MESON Chess Problem Database

Problem Display
PID: 51069 (2n2K2/6Q1/5N2/4k3/1P1N1b1R/1P2p3/2p2B2/5R2 w - - 0 1)

Russell, JA

Burnley Express, 1880

2n2K2/6Q1/5N2/4k3/1P1N1b1R/1P2p3/2p2B2/5R2

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bg3
      • 2.Bxg3#
  • Tries
    • 1.Qe7+?
      • 1...Kxd4
        • 2.Qxe3#
      • 1...Sxe7!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qxf4#
      • 1...Kxd4
        • 2.Qxe3#
      • 1...Kd6
        • 2.Qxf4#
      • 1...Kxf6
        • 2.Qg7#
      • 1...Bxg3
        • 2.Bxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(c);OGATEB::B(B),XB(c)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);OGATE,P_SPINB(c),P_SPINP(b),S_FLIGHT,XS(E)::QAB1(H),XP(b)
      • Refutation
        • S(e);XQ(H)
  • Actual
    • Q(H);P_PINB(c)
    • Threat
      • QAB1(H),XB(c)
    • Vars
      • K(d);P_SPINP(b),S_FLIGHT,XS(E)::QAB1(H),XP(b)
      • K(d);S_FLIGHT::QAB(H),XB(c)
      • K(d);N_SPINB(c),OGATEB,S_FLIGHT,XS(G)::QAB1(H)
      • B(c);N_SPINB(c),OGATE,XQ(H)::B(B),XB(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).