MESON Chess Problem Database

Problem Display
PID: 142327 (4N3/3r4/8/R1N1k3/1Q2B3/1P2p1pP/8/1Kb4b w - - 0 1)

Anonymous

Australasian (The), 1922

(First published on Fri Aug 25 1922)

4N3/3r4/8/R1N1k3/1Q2B3/1P2p1pP/8/1Kb4b

#2

8 + 6

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Se6#
    • 1...Bxe4+
      • 2.Qxe4#
  • Tries
    • 1.Sxd7+?
      • 1...Kf4
        • 2.Bxh1#
        • 2.Bg2#
        • 2.Rf5#
      • 1...Ke6!
    • 1.Qc3+?
      • 1...Kf4
        • 2.Qf6#
      • 1...Rd4!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qf6#
      • 1...Bxe4+
        • 2.Sd3#
      • 1...Kd4
        • 2.Qf6#
      • 1...Kf4
        • 2.Qf6#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Rf7
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::S(G)
    • B(b);CHECK,OGATE,XB(E)::QAR1(D),XB(b)
  • Tries
    • Try
      • S(G);CHECK,XR(f)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(e);OGATE,S_FLIGHT::QAR2(D)
      • Refutation
        • R(f);P_SPINR(f)
  • Actual
    • Q(D);
    • Threat
      • QAB1(D)
    • Vars
      • B(b);CHECK,SBLOCK,XB(E)::R(F)+S(G),DCHECK
      • K(e);S_FLIGHT::QAB(D)
      • K(e);S_FLIGHT::QAR2(D)
      • R(f);N_GUARD::QAB1(D),XR(f)
      • R(f);N_GUARD::QAB1(D)
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).