MESON Chess Problem Database

Problem Display
PID: 193837 (2bB1RK1/8/1pN2Pn1/2p2kN1/2R2p1P/8/4Qp1r/2b2B2 w - - 0 1)

Mosely, Arthur James

3rd Prize, Pittsburgh Gazette-Times, 1916

2bB1RK1/8/1pN2Pn1/2p2kN1/2R2p1P/8/4Qp1r/2b2B2

#2

10 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rh3
      • 2.Bxh3#
    • 1...Ba6
      • 2.Qe6#
    • 1...Be6+
      • 2.Qxe6#
    • 1...Bb7
      • 2.Qe6#
    • 1...Se5
      • 2.Se7#
    • 1...Se7+
      • 2.Sxe7#
    • 1...Sh8
      • 2.Se7#
    • 1...f3
      • 2.Qd3#
      • 2.Qc2#
      • 2.Qe4#
  • Tries
    • 1.Rxf4+?
      • 1...Kxf4
        • 2.Qf3#
      • 1...Sxf4
        • 2.Se7#
      • 1...Bxf4!
    • 1.Rxc5+?
      • 1...Se5
        • 2.Se7#
      • 1...bxc5!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Bd3#
      • 1...Be6+
        • 2.Sf7#
      • 1...Se7+
        • 2.fxe7#
      • 1...Rh3
        • 2.Bxh3#
      • 1...Se5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • R(c);N_GUARD::B(A),XR(c)
    • B(i);N_GUARD::QAB1(B)
    • B(i);CHECK,N_GUARD::QAB1(B),XB(i)
    • S(h);N_GUARD::S(F)
    • S(h);CHECK,N_GUARD::S(F),XS(h)
  • Tries
    • Try
      • R(C);CHECK,XP(d)
      • Vars
        • K(f);P-FLIGHT,XR(C)::QAR1(B)
        • S(h);SBLOCK,XR(C)::S(F)
      • Refutation
        • B(a);XR(C)
    • Try
      • R(C);CHECK,XP(e)
      • Vars
        • S(h);P_SPINS(h)::S(F)
      • Refutation
        • P(g);XR(C)
  • Actual
    • Q(B);
    • Threat
      • B(A)
    • Vars
      • B(i);CHECK,SBLOCK::QAR(B)+S(E)
      • S(h);CHECK,OGATE::R(I)+P(G),XS(h)
      • R(c);N_GUARD::B(A),XR(c)
      • S(h);N_GUARD,SBLOCK::S(F)
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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).