MESON Chess Problem Database

Problem Display
PID: 169412 (3b4/1p1Q4/1p1P1pN1/1P1k1rn1/4Nr2/nK1BP3/2P5/3R4 w - - 0 1)

Hawes, Frederick Thomas

3rd Prize, Sydney Morning Herald, 1911

3b4/1p1Q4/1p1P1pN1/1P1k1rn1/4Nr2/nK1BP3/2P5/3R4

#2

10 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rg4
      • 2.Qxf5#
    • 1...Rh4
      • 2.Qxf5#
    • 1...Re5
      • 2.Sxf4#
    • 1...Bc7
      • 2.dxc7#
    • 1...Be7
      • 2.dxe7#
    • 1...Sb1
      • 2.c4#
    • 1...Sxc2
      • 2.Bxc2#
    • 1...Sxb5
      • 2.c4#
    • 1...Sf3
      • 2.Qf7#
    • 1...Sh3
      • 2.Qf7#
    • 1...Se6
      • 2.Qxb7#
    • 1...Sf7
      • 2.Qxf7#
    • 1...Sh7
      • 2.Qf7#
  • Tries
    • 1.Qf7+?
      • 1...Se6
        • 2.Qxb7#
      • 1...Sxf7!
  • Keys
    • 1.Kb4!
      • 1...Rxe4+
        • 2.Bc4#
      • 1...Sxc2+
        • 2.Bxc2#
      • 1...Sxb5
        • 2.c4#
      • 1...Sxe4
        • 2.Bc4#
      • 1...Rf1
        • 2.Sc3#
      • 1...Rf2
        • 2.Sc3#
      • 1...Rf3
        • 2.Sc3#
      • 1...Rg4
        • 2.Qxf5#
      • 1...Rh4
        • 2.Qxf5#
      • 1...Re5
        • 2.Sxf4#
      • 1...Bc7
        • 2.dxc7#
      • 1...Be7
        • 2.dxe7#
      • 1...Sb1
        • 2.c4#
      • 1...Sc4
        • 2.Sc3#
      • 1...Sf3
        • 2.Qf7#
      • 1...Sh3
        • 2.Qf7#
      • 1...Se6
        • 2.Qxb7#
      • 1...Sf7
        • 2.Qxf7#
      • 1...Sh7
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD::QAR2(J),XR(d)
    • R(d);N_GUARD,SBLOCK::S(I),XR(b)
    • B(i);OGATE::QAR(J)+P(H),XB(i)
    • S(a);N_GUARD::P(B)
    • S(a);OGATE,XP(B)::R(A)+B(D),XS(a)
    • S(a);N_GUARD,XP(G)::P(B)
    • S(e);N_GUARD::QAB(J)
    • S(e);SBLOCK::QAB(J),XP(h)
    • S(e);N_GUARD::QAB(J),XS(e)
  • Tries
    • Try
      • Q(J);CHECK
      • Vars
        • S(e);P_SPINS(e),SBLOCK::QAB(J),XP(h)
      • Refutation
        • S(e);XQ(J)
  • Actual
    • K(C);P-FLIGHT,P_SPINS(F)
    • Vars
      • R(b);CHECK,SBLOCK,XS(F)::R(A)+B(D),DCHECK
      • S(a);CHECK,OGATE,XP(B)::R(A)+B(D),XS(a)
      • S(a);N_GUARD,XP(G)::P(B)
      • S(e);SBLOCK,XS(F)::R(A)+B(D),DCHECK
      • R(b);N_PINS(F)::S(F)
      • R(b);N_GUARD::QAR2(J),XR(d)
      • R(d);N_GUARD,SBLOCK::S(I),XR(b)
      • B(i);OGATE::QAR(J)+P(H),XB(i)
      • B(i);OGATE,P_PINP(H)::QAR(J)+P(H),XB(i)
      • S(a);N_GUARD::P(B)
      • S(a);N_PINS(F)::S(F)
      • S(e);N_GUARD::QAB(J)
      • S(e);SBLOCK::QAB(J),XP(h)
      • S(e);N_GUARD::QAB(J),XS(e)
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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).