MESON Chess Problem Database

Problem Display
PID: 56438 (KN3bq1/n2R4/B3p3/P1k3r1/3N1p2/Pp5Q/n7/1r6 w - - 0 1)

Brogi, Giuseppe

Sinfonie Scacchistiche, 1976

KN3bq1/n2R4/B3p3/P1k3r1/3N1p2/Pp5Q/n7/1r6

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qh7
      • 2.Sxe6#
    • 1...Qg7
      • 2.Sxe6#
    • 1...Qh8
      • 2.Sxe6#
    • 1...Ra1
      • 2.Sxb3#
    • 1...Rc1
      • 2.Sxb3#
    • 1...Rd1
      • 2.Sxb3#
    • 1...Re1
      • 2.Sxb3#
    • 1...Rf1
      • 2.Sxb3#
    • 1...Rbg1
      • 2.Sxb3#
    • 1...Rh1
      • 2.Sxb3#
    • 1...Sc1
      • 2.Qc3#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Sb4
      • 2.Qc3#
    • 1...b2
      • 2.Sb3#
  • Tries
    • 1.Qf1?
      • threat
        • 2.Qc4#
      • 1...Rxf1
        • 2.Sxb3#
      • 1...Rc1
        • 2.Sxb3#
      • 1...Sb5
        • 2.Qxb5#
      • 1...e5!
    • 1.Qd3?
      • threat
        • 2.Qc4#
      • 1...Rc1
        • 2.Sxb3#
      • 1...Sb5
        • 2.Qxb5#
      • 1...e5!
  • Keys
    • 1.Qxe6!
      • threat
        • 2.Qb6#
      • 1...Qxe6
        • 2.Sxe6#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Qg6
        • 2.Qc4#
      • 1...Rg6
        • 2.Rd5#
      • 1...Sb5
        • 2.Qc6#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sc8
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 14
  • Sets
    • Q(j);N_GUARD::S(C),XP(g)
    • R(a);N_GUARD::S(C),XP(c)
    • S(b);N_GUARD::QAR2(B)
    • S(b);N_GUARD::QAR2(B),XS(b)
    • P(c);S_CUTR(a)::S(C)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • R(a);N_GUARD,XQ(B)::S(C),XP(c)
        • R(a);N_GUARD::S(C),XP(c)
        • S(h);N_GUARD::QAR1(B),XS(h)
      • Refutation
        • P(g);
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • R(a);N_GUARD::S(C),XP(c)
        • S(h);N_GUARD::QAR1(B),XS(h)
      • Refutation
        • P(g);
  • Actual
    • Q(B);XP(g)
    • Threat
      • QAB1(B)
    • Vars
      • Q(j);XQ(B)::S(C),XQ(j)
      • B(i);N_GUARD,P_PINS(H)::QAB1(B),XB(i)
      • Q(j);N_GUARD::QAR1(B)
      • R(f);N_GUARD::R1(F)
      • S(h);N_GUARD::QAR1(B)
      • S(h);N_GUARD::QAR1(B),XS(h)
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).