MESON Chess Problem Database

Problem Display
PID: 268496 (4Q3/pb1p2PB/3p4/3p2B1/3k4/1KpNN3/2P2rp1/5Rq1 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 1975

4Q3/pb1p2PB/3p4/3p2B1/3k4/1KpNN3/2P2rp1/5Rq1

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc2
      • 2.Sxc2#
      • 2.Bf6#
      • 2.Rf4#
    • 1...Rd2
      • 2.Sf5#
      • 2.Bf6#
      • 2.Rf4#
    • 1...Re2
      • 2.Sf5#
      • 2.Bf6#
      • 2.Rf4#
    • 1...Rf4
      • 2.Rxf4#
    • 1...Rf5
      • 2.Sxf5#
    • 1...Rf6
      • 2.Bxf6#
  • Tries
    • 1.Bf5?
      • threat
        • 2.Bf6#
      • 1...Rxf5
        • 2.Sxf5#
      • 1...Qh2!
    • 1.Qxd7?
      • threat
        • 2.Qa4#
      • 1...Ba6
        • 2.Qxa7#
      • 1...Bc6
        • 2.Qxa7#
      • 1...Rf4!
    • 1.Qb8?
      • threat
        • 2.Qxa7#
      • 1...a5
        • 2.Qa7#
      • 1...a6
        • 2.Qa7#
      • 1...Rf5!
  • Keys
    • 1.Bf4!
      • threat
        • 2.Sf5#
      • 1...Rxc2
        • 2.Sxc2#
      • 1...Rxf4
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(b);OGATE::R(A),XR(b)
    • R(b);N_GUARD::S(E),XR(b)
    • R(b);N_GUARD::B(F),XR(b)
  • Tries
    • Try
      • B(H);
      • Threat
        • B(F)
      • Vars
        • R(b);XB(H)::S(E),XR(b)
      • Refutation
        • Q(a);
    • Try
      • Q(I);XP(j)
      • Threat
        • QAR(I)
      • Vars
        • B(i);OGATE::QAB(I),XP(h)
      • Refutation
        • R(b);
    • Try
      • Q(I);
      • Threat
        • QAB(I),XP(h)
      • Vars
        • P(h);::QAB(I)
      • Refutation
        • R(b);
  • Actual
    • B(F);
    • Threat
      • S(E)
    • Vars
      • R(b);XP(B)::S(E),XR(b)
      • R(b);OGATE,XB(F)::R(A),XR(b)
HTML5 logo

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).