MESON Chess Problem Database

Problem Display
PID: 210173 (nN1Q2K1/b2p4/rp1p2p1/p2kPPP1/N1p1p3/4PP2/8/B7 w - - 0 1)

Maleika, Gerhard

Springaren, 1988

nN1Q2K1/b2p4/rp1p2p1/p2kPPP1/N1p1p3/4PP2/8/B7

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...dxe5
      • 2.Qxd7#
  • Tries
    • 1.Sc3+?
      • 1...Kxe5
        • 2.Qf6#
      • 1...Kc5!
  • Keys
    • 1.Qxd7!
      • threat
        • 2.Qb5#
        • 2.Qc6#
        • 2.Qe6#
        • 2.Qxd6#
        • 2.Qb7#
        • 2.Qf7#
      • 1...Bxb8
        • 2.Qb5#
        • 2.Qb7#
      • 1...exf3
        • 2.Qc6#
        • 2.Qb7#
      • 1...gxf5
        • 2.Qxd6#
        • 2.Qf7#
      • 1...c3
        • 2.Qb5#
        • 2.Qe6#
      • 1...Sc7
        • 2.Qc6#
        • 2.Qxd6#
      • 1...b5
        • 2.Qe6#
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • P(g);OGATEB,P_SPINP(j),XP(E)::QAR2(I),XP(j)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(d);P-FLIGHT,XP(E)::QAB1(I)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(I);P_PINP(g),XP(j)
    • Threat
      • DUALS(6)
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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).