MESON Chess Problem Database

Problem Display
PID: 232278 (8/3n4/8/R1NkN1R1/7Q/1P1n1P2/8/K7 w - - 0 1)

Fieldthwaite, ?

The Field, 1900

(First published on Sat Feb 3 1900)

8/3n4/8/R1NkN1R1/7Q/1P1n1P2/8/K7

#2

8 + 3

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sb7+?
      • 1...S3c5
        • 2.Qc4#
      • 1...S7c5
        • 2.Qc4#
      • 1...Ke6!
    • 1.Sc4+?
      • 1...S3e5
        • 2.Qe4#
      • 1...S7e5
        • 2.Qe4#
      • 1...Kc6!
    • 1.Sf7+?
      • 1...S3e5
        • 2.Qe4#
      • 1...S7e5
        • 2.Qe4#
      • 1...Kc6!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Qxd3#
        • 2.Qxd7#
      • 1...Kd4
        • 2.Qxd3#
      • 1...Kd6
        • 2.Qxd7#
      • 1...S3xc5
        • 2.Qxd7#
      • 1...S3xe5
        • 2.Qxd7#
      • 1...S7xc5
        • 2.Qd7#
      • 1...S7xe5
        • 2.Qd7#
      • 1...Sb6
        • 2.Qxd3#
      • 1...Sc1
        • 2.Qxd7#
      • 1...Se1
        • 2.Qxd7#
      • 1...Sb2
        • 2.Qxd7#
      • 1...Sf2
        • 2.Qxd7#
      • 1...Sb4
        • 2.Qxd7#
      • 1...Sf4
        • 2.Qxd7#
      • 1...Sf6
        • 2.Qxd3#
      • 1...Sb8
        • 2.Qxd3#
      • 1...Sf8
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • S(a);P_SPINS(a)::QAB1(D)
        • S(c);P_SPINS(c)::QAB1(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(G);CHECK
      • Vars
        • S(a);P_SPINS(a)::QAB1(D)
        • S(c);P_SPINS(c)::QAB1(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(G);CHECK
      • Vars
        • S(a);P_SPINS(a)::QAB1(D)
        • S(c);P_SPINS(c)::QAB1(D)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(D);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);P-FLIGHT::QAR1(D),XS(a)
      • K(b);P-FLIGHT::QAR1(D),XS(c)
      • S(a);P_SPINS(a),XS(F)::QAR2(D),XS(c)
      • S(a);P_SPINS(a),XS(G)::QAR2(D),XS(c)
      • S(c);P_SPINS(c),XS(F)::QAR2(D)
      • S(c);P_SPINS(c),XS(G)::QAR2(D)
      • S(c);::QAR2(D),XS(a)
      • S(a);::QAR2(D),XS(c)
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).