MESON Chess Problem Database

Problem Display
PID: 265356 (8/3pN3/1K4B1/4P1Q1/b2krb1R/N2P3R/3PPn2/8 w - - 0 1)

Castellari, Umberto

Il Problema, 1932

8/3pN3/1K4B1/4P1Q1/b2krb1R/N2P3R/3PPn2/8

#2

11 + 6

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Sb5#
    • 1...Bc2
      • 2.Sxc2#
      • 2.Sb5#
    • 1...Bb3
      • 2.Sb5#
    • 1...Bb5
      • 2.Sc2#
      • 2.Sxb5#
    • 1...Bc6
      • 2.Sc2#
    • 1...Bxe5
      • 2.Qe3#
    • 1...Sxd3
      • 2.Rxd3#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qd6#
      • 1...Rxe5
        • 2.e3#
      • 1...Bxd2
        • 2.e6#
      • 1...Bxe5
        • 2.Qxf2#
      • 1...d6
        • 2.Qxd6#
      • 1...Bb3
        • 2.Sb5#
      • 1...Bc6
        • 2.Sc2#
      • 1...d5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(b);N_GUARD::S(C)
    • B(e);OGATE,P_SPINR(d),SBLOCK,XP(G)::QAB1(H)
    • S(a);OGATE,XP(D)::R1(E),XS(a)
  • Actual
    • Q(H);
    • Threat
      • QAR2(H)
    • Vars
      • R(d);N_GUARD,P_SPINB(e),P_SPINR(d),XP(G)::P(B)
      • B(e);N_GUARD,P_SPINR(d),XP(A)::QAB(H)+P(G)
      • B(e);OGATE,P_SPINB(e),P_SPINR(d),SBLOCK,XP(G)::QAB(H),XS(a)
      • P(f);::QAR2(H),XP(f)
      • B(b);N_GUARD::S(C)
      • P(f);SBLOCK::S(K)
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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).