MESON Chess Problem Database

Problem Display
PID: 2746 (1N6/4p3/1P2p2N/2p1k3/2B1p3/1P2R3/8/K1Q5 w - - 0 1)

Thursby, John Ormerod Scarlett

Source?, 0000

1N6/4p3/1P2p2N/2p1k3/2B1p3/1P2R3/8/K1Q5

#2

8 + 5

3357 75 Chess Problems 1883

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Sc6#
      • 2.Qc3#
    • 1...Kd6
      • 2.Sf7#
  • Tries
    • 1.Rg3?
      • 1...Kd4
        • 2.Sc6#
        • 2.Qb2#
        • 2.Qc3#
      • 1...Kd6
        • 2.Sf7#
      • 1...Kf6
        • 2.Sd7#
        • 2.Qf4#
        • 2.Qg5#
      • 1...e3!
    • 1.Qb2+?
      • 1...Kd6
        • 2.Sf7#
      • 1...Kf4!
    • 1.Qe1?
      • 1...Kd4
        • 2.Sc6#
        • 2.Rxe4#
        • 2.Qc3#
      • 1...Kf4
        • 2.Qg3#
      • 1...Kd6
        • 2.Sf7#
      • 1...Kf6!
    • 1.Qf1?
      • 1...Kd6
        • 2.Sf7#
      • 1...Kd4!
    • 1.Qc3+?
      • 1...Kd6
        • 2.Sf7#
      • 1...Kf4!
  • Keys
    • 1.Qg1!
      • 1...Kd4
        • 2.Sc6#
      • 1...Kf4
        • 2.Qg3#
      • 1...Kd6
        • 2.Sf7#
      • 1...Kf6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(a),S_FLIGHT::S(G)
  • Tries
    • Try
      • R(D);N_PINP(a)
      • Vars
        • K(c);S_FLIGHT::S(G)
      • Refutation
        • P(a);
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);N_SPINP(a),S_FLIGHT::S(G)
      • Refutation
        • K(c);N_SPINP(a),S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(c);N_SPINP(a),S_FLIGHT::QAB1(B)
        • K(c);N_SPINP(a),S_FLIGHT::S(G)
      • Refutation
        • K(c);N_SPINP(a),S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(c);N_SPINP(a),S_FLIGHT::S(G)
      • Refutation
        • K(c);N_SPINP(a),S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);N_SPINP(a),S_FLIGHT::S(G)
      • Refutation
        • K(c);N_SPINP(a),S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(c);N_SPINP(a),S_FLIGHT::S(H)
      • K(c);N_SPINP(a),S_FLIGHT::QAB1(B)
      • K(c);N_SPINP(a),S_FLIGHT::S(G)
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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).