MESON Chess Problem Database

Problem Display
PID: 264922 (b4BB1/3R2K1/r5p1/Rn1nkp2/5p2/pN1P1p2/2N1pq2/8 w - - 0 1)

Bottacchi, Antonio

Rivista Scacchistica Italiana, 1919

b4BB1/3R2K1/r5p1/Rn1nkp2/5p2/pN1P1p2/2N1pq2/8

#2

8 + 12

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Rxd5#
    • 1...Sd6
      • 2.Re7#
    • 1...Sb6
      • 2.Bd6#
  • Tries
    • 1.Bd6+?
      • 1...Sxd6
        • 2.Re7#
      • 1...Rxd6!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sc4#
      • 1...Qd4
        • 2.Sxf3#
      • 1...Qc5
        • 2.Sxf3#
      • 1...Rc6
        • 2.Rxd5#
      • 1...Sd6
        • 2.Re7#
      • 1...Se3
        • 2.d4#
      • 1...Sb6
        • 2.Bd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(j);S_CUTB(l)::R1(E),XS(g)
    • S(f);P_SPINS(g),SBLOCK,S_CUTR(j)::R(E)
    • S(g);P_SPINS(f),S_CUTR(j)::B(G)
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • S(f);P_SPINS(g),SBLOCK,XB(G)::R(E)
      • Refutation
        • R(j);XB(G)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • Q(b);N_GUARD::S(B),XP(d)
      • R(j);S_CUTB(l)::R1(E),XS(g)
      • S(f);P_SPINS(g),SBLOCK,S_CUTR(j)::R(E)
      • S(g);P_SPINS(f),S_CUTQ(b)::P(C)
      • S(g);P_SPINS(f),S_CUTR(j)::B(G)
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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).