MESON Chess Problem Database

Problem Display
PID: 229789 (b7/8/8/4N3/2P1rk1P/3QR3/7N/1BK5 w - - 0 1)

Grimshaw, Arthur E

Tidskrift for Schack, 1911

b7/8/8/4N3/2P1rk1P/3QR3/7N/1BK5

#2

8 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sg6#
  • Keys
    • 1.Qd6!
      • threat
        • 2.Rf3#
      • 1...Rxc4+
        • 2.Sxc4#
      • 1...Kxe3
        • 2.Qd2#
      • 1...Kf5
        • 2.Rf3#
      • 1...Rxe3
        • 2.Sg6#
      • 1...Rxe5
        • 2.Qxe5#
      • 1...Rd4
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(a);::S(H)
  • Actual
    • Q(D);
    • Threat
      • R1(E)
    • Vars
      • R(a);CHECK,XP(F)::QAB(D)+S(H),XR(a)
      • K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(D)
      • K(b);P-FLIGHT,P_SPINR(a)::R(E)
      • R(a);SBLOCK,XR(E)::QAB(D)+S(H),DCHECK
      • R(a);OGATE,P_SPINR(a),XS(H)::QAB1(D),XR(a)
      • R(a);::QAB(D)
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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).