MESON Chess Problem Database

Problem Display
PID: 228103 (n1K5/r1p4B/Nb5P/pN1P1RB1/1p2k1bQ/q1p5/2P2n2/3R2r1 w - - 0 1)

Hirsch, Hugo

Tidskrift for Schack, 1911

n1K5/r1p4B/Nb5P/pN1P1RB1/1p2k1bQ/q1p5/2P2n2/3R2r1

#2

11 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Rxd4#
    • 1...Bc5
      • 2.Sxc5#
    • 1...Sd3
      • 2.cxd3#
    • 1...b3
      • 2.Sxc3#
    • 1...c5
      • 2.Sd6#
    • 1...c6
      • 2.Sd6#
  • Tries
    • 1.Re1+?
      • 1...Be3
        • 2.Sc5#
        • 2.Rxe3#
      • 1...Rxe1!
  • Keys
    • 1.Bc1!
      • threat
        • 2.Qe7#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Bc5
        • 2.Sxc5#
      • 1...Sd3
        • 2.cxd3#
      • 1...b3
        • 2.Sxc3#
      • 1...c5
        • 2.Sd6#
      • 1...c6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(i);N_GUARD::R1(A),XB(i)
    • B(i);N_GUARD::S(H),XB(i)
    • S(b);OGATE::P(B),XS(b)
    • P(e);N_GUARD,S_CUTQ(c)::S(D),XP(d)
    • P(k);N_GUARD::S(D)
  • Tries
    • Try
      • R(A);CHECK
      • Refutation
        • R(a);XR(A)
  • Actual
    • B(G);
    • Threat
      • QAR(C)
    • Vars
      • B(i);N_GUARD::R1(A),XB(i)
      • B(i);N_GUARD::S(H),XB(i)
      • S(b);OGATE::P(B),XS(b)
      • P(e);N_GUARD,S_CUTQ(c)::S(D),XP(d)
      • P(k);N_GUARD::S(D)
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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).