MESON Chess Problem Database

Problem Display
PID: 181093 (3QNbnR/3r4/3qp2p/2PP1kBP/2R5/5N2/8/2K5 w - - 0 1)

Campling, ES

1st Prize, Manchester Weekly Times, 1904

3QNbnR/3r4/3qp2p/2PP1kBP/2R5/5N2/8/2K5

#2

10 + 7

563 Liverpool Courier 1914
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qf4+
      • 2.Rxf4#
    • 1...Qe5
      • 2.Sh4#
    • 1...Qe7
      • 2.Rf4#
    • 1...Qxd5
      • 2.Rf4#
    • 1...Qa6
      • 2.Rf4#
    • 1...Qb6
      • 2.Rf4#
    • 1...Qc6
      • 2.Rf4#
    • 1...Re7
      • 2.Sxd6#
    • 1...Be7
      • 2.Sg7#
    • 1...Sf6
      • 2.Qxf6#
    • 1...Se7
      • 2.Rxf8#
    • 1...e5
      • 2.Sh4#
    • 1...hxg5
      • 2.Qxg5#
  • Tries
    • 1.Sxd6+?
      • 1...Rxd6
        • 2.Rf4#
      • 1...Bxd6!
    • 1.Qxd7?
      • threat
        • 2.Qh7#
      • 1...Qf4+
        • 2.Rxf4#
      • 1...Qxd7
        • 2.Rf4#
      • 1...Qc7
        • 2.Qxe6#
      • 1...Qe7
        • 2.Rf4#
      • 1...Be7
        • 2.Sg7#
      • 1...Bg7
        • 2.Sxd6#
        • 2.Sxg7#
      • 1...Se7
        • 2.Sxd6#
        • 2.Rxf8#
      • 1...Sf6!
  • Keys
    • 1.Qe7!
      • 1...Qf4+
        • 2.Rxf4#
      • 1...Qxc5
        • 2.Qxe6#
      • 1...Qxe7
        • 2.Rf4#
      • 1...Qxd5
        • 2.Rf4#
      • 1...Rxe7
        • 2.Sxd6#
      • 1...Bxe7
        • 2.Sg7#
      • 1...Sxe7
        • 2.Rxf8#
      • 1...exd5
        • 2.Sh4#
      • 1...hxg5
        • 2.Qxg5#
      • 1...Qh2
        • 2.Qxe6#
      • 1...Qg3
        • 2.Qxe6#
      • 1...Qe5
        • 2.Sh4#
      • 1...Qc7
        • 2.Qxe6#
      • 1...Qb8
        • 2.Qxe6#
      • 1...Qa6
        • 2.Rf4#
      • 1...Qb6
        • 2.Rf4#
      • 1...Qc6
        • 2.Rf4#
      • 1...Ra7
        • 2.Sxd6#
      • 1...Rb7
        • 2.Sxd6#
      • 1...Rc7
        • 2.Sxd6#
      • 1...Rd8
        • 2.Qh7#
      • 1...Bg7
        • 2.Sxg7#
      • 1...Sf6
        • 2.Qxf6#
      • 1...e5
        • 2.Sh4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • Q(b);CHECK,N_GUARD::R1(C),XQ(b)
    • Q(b);SBLOCK::S(B)
    • Q(b);N_GUARD::R1(C)
    • Q(b);N_GUARD,XP(E)::R1(C)
    • R(e);N_GUARD,S_CUTB(f)::S(I),XQ(b)
    • B(f);N_GUARD,S_CUTR(e)::S(I)
    • S(g);N_GUARD::QAR1(H),XS(g)
    • S(g);OGATE::R(J),XB(f)
    • P(c);SBLOCK::S(B)
    • P(d);OGATE,XB(F)::QAR1(H),XP(d)
  • Tries
    • Try
      • S(I);CHECK,XQ(b)
      • Vars
        • R(e);XS(I)::R1(C)
      • Refutation
        • B(f);XS(I)
    • Try
      • Q(H);P_PINP(c),XR(e)
      • Threat
        • QAB(H)
      • Vars
        • Q(b);CHECK,N_GUARD::R1(C),XQ(b)
        • Q(b);N_GUARD,N_SPINP(c),XQ(H)::R1(C)
        • Q(b);N_GUARD::QAB1(H),XP(c)
        • Q(b);N_GUARD::R1(C)
        • B(f);N_GUARD::S(I)
      • Refutation
        • S(g);
  • Actual
    • Q(H);
    • Vars
      • Q(b);CHECK,N_GUARD::R1(C),XQ(b)
      • Q(b);N_GUARD,P_PINR(C),XP(D)::QAB1(H),XP(c)
      • Q(b);N_GUARD,XQ(H)::R1(C)
      • Q(b);N_GUARD,XP(E)::R1(C)
      • R(e);N_GUARD,XQ(H)::S(I),XQ(b)
      • B(f);N_GUARD,XQ(H)::S(I)
      • S(g);OGATE,XQ(H)::R(J),XB(f)
      • P(c);XP(E)::S(B)
      • P(d);OGATE,XB(F)::QAR1(H),XP(d)
      • Q(b);N_GUARD::QAB1(H),XP(c)
      • Q(b);SBLOCK::S(B)
      • Q(b);N_GUARD::R1(C)
      • R(e);N_GUARD::S(I),XQ(b)
      • R(e);N_GUARD::QAB(H)
      • B(f);N_GUARD::S(I),XB(f)
      • S(g);N_GUARD::QAR1(H),XS(g)
      • P(c);::S(B)
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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).