MESON Chess Problem Database

Problem Display
PID: 226921 (1B6/2NpQK1B/qP6/1r2R3/3k1b2/8/1nPN1P2/2n5 w - - 0 1)

Svacina, Jan

Tidskrift for Schack, 1910

1B6/2NpQK1B/qP6/1r2R3/3k1b2/8/1nPN1P2/2n5

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qb7
      • 2.Sxb5#
    • 1...Qc8
      • 2.Sxb5#
    • 1...Qa1
      • 2.Sxb5#
    • 1...Qa3
      • 2.Sxb5#
    • 1...Qa7
      • 2.Sxb5#
    • 1...Qa8
      • 2.Sxb5#
    • 1...Rb3
      • 2.Qc5#
    • 1...Rb4
      • 2.Qc5#
    • 1...Rc5
      • 2.Qxc5#
    • 1...Rxb6
      • 2.Qc5#
  • Tries
    • 1.Qb4+?
      • 1...Kxe5
        • 2.Sf3#
      • 1...Sc4
        • 2.Sf3#
        • 2.Re4#
      • 1...Rxb4!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Re4#
      • 1...Kxe5
        • 2.Sf3#
      • 1...Qxa3
        • 2.Sxb5#
      • 1...Rxe5
        • 2.c3#
      • 1...Bxe5
        • 2.Qe3#
        • 2.c3#
      • 1...Rb3
        • 2.Qc5#
      • 1...Sb3
        • 2.Qxb2#
      • 1...Qb7
        • 2.Sxb5#
      • 1...Qa8
        • 2.Sxb5#
      • 1...Rb4
        • 2.Rd5#
      • 1...d5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • Q(f);N_GUARD::S(F),XR(e)
    • R(e);N_GUARD::QAB1(G)
    • R(e);N_GUARD::QAB1(G),XR(e)
    • R(e);N_GUARD,XP(E)::QAB1(G)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(c);S_FLIGHT,XR(D)::S(B)
      • Refutation
        • R(e);XQ(G)
  • Actual
    • Q(G);
    • Threat
      • R1(D)
    • Vars
      • K(c);S_FLIGHT,XR(D)::S(B)
      • Q(f);N_GUARD,XQ(G)::S(F),XR(e)
      • R(e);SBLOCK,XR(D)::P(A)
      • R(e);N_GUARD::QAB1(G)
      • S(a);S_CUTR(e)::QAB(G),XS(b)
      • Q(f);N_GUARD::S(F),XR(e)
      • R(e);N_GUARD::R1(D)
      • P(g);N_GUARD::S(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).