MESON Chess Problem Database

Problem Display
PID: 145572 (3N1B2/5p2/2R2P2/1r2kB2/pr2P2p/b7/b2P3P/qn3RQK w - - 0 1)

Sparke, Arthur M

Good Companions (October), 1917

3N1B2/5p2/2R2P2/1r2kB2/pr2P2p/b7/b2P3P/qn3RQK

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.d4#
    • 1...Rb3
      • 2.Sxf7#
    • 1...Rc4
      • 2.Sxf7#
    • 1...Rd5
      • 2.Sxf7#
  • Tries
    • 1.Bg6?
      • threat
        • 2.Bd6#
      • 1...Rxe4
        • 2.Rf5#
      • 1...Qd4
        • 2.Qg5#
      • 1...Rb2
        • 2.d4#
      • 1...Rb3
        • 2.Sxf7#
      • 1...Rc4
        • 2.Sxf7#
      • 1...Rd4
        • 2.Qg5#
      • 1...Rd5
        • 2.Sxf7#
      • 1...fxg6!
    • 1.Qc5+?
      • 1...Bd5
        • 2.Sxf7#
      • 1...Rxc5!
  • Keys
    • 1.Bh7!
      • threat
        • 2.Bd6#
      • 1...Rxe4
        • 2.Rf5#
      • 1...Qd4
        • 2.Qg5#
      • 1...Rb2
        • 2.d4#
      • 1...Rb3
        • 2.Sxf7#
      • 1...Rc4
        • 2.Sxf7#
      • 1...Rd4
        • 2.Qg5#
      • 1...Rd5
        • 2.Sxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD,S_CUTQ(a)::P(D)
    • R(f);S_CUTB(c)::S(J),XP(j)
    • R(h);S_CUTB(c)::S(J),XP(j)
  • Tries
    • Try
      • B(G);
      • Threat
        • B(K)
      • Vars
        • R(f);SBLOCK,XP(F)::R1(A)
        • Q(a);SBLOCK::QAR2(B)
        • R(f);N_GUARD,S_CUTQ(a)::P(D)
        • R(f);S_CUTB(c)::S(J),XP(j)
        • R(f);SBLOCK::QAR2(B)
        • R(h);S_CUTB(c)::S(J),XP(j)
      • Refutation
        • P(j);XB(G)
    • Try
      • Q(B);CHECK
      • Vars
        • B(c);P_PINP(F),P_SPINB(c)::S(J),XP(j)
      • Refutation
        • R(h);XQ(B)
  • Actual
    • B(G);
    • Threat
      • B(K)
    • Vars
      • R(f);SBLOCK,XP(F)::R1(A)
      • Q(a);SBLOCK::QAR2(B)
      • R(f);N_GUARD,S_CUTQ(a)::P(D)
      • R(f);S_CUTB(c)::S(J),XP(j)
      • R(f);SBLOCK::QAR2(B)
      • R(h);S_CUTB(c)::S(J),XP(j)
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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).