MESON Chess Problem Database

Problem Display
PID: 273929 (2Br4/3pp1Pq/2R4p/R1N1Pk1P/5p1K/1P3P2/4n3/Q4b2 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2023

2Br4/3pp1Pq/2R4p/R1N1Pk1P/5p1K/1P3P2/4n3/Q4b2

#2

11 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Bxd7+?
      • 1...e6
        • 2.Bxe6#
      • 1...Rxd7!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qb1#
      • 1...dxc6
        • 2.Sd4#
      • 1...dxe6
        • 2.Bxe6#
      • 1...Sc1
        • 2.Sd4#
      • 1...Sg1
        • 2.Sd4#
      • 1...Sc3
        • 2.Sd4#
      • 1...Sg3
        • 2.Sd4#
      • 1...Sd4
        • 2.Sxd4#
      • 1...d5
        • 2.exd5 ep#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(K);CHECK,XP(f)
      • Vars
        • P(g);P_SPINP(g)::B(K),XP(g)
      • Refutation
        • R(i);XB(K)
  • Actual
    • S(F);N_PINP(f)
    • Threat
      • QAB(A)
    • Vars
      • P(f);XR(I)::B(K)+S(F),DCHECK
      • P(f);OGATE,P_SPINP(f),XS(F)::B(K),XP(f)
      • S(b);N_GUARD::S(F)
      • S(b);N_GUARD::S(F),XS(b)
      • P(f);OGATE::R(E)+P(G),XP(f),EP
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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).