MESON Chess Problem Database

Problem Display
PID: 143424 (7B/4p3/bp5R/R1q2k1P/5N1P/3npP2/2n1N3/1B3K2 w - - 0 1)

Paslack, Rainer

2nd Comm., Die Schwalbe, 2011

7B/4p3/bp5R/R1q2k1P/5N1P/3npP2/2n1N3/1B3K2

#2

10 + 8

23 Die Schwalbe 2013

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Rf6#
  • Tries
    • 1.Sg2?
      • threat
        • 2.Sg3#
      • 1...Sc1
        • 2.Sxe3#
      • 1...Sde1
        • 2.Sxe3#
      • 1...Sb2
        • 2.Sxe3#
      • 1...Sf2
        • 2.Sxe3#
      • 1...Sdb4
        • 2.Sxe3#
      • 1...Sf4
        • 2.Sxe3#
      • 1...Se5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sg3#
      • 1...Se5
        • 2.Sg7#
      • 1...Sc1
        • 2.Sd4#
      • 1...Sde1
        • 2.Sd4#
      • 1...Sb2
        • 2.Sd4#
      • 1...Sf2
        • 2.Sd4#
      • 1...Sdb4
        • 2.Sd4#
      • 1...Sf4
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • P(h);N_GUARD,N_SPINQ(d),SBLOCK::R1(I)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(C)
      • Vars
        • S(b);P_PINS(C),P_SPINS(a)::S(E),XP(c)
      • Refutation
        • S(b);N_SPINQ(d),P_PINS(C),P_SPINS(a)
  • Actual
    • S(E);
    • Threat
      • S(C)
    • Vars
      • S(b);N_SPINQ(d),P_PINS(C),P_SPINS(a),SBLOCK::S(E)
      • S(b);P_PINS(C),P_SPINS(a)::S(E)
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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).