MESON Chess Problem Database

Problem Display
PID: 202627 (1b2KB2/3R1p2/1p1N2b1/4k1P1/1R3NP1/2Pp1n2/5n2/8 w - - 0 1)

Nield, Joshua

Brisbane Courier, 1923

1b2KB2/3R1p2/1p1N2b1/4k1P1/1R3NP1/2Pp1n2/5n2/8

#2

9 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5
      • 2.Sxf7#
    • 1...Bh7
      • 2.Sxf7#
    • 1...Bxd6
      • 2.Bxd6#
  • Keys
    • 1.Rxf7!
      • threat
        • 2.Rb5#
      • 1...Bxf7+
        • 2.Sxf7#
      • 1...Bxd6
        • 2.Bg7#
      • 1...Be4
        • 2.Sc4#
      • 1...Bf5
        • 2.Rxf5#
      • 1...Se4
        • 2.Sc4#
      • 1...Sd4
        • 2.cxd4#
      • 1...b5
        • 2.Rxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(f);N_GUARD::S(F),XP(g)
    • B(h);OGATE,XS(F)::B(I),XB(h)
  • Actual
    • R(G);P_SPINR(G),XP(g)
    • Threat
      • R(B)
    • Vars
      • B(f);CHECK,XR(G)::S(F),XB(f)
      • B(h);SBLOCK,XS(F)::B(I)
      • B(f);N_PINR(G),SBLOCK::S(F)
      • B(f);N_PINR(G)::R1(G),XB(f)
      • S(a);SBLOCK::S(F)
      • S(c);OGATE::P(A),XS(c)
      • P(e);::R(B),XP(e)
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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).