Problem Display
PID: 145192 (2N2Rb1/3p1q2/r4k1P/6pp/2QP2Pr/p5N1/K2p4/1B6 w - - 0 1)

Ellerman, Arnoldo

The Times, 1920

(First published on Fri Jan 2 1920)

2N2Rb1/3p1q2/r4k1P/6pp/2QP2Pr/p5N1/K2p4/1B6

#2

9 + 10


14868 Pirnie Collection 2012

SOLUTION


  • SOUND
  • Sets
    • 1...Rxg4
      • 2.Sxh5#
    • 1...Re6
      • 2.Qf1#
    • 1...Bh7
      • 2.Rxf7#
      • 2.Qxf7#
    • 1...d5
      • 2.Qxa6#
  • Keys
    • 1.Bh7!
      • threat
        • 2.Se4#
      • 1...Rxg4
        • 2.Sxh5#
      • 1...Bxh7
        • 2.Qxf7#
      • 1...d5
        • 2.Qxa6#
      • 1...Re6
        • 2.Qf1#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD,XP(F)::S(C),XP(e)
    • R(f);N_PINQ(D),SBLOCK::QAR(D)
    • P(h);N_PINQ(D)::QAR(D),XR(f)
  • Actual
    • B(A);
    • Threat
      • S(C)
    • Vars
      • R(c);N_GUARD,XP(F)::S(C),XP(e)
      • B(j);N_GUARD,XB(A)::QAR1(D),XQ(i)
      • P(h);N_PINQ(D)::QAR(D),XR(f)
      • R(f);N_PINQ(D),SBLOCK::QAR(D)


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).