MESON Chess Problem Database

Problem Display
PID: 154218 (8/P2Np3/2P1Pp2/1N1k1p1p/B4n1R/8/2K5/4Q3 w - - 0 1)

Ansell, George Kirkpatrick

Morning Post, 1893

(First published on Mon Apr 3 1893)

8/P2Np3/2P1Pp2/1N1k1p1p/B4n1R/8/2K5/4Q3

#2

9 + 6

15351 SCPF/BCPS Black Books 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.a8Q#
      • 2.a8B#
    • 1...Sxe6
      • 2.Qh1#
  • Tries
    • 1.Sc3+?
      • 1...Kc4
        • 2.Rxf4#
      • 1...Kd4
        • 2.Rxf4#
      • 1...Kd6!
    • 1.Sc7+?
      • 1...Kc4
        • 2.Rxf4#
        • 2.Qc3#
      • 1...Kd4
        • 2.Rxf4#
      • 1...Kd6!
    • 1.Rxf4?
      • 1...Kxc6
        • 2.Qh1#
        • 2.a8Q#
        • 2.a8B#
      • 1...h4!
    • 1.Qc3?
      • 1...Ke4
        • 2.Qd3#
      • 1...Sxe6
        • 2.Sb6#
        • 2.Bb3#
        • 2.Qf3#
        • 2.Qc4#
      • 1...Se2
        • 2.Bb3#
        • 2.Qc4#
      • 1...Sg2
        • 2.Bb3#
        • 2.Qc4#
      • 1...Sd3
        • 2.Bb3#
        • 2.Qc4#
      • 1...Sh3
        • 2.Bb3#
        • 2.Qc4#
      • 1...Sg6
        • 2.Bb3#
        • 2.Qc4#
      • 1...Kxe6!
    • 1.Qb4?
      • threat
        • 2.Sc7#
      • 1...Kxc6
        • 2.a8Q#
        • 2.a8B#
      • 1...Sxe6
        • 2.Sc3#
        • 2.Qc4#
      • 1...Kxe6!
    • 1.Qe5+?
      • 1...Kc4
        • 2.Rxf4#
        • 2.Qd4#
        • 2.Qc5#
      • 1...Kxc6
        • 2.a8Q#
        • 2.a8B#
      • 1...fxe5!
  • Keys
    • 1.Qg3!
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kxc6
        • 2.a8Q#
        • 2.a8B#
      • 1...Kxe6
        • 2.Qg8#
      • 1...Sxe6
        • 2.Sc3#
        • 2.Qg2#
        • 2.Qf3#
      • 1...Se2
        • 2.Sc7#
      • 1...Sg2
        • 2.Sc7#
      • 1...Sd3
        • 2.Sc7#
      • 1...Sh3
        • 2.Sc7#
      • 1...Sg6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • K(b);S_FLIGHT,XP(F)::P=Q
    • S(a);N_GUARD,SBLOCK,XP(G)::QAB(A)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P_SPINS(a),S_FLIGHT::R(D),XS(a)
        • K(b);P-FLIGHT,P_SPINS(a)::R(D),XS(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINS(a)::R(D),XS(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(D);XS(a)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Vars
        • K(b);P_SPINS(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT,XP(G)
    • Try
      • Q(A);
      • Threat
        • S(E)
      • Vars
        • K(b);S_FLIGHT,XP(F)::P=Q
      • Refutation
        • K(b);S_FLIGHT,XP(G)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(F)::P=Q
      • Refutation
        • P(e);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(b);P_SPINS(a),S_FLIGHT::QAB1(A)
      • K(b);S_FLIGHT,XP(F)::P=Q
      • K(b);OGATEB,S_FLIGHT,XP(G)::QAB(A)
      • S(a);::S(E)
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).