MESON Chess Problem Database

Problem Display
PID: 18977 (1N6/2k3P1/2p2P2/R1p3K1/N7/B7/B7/1Q6 w - - 0 1)

Shinkman, William Anthony

Western Advertiser, 1873

1N6/2k3P1/2p2P2/R1p3K1/N7/B7/B7/1Q6

#2

9 + 3

3925 The Golden Argosy 1929

SOLUTION

  • SOUND
  • Tries
    • 1.Ra7+?
      • 1...Kc8
        • 2.g8Q#
        • 2.g8R#
      • 1...Kd8
        • 2.g8Q#
        • 2.g8R#
      • 1...Kd6!
    • 1.Qb6+?
      • 1...Kc8
        • 2.Be6#
        • 2.g8Q#
        • 2.g8R#
      • 1...Kd6!
    • 1.Qb7+?
      • 1...Kd6
        • 2.Qe7#
      • 1...Kd8
        • 2.Qd7#
        • 2.g8Q#
        • 2.g8R#
      • 1...Kxb7!
    • 1.g8Q?
      • 1...c4
        • 2.Ra7#
        • 2.Qbh7#
        • 2.Qb6#
      • 1...Kd6!
    • 1.g8R?
      • 1...c4
        • 2.Ra7#
        • 2.Qh7#
        • 2.Qb6#
      • 1...Kd6!
  • Keys
    • 1.Qh7!
      • 1...Kd6
        • 2.Qh2#
      • 1...Kb7
        • 2.g8Q#
        • 2.g8R#
      • 1...Kxb8
        • 2.g8Q#
        • 2.g8R#
      • 1...Kc8
        • 2.g8Q#
        • 2.g8R#
      • 1...Kd8
        • 2.g8Q#
        • 2.g8R#
      • 1...c4
        • 2.g8Q#
        • 2.g8R#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(c);P-FLIGHT::P=Q
        • K(c);S_FLIGHT::P=Q
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);OGATE,P_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT,XQ(A)
    • Try
      • P(H);
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT
    • Try
      • P(H);
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(c);P_SPINP(a),S_FLIGHT::QAB(A)
      • K(c);P-FLIGHT::P=Q
      • K(c);S_FLIGHT,XS(I)::P=Q
      • K(c);S_FLIGHT::P=Q
      • P(a);::P=Q
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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).