MESON Chess Problem Database

Problem Display
PID: 199897 (1Rb2B2/7p/p2p2pP/4k1K1/2Pp4/8/5p2/1Q6 w - - 0 1)

Hoppener, B

Haagsche Courant, 1898

1Rb2B2/7p/p2p2pP/4k1K1/2Pp4/8/5p2/1Q6

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Bg7#
    • 1...Bb7
      • 2.Re8#
  • Tries
    • 1.Qxg6?
      • threat
        • 2.Bxd6#
        • 2.Bg7#
      • 1...Bf5
        • 2.Qxf5#
      • 1...d3
        • 2.Bg7#
      • 1...f1Q
        • 2.Bxd6#
      • 1...f1R
        • 2.Bxd6#
      • 1...Be6
        • 2.Bg7#
      • 1...d5
        • 2.Bd6#
        • 2.Bg7#
      • 1...hxg6!
    • 1.Qh1?
      • threat
        • 2.Qd5#
      • 1...Be6
        • 2.Bg7#
      • 1...Bb7
        • 2.Re8#
      • 1...d5
        • 2.Qxd5#
      • 1...Ke6!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Qd5#
      • 1...Ke6
        • 2.Qe7#
      • 1...Bxb7
        • 2.Re8#
      • 1...d5
        • 2.Qxd5#
      • 1...Be6
        • 2.Bg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(h);SBLOCK::B(F)
    • B(h);OGATE::R(E)
  • Tries
    • Try
      • Q(A);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • B(h);N_GUARD::QAR1(A),XB(h)
        • P(b);::B(F)
        • P(a);::B(F),XP(e)
        • B(h);::B(F)
      • Refutation
        • P(g);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • B(h);SBLOCK::B(F)
        • B(h);OGATE::R(E)
        • P(e);::QAR1(A),XP(e)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(c);P-FLIGHT::QAR1(A)
      • B(h);OGATE,XQ(A)::R(E)
      • P(e);::QAR1(A),XP(e)
      • B(h);SBLOCK::B(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).