MESON Chess Problem Database

Problem Display
PID: 165542 (Q3n3/R1p1p3/1rr5/1n2k1Pp/2P1N2K/b1NPP2B/1B6/8 w - - 0 1)

Hamilton, Charles Dingee Pennock

British Chess Magazine 15. (Healey MT) Ty., 1909-1910

Q3n3/R1p1p3/1rr5/1n2k1Pp/2P1N2K/b1NPP2B/1B6/8

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Qd5#
    • 1...Re6
      • 2.Qd5#
    • 1...Rf6
      • 2.Qd5#
    • 1...Rg6
      • 2.Qd5#
    • 1...Rh6
      • 2.Qd5#
    • 1...Bd6
      • 2.Sxb5#
    • 1...Sxc3
      • 2.Bxc3#
    • 1...Sbd6
      • 2.d4#
    • 1...Sxa7
      • 2.d4#
    • 1...Sed6
      • 2.Qh8#
  • Tries
    • 1.Sb1+?
      • 1...Sc3
        • 2.Bxc3#
      • 1...Sd4
        • 2.Bxd4#
      • 1...Bxb2!
    • 1.Sd1+?
      • 1...Sc3
        • 2.Bxc3#
      • 1...Sd4
        • 2.Bxd4#
      • 1...Bxb2!
    • 1.Sa2+?
      • 1...Sc3
        • 2.Bxc3#
      • 1...Sd4
        • 2.Bxd4#
      • 1...Bxb2!
    • 1.Se2+?
      • 1...Sc3
        • 2.Bxc3#
      • 1...Sd4
        • 2.Bxd4#
        • 2.exd4#
      • 1...Bxb2!
    • 1.Sa4+?
      • 1...Sc3
        • 2.Bxc3#
      • 1...Sd4
        • 2.Bxd4#
      • 1...Bxb2!
    • 1.Sd5+?
      • 1...Sc3
        • 2.Bxc3#
      • 1...Sd4
        • 2.Bxd4#
        • 2.exd4#
      • 1...Bxb2!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sf7#
      • 1...Rxc4+
        • 2.Sxc4#
      • 1...Kxd6
        • 2.Se4#
      • 1...Rxd6
        • 2.Qe4#
      • 1...Bxd6
        • 2.Sxb5#
      • 1...Sbxd6
        • 2.d4#
      • 1...Sexd6
        • 2.Qh8#
      • 1...cxd6
        • 2.Rxe7#
      • 1...exd6
        • 2.Qxe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(f);OGATE,P_PINS(G),XP(F)::QAR1(K)
    • R(f);OGATE::QAR1(K)
    • B(a);N_GUARD::B(A)+S(B),XS(b)
    • S(b);OGATE,P_SPINS(b),XS(B)::B(A),XS(b)
    • S(b);N_GUARD::P(C)
    • S(b);N_GUARD,XR(J)::P(C)
    • S(i);OGATE::QAB(K)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::B(A),XS(b)
      • Refutation
        • B(a);XB(A)
    • Try
      • S(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::B(A),XS(b)
      • Refutation
        • B(a);XB(A)
    • Try
      • S(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::B(A),XS(b)
      • Refutation
        • B(a);XB(A)
    • Try
      • S(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::B(A),XS(b)
      • Refutation
        • B(a);XB(A)
    • Try
      • S(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::B(A),XS(b)
      • Refutation
        • B(a);XB(A)
    • Try
      • S(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::B(A),XS(b)
      • Refutation
        • B(a);XB(A)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • R(f);CHECK,XP(F)::S(G),XR(f)
      • K(c);S_FLIGHT,XS(G)::S(B)
      • R(f);OGATE,SBLOCK,XS(G)::QAR1(K)
      • B(a);N_GUARD,XS(G)::B(A)+S(B),XS(b)
      • S(b);N_GUARD,SBLOCK,XS(G)::P(C)
      • S(i);OGATE,SBLOCK,XS(G)::QAB(K)
      • P(g);OGATE,SBLOCK,XS(G)::R(J),XP(h)
      • P(h);OGATEB,SBLOCK,XS(G)::QAR(K),XS(i)
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).