Problem Display
PID: 6244 (6Nk/P2p1KR1/3QPpp1/2n2rp1/4b2B/6b1/5p2/7R w - - 0 1)

Kipping, Cyril Stanley

HM., Chess Amateur (The) (Valve Ty.), 1928

6Nk/P2p1KR1/3QPpp1/2n2rp1/4b2B/6b1/5p2/7R

#2

8 + 10


785 Het Belgisch Schaakbord (L'Echiquier Belge) 1956

SOLUTION


  • SOUND
  • Sets
    • 1...Rf3
      • 2.Bxg3#
    • 1...Bb1
      • 2.Bxg3#
    • 1...Bc2
      • 2.Bxg3#
    • 1...Bd3
      • 2.Bxg3#
  • Tries
    • 1.Sxf6?
      • threat
        • 2.Rh7#
        • 2.Rg8#
        • 2.Qf8#
      • 1...Bxd6
        • 2.Rh7#
        • 2.Rg8#
      • 1...Sxe6
        • 2.Rh7#
        • 2.Rg8#
      • 1...Rxf6+!
    • 1.Bxg5+?
      • 1...Bh2
        • 2.Rxh2#
        • 2.Qxh2#
      • 1...Bh4
        • 2.Rxh4#
      • 1...Bxh1!
    • 1.Qf8?
      • threat
        • 2.Sxf6#
        • 2.Sh6#
        • 2.Se7#
      • 1...Bd6
        • 2.Se7#
      • 1...Sxe6!
  • Keys
    • 1.Se7!
      • threat
        • 2.Sxg6#
      • 1...Rf3
        • 2.Bxg3#
      • 1...Rf4
        • 2.Qb8#
      • 1...Rd5
        • 2.a8Q#
        • 2.a8R#
      • 1...Re5
        • 2.Qb8#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(e);S_CUTB(c)::R(A)+B(B),XB(b)
    • B(c);N_GUARD::R(A)+B(B),XB(b)
  • Tries
    • Try
      • S(H);P_SPINS(H),XP(g)
      • Threat
        • DUALS(3)
      • Refutation
        • R(e);CHECK,XS(H)
    • Try
      • B(B);CHECK,XP(f)
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::R(A),XB(b)
      • Refutation
        • B(c);XR(A)
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • B(b);::QAR(C)+S(H)
      • Refutation
        • S(d);XP(D)
  • Actual
    • S(H);
    • Threat
      • S(H),XP(h)
    • Vars
      • R(e);S_CUTB(c)::R(A)+B(B),XB(b)
      • R(e);S_CUTB(b)::QAR(C)
      • R(e);S_CUTB(c)::P=Q


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).