MESON Chess Problem Database

Problem Display
PID: 154151 (4n3/8/3n1pK1/3k4/Q3R1N1/4B3/2P5/8 w - - 0 1)

Slater, George James

3rd Prize, Hampstead and Highgate Express, 1900

4n3/8/3n1pK1/3k4/Q3R1N1/4B3/2P5/8

#2

6 + 4

119 Tidskrift for Schack 1909

SOLUTION

  • SOUND
  • Sets
    • 1...Sc7
      • 2.Sxf6#
    • 1...Sg7
      • 2.Sxf6#
    • 1...f5
      • 2.Re5#
  • Tries
    • 1.Rd4+?
      • 1...Kc5
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rd3#
      • 1...Ke6!
    • 1.Qb5+?
      • 1...Kxe4
        • 2.Qc6#
      • 1...Sxb5!
    • 1.Qd7?
      • 1...Kxe4
        • 2.Qc6#
      • 1...Sc7
        • 2.Sxf6#
      • 1...Sg7
        • 2.Sxf6#
      • 1...f5!
  • Keys
    • 1.Qa6!
      • 1...Kxe4
        • 2.Qc6#
      • 1...Sxe4
        • 2.c4#
      • 1...Sc4
        • 2.Qe6#
      • 1...Sb5
        • 2.Qe6#
      • 1...Sf5
        • 2.Qe6#
      • 1...Sb7
        • 2.Qe6#
      • 1...Sf7
        • 2.Qe6#
      • 1...Sc8
        • 2.Qe6#
      • 1...Sc7
        • 2.Sxf6#
      • 1...Sg7
        • 2.Sxf6#
      • 1...f5
        • 2.Re5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD::S(E),XP(c)
    • P(c);N_GUARD::R1(D)
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(D)::QAB(C)
      • Refutation
        • S(b);XQ(C)
    • Try
      • Q(C);P_PINS(b)
      • Vars
        • K(a);N_SPINS(b),S_FLIGHT,XR(D)::QAB(C)
        • S(d);N_GUARD::S(E),XP(c)
      • Refutation
        • P(c);
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT,XR(D)::QAB(C)
      • S(b);N_GUARD,SBLOCK,XR(D)::P(A)
      • S(b);OGATE::QAB1(C)
      • S(d);N_GUARD::S(E),XP(c)
      • P(c);N_GUARD::R1(D)
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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).