MESON Chess Problem Database

Problem Display
PID: 64785 (1r1r4/8/6p1/Rn2qRP1/4k1bP/4b2P/BpK1n3/1Q6 w - - 0 1)

Stubbs, Arthur Goodwin

4th HM., Good Companions (February), 1922

1r1r4/8/6p1/Rn2qRP1/4k1bP/4b2P/BpK1n3/1Q6

#2

8 + 10

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Kd2#
  • Keys
    • 1.Ra4+!
      • 1...Kxf5
        • 2.hxg4#
      • 1...Qd4
        • 2.Kb3#
      • 1...Rd4
        • 2.Kxb2#
      • 1...Bd4
        • 2.Kd2#
      • 1...Sed4+
        • 2.Kxb2#
      • 1...Sbd4+
        • 2.Kd1#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(c);SBLOCK::QAB(A)+K(C)
  • Actual
    • R(F);CHECK
    • Vars
      • K(d);S_FLIGHT,XR(G)::P(D),XB(e)
      • Q(g);P_SPINQ(g)::QAB(A)+K(C)
      • R(j);P_SPINR(j)::QAB(A)+K(C),XP(a)
      • B(c);P_SPINB(c)::QAB(A)+K(C)
      • S(b);CHECK,P_SPINS(b)::QAB(A)+K(C),XP(a)
      • S(f);CHECK,P_SPINS(f)::QAB(A)+K(C)
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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).