MESON Chess Problem Database

Problem Display
PID: 189938 (2BR3r/1pp1k2n/R2p1N1N/3b2P1/1Qp1p3/8/8/4bK2 w - - 0 1)

Marble, Murray

Pittsburgh Gazette-Times, 1912

2BR3r/1pp1k2n/R2p1N1N/3b2P1/1Qp1p3/8/8/4bK2

#2

8 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Re8
      • 2.Rxe8#
    • 1...Bg8
      • 2.Re8#
    • 1...Sf8
      • 2.Re8#
    • 1...c6
      • 2.Qxd6#
  • Keys
    • 1.Raxd6!
      • threat
        • 2.Sxd5#
      • 1...Rxd8
        • 2.Re6#
      • 1...Sxf6
        • 2.gxf6#
      • 1...cxd6
        • 2.Qxd6#
      • 1...Re8
        • 2.Rxe8#
      • 1...Rf8
        • 2.R8d7#
      • 1...Bc6
        • 2.Rd2#
      • 1...Be6
        • 2.R6d7#
      • 1...Bf7
        • 2.Sf5#
      • 1...Bg8
        • 2.Re8#
      • 1...c6
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • R(j);N_GUARD::R1(H),XR(j)
    • B(d);S_CUTR(j)::R1(H)
    • S(i);S_CUTR(j)::R1(H)
    • P(g);N_GUARD::QAB1(B),XP(e)
  • Actual
    • R(D);XP(e)
    • Threat
      • S(E),XB(d)
    • Vars
      • R(j);SBLOCK,XR(H)::QAB(B)+R(D),DCHECK
      • S(i);OGATE,XS(E)::P(C),XS(i)
      • P(g);OGATE,P_SPINP(g),XR(D)::QAB1(B),XP(g)
      • R(j);N_GUARD::R1(H),XR(j)
      • R(j);P_PINS(E),SBLOCK::R1(H)
      • B(d);OGATE::QAB(B)+R(D)
      • B(d);SBLOCK::QAB(B)+R(D),DCHECK
      • B(d);SBLOCK::S(F)
      • B(d);S_CUTR(j)::R1(H)
      • P(g);OGATEB::QAR(B),XP(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).