MESON Chess Problem Database

Problem Display
PID: 196978 (1b1Rr1bQ/q2ppP2/3p2p1/8/2PPk1K1/2B4n/5p2/4rB2 w - - 0 1)

Nield, Joshua

Brisbane Courier, 1919

1b1Rr1bQ/q2ppP2/3p2p1/8/2PPk1K1/2B4n/5p2/4rB2

#2

8 + 12

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Qxd4#
  • Tries
    • 1.Bd3+?
      • 1...Ke3
        • 2.Qxh3#
      • 1...Kxd3!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qf3#
      • 1...Ke3
        • 2.Qf3#
      • 1...Qxd4
        • 2.Qxd4#
      • 1...exf6
        • 2.Rxe8#
      • 1...Re3
        • 2.Qxg6#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • Q(g);OGATE,XP(D)::QAR1(H),XQ(g)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR(H),XS(c)
      • Refutation
        • K(d);S_FLIGHT,XB(A)
  • Actual
    • Q(H);
    • Threat
      • QAB1(H)
    • Vars
      • K(d);P-FLIGHT::QAR1(H)
      • Q(g);OGATE,XP(D)::QAR1(H),XQ(g)
      • P(i);OGATEB,XQ(H)::R(G),XR(k)
      • R(a);SBLOCK::QAB(H),XP(f)
      • S(c);N_GUARD::QAR1(H)
      • S(c);N_GUARD::QAR1(H),XS(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).