MESON Chess Problem Database

Problem Display
PID: 58859 (5K2/6R1/1B3R2/3p3B/3r3k/3P4/1p4P1/1Qb5 w - - 0 1)

Greenwood, William M

2nd HM., Brisbane Courier, 1921

5K2/6R1/1B3R2/3p3B/3r3k/3P4/1p4P1/1Qb5

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Qh1#
    • 1...Be3
      • 2.Qh1#
    • 1...Bh6
      • 2.Qh1#
  • Tries
    • 1.Rf5?
      • 1...Rxd3
        • 2.Rg4#
      • 1...Rg4
        • 2.Rxg4#
      • 1...Ra4
        • 2.Bf2#
      • 1...Rb4
        • 2.Bf2#
      • 1...Rc4
        • 2.Bf2#
      • 1...Re4
        • 2.Bf2#
      • 1...Rf4
        • 2.Bd8#
      • 1...Bd2
        • 2.Qh1#
      • 1...Be3
        • 2.Qh1#
      • 1...Bf4
        • 2.Rg4#
      • 1...Bh6
        • 2.Qe1#
        • 2.Qh1#
      • 1...Bg5!
  • Keys
    • 1.Rh6!
      • 1...Rf4+
        • 2.Bf7#
      • 1...Rxd3
        • 2.Rg4#
      • 1...Bxh6
        • 2.Qh1#
      • 1...Rg4
        • 2.Rxg4#
      • 1...Bg5
        • 2.Qe1#
      • 1...Ra4
        • 2.Bf2#
      • 1...Rb4
        • 2.Bf2#
      • 1...Rc4
        • 2.Bf2#
      • 1...Re4
        • 2.Bf2#
      • 1...Bd2
        • 2.Qh1#
      • 1...Be3
        • 2.Qh1#
      • 1...Bf4
        • 2.Rg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::QAR(A)
    • B(a);OGATE,P_PINR(G)::QAR(A)
  • Tries
    • Try
      • R(F);
      • Vars
        • R(c);N_GUARD,XP(C)::R1(G)
        • R(c);N_GUARD::R1(G),XR(c)
        • R(c);OGATE,SBLOCK::B(E)
        • R(c);OGATE::B(E)
        • R(c);P_PINR(F),S_CUTB(a)::B(E)
        • B(a);OGATE::QAR(A)
        • B(a);S_CUTR(c)::R1(G)
      • Refutation
        • B(a);
  • Actual
    • R(F);
    • Vars
      • R(c);CHECK,S_CUTB(a)::R(F)+B(D)
      • R(c);N_GUARD,XP(C)::R1(G)
      • B(a);OGATE,P_PINR(G),XR(F)::QAR(A)
      • R(c);N_GUARD::R1(G),XR(c)
      • B(a);OGATE::QAB(A)
      • R(c);OGATE,SBLOCK::B(E)
      • R(c);OGATE::B(E)
      • B(a);OGATE::QAR(A)
      • B(a);S_CUTR(c)::R1(G)
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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).