MESON Chess Problem Database

Problem Display
PID: 222705 (3R4/8/PkN5/N1pn4/8/3B1K2/Q4B2/8 w - - 0 1)

Bloomfield, W

Newark Sunday Call, 1883

3R4/8/PkN5/N1pn4/8/3B1K2/Q4B2/8

#2

8 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sc7
      • 2.Rb8#
  • Tries
    • 1.Qb1+?
      • 1...Kc7
        • 2.Qb7#
        • 2.Qb8#
      • 1...Sb4!
    • 1.Qb3+?
      • 1...Kc7
        • 2.Qb7#
        • 2.Qb8#
      • 1...Sb4!
    • 1.Qb2+?
      • 1...Kc7
        • 2.Qb7#
        • 2.Qb8#
      • 1...Sb4!
  • Keys
    • 1.a7!
      • threat
        • 2.a8S#
      • 1...Kc7
        • 2.a8S#
      • 1...Sc7
        • 2.Rb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::R(H)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • Q(A);CHECK
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • Q(A);CHECK
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • P(F);
    • Threat
      • P=S
    • Vars
      • K(c);N_SPINP(a),S_FLIGHT::P=S
      • S(b);SBLOCK::R(H)
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).