MESON Chess Problem Database

Problem Display
PID: 203644 (4b3/2pP2rq/BNk1p1P1/n6p/NBP4b/1r4pK/6P1/4nQ2 w - - 0 1)

Hertmann, Sandor

Magyar Sakkvilag, 1924

4b3/2pP2rq/BNk1p1P1/n6p/NBP4b/1r4pK/6P1/4nQ2

#2

10 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Re7
      • 2.d8S#
    • 1...Be7
      • 2.dxe8Q#
      • 2.dxe8B#
    • 1...Sd3
      • 2.Qf3#
    • 1...Sxc4
      • 2.Qxc4#
    • 1...Sb7
      • 2.Bb5#
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qc5#
      • 1...cxb6
        • 2.Qd6#
      • 1...Re7
        • 2.d8S#
      • 1...Be7
        • 2.dxe8Q#
        • 2.dxe8B#
      • 1...Sd3
        • 2.Qf3#
      • 1...Sb7
        • 2.Bb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(j);S_CUTB(d)::P=S
    • B(d);S_CUTR(j)::PXB(l)=Q
    • S(a);N_GUARD,S_CUTR(b)::QAB(A)
    • S(e);OGATE,XP(F)::QAR2(A),XS(e)
    • S(e);SBLOCK::B(G)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • P(i);N_GUARD,XS(H)::QAR1(A)
      • R(j);S_CUTB(d)::P=S
      • B(d);S_CUTR(j)::PXB(l)=Q
      • S(a);N_GUARD,S_CUTR(b)::QAB(A)
      • S(e);SBLOCK::B(G)
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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).