MESON Chess Problem Database

Problem Display
PID: 199879 (4K1n1/8/4BBpb/5p1k/3Q2Nr/7P/4N2R/5n2 w - - 0 1)

Caplin, Aleksandr Borisovich

Sachova skladba, 1988

4K1n1/8/4BBpb/5p1k/3Q2Nr/7P/4N2R/5n2

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh3
      • 2.Rxh3#
    • 1...Rxg4
      • 2.hxg4#
    • 1...Bf4
      • 2.Sxf4#
    • 1...Bg7
      • 2.Sf4#
    • 1...Bf8
      • 2.Sf4#
    • 1...Sd2
      • 2.Sg3#
    • 1...Sxh2
      • 2.Sg3#
    • 1...Se3
      • 2.Sg3#
    • 1...Sg3
      • 2.Sxg3#
    • 1...fxg4
      • 2.hxg4#
    • 1...g5
      • 2.Bf7#
  • Keys
    • 1.Qf4!
      • 1...Sxf6+
        • 2.Sxf6#
      • 1...Rxh3
        • 2.Rxh3#
      • 1...Rxg4
        • 2.hxg4#
      • 1...Bxf4
        • 2.Sxf4#
      • 1...Sxh2
        • 2.Sg3#
      • 1...fxg4
        • 2.hxg4#
      • 1...g5
        • 2.Bf7#
      • 1...Bg5
        • 2.Qxg5#
      • 1...Bg7
        • 2.Qg5#
      • 1...Bf8
        • 2.Qg5#
      • 1...Sd2
        • 2.Sg3#
      • 1...Se3
        • 2.Sg3#
      • 1...Sg3
        • 2.Sxg3#
      • 1...Se7
        • 2.Qxh6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATE,P_SPINR(b),XP(C)::R(B),XR(b)
    • R(b);OGATE,XS(E)::R(B)+P(C)DCHECK,XR(b)
    • B(f);N_GUARD::S(A),XB(f)
    • B(f);N_GUARD::S(A)
    • S(a);N_GUARD::S(A)
    • S(a);N_GUARD,XR(B)::S(A)
    • S(a);N_GUARD::S(A),XS(a)
    • P(c);OGATE,XS(E)::P(C),XP(c)
    • P(e);OGATEB::B(F)
  • Actual
    • Q(D);
    • Vars
      • S(g);CHECK,XB(G)::S(E),XS(g)
      • R(b);OGATE,P_SPINR(b),XP(C)::R(B),XR(b)
      • R(b);OGATE,XS(E)::R(B)+P(C)DCHECK,XR(b)
      • B(f);XQ(D)::S(A),XB(f)
      • S(a);N_GUARD,XR(B)::S(A)
      • P(c);OGATE,XS(E)::P(C),XP(c)
      • P(e);OGATEB::B(F)
      • B(f);N_GUARD::QAR1(D),XB(f)
      • B(f);N_GUARD::QAR1(D)
      • S(a);N_GUARD::S(A)
      • S(a);N_GUARD::S(A),XS(a)
      • S(g);N_GUARD::QAR1(D),XB(f)
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).