MESON Chess Problem Database

Problem Display
PID: 55925 (7K/P2B4/1p6/qpPk4/p1NB1Rn1/P7/2R1PP2/8 w - - 0 1)

Elkhan, Alexander A

3rd HM., Brisbane Courier, 1913

7K/P2B4/1p6/qpPk4/p1NB1Rn1/P7/2R1PP2/8

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Sxb6#
      • 2.a8Q#
      • 2.a8B#
    • 1...Qd2
      • 2.Sxb6#
      • 2.a8Q#
      • 2.a8B#
    • 1...Qc3
      • 2.Sxb6#
    • 1...Qb4
      • 2.Sxb6#
      • 2.a8Q#
      • 2.a8B#
    • 1...Sxf2
      • 2.Se3#
    • 1...Sh2
      • 2.Se3#
    • 1...Se3
      • 2.Sxe3#
    • 1...Se5
      • 2.Se3#
    • 1...Sf6
      • 2.Se3#
    • 1...Sh6
      • 2.Se3#
  • Keys
    • 1.Rd2!
      • 1...Kxc4
        • 2.Be6#
      • 1...Qxd2
        • 2.Sxb6#
      • 1...Qxa7
        • 2.Be3#
      • 1...Sxf2
        • 2.Se3#
      • 1...bxc4
        • 2.e4#
      • 1...bxc5
        • 2.Bc3#
      • 1...Qc3
        • 2.Sxb6#
      • 1...Qb4
        • 2.Sxb6#
      • 1...Qa6
        • 2.Be3#
      • 1...Sh2
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#
      • 1...Se5
        • 2.Se3#
      • 1...Sf6
        • 2.Se3#
      • 1...Sh6
        • 2.Se3#
      • 1...b4
        • 2.Be3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • Q(c);N_GUARD,P_PINB(F)::S(E),XP(f)
    • S(b);N_GUARD,XP(C)::S(E)
    • S(b);N_GUARD::S(E)
    • S(b);N_GUARD::S(E),XS(b)
  • Actual
    • R(A);
    • Vars
      • K(e);S_FLIGHT,XS(E)::B(J)
      • Q(c);N_GUARD,XR(A)::S(E),XP(f)
      • Q(c);N_GUARD,XP(I)::R(A)+B(F)
      • S(b);N_GUARD,XP(C)::S(E)
      • P(d);SBLOCK,XS(E)::P(B)
      • P(f);SBLOCK,XP(H)::R(A)+B(F)
      • Q(c);N_GUARD,P_PINB(F)::S(E),XP(f)
      • Q(c);N_GUARD::S(E),XP(f)
      • Q(c);N_GUARD::R(A)+B(F)
      • S(b);N_GUARD::S(E)
      • S(b);N_GUARD::S(E),XS(b)
      • P(d);S_CUTQ(c)::R(A)+B(F)
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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).