MESON Chess Problem Database

Problem Display
PID: 252097 (b2Kn3/8/N2p4/1P1k4/3B1P2/3B4/n7/2b3Q1 w - - 0 1)

Healey, Percy E

The Field, 1908

(First published on Sat Mar 21 1908)

b2Kn3/8/N2p4/1P1k4/3B1P2/3B4/n7/2b3Q1

#2

7 + 6

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qg8#
    • 1...Sf6
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
    • 1...Sg7
      • 2.Sc7#
  • Tries
    • 1.Sb4+?
      • 1...Ke6
        • 2.Qg8#
      • 1...Sxb4!
    • 1.Bc3?
      • threat
        • 2.Qg8#
      • 1...Ke6
        • 2.Qg8#
      • 1...Sf6
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Sg7
        • 2.Sc7#
      • 1...Sxc3!
    • 1.Bf6?
      • threat
        • 2.Qg8#
      • 1...Sxf6
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Sg7
        • 2.Sc7#
      • 1...Ke6!
    • 1.Qe3?
      • threat
        • 2.Qe4#
      • 1...Sc3
        • 2.Sb4#
      • 1...Sf6
        • 2.Sc7#
      • 1...Bxe3!
    • 1.Qg2+?
      • 1...Ke6
        • 2.Qg8#
      • 1...Kxd4!
    • 1.Qg5+?
      • 1...Ke6
        • 2.Qf5#
        • 2.Qg8#
      • 1...Kxd4!
  • Keys
    • 1.Bh8!
      • threat
        • 2.Qg8#
      • 1...Ke6
        • 2.Qg8#
      • 1...Sf6
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Sg7
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(c);N_GUARD,S_FLIGHT::QAB(A)
    • S(f);N_GUARD::S(F)
    • S(f);N_GUARD::S(F),XS(f)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • S(b);XS(F)
    • Try
      • B(C);
      • Threat
        • QAB(A)
      • Vars
        • K(c);S_FLIGHT::QAB(A)
        • S(f);N_GUARD::S(F)
        • S(f);N_GUARD::S(F),XS(f)
      • Refutation
        • S(b);XB(C)
    • Try
      • B(C);
      • Threat
        • QAB(A)
      • Vars
        • S(f);N_GUARD,XB(C)::S(F)
        • S(f);N_GUARD::S(F),XS(f)
        • S(f);N_GUARD::S(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • S(b);N_GUARD::S(F)
        • S(f);N_GUARD::S(F)
      • Refutation
        • B(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(c);P-FLIGHT,XB(C)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(c);P-FLIGHT,XB(C)
  • Actual
    • B(C);
    • Threat
      • QAB(A)
    • Vars
      • K(c);S_FLIGHT::QAB(A)
      • S(f);N_GUARD::S(F)
      • S(f);N_GUARD::S(F),XS(f)
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).