MESON Chess Problem Database

Problem Display
PID: 44965 (b4B2/1n6/1p1n4/1P3N1Q/pNk5/P7/1K2P3/8 w - - 0 1)

Frankenstein, Edward Nathan

Source?, 0000

b4B2/1n6/1p1n4/1P3N1Q/pNk5/P7/1K2P3/8

#2

8 + 6

3316 Chess Problem Text Book 1887
15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb5
      • 2.Sxd6#
    • 1...Sxb5
      • 2.Qf7#
  • Tries
    • 1.Sxd6+?
      • 1...Kd4
        • 2.Sc2#
      • 1...Sxd6!
  • Keys
    • 1.e3!
      • 1...Kxb5
        • 2.Sxd6#
      • 1...Kc5
        • 2.Sxd6#
      • 1...Sxb5
        • 2.Qe2#
        • 2.Qf7#
      • 1...Sxf5
        • 2.Qe2#
      • 1...Se4
        • 2.Qe2#
      • 1...Sf7
        • 2.Qe2#
      • 1...Sc8
        • 2.Qe2#
      • 1...Se8
        • 2.Qe2#
      • 1...Sa5
        • 2.Sxd6#
      • 1...Sc5
        • 2.Sxd6#
      • 1...Sd8
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 1
  • Sets
    • K(b);S_FLIGHT,XP(E)::QAR(G)+S(F),DCHECK,XS(d)
    • S(d);N_GUARD,SBLOCK,XP(E)::QAB(G)
  • Tries
    • Try
      • S(F);CHECK,XS(d)
      • Vars
        • K(b);P-FLIGHT::S(D)
      • Refutation
        • S(e);XS(F)
  • Actual
    • P(B);
    • Vars
      • K(b);S_FLIGHT,XP(E)::QAR(G)+S(F),DCHECK,XS(d)
      • K(b);P-FLIGHT,P_SPINS(d)::QAR(G)+S(F),XS(d)
      • S(d);XS(F)::QAB(G)
      • S(d);::QAB(G)
      • S(e);N_GUARD::S(F),XS(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).