MESON Chess Problem Database

Problem Display
PID: 31176 (2b1K3/2Np4/3b1N2/4k2P/6PP/2p1BP2/8/5Q2 w - - 0 1)

Trcala, Stanislav

Besedy lidu, 1901

2b1K3/2Np4/3b1N2/4k2P/6PP/2p1BP2/8/5Q2

#2

9 + 5

3437 Stanislav Trcala Sachovy odkaz 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Ba6
      • 2.Sxd7#
    • 1...Bb7
      • 2.Sxd7#
    • 1...c2
      • 2.Qa1#
  • Tries
    • 1.Qb5+?
      • 1...Kxf6
        • 2.Qg5#
      • 1...Bc5!
  • Keys
    • 1.Qa6!
      • 1...Kxf6
        • 2.Bd4#
      • 1...Bxc7
        • 2.f4#
      • 1...Bxa6
        • 2.Sxd7#
      • 1...Ba3
        • 2.f4#
      • 1...Bb4
        • 2.f4#
      • 1...Bc5
        • 2.f4#
      • 1...Be7
        • 2.f4#
      • 1...Bf8
        • 2.f4#
      • 1...Bb7
        • 2.Sxd7#
      • 1...c2
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • B(e);N_GUARD::S(G),XP(d)
    • P(a);OGATEB::QAB(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT,XS(G)::QAB1(A)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • Q(A);
    • Vars
      • K(b);P_SPINB(c),S_FLIGHT,XS(G)::B(B)
      • B(c);XS(H)::P(C)
      • B(e);N_GUARD,XQ(A)::S(G),XP(d)
      • B(c);::P(C)
      • B(e);N_GUARD::S(G),XP(d)
      • P(a);OGATEB::QAB(A)
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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).