MESON Chess Problem Database

Problem Display
PID: 112960 (BQ6/pN6/8/Pk6/NP2p3/2P1p3/4K3/8 w - - 0 1)

Anstey, Charles Thomas T

St. John Globe, 1906

BQ6/pN6/8/Pk6/NP2p3/2P1p3/4K3/8

#2

8 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ka6
      • 2.Sbc5#
    • 1...Kc6
      • 2.Sbc5#
  • Tries
    • 1.Sac5?
      • threat
        • 2.Sd6#
      • 1...Kc6
        • 2.Sd6#
        • 2.Sd8#
      • 1...Kc4!
    • 1.Sd6+?
      • 1...Ka6
        • 2.Sc5#
        • 2.Bb7#
        • 2.Qb5#
        • 2.Qb7#
        • 2.Qc8#
      • 1...Kxa4!
    • 1.Qe8+?
      • 1...Ka6
        • 2.Sac5#
        • 2.Sbc5#
        • 2.Qc6#
        • 2.b5#
      • 1...Kc4!
    • 1.a6?
      • 1...Kc4
        • 2.Sa5#
      • 1...Kxa6
        • 2.Sbc5#
      • 1...Kc6
        • 2.Sbc5#
      • 1...Kxa4!
  • Keys
    • 1.Sb2!
      • threat
        • 2.Sc5#
      • 1...Ka6
        • 2.Sc5#
      • 1...Kc6
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(F)
    • K(c);S_FLIGHT::B(G)+S(F)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR(H)+S(F),DCHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);CHECK
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • Q(H);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(E);
      • Vars
        • K(c);S_FLIGHT::S(F)
        • K(c);S_FLIGHT,XP(E)::S(F)
        • K(c);S_FLIGHT::B(G)+S(F)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
  • Actual
    • S(C);
    • Threat
      • QAR(H)+S(F)
    • Vars
      • K(c);S_FLIGHT::S(F)
      • K(c);S_FLIGHT::B(G)+S(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).