MESON Chess Problem Database

Problem Display
PID: 193395 (2kb4/Bp3N2/Pr1p4/r7/N3R1R1/1pq3pB/2Q5/6K1 w - - 0 1)

Marble, Murray

Rice, William Bayard

Pittsburgh Gazette-Times, 1914

2kb4/Bp3N2/Pr1p4/r7/N3R1R1/1pq3pB/2Q5/6K1

#2

9 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qc7
      • 2.Sxb6#
    • 1...Bc7
      • 2.Rg8#
  • Keys
    • 1.Re7!
      • threat
        • 2.Rc4#
      • 1...Qc5+
        • 2.Rd4#
      • 1...Qc4
        • 2.Rxc4#
      • 1...Qc6
        • 2.Sxd6#
      • 1...Qc7
        • 2.Sxb6#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Rc6
        • 2.axb7#
      • 1...Bc7
        • 2.Rg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(b);S_CUTB(i)::S(D),XR(e)
    • B(i);N_SPINQ(b),SBLOCK::B(C)+R(F),DCHECK
  • Actual
    • R(E);
    • Threat
      • B(C)+R(F),DCHECK
    • Vars
      • Q(b);CHECK,S_CUTR(d)::B(C)+R(F)
      • Q(b);::B(C)+R(F),DCHECK,XQ(b)
      • Q(b);S_CUTR(e)::S(I),XP(f)
      • Q(b);S_CUTB(i)::S(D),XR(e)
      • R(d);N_GUARD::QAB(B),XR(d)
      • R(e);N_GUARD,N_SPINQ(b)::P(G),XP(g)
      • B(i);N_SPINQ(b)::B(C)+R(F),DCHECK
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).