MESON Chess Problem Database

Problem Display
PID: 265281 (K2k1b2/2R1Rn2/N1p3Q1/2pqp2b/1N6/8/8/8 w - - 0 1)

Bottacchi, Antonio

L'Italia Scacchistica, 1950

K2k1b2/2R1Rn2/N1p3Q1/2pqp2b/1N6/8/8/8

#2

6 + 8

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Sxc6#
    • 1...Qb3
      • 2.Sxc6#
    • 1...Qc4
      • 2.Sxc6#
    • 1...Qd1
      • 2.Sxc6#
    • 1...Qd2
      • 2.Sxc6#
    • 1...Qd3
      • 2.Sxc6#
    • 1...Qd4
      • 2.Sxc6#
    • 1...Sg5
      • 2.Re8#
    • 1...Sd6
      • 2.Red7#
    • 1...Sh6
      • 2.Re8#
    • 1...Sh8
      • 2.Re8#
  • Tries
    • 1.Qe6?
      • threat
        • 2.Rc8#
        • 2.Re8#
        • 2.Qc8#
      • 1...Bxe7
        • 2.Rc8#
        • 2.Qc8#
        • 2.Qxe7#
      • 1...Qd7
        • 2.Rexd7#
        • 2.Qxd7#
      • 1...Bg4
        • 2.Rc8#
        • 2.Re8#
      • 1...Sg5
        • 2.Rc8#
        • 2.Qc8#
      • 1...Sd6
        • 2.Red7#
        • 2.Qd7#
      • 1...Sh6
        • 2.Rc8#
        • 2.Qc8#
      • 1...Sh8
        • 2.Rc8#
        • 2.Qc8#
      • 1...Qxe6!
  • Keys
    • 1.Qxc6!
      • threat
        • 2.Re8#
      • 1...Qxc6+
        • 2.Sxc6#
      • 1...Bxe7
        • 2.Rc8#
      • 1...Qd7
        • 2.Rcxd7#
        • 2.Qxd7#
      • 1...Qe6
        • 2.Qe8#
      • 1...Sg5
        • 2.Qxd5#
      • 1...Sd6
        • 2.Rcd7#
      • 1...Sh6
        • 2.Qxd5#
      • 1...Sh8
        • 2.Qxd5#

There are these versions: 265911

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(b);N_GUARD,P_PINS(B)::S(A),XP(e)
    • Q(b);N_GUARD::S(A),XP(e)
    • S(f);::R1(E)
    • S(f);S_CUTQ(b)::R1(E)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Refutation
        • Q(b);XQ(C)
  • Actual
    • Q(C);P_SPINQ(C),XP(e)
    • Threat
      • R1(E)
    • Vars
      • Q(b);CHECK,XQ(C)::S(A),XQ(b)
      • B(h);SBLOCK,XR(E)::R1(D)
      • Q(b);N_PINQ(C)::QAR1(C)
      • S(f);N_GUARD::QAR(C),XQ(b)
      • S(f);S_CUTQ(b)::R1(D)
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).