MESON Chess Problem Database

Problem Display
PID: 219142 (8/7Q/q7/3kP3/BB3P2/3p2N1/8/1K6 w - - 0 1)

Geary, William

The Field, 1883

(First published on Sat Oct 6 1883)

8/7Q/q7/3kP3/BB3P2/3p2N1/8/1K6

#2

7 + 3

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qe4#
    • 1...Kd4
      • 2.Qe4#
    • 1...Ke6
      • 2.Qg8#
      • 2.Qd7#
    • 1...Qc4
      • 2.Qd7#
    • 1...Qe6
      • 2.Qxd3#
      • 2.Qe4#
  • Tries
    • 1.Bb3+?
      • 1...Kd4
        • 2.Qe4#
      • 1...Qc4
        • 2.Qd7#
      • 1...Kc6!
    • 1.Qxd3+?
      • 1...Ke6
        • 2.Qd7#
      • 1...Qxd3+!
    • 1.Qh1+?
      • 1...Kc4
        • 2.Qe4#
      • 1...Kd4
        • 2.Qe4#
      • 1...Ke6!
  • Keys
    • 1.e6!
      • threat
        • 2.Qe4#
      • 1...Kc4
        • 2.Qe4#
      • 1...Kd4
        • 2.Qe4#
      • 1...Kxe6
        • 2.Qf5#
      • 1...Qxe6
        • 2.Qxd3#
      • 1...Qc4
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR2(G)
    • K(b);P-FLIGHT::QAR1(G)
    • Q(c);N_GUARD,SBLOCK::QAR2(G)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(G)
        • Q(c);P_SPINQ(c)::QAR2(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);CHECK,XP(a)
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(G)
      • Refutation
        • Q(c);CHECK,XQ(G)
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(G)
        • K(b);P-FLIGHT::QAR1(G)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • P(F);
    • Threat
      • QAB1(G)
    • Vars
      • K(b);S_FLIGHT::QAR2(G)
      • K(b);P-FLIGHT::QAR1(G)
      • K(b);S_FLIGHT,XP(F)::QAB1(G)
      • Q(c);N_GUARD,SBLOCK,XP(F)::QAR2(G),XP(a)
      • Q(c);N_GUARD,SBLOCK::QAR2(G)
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).