MESON Chess Problem Database

Problem Display
PID: 4844 (8/3B1b2/r1p3p1/BPk1P1N1/P6R/n2p1Q2/7p/6bK w - - 0 1)

Blake, Percy Francis

Kentish Mercury, 1892

8/3B1b2/r1p3p1/BPk1P1N1/P6R/n2p1Q2/7p/6bK

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa5
      • 2.Qxc6#
    • 1...Rb6
      • 2.Bb4#
    • 1...Ra7
      • 2.Qxc6#
    • 1...Ra8
      • 2.Qxc6#
    • 1...Be6
      • 2.Sxe6#
    • 1...Be8
      • 2.Se6#
  • Keys
    • 1.Be6!
      • 1...Rxa5
        • 2.Qxc6#
      • 1...Bxe6
        • 2.Sxe6#
      • 1...Sxb5
        • 2.Rc4#
      • 1...cxb5
        • 2.Qd5#
      • 1...Rb6
        • 2.Bb4#
      • 1...Ra7
        • 2.Qxc6#
      • 1...Ra8
        • 2.Qxc6#
      • 1...Bf2
        • 2.Qxf2#
      • 1...Be3
        • 2.Qxe3#
      • 1...Bd4
        • 2.Se4#
      • 1...Be8
        • 2.Qf8#
      • 1...Bg8
        • 2.Qf8#
      • 1...Sb1
        • 2.Rc4#
      • 1...Sc2
        • 2.Rc4#
      • 1...Sc4
        • 2.Rxc4#
      • 1...d2
        • 2.Qxa3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD,XB(E)::QAR1(B),XP(g)
    • R(f);SBLOCK::B(E)
    • R(f);N_GUARD::QAR1(B),XP(g)
    • B(i);N_GUARD::S(H),XB(i)
    • B(i);N_GUARD::S(H)
  • Actual
    • B(I);
    • Vars
      • R(f);N_GUARD,XB(E)::QAR1(B),XP(g)
      • B(i);XB(I)::S(H),XB(i)
      • S(c);N_GUARD,XP(F)::R1(D)
      • P(g);N_GUARD,XP(F)::QAR1(B)
      • R(f);SBLOCK::B(E)
      • R(f);N_GUARD::QAR1(B),XP(g)
      • B(a);N_GUARD::QAB(B),XB(a)
      • B(a);SBLOCK::S(H)
      • B(i);OGATE::QAB(B)
      • S(c);N_GUARD::R1(D)
      • S(c);N_GUARD::R1(D),XS(c)
      • P(d);OGATE::QAB(B),XS(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).