MESON Chess Problem Database

Problem Display
PID: 180057 (KBB4b/p7/3R4/3Nk1pn/4r1P1/3bq3/4R3/7Q w - - 0 1)

Scotti, Louis

Bulletin Ouvrier des Echecs, 1952

KBB4b/p7/3R4/3Nk1pn/4r1P1/3bq3/4R3/7Q

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Rd8#
    • 1...Qf4
      • 2.Qa1#
    • 1...Qf3
      • 2.Qa1#
    • 1...Qg3
      • 2.Qa1#
    • 1...Qh3
      • 2.Qa1#
    • 1...Rd4
      • 2.Ra6#
      • 2.Rb6#
      • 2.Rc6#
      • 2.Re6#
      • 2.Rf6#
      • 2.Rg6#
      • 2.Rh6#
      • 2.Rd8#
    • 1...Sg3
      • 2.Qxh8#
    • 1...Sf4
      • 2.Qxh8#
  • Tries
    • 1.Qa1+?
      • 1...Qd4
        • 2.Rd8#
      • 1...Rd4!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sg6#
      • 1...Kxf4
        • 2.Rf6#
      • 1...Qxf4
        • 2.Qa1#
      • 1...Rxf4
        • 2.Qd5#
      • 1...Sxf4
        • 2.Qxh8#
      • 1...gxf4
        • 2.Qxh5#
      • 1...Ra4
        • 2.Sxd3#
      • 1...Rb4
        • 2.Sxd3#
      • 1...Rc4
        • 2.Sxd3#
      • 1...Rd4
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 5
  • Sets
    • Q(b);P_SPINR(c),SBLOCK::B(G)+R(E)
    • Q(b);N_GUARD,P_SPINR(c)::QAB(A)
    • S(f);OGATE::QAB(A),XB(h)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • Q(b);P_SPINQ(b),P_SPINR(c)::B(G)+R(E)
      • Refutation
        • R(c);P_SPINQ(b),P_SPINR(c)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(d);S_FLIGHT,XS(D)::B(G)+R(E),DCHECK
      • Q(b);N_GUARD,P_SPINR(c),SBLOCK,XS(D)::QAB(A)
      • R(c);OGATE,P_SPINQ(b),SBLOCK,XS(D)::QAR1(A)
      • S(f);OGATE,SBLOCK,XS(D)::QAB(A),XB(h)
      • P(e);OGATEB,SBLOCK,XS(D)::QAR(A),XS(f)
      • R(c);P_SPINQ(b)::S(D),XB(a)
      • R(c);P_SPINQ(b),SBLOCK::B(G)+R(E),DCHECK
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).