MESON Chess Problem Database

Problem Display
PID: 71645 (4B3/q1b5/3r1n2/2rRN3/4k1p1/2n1p1P1/1N3QK1/4R3 w - - 0 1)

Chicco, Adriano

1st HM., Tijdschrift vd KNSB 12. TT, 1939

4B3/q1b5/3r1n2/2rRN3/4k1p1/2n1p1P1/1N3QK1/4R3

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rcxd5
      • 2.Qf4#
    • 1...Rdxd5
      • 2.Qf4#
  • Tries
    • 1.Qf5+?
      • 1...Kxd5
        • 2.Sf3#
        • 2.Sc6#
      • 1...Kxf5!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qf5#
      • 1...Kxd5
        • 2.Qf5#
      • 1...Rcxd5
        • 2.Qf4#
      • 1...Rdxd5
        • 2.Rxe3#
      • 1...Scxd5
        • 2.Bg6#
      • 1...Sfxd5
        • 2.Qc2#
      • 1...e2
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(e);SBLOCK,XR(F)::QAR1(C)
    • R(f);SBLOCK,XR(F)::QAR1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT,XQ(C)
  • Actual
    • S(G);
    • Threat
      • QAB1(C)
    • Vars
      • K(c);N_SPINP(b),S_FLIGHT,XR(F)::QAR2(C)
      • R(e);SBLOCK,XR(F)::QAR1(C)
      • R(f);SBLOCK,XR(F)::R1(A),XP(b)
      • S(a);SBLOCK,XR(F)::B(H)
      • S(g);SBLOCK,XR(F)::QAB(C)
      • P(b);OGATE::QAR1(C)
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).