)::QAB1(C)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(C);CHECK,P_SPINQ(C)
    • Vars
      • K(c);P-FLIGHT::R(A)+B(B),DCHECK
      • Q(a);CHECK,XQ(C)::R(A)+B(B)


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).