MESON Chess Problem Database

Problem Display
PID: 34501 (7K/3Pk3/8/2n1N3/8/B6B/4Q3/8 w - - 0 1)

Healey, Frank

Source?, 0000

7K/3Pk3/8/2n1N3/8/B6B/4Q3/8

#2

6 + 2

3644 200 Chess Problems (Healey) 1908

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.d8Q#
    • 1...Kf6
      • 2.d8Q#
      • 2.d8B#
    • 1...Kf8
      • 2.Bxc5#
      • 2.d8Q#
  • Tries
    • 1.Kg7?
      • threat
        • 2.Sf7#
      • 1...Kd6
        • 2.d8Q#
      • 1...Kd8!
    • 1.Kh7?
      • 1...Kd6
        • 2.d8Q#
      • 1...Kf6
        • 2.d8Q#
        • 2.d8B#
      • 1...Kf8
        • 2.Bxc5#
        • 2.d8Q#
      • 1...Kd8!
    • 1.Kg8?
      • 1...Kd6
        • 2.d8Q#
      • 1...Kf6
        • 2.d8Q#
        • 2.d8B#
      • 1...Kd8!
    • 1.Bb4?
      • 1...Kd6
        • 2.d8Q#
      • 1...Kf6
        • 2.d8Q#
        • 2.d8B#
      • 1...Kf8
        • 2.Bxc5#
        • 2.d8Q#
      • 1...Kd8!
    • 1.Bxc5+?
      • 1...Kf6
        • 2.d8Q#
        • 2.d8B#
      • 1...Kd8!
    • 1.Bg4?
      • 1...Kd6
        • 2.d8Q#
      • 1...Kf6
        • 2.d8Q#
        • 2.d8B#
      • 1...Kf8
        • 2.Bxc5#
        • 2.d8Q#
      • 1...Kd8!
    • 1.Qh5?
      • 1...Kd6
        • 2.d8Q#
      • 1...Kf6
        • 2.d8Q#
        • 2.d8B#
      • 1...Kf8
        • 2.Bxc5#
        • 2.Qf7#
        • 2.Qe8#
        • 2.d8Q#
      • 1...Kd8!
    • 1.Qa6?
      • 1...Kf8
        • 2.Bxc5#
        • 2.Qd6#
        • 2.Qf6#
        • 2.d8Q#
      • 1...Kd8!
    • 1.Qe1?
      • 1...Kd6
        • 2.d8Q#
      • 1...Kf6
        • 2.d8Q#
        • 2.d8B#
      • 1...Kf8
        • 2.Bxc5#
        • 2.d8Q#
      • 1...Kd8!
    • 1.Qb2?
      • 1...Kd6
        • 2.d8Q#
      • 1...Kf6
        • 2.d8Q#
        • 2.d8B#
      • 1...Kf8
        • 2.Bxc5#
        • 2.d8Q#
      • 1...Kd8!
    • 1.Qf2?
      • 1...Kd6
        • 2.Qxc5#
      • 1...Kd8!
    • 1.Qe3?
      • 1...Kd6
        • 2.Qxc5#
        • 2.d8Q#
      • 1...Kf6
        • 2.d8Q#
        • 2.d8B#
      • 1...Kf8
        • 2.Bxc5#
        • 2.Qxc5#
        • 2.d8Q#
      • 1...Kd8!
    • 1.Qe4?
      • 1...Kd6
        • 2.d8Q#
      • 1...Kf6
        • 2.d8Q#
        • 2.d8B#
      • 1...Kf8
        • 2.Bxc5#
        • 2.d8Q#
      • 1...Kd8!
  • Keys
    • 1.Qh2!
      • 1...Kd6
        • 2.d8Q#
      • 1...Kf6
        • 2.d8Q#
        • 2.d8B#
      • 1...Kd8
        • 2.Sc6#
      • 1...Kf8
        • 2.Bxc5#
        • 2.d8Q#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::P=Q
    • K(b);N_SPINS(a),S_FLIGHT::P=Q
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Threat
        • QAR(A)+S(D)
      • Vars
        • K(b);S_FLIGHT::P=Q
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::P=Q
        • K(b);N_SPINS(a),S_FLIGHT::P=Q
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::P=Q
        • K(b);N_SPINS(a),S_FLIGHT::P=Q
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::P=Q
        • K(b);N_SPINS(a),S_FLIGHT::P=Q
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • B(B);CHECK,XS(a)
      • Vars
        • K(b);S_FLIGHT::P=Q
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(b);S_FLIGHT::P=Q
        • K(b);N_SPINS(a),S_FLIGHT::P=Q
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::P=Q
        • K(b);N_SPINS(a),S_FLIGHT::P=Q
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::P=Q
        • K(b);N_SPINS(a),S_FLIGHT::P=Q
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::P=Q
        • K(b);N_SPINS(a),S_FLIGHT::P=Q
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB1(A),XS(a)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::P=Q
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::P=Q
        • K(b);N_SPINS(a),S_FLIGHT::P=Q
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::P=Q
      • K(b);N_SPINS(a),S_FLIGHT::P=Q
      • K(b);N_SPINS(a),S_FLIGHT::S(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).