Problem Display
PID: 247604 (1k6/1P1p3P/K2P1N2/pp2bq2/6n1/2R3Q1/2r4r/4R3 w - - 0 1)

Bapat, SL

British Chess Magazine, 1932

1k6/1P1p3P/K2P1N2/pp2bq2/6n1/2R3Q1/2r4r/4R3

#2

8 + 9


SOLUTION


  • SOUND
  • Sets
    • 1...Qd3
      • 2.Sxd7#
    • 1...Qe4
      • 2.Sxd7#
    • 1...Qg6
      • 2.Sxd7#
    • 1...Qf1
      • 2.Sxd7#
    • 1...Qf2
      • 2.Sxd7#
    • 1...Qf3
      • 2.Sxd7#
    • 1...Qf4
      • 2.Sxd7#
    • 1...Qg5
      • 2.Sxd7#
    • 1...Qh5
      • 2.Sxd7#
    • 1...Ra2
      • 2.Rc8#
    • 1...Rb2
      • 2.Rc8#
    • 1...Rcd2
      • 2.Rc8#
    • 1...Rce2
      • 2.Rc8#
    • 1...Rcf2
      • 2.Rc8#
    • 1...Rcg2
      • 2.Rc8#
    • 1...Rhd2
      • 2.h8Q#
      • 2.h8R#
    • 1...Rhe2
      • 2.h8Q#
      • 2.h8R#
    • 1...Rhf2
      • 2.h8Q#
      • 2.h8R#
    • 1...Rhg2
      • 2.h8Q#
      • 2.h8R#
    • 1...Bxc3
      • 2.Re8#
    • 1...Bxg3
      • 2.Re8#
    • 1...Bd4
      • 2.Re8#
    • 1...Bf4
      • 2.Re8#
    • 1...Bxd6
      • 2.Re8#
      • 2.Qxd6#
    • 1...Sf2
      • 2.Qg8#
    • 1...Se3
      • 2.Qg8#
  • Tries
    • 1.Rxc2?
      • threat
        • 2.Rc8#
      • 1...Qxc2
        • 2.Sxd7#
      • 1...Bc3
        • 2.Re8#
      • 1...Rxc2!
    • 1.Qe3?
      • threat
        • 2.Qa7#
      • 1...Qf2
        • 2.Sxd7#
      • 1...Bd4
        • 2.Qe8#
      • 1...Sxe3!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qa7#
      • 1...Qf2
        • 2.Sxd7#
      • 1...Rcf2
        • 2.Rc8#
      • 1...Rhf2
        • 2.h8Q#
        • 2.h8R#
      • 1...Bd4
        • 2.Re8#
      • 1...Sf2
        • 2.Qg8#
      • 1...Se3
        • 2.Qg8#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 16
  • Sets
    • Q(g);N_GUARD::S(F),XP(h)
    • R(a);N_GUARD::R1(B)
    • R(b);N_GUARD::P=Q
    • B(f);OGATE,XR(B)::R(A)
    • B(f);OGATE,XQ(C)::R(A)
    • B(f);OGATE::R(A)
    • S(c);OGATE::QAR(C)
  • Tries
    • Try
      • R(B);XR(a)
      • Threat
        • R1(B)
      • Vars
        • Q(g);N_GUARD,XR(B)::S(F),XP(h)
        • B(f);OGATE::R(A)
      • Refutation
        • R(b);XR(B)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • Q(g);N_GUARD::S(F),XP(h)
        • B(f);OGATE::QAR(C)
      • Refutation
        • S(c);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • Q(g);N_GUARD::S(F),XP(h)
      • R(a);N_GUARD::R1(B)
      • R(b);N_GUARD::P=Q
      • B(f);OGATE::R(A)
      • S(c);OGATE::QAR(C)


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).