MESON Chess Problem Database

Problem Display
PID: 91599 (2K5/5pp1/5nrb/4RPk1/4p1Pp/4P2q/5NN1/2B3R1 w - - 0 1)

Stocchi, Ottavio

Probleemblad 081. TT, 1950

2K5/5pp1/5nrb/4RPk1/4p1Pp/4P2q/5NN1/2B3R1

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe3
      • 2.Bxe3#
  • Keys
    • 1.Sf4!
      • threat
        • 2.S2xh3#
        • 2.S4xh3#
        • 2.fxg6#
      • 1...Qxg4
        • 2.S2h3#
      • 1...Qxe3
        • 2.S4h3#
      • 1...Sxg4
        • 2.Sxe4#
      • 1...Sd5
        • 2.Sxe4#
      • 1...Sh5
        • 2.Sxe4#
      • 1...Sd7
        • 2.Sxe4#
      • 1...Sh7
        • 2.Sxe4#
      • 1...Se8
        • 2.Sxe4#
      • 1...Sg8
        • 2.Sxe4#
      • 1...Qf1
        • 2.fxg6#
      • 1...Qg2
        • 2.fxg6#
      • 1...Qh1
        • 2.fxg6#
      • 1...Qh2
        • 2.fxg6#
      • 1...Qf3
        • 2.fxg6#
      • 1...Qg3
        • 2.fxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
    • Q(a);OGATE,P_SPINQ(a),XP(E)::B(A),XQ(a)
  • Actual
    • S(D);
    • Threat
      • DUALS(3)
    • Vars
      • Q(a);P_PINP(H),P_SPINQ(a),XP(F)::S(C)
      • Q(a);XP(E)::S(D)
      • S(e);N_GUARD,P_SPINS(e),XP(F)::S(C),XP(b)
      • S(e);N_GUARD::S(C),XP(b)
      • Q(a);::R(G)+P(H),XR(f)
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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).