MESON Chess Problem Database

Problem Display
PID: 189945 (5bq1/n1K1p1Pp/5p2/1pkPPQ2/4R3/P7/nP1P2p1/5b2 w - - 0 1)

Hody, Janos

Pesti Naplo, 1912

5bq1/n1K1p1Pp/5p2/1pkPPQ2/4R3/P7/nP1P2p1/5b2

#2

9 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.e6#
  • Tries
    • 1.b4+?
      • 1...Kxd5
        • 2.e6#
      • 1...Sxb4!
  • Keys
    • 1.e6!
      • threat
        • 2.d6#
      • 1...Qxe6
        • 2.dxe6#
      • 1...Bc4
        • 2.d4#
      • 1...Sc3
        • 2.b4#
      • 1...Sb4
        • 2.axb4#
      • 1...Sc6
        • 2.dxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(e);P-FLIGHT,XP(E)::QAR(G)+P(F)
  • Tries
    • Try
      • P(A);CHECK
      • Vars
        • K(e);P-FLIGHT,XP(E)::QAR(G)+P(F)
      • Refutation
        • S(b);XP(A)
  • Actual
    • P(F);
    • Threat
      • QAR(G)+P(E)
    • Vars
      • Q(k);OGATE,XP(F)::QAR(G)+P(E),XQ(k)
      • B(a);SBLOCK::P(B)
      • S(b);N_GUARD::P(A)
      • S(b);OGATE::P(C),XS(b)
      • S(g);OGATE::QAR(G)+P(E),XS(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).