MESON Chess Problem Database

Problem Display
PID: 101249 (3Nb3/8/2Rn1p2/3pkPb1/KQ3r1N/5p2/2P1n2B/4R3 w - - 0 1)

Stubbs, Arthur Goodwin

Good Companions, 1920

3Nb3/8/2Rn1p2/3pkPb1/KQ3r1N/5p2/2P1n2B/4R3

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxh4
      • 2.Qxf4#
    • 1...Bxc6+
      • 2.Sxc6#
    • 1...Sb5
      • 2.Re6#
    • 1...Sxf5
      • 2.Sxf3#
  • Keys
    • 1.c3!
      • threat
        • 2.Qd4#
      • 1...Bxc6+
        • 2.Sxc6#
      • 1...Bxh4
        • 2.Qxf4#
      • 1...Sxf5
        • 2.Sxf3#
      • 1...Sc4
        • 2.Qe7#
      • 1...d4
        • 2.Qxd4#
      • 1...Se4
        • 2.Qe7#
      • 1...Sb5
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(f);N_GUARD,XS(F)::QAB1(E),XR(c)
    • B(i);CHECK,XR(H)::S(I),XB(i)
    • S(g);N_PINR(H)::R1(H)
    • S(g);SBLOCK,XP(G)::S(F),XP(b)
  • Actual
    • P(B);
    • Threat
      • QAB1(E)
    • Vars
      • B(i);CHECK,XR(H)::S(I),XB(i)
      • B(f);N_GUARD,XS(F)::QAB1(E),XR(c)
      • S(g);SBLOCK,XP(G)::S(F),XP(b)
      • S(g);N_PINQ(E)::QAR2(E)
      • P(d);N_PINQ(E)::QAB1(E),XP(d)
      • S(g);N_PINQ(E),N_SPINS(a),SBLOCK::QAR2(E)
      • S(g);N_PINR(H)::R1(H)
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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).