MESON Chess Problem Database

Problem Display
PID: 142326 (3Q4/4N1k1/6P1/3P2pb/6p1/6P1/2R5/1K6 w - - 0 1)

Ferber, Eugene

Source?, 1907

3Q4/4N1k1/6P1/3P2pb/6p1/6P1/2R5/1K6

#2

7 + 4

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kh6
      • 2.Qf8#
      • 2.Qh8#
  • Tries
    • 1.Re2?
      • 1...Kf6
        • 2.Qf8#
        • 2.Qh8#
      • 1...Kh6
        • 2.Qf8#
        • 2.Qh8#
      • 1...Bxg6+!
    • 1.Rf2?
      • threat
        • 2.Qf8#
      • 1...Kh6
        • 2.Qf8#
        • 2.Qh8#
      • 1...Bxg6+!
    • 1.Rc6?
      • threat
        • 2.Sf5#
      • 1...Kh6
        • 2.Sf5#
        • 2.Qf8#
        • 2.Qh8#
      • 1...Bxg6+!
    • 1.Qg8+?
      • 1...Kh6
        • 2.Sf5#
        • 2.Qh7#
        • 2.Qf8#
        • 2.Qh8#
      • 1...Kf6!
  • Keys
    • 1.Rc7!
      • 1...Bxg6+
        • 2.Sf5#
      • 1...Kf6
        • 2.Qh8#
      • 1...Kh6
        • 2.Qf8#
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Refutation
        • B(c);CHECK,XP(E)
    • Try
      • R(B);
      • Threat
        • QAB1(G)
      • Refutation
        • B(c);CHECK,XP(E)
    • Try
      • R(B);
      • Threat
        • S(F)
      • Refutation
        • B(c);CHECK,XP(E)
    • Try
      • Q(G);CHECK
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • B(c);CHECK,SBLOCK,XP(E)::R(B)+S(F),DCHECK
      • K(d);S_FLIGHT::QAB(G)
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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).