MESON Chess Problem Database

Problem Display
PID: 194882 (6Qr/5R1p/B3N2K/5p1p/R1N1kn2/2P2p1n/1Pp2PpB/2b5 w - - 0 1)

Bottacchi, Antonio

2nd HM., L'Italia Scacchistica, 1918

6Qr/5R1p/B3N2K/5p1p/R1N1kn2/2P2p1n/1Pp2PpB/2b5

#2

11 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5+
      • 2.Sd2#
    • 1...Sg6+
      • 2.Se3#
  • Tries
    • 1.Rd7?
      • threat
        • 2.Sc5#
        • 2.Rd4#
      • 1...Se2+
        • 2.Sd2#
      • 1...Sd3+
        • 2.Sd2#
      • 1...Sd5+
        • 2.Sd2#
      • 1...Sxe6+
        • 2.Sd2#
      • 1...Sg6+
        • 2.Sd2#
        • 2.Se3#
      • 1...Be3!
  • Keys
    • 1.Re7!
      • threat
        • 2.Sxf4#
        • 2.Sc5#
      • 1...Se2+
        • 2.Sf4#
      • 1...Sd3+
        • 2.Sg5#
      • 1...Sd5+
        • 2.Sd2#
      • 1...Sxe6+
        • 2.Se3#
      • 1...Sg6+
        • 2.Se3#
      • 1...Kd3
        • 2.Sc5#
      • 1...Kd5
        • 2.Bb7#
      • 1...Rxg8
        • 2.Sxf4#
      • 1...Sg5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(g);CHECK,SBLOCK::R(E)+S(F),DCHECK
    • S(g);CHECK::R(E)+S(F)
  • Tries
    • Try
      • R(J);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);CHECK::R(E)+S(F),DCHECK
        • S(g);CHECK,XS(H)::R(E)+S(F),DCHECK
      • Refutation
        • B(a);
  • Actual
    • R(J);
    • Threat
      • DUALS(2)
    • Vars
      • S(g);CHECK::R(J)+S(H)
      • S(g);CHECK,SBLOCK::R(J)+S(H),DCHECK
      • S(g);CHECK,SBLOCK::R(E)+S(F),DCHECK
      • S(g);CHECK,P_SPINS(g),XS(H)::R(E)+S(F)
      • S(g);CHECK::R(E)+S(F)
      • K(f);S_FLIGHT::S(H)
      • K(f);S_FLIGHT::B(G)
      • R(k);XQ(K)::R(J)+S(H),XS(g)
      • S(e);::R(J)+S(H),DCHECK
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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).