Problem Display
PID: 50978 (Rb2kN2/RQp4N/qp4p1/1b2K1B1/p1p5/8/8/8 w - - 0 1)

Buchwald, Julius

Sunday Chronicle, 1943

(First published on Sun Oct 17 1943)

Rb2kN2/RQp4N/qp4p1/1b2K1B1/p1p5/8/8/8

#2

7 + 9


14867 BCPS Library 2017
15239 Valois Notebooks 2020

SOLUTION


  • SOUND
  • Sets
    • 1...c5+
      • 2.Rxb8#
    • 1...c6+
      • 2.Rxb8#
  • Tries
    • 1.Qc6+?
      • 1...Kf7
        • 2.Qxg6#
      • 1...Bxc6!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qxg6#
      • 1...c5+
        • 2.Kd5#
      • 1...c6+
        • 2.Kd4#
      • 1...Kf7
        • 2.Qxg6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(g);CHECK::R(F),XB(h)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(i);N_SPINB(h),P_SPINP(g),S_FLIGHT::QAB1(D),XP(f)
      • Refutation
        • B(c);XQ(D)
  • Actual
    • Q(D);
    • Threat
      • QAB(D),XP(f)
    • Vars
      • P(g);CHECK::QAR(D)+K(A)
      • K(i);N_SPINB(h),P_SPINP(g),S_FLIGHT::QAB1(D),XP(f)


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).