MESON Chess Problem Database

Problem Display
PID: 277217 (8/4N3/R3pp2/2nbkN1K/3pr1R1/1BP1bPP1/4Q2B/2q5 w - - 0 1)

Piatesi, Antonio

Probleemblad, 1954

8/4N3/R3pp2/2nbkN1K/3pr1R1/1BP1bPP1/4Q2B/2q5

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.gxf4#
    • 1...Bd2
      • 2.cxd4#
    • 1...Bf4
      • 2.cxd4#
    • 1...Bg5
      • 2.cxd4#
    • 1...Bh6
      • 2.cxd4#
    • 1...exf5
      • 2.Sg6#
  • Tries
    • 1.f4+?
      • 1...Bxf4
        • 2.cxd4#
      • 1...Rxf4!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qb8#
      • 1...Sxa6
        • 2.Rxe4#
      • 1...Bb7
        • 2.Rxe6#
      • 1...Sb7
        • 2.Rxe4#
      • 1...Sd7
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(d);OGATE,P_SPINB(b)::P(F),XR(d)
    • B(b);N_GUARD,P_SPINR(d)::P(D),XP(c)
    • P(h);SBLOCK,XS(H)::S(K)
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • B(b);P_SPINR(d),XP(E)::P(D),XP(c)
      • Refutation
        • R(d);P_SPINB(b),XP(E)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • S(e);N_GUARD,P_SPINB(f),XR(J)::R1(G),XR(d)
      • B(f);N_GUARD,P_SPINS(e)::R1(J),XP(h)
      • S(e);N_GUARD,P_SPINB(f)::R1(G),XR(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).