Problem Display
PID: 145779 (5nB1/6K1/p2pp3/3kP3/Q1R5/2P5/P2nP3/3R4 w - - 0 1)

Winter-Wood, Edward John

Argosy, 1906

(First published on Sat Dec 22 1906)

5nB1/6K1/p2pp3/3kP3/Q1R5/2P5/P2nP3/3R4

#2

9 + 6


15254 EJWW Scrapbook 2012

SOLUTION


  • SOUND
  • Sets
    • 1...a5
      • 2.Qb5#
    • 1...dxe5
      • 2.Rxd2#
      • 2.Qc6#
  • Tries
    • 1.Kxf8?
      • 1...dxe5
        • 2.Rxd2#
        • 2.Qc6#
      • 1...a5
        • 2.Qb5#
      • 1...Kxe5!
    • 1.Rc7?
      • threat
        • 2.Qd4#
      • 1...dxe5
        • 2.Rxd2#
        • 2.Qc6#
      • 1...Kxe5!
    • 1.Rc8?
      • threat
        • 2.Qd4#
      • 1...dxe5
        • 2.Rxd2#
        • 2.Qc6#
      • 1...Kxe5!
  • Keys
    • 1.Qe8!
      • 1...Kxc4
        • 2.Qc6#
      • 1...Kxe5
        • 2.Qh5#
      • 1...dxe5
        • 2.Qc6#
      • 1...Sg6
        • 2.Qxe6#
      • 1...Sd7
        • 2.Qxe6#
      • 1...Sh7
        • 2.Qxe6#
      • 1...a5
        • 2.Qb5#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAR2(E)
  • Tries
    • Try
      • K(H);S_FLIGHT,XS(f)
      • Vars
        • P(c);N_GUARD::QAR2(E)
      • Refutation
        • K(b);N_SPINP(e),N_SPINS(a),P-FLIGHT,XP(G)
    • Try
      • R(F);
      • Threat
        • QAR1(E)
      • Refutation
        • K(b);N_SPINP(e),N_SPINS(a),P-FLIGHT,XP(G)
    • Try
      • R(F);
      • Threat
        • QAR1(E)
      • Refutation
        • K(b);N_SPINP(e),N_SPINS(a),P-FLIGHT,XP(G)
  • Actual
    • Q(E);
    • Vars
      • K(b);N_SPINS(a),S_FLIGHT,XR(F)::QAR2(E)
      • K(b);N_SPINS(a),OGATEB,P-FLIGHT,XP(G)::QAR(E)
      • P(d);SBLOCK,XP(G)::QAB1(E)
      • S(f);N_GUARD::QAB1(E),XP(e)
      • P(c);N_GUARD::QAR2(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).