MESON Chess Problem Database

Problem Display
PID: 263829 (8/4B3/8/1P1k4/3PN3/K7/4N2Q/1b5B w - - 0 1)

Anonymous

Tijdschrift vd NSB, 1894

8/4B3/8/1P1k4/3PN3/K7/4N2Q/1b5B

#2

8 + 2

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2+?
      • 1...Be4
        • 2.Qe5#
        • 2.Qd6#
      • 1...Ke6!
    • 1.Sd6+?
      • 1...Be4
        • 2.Qe5#
      • 1...Ke6!
    • 1.Qg3?
      • threat
        • 2.Qb3#
        • 2.Qg8#
      • 1...Kc4
        • 2.Sd6#
        • 2.Qb3#
      • 1...Ba2
        • 2.Qg8#
      • 1...Bc2
        • 2.Qg8#
      • 1...Bd3
        • 2.Qg8#
      • 1...Ke6!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Qg8#
        • 2.Qf7#
      • 1...Kc4
        • 2.Sd6#
      • 1...Ke6
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • B(a);P_SPINB(a)::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAB(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);N_GUARD,S_CUTB(a),S_FLIGHT::S(F)
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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).