MESON Chess Problem Database

Problem Display
PID: 32833 (4N3/1q1rpK1B/bNp1pp1B/R1nnk2p/4p2r/1p2p3/8/3R1Q2 w - - 0 1)

Hertmann, Sandor

The Problemist, 1928

4N3/1q1rpK1B/bNp1pp1B/R1nnk2p/4p2r/1p2p3/8/3R1Q2

#2

8 + 15

SOLUTION

  • SOUND
  • Sets
    • 1...Bc4
      • 2.Sxc4#
    • 1...Sc7
      • 2.Sxd7#
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qd4#
      • 1...Bxc4
        • 2.Sxc4#
      • 1...Sxb6
        • 2.Qxe6#
      • 1...Sd3
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxe6#
      • 1...Sb4
        • 2.Qxe6#
      • 1...Sf4
        • 2.Qxe4#
      • 1...Sc7
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(i);N_GUARD::S(D),XB(i)
    • S(f);P_SPINS(e),S_CUTQ(m)::S(D),XR(n)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • B(i);XQ(B)::S(D),XB(i)
      • S(f);OGATE,P_SPINS(e),XS(D)::QAR1(B),XP(k)
      • S(e);P_SPINS(f)::QAB(B)
      • S(f);OGATE,P_SPINS(e)::QAR1(B),XP(k)
      • S(f);P_SPINS(e),S_CUTR(d)::QAR1(B),XP(c)
      • S(f);P_SPINS(e),S_CUTQ(m)::S(D),XR(n)
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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).