MESON Chess Problem Database

Problem Display
PID: 265043 (5BB1/ppK5/rPR2P2/p3Q3/kP6/b1p5/1r6/1R6 w - - 0 1)

Bottacchi, Antonio

3rd HM., L'Italia Scacchistica, 1931

5BB1/ppK5/rPR2P2/p3Q3/kP6/b1p5/1r6/1R6

#2

9 + 8

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Bb3#
    • 1...Rc2
      • 2.Bb3#
    • 1...Rd2
      • 2.Bb3#
    • 1...Re2
      • 2.Bb3#
    • 1...Rf2
      • 2.Bb3#
    • 1...Rg2
      • 2.Bb3#
    • 1...Rh2
      • 2.Bb3#
    • 1...Rb3
      • 2.Bxb3#
    • 1...Rxb6
      • 2.Qxa5#
  • Keys
    • 1.Qe8!
      • threat
        • 2.Rxc3#
      • 1...Kb5
        • 2.Rxc3#
        • 2.Rc4#
      • 1...Rxb4
        • 2.Rc4#
      • 1...Rxb6
        • 2.Rxb6#
      • 1...axb4
        • 2.Rc5#
      • 1...axb6
        • 2.Rxb6#
      • 1...bxc6
        • 2.Qxc6#
      • 1...Rd2
        • 2.Rd6#
      • 1...Re2
        • 2.Re6#
      • 1...c2
        • 2.Rxc2#
        • 2.Rc3#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(a);N_GUARD::B(I)
    • R(a);N_GUARD::B(I),XR(a)
    • R(f);N_GUARD,XP(D)::QAR1(C),XP(e)
  • Actual
    • Q(C);
    • Threat
      • QAB(C)+R(E),XP(c)
    • Vars
      • R(a);XP(B)::QAB(C)+R(E)
      • R(f);OGATE,XP(D)::QAB(C)+R(E),XR(f)
      • P(e);SBLOCK,XP(B)::QAB(C)+R(E)
      • P(g);OGATE,XP(D)::QAB(C)+R(E),XP(g)
      • P(h);OGATE,P_SPINP(h),XR(E)::QAB(C),XP(h)
      • R(a);::QAB(C)+R(E)
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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).