Problem Display
PID: 80002 (3R2K1/5R2/N3k1p1/1np1p1Pp/2r1rp2/B1bP4/2Q1n3/5Bq1 w - - 0 1)

Savournin, Jacques

Themes-64, 1973

3R2K1/5R2/N3k1p1/1np1p1Pp/2r1rp2/B1bP4/2Q1n3/5Bq1

#2

9 + 12


56 The Problemist 2008

SOLUTION


  • SOUND
  • Sets
    • 1...Qf2
      • 2.Bh3#
    • 1...Qd4
      • 2.Bh3#
    • 1...Rcd4
      • 2.Sxc5#
    • 1...Bd4
      • 2.Qxc4#
    • 1...Sxa3
      • 2.Sc7#
    • 1...Sd4
      • 2.Sc7#
    • 1...Sd6
      • 2.Sc7#
    • 1...Sa7
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
  • Tries
    • 1.Kf8?
      • threat
        • 2.Rf6#
      • 1...Sd6
        • 2.Sc7#
      • 1...Qxg5!
    • 1.Sxc5+?
      • 1...Qxc5
        • 2.Bh3#
      • 1...Rxc5!
    • 1.Rd6+?
      • 1...Sxd6
        • 2.Sc7#
      • 1...Kxd6!
  • Keys
    • 1.d4!
      • threat
        • 2.d5#
      • 1...Qxd4
        • 2.Bh3#
      • 1...Rcxd4
        • 2.Sxc5#
      • 1...Rexd4
        • 2.Qxg6#
      • 1...Bxd4
        • 2.Qxc4#
      • 1...Sexd4
        • 2.Bxc4#
      • 1...Sbxd4
        • 2.Sc7#
      • 1...cxd4
        • 2.Rf6#
      • 1...exd4
        • 2.Qxe4#
      • 1...Sd6
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#

This is a version

There are these versions: 134889

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • Q(a);N_GUARD::B(A)
    • R(d);N_GUARD,S_CUTQ(a)::S(F),XP(h)
    • B(c);OGATE::QAB(B),XR(d)
    • S(g);N_GUARD,XB(C)::S(F)
    • S(g);N_GUARD::S(F)
    • S(g);N_GUARD::S(F),XS(g)
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Threat
        • R1(G)
      • Vars
        • S(g);N_GUARD::S(F)
      • Refutation
        • Q(a);XP(E)
    • Try
      • S(F);CHECK,XP(h)
      • Vars
        • Q(a);XS(F)::B(A)
      • Refutation
        • R(d);XS(F)
    • Try
      • R(H);CHECK
      • Vars
        • S(g);SBLOCK,XR(H)::S(F)
      • Refutation
        • K(k);P-FLIGHT,P_SPINP(h),XR(H)
  • Actual
    • P(D);
    • Threat
      • P(D)
    • Vars
      • Q(a);N_GUARD,XP(D)::B(A)
      • R(d);N_GUARD,XP(D)::S(F),XP(h)
      • R(e);OGATE,XP(D)::QAR2(B),XP(l)
      • B(c);OGATE,XP(D)::QAB(B),XR(d)
      • S(b);OGATE,XP(D)::B(A),XR(d)
      • S(g);N_GUARD,XP(D)::S(F)
      • P(h);XP(D)::R1(G)
      • P(i);OGATEB,XP(D)::QAR2(B),XR(e)
      • S(g);N_GUARD::S(F)
      • S(g);N_GUARD::S(F),XS(g)


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).