MESON Chess Problem Database

Problem Display
PID: 136252 (1K1R1R2/Pp2B3/r7/2N1kPNb/1qn1pnr1/2PpP1Qp/B3p1pb/8 w - - 0 1)

Bonivento, Oscar

L'Italia Scacchistica, 2002

1K1R1R2/Pp2B3/r7/2N1kPNb/1qn1pnr1/2PpP1Qp/B3p1pb/8

#2

12 + 14

6490 yacpdb 2010
5454 Near Snap 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg5
      • 2.exf4#
    • 1...Sb2
      • 2.Sd7#
      • 2.Rd5#
    • 1...Sd2
      • 2.Sd7#
      • 2.Rd5#
    • 1...Sa3
      • 2.Sd7#
      • 2.Rd5#
    • 1...Sxe3
      • 2.Sd7#
    • 1...Sa5
      • 2.Sd7#
      • 2.Rd5#
    • 1...Sb6
      • 2.Bd6#
    • 1...Sd6
      • 2.Sd7#
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qxe4#
      • 1...Sxe3
        • 2.Sd7#
      • 1...exf3
        • 2.Sxf3#
      • 1...Sb2
        • 2.Sd7#
      • 1...Sd2
        • 2.Sd7#
      • 1...Sa3
        • 2.Sd7#
      • 1...Sa5
        • 2.Sd7#
      • 1...Sb6
        • 2.Bd6#
      • 1...Sd6
        • 2.Sd7#
      • 1...Sd5
        • 2.Sd7#
      • 1...Se6
        • 2.Bf6#
      • 1...Sg6
        • 2.Sf7#

Anticipated by 102603(1948)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • R(j);N_GUARD,XS(G)::P(C),XS(i)
    • S(g);XP(C)::S(E)
    • S(g);N_GUARD,S_CUTR(m)::B(I)
    • S(g);::S(E)
  • Actual
    • Q(D);N_PINS(i)
    • Threat
      • QAR1(D),XP(h)
    • Vars
      • S(g);XP(C)::S(E)
      • P(h);XQ(D)::S(G),XP(h)
      • S(g);::S(E)
      • S(g);N_GUARD,S_CUTR(m)::B(I)
      • S(i);SBLOCK::S(E)
      • S(i);S_CUTR(m)::B(I)
      • S(i);S_CUTB(l)::S(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).