MESON Chess Problem Database

Problem Display
PID: 223022 (8/B7/2n3N1/2nk2p1/1p4B1/1P3P2/4N2Q/7K w - - 0 1)

Slater, George James

1st Prize, Milwaukee Sunday Telegraph, 1886

8/B7/2n3N1/2nk2p1/1p4B1/1P3P2/4N2Q/7K

#2

8 + 5

5454 Near Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Se7#
    • 1...Sa5
      • 2.Se7#
    • 1...Sxa7
      • 2.Se7#
    • 1...Se7
      • 2.Sxe7#
    • 1...Sb8
      • 2.Se7#
    • 1...Sd8
      • 2.Se7#
  • Tries
    • 1.Sc3+?
      • 1...Kd4
        • 2.Qd2#
      • 1...bxc3!
  • Keys
    • 1.Sd4!
      • 1...Kxd4
        • 2.Qd2#
      • 1...Sxb3
        • 2.Be6#
      • 1...Sxd4
        • 2.Se7#
      • 1...Sxa7
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sd3
        • 2.Be6#
      • 1...Sa4
        • 2.Be6#
      • 1...Se4
        • 2.Be6#
      • 1...Sa6
        • 2.Be6#
      • 1...Se6
        • 2.Bxe6#
      • 1...Sb7
        • 2.Be6#
      • 1...Sd7
        • 2.Be6#
      • 1...Sa5
        • 2.Qe5#
      • 1...Se7
        • 2.Qe5#
      • 1...Sb8
        • 2.Qe5#
      • 1...Sd8
        • 2.Qe5#

This anticipates 193576(1915)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 5
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD::S(G)
    • S(e);N_GUARD,XB(H)::S(G)
    • S(e);N_GUARD::S(G),XS(e)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINS(b)::QAR2(C)
      • Refutation
        • P(a);XS(B)
  • Actual
    • S(B);
    • Vars
      • K(c);OGATEB,P-FLIGHT,P_SPINS(b),XS(B)::QAR2(C)
      • S(b);N_GUARD,XP(D)::B(F)
      • S(e);N_GUARD,SBLOCK,XS(B)::S(G)
      • S(e);N_GUARD,XB(H)::QAR1(C)
      • S(e);N_GUARD::QAR1(C),XS(e)
      • S(b);N_GUARD::B(F)
      • S(b);N_GUARD::B(F),XS(b)
      • S(e);N_GUARD::QAR1(C)
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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).