MESON Chess Problem Database

Problem Display
PID: 51059 (8/3pp1K1/2pP4/3k1N1R/8/3P4/8/3Q4 w - - 0 1)

Crake, James

HM., Burnley Express, 1880-1881

8/3pp1K1/2pP4/3k1N1R/8/3P4/8/3Q4

#2

6 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qb3+?
      • 1...Kc5
        • 2.d4#
      • 1...Ke5!
    • 1.Qf3+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Ke6
        • 2.Qe4#
      • 1...Kc5!
    • 1.Qg4?
      • 1...Ke5
        • 2.Qe4#
      • 1...Ke6
        • 2.Qe4#
      • 1...exd6
        • 2.Se3#
        • 2.Sg3#
        • 2.Sd4#
        • 2.Sh4#
        • 2.Sh6#
        • 2.Se7#
      • 1...c5
        • 2.Qe4#
      • 1...e5
        • 2.Qc4#
      • 1...e6
        • 2.Qd4#
      • 1...Kc5!
    • 1.Qh1+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Ke6
        • 2.Qe4#
      • 1...Kc5!
  • Keys
    • 1.Qa4!
      • 1...Kc5
        • 2.Qa5#
      • 1...Ke5
        • 2.Qe4#
      • 1...Ke6
        • 2.Qe4#
      • 1...exd6
        • 2.Sd4#
      • 1...c5
        • 2.Qe4#
      • 1...e5
        • 2.Qc4#
      • 1...e6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::P(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAR2(A)
        • P(b);SBLOCK::QAB1(A)
        • P(d);SBLOCK::QAB1(A)
        • P(d);SBLOCK::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT::QAR2(A)
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::QAR2(A)
      • P(d);N_GUARD,SBLOCK,XP(E)::R(D)+S(C)
      • P(b);SBLOCK::QAB1(A)
      • P(d);SBLOCK::QAB1(A)
      • P(d);SBLOCK::QAR1(A)
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).