MESON Chess Problem Database

Problem Display
PID: 196026 (5n1Q/2p2KP1/P7/2Pk4/N4P2/1P4P1/2N1B1p1/6n1 w - - 0 1)

van Eelde, Antonie Clarus Johannes

Haagsche Courant, 1900

5n1Q/2p2KP1/P7/2Pk4/N4P2/1P4P1/2N1B1p1/6n1

#2

11 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Bxf3#
    • 1...Sh3
      • 2.Bf3#
  • Tries
    • 1.Qh5+?
      • 1...Ke4
        • 2.Sc3#
        • 2.Qe5#
      • 1...Kc6!
    • 1.gxf8S?
      • 1...Ke4
        • 2.Qe5#
      • 1...Kc6
        • 2.Sb4#
      • 1...Sf3
        • 2.Bxf3#
      • 1...Sh3
        • 2.Bf3#
      • 1...c6
        • 2.Qd4#
        • 2.Qe5#
      • 1...Sxe2!
  • Keys
    • 1.Qh3!
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Sb4#
      • 1...Sxe2
        • 2.Qxg2#
      • 1...Sxh3
        • 2.Bf3#
      • 1...Sf3
        • 2.Bxf3#
      • 1...Se6
        • 2.Qxe6#
      • 1...Sg6
        • 2.Qe6#
      • 1...Sd7
        • 2.Qe6#
      • 1...Sh7
        • 2.Qe6#
      • 1...c6
        • 2.Qf5#

This is a version

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::B(B),XS(a)
    • S(a);N_GUARD::B(B)
  • Tries
    • Try
      • Q(K);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(J);XS(e)
      • Vars
        • K(c);S_FLIGHT::QAR1(K)
        • K(c);S_FLIGHT::S(A)
        • S(a);N_GUARD::B(B),XS(a)
        • S(a);N_GUARD::B(B)
      • Refutation
        • S(a);XB(B)
  • Actual
    • Q(K);
    • Vars
      • K(c);S_FLIGHT::S(E)
      • K(c);S_FLIGHT::S(A)
      • S(a);N_GUARD,XB(B)::QAB(K),XP(b)
      • S(a);N_GUARD,XQ(K)::B(B)
      • S(a);N_GUARD::B(B),XS(a)
      • S(e);N_GUARD::QAB1(K),XS(e)
      • S(e);N_GUARD::QAB1(K)
      • P(d);SBLOCK::QAR2(K)
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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).