MESON Chess Problem Database

Problem Display
PID: 11063 (1Q6/p7/P1pN4/2PkPP2/2Nr2P1/K2bB3/8/3R1B2 w - - 0 1)

Neale, Harry R

Chess, 1936

1Q6/p7/P1pN4/2PkPP2/2Nr2P1/K2bB3/8/3R1B2

#2

12 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Qg8#
    • 1...Rf4
      • 2.Qg8#
  • Tries
    • 1.Bg2+?
      • 1...Kxc5
        • 2.Qxa7#
        • 2.Qb4#
      • 1...Re4
        • 2.Bxe4#
        • 2.Rxd3#
        • 2.Qg8#
      • 1...Be4!
  • Keys
    • 1.Se4!
      • 1...Kxc4
        • 2.Qb3#
      • 1...Kxe4
        • 2.Bg2#
      • 1...Rxc4
        • 2.Sf6#
      • 1...Rxe4
        • 2.Qg8#
      • 1...Bxf1
        • 2.Rxd4#
      • 1...Bxc4
        • 2.Rxd4#
      • 1...Bxe4
        • 2.Qd6#
      • 1...Bb1
        • 2.Rxd4#
      • 1...Bc2
        • 2.Rxd4#
      • 1...Be2
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 1
  • Sets
    • R(b);P_SPINB(a)::QAB(L)
  • Tries
    • Try
      • B(B);CHECK
      • Refutation
        • B(a);P_SPINB(a),P_SPINR(b)
  • Actual
    • S(K);
    • Vars
      • K(c);OGATEB,P_SPINB(a),S_FLIGHT,XS(E)::QAB1(L)
      • K(c);OGATEB,S_FLIGHT,XS(K)::B(B)
      • R(b);P_SPINB(a),SBLOCK,XS(E)::S(K)
      • R(b);P_SPINB(a),SBLOCK,XS(K)::QAB(L)
      • B(a);OGATE,P_SPINR(b),XB(B)::R1(A),XR(b)
      • B(a);OGATE,P_SPINR(b),XS(E)::R1(A),XR(b)
      • B(a);P_SPINR(b),SBLOCK,XS(K)::QAR1(L)
      • B(a);OGATE,P_SPINR(b)::R1(A),XR(b)
HTML5 logo

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).