MESON Chess Problem Database

Problem Display
PID: 161638 (1Q2K2n/1N6/pn6/1k2N1R1/bp2p3/1p2r1P1/1B2r3/5B2 w - - 0 1)

Packa, Ladislav

Die Schwalbe, 1989

1Q2K2n/1N6/pn6/1k2N1R1/bp2p3/1p2r1P1/1B2r3/5B2

#2

8 + 10

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Sd6+?
      • 1...Ka5+
        • 2.Sc6#
      • 1...Kc5+!
  • Keys
    • 1.Sa5!
      • threat
        • 2.Sd3#
        • 2.Sf3#
        • 2.Sec4#
        • 2.Sg4#
        • 2.Sec6#
        • 2.Sg6#
        • 2.Sd7#
        • 2.Sf7#
      • 1...Kxa5+
        • 2.Sc6#
      • 1...Kc5+
        • 2.Sd7#
      • 1...Rxg3
        • 2.Sg4#
      • 1...Rc3
        • 2.Sec4#
      • 1...Rd3
        • 2.Sxd3#
      • 1...Rf3
        • 2.Sxf3#
      • 1...Sg6
        • 2.Sxg6#
      • 1...Sf7
        • 2.Sxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK,P_PINS(i)
      • Vars
        • K(g);CHECK,N_SPINR(a),N_SPINS(i),P-FLIGHT::R(E)+S(D),DCHECK
      • Refutation
        • K(g);CHECK,N_SPINR(a),N_SPINS(i),P-FLIGHT
  • Actual
    • S(F);P_PINS(i)
    • Threat
      • DUALS(8)
    • Vars
      • K(g);CHECK,N_SPINR(a),N_SPINS(i),P-FLIGHT,XS(F)::R(E)+S(D),DCHECK
      • K(g);CHECK,N_SPINR(a),N_SPINS(i),P-FLIGHT::R(E)+S(D),DCHECK
      • R(c);XP(C)::R(E)+S(D)
      • R(c);::R(E)+S(D)
      • R(c);N_SPINR(a)::R(E)+S(D),XR(c)
      • R(c);::R(E)+S(D),XR(c)
      • S(j);::R(E)+S(D),XS(j)
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).