MESON Chess Problem Database

Problem Display
PID: 269772 (6B1/4N1p1/2pP1P2/2p1k1B1/8/6K1/5Nn1/3R4 w - - 0 1)

de Simoni, Alessandro

Scacco!, 1980

6B1/4N1p1/2pP1P2/2p1k1B1/8/6K1/5Nn1/3R4

#2

8 + 5

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Kg4?
      • threat
        • 2.Sxc6#
        • 2.Sg6#
      • 1...Sf4
        • 2.Sxc6#
      • 1...Sh4
        • 2.Sxc6#
      • 1...g6
        • 2.Sxc6#
        • 2.Sxg6#
      • 1...Se3+!
    • 1.Bc1?
      • threat
        • 2.Bb2#
      • 1...Kxf6
        • 2.Sg4#
      • 1...c4!
    • 1.Bf4+?
      • 1...Kxf6
        • 2.Se4#
        • 2.Sg4#
      • 1...Sxf4!
  • Keys
    • 1.Bd2!
      • threat
        • 2.Bc3#
      • 1...Kd4
        • 2.Sxc6#
      • 1...Kxd6
        • 2.Bf4#
      • 1...Kxf6
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::S(G),XP(d)
      • Refutation
        • S(a);CHECK
    • Try
      • B(D);
      • Threat
        • B(D)
      • Vars
        • K(c);N_GUARD,S_FLIGHT,XP(F)::S(B)
      • Refutation
        • P(b);
    • Try
      • B(D);CHECK
      • Refutation
        • S(a);XB(D)
  • Actual
    • B(D);
    • Threat
      • B(D)
    • Vars
      • K(c);N_GUARD,S_FLIGHT::S(G),XP(d)
      • K(c);N_GUARD,S_FLIGHT,XP(E)::R(A)+B(D),DCHECK
      • K(c);N_GUARD,S_FLIGHT,XP(F)::S(B)
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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).