MESON Chess Problem Database

Problem Display
PID: 227662 (3N1bb1/2K3p1/7B/4k2P/2p1P3/2pP2Pn/2P2N2/2Q2n2 w - - 0 1)

Braun, Bella

Ujsag, 1926

3N1bb1/2K3p1/7B/4k2P/2p1P3/2pP2Pn/2P2N2/2Q2n2

#2

10 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Bxg7#
    • 1...Bb4
      • 2.Bxg7#
    • 1...Bc5
      • 2.Bxg7#
  • Tries
    • 1.Qg5+?
      • 1...Kd4
        • 2.Sc6#
      • 1...Sxg5!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qxc3#
      • 1...Bd6+
        • 2.Qxd6#
      • 1...Kd4
        • 2.Sc6#
      • 1...Kf6
        • 2.Sg4#
      • 1...Bxa3
        • 2.Bxg7#
      • 1...Bb4
        • 2.Bxg7#
      • 1...Bc5
        • 2.Bxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(g);N_GUARD::B(H),XP(f)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);S_FLIGHT::S(J)
      • Refutation
        • S(c);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB(A),XP(b)
    • Vars
      • B(g);CHECK,N_GUARD::QAB1(A),XB(g)
      • K(e);S_FLIGHT::S(J)
      • K(e);S_FLIGHT::S(C)
      • B(g);N_GUARD,XQ(A)::B(H),XP(f)
      • B(g);N_GUARD::B(H),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).