MESON Chess Problem Database

Problem Display
PID: 193862 (br6/4Q3/2kPP3/3p4/1p1K4/1B6/8/8 w - - 0 1)

Mortriner, Lucius

Pittsburgh Gazette-Times, 1916

br6/4Q3/2kPP3/3p4/1p1K4/1B6/8/8

#2

5 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Qc7#
    • 1...Rb6
      • 2.Qd7#
  • Tries
    • 1.Ba4+?
      • 1...Rb5
        • 2.Qc7#
      • 1...Kb6!
  • Keys
    • 1.Qa7!
      • 1...Kb5
        • 2.Ba4#
      • 1...Kxd6
        • 2.Qd7#
      • 1...Rb5
        • 2.Qc7#
      • 1...Rb6
        • 2.Qd7#
      • 1...Rb7
        • 2.Qc5#
      • 1...Rc8
        • 2.Qa6#
      • 1...Rd8
        • 2.Qa6#
      • 1...Re8
        • 2.Qa6#
      • 1...Rf8
        • 2.Qa6#
      • 1...Rg8
        • 2.Qa6#
      • 1...Rh8
        • 2.Qa6#
      • 1...Bb7
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • R(e);SBLOCK::QAR1(E)
    • R(e);SBLOCK::QAB1(E)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • R(e);P_SPINR(e)::QAR1(E)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(c);S_FLIGHT::B(A)
      • K(c);P-FLIGHT,XP(C)::QAR1(E)
      • R(e);SBLOCK::QAR1(E)
      • R(e);SBLOCK::QAB1(E)
      • R(e);N_GUARD::QAR2(E)
      • B(d);SBLOCK::QAR1(E)
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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).