MESON Chess Problem Database

Problem Display
PID: 155106 (1K5n/2B2R2/6B1/R6p/2k5/2P1pp2/1nPp3q/3N1Nbb w - - 0 1)

Williams, Philip Hamilton

Illustrated London News, 1907

(First published on Mon Oct 28 1907)

1K5n/2B2R2/6B1/R6p/2k5/2P1pp2/1nPp3q/3N1Nbb

#2

9 + 10

15351 SCPF/BCPS Black Books 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Qf4
      • 2.Rxf4#
    • 1...Qxc7+
      • 2.Rxc7#
    • 1...Qe2
      • 2.Rf4#
    • 1...Qf2
      • 2.Rf4#
    • 1...Qg2
      • 2.Rf4#
    • 1...Qh3
      • 2.Rf4#
    • 1...Sd3
      • 2.Bxd3#
    • 1...Sa4
      • 2.Bd3#
    • 1...Sxf7
      • 2.Bxf7#
    • 1...e2
      • 2.Sxd2#
    • 1...f2
      • 2.Sfxe3#
  • Tries
    • 1.Bxh2?
      • threat
        • 2.Rf4#
        • 2.Rc7#
      • 1...Sxd1
        • 2.Rc7#
      • 1...Sxg6
        • 2.Rc7#
      • 1...Sxf7
        • 2.Bxf7#
      • 1...Sd3
        • 2.Bxd3#
      • 1...Sa4
        • 2.Bd3#
        • 2.Rf4#
      • 1...e2
        • 2.Sxd2#
      • 1...f2
        • 2.Sfxe3#
      • 1...Bxh2+!
    • 1.Bg3?
      • threat
        • 2.Rf4#
        • 2.Rc7#
      • 1...Sxd1
        • 2.Rc7#
      • 1...Sxg6
        • 2.Rc7#
      • 1...Sxf7
        • 2.Bxf7#
      • 1...Qh4
        • 2.Rc7#
      • 1...Sd3
        • 2.Bxd3#
      • 1...Sa4
        • 2.Bd3#
        • 2.Rf4#
      • 1...e2
        • 2.Sxd2#
      • 1...f2
        • 2.Sfxe3#
      • 1...Qxg3+!
    • 1.Be5?
      • threat
        • 2.Sxb2#
        • 2.Rc7#
      • 1...Sxd1
        • 2.Bd3#
        • 2.Rc7#
      • 1...Sxf7
        • 2.Sxb2#
        • 2.Bxf7#
      • 1...Sd3
        • 2.Bxd3#
      • 1...Sa4
        • 2.Bd3#
      • 1...e2
        • 2.Sxb2#
        • 2.Sxd2#
      • 1...f2
        • 2.Sxb2#
        • 2.Sdxe3#
        • 2.Sfxe3#
      • 1...Qxe5+!
  • Keys
    • 1.Bf4!
      • threat
        • 2.Rc7#
      • 1...Qxf4+
        • 2.Rxf4#
      • 1...Sxf7
        • 2.Bxf7#
      • 1...Sd3
        • 2.Bxd3#
      • 1...Sa4
        • 2.Bd3#
      • 1...e2
        • 2.Sxd2#
      • 1...f2
        • 2.Sfxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • Q(e);N_GUARD::R(H),XQ(e)
    • Q(e);CHECK,OGATE,XB(G)::R(H),XQ(e)
    • Q(e);N_GUARD,N_PINB(G)::R(H)
    • S(c);N_GUARD::B(F),XS(c)
    • S(c);N_GUARD::B(F)
    • S(j);OGATE,XR(H)::B(F),XS(j)
    • P(f);N_GUARD,S_CUTQ(e)::S(B),XP(d)
    • P(g);S_CUTB(a)::S(B),XP(f)
  • Tries
    • Try
      • B(G);N_SPINB(G),XQ(e)
      • Threat
        • DUALS(2)
      • Vars
        • S(c);XS(A)::R(H)
        • S(j);XB(F)::R(H)
        • S(j);OGATE,XR(H)::B(F),XS(j)
        • S(c);N_GUARD::B(F),XS(c)
        • P(f);N_GUARD::S(B),XP(d)
        • P(g);S_CUTB(a)::S(B),XP(f)
      • Refutation
        • B(a);CHECK,XB(G)
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);XS(A)::R(H)
        • S(j);XB(F)::R(H)
        • S(j);OGATE,XR(H)::B(F),XS(j)
        • Q(e);N_PINB(G)::R(H)
        • S(c);N_GUARD::B(F),XS(c)
        • P(f);N_GUARD,S_CUTQ(e)::S(B),XP(d)
        • P(g);S_CUTB(a)::S(B),XP(f)
      • Refutation
        • Q(e);CHECK,XB(G)
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);N_GUARD::B(F),XS(c)
        • S(c);N_GUARD::B(F)
      • Refutation
        • Q(e);CHECK,XB(G)
  • Actual
    • B(G);
    • Threat
      • R(H)
    • Vars
      • Q(e);CHECK,OGATE,XB(G)::R(H),XQ(e)
      • S(j);OGATE,XR(H)::B(F),XS(j)
      • S(c);N_GUARD::B(F),XS(c)
      • S(c);N_GUARD::B(F)
      • P(f);N_GUARD,S_CUTQ(e)::S(B),XP(d)
      • P(g);S_CUTB(a)::S(B),XP(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).