MESON Chess Problem Database

Problem Display
PID: 163595 (1r3n2/bpB2K2/2P1P2Q/3k4/1p1p4/3B4/2N5/8 w - - 0 1)

Frankenstein, Edward Nathan

Sunday Times, 1910

1r3n2/bpB2K2/2P1P2Q/3k4/1p1p4/3B4/2N5/8

#2

7 + 7

15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Qh1#
    • 1...bxc6
      • 2.Qg5#
      • 2.Qh5#
  • Tries
    • 1.Qf4?
      • threat
        • 2.Qd6#
      • 1...Kc5
        • 2.Qd6#
      • 1...Kxc6
        • 2.Qd6#
      • 1...Bc5
        • 2.Qf3#
        • 2.Qe4#
      • 1...Rd8!
    • 1.Qh2?
      • threat
        • 2.Qd6#
      • 1...Kc5
        • 2.Qd6#
      • 1...Kxc6
        • 2.Qd6#
      • 1...Bc5
        • 2.Qh1#
        • 2.Qg2#
      • 1...Rd8!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Sxb4#
      • 1...Kc5
        • 2.Se3#
      • 1...Kxc6
        • 2.Sxb4#
      • 1...bxc6
        • 2.Qg5#
      • 1...Bc5
        • 2.Qh1#
      • 1...b3
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(d);SBLOCK::QAB(E)
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • K(c);P-FLIGHT::QAB1(E)
        • K(c);S_FLIGHT,XP(C)::QAR1(E)
      • Refutation
        • R(f);
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • K(c);P-FLIGHT::QAB1(E)
        • K(c);S_FLIGHT,XP(C)::QAR1(E)
      • Refutation
        • R(f);
  • Actual
    • Q(E);
    • Threat
      • S(A),XP(a)
    • Vars
      • K(c);P-FLIGHT::QAR(E)+S(A)
      • K(c);S_FLIGHT,XP(C)::QAR(E)+S(A),DCHECK,XP(a)
      • P(e);SBLOCK,XP(C)::QAR(E)
      • B(d);SBLOCK::QAB(E)
      • P(a);::S(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).