MESON Chess Problem Database

Problem Display
PID: 44509 (8/1PR5/1KB1q3/P3pN2/QBk1p3/n2NP3/b1Pp2R1/rrb5 w - - 0 1)

Kipping, Cyril Stanley

Pittsburgh Sun, 1914

8/1PR5/1KB1q3/P3pN2/QBk1p3/n2NP3/b1Pp2R1/rrb5

#2

12 + 10

4792 300 Chess Problems 1916

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Bb5#
    • 1...Qxf5
      • 2.Bxe4#
    • 1...Qd7
      • 2.Sxe5#
    • 1...Qf7
      • 2.Sxe5#
      • 2.Sd6#
    • 1...Qc8
      • 2.Sxe5#
      • 2.Sd6#
    • 1...Qg8
      • 2.Sxe5#
      • 2.Sd6#
      • 2.Bxe4#
    • 1...Qxc6+
      • 2.Qxc6#
    • 1...Qd6
      • 2.Sxd6#
    • 1...Qg6
      • 2.Sxe5#
    • 1...Qh6
      • 2.Sxe5#
    • 1...Qe8
      • 2.Sd6#
    • 1...Rxb4+
      • 2.Qxb4#
    • 1...Bb2
      • 2.Bxd2#
    • 1...Sxc2
      • 2.Qxc2#
    • 1...Sb5
      • 2.Qxb5#
  • Tries
    • 1.Sb2+?
      • 1...Bxb2
        • 2.Bxd2#
      • 1...Rxb2!
  • Keys
    • 1.Rg4!
      • threat
        • 2.Rxe4#
      • 1...Qxc6+
        • 2.Qxc6#
      • 1...Rxb4+
        • 2.Qxb4#
      • 1...Qxf5
        • 2.Bxe4#
      • 1...Sxc2
        • 2.Qxc2#
      • 1...Qd5
        • 2.Bb5#
      • 1...Qd7
        • 2.Sxe5#
      • 1...Qd6
        • 2.Sxd6#
      • 1...Bb2
        • 2.Bxd2#
      • 1...Sb5
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(j);OGATE,SBLOCK::R(L)+B(J),DCHECK
    • Q(j);OGATE,XS(H)::R(L)+B(J),XP(h)
    • Q(j);N_GUARD::S(C),XP(i)
    • Q(j);CHECK,OGATE,P_SPINQ(j),XB(J)::QAR2(E),XQ(j)
    • Q(j);N_GUARD::S(H),XQ(j)
    • Q(j);N_GUARD::S(H)
    • R(b);CHECK,OGATE,P_PINB(J),P_SPINR(b),XB(F)::QAR1(E),XR(b)
    • B(c);N_PINB(F),P_PINB(J)::QAR(E)+B(F),XP(e)
    • S(f);OGATE,XP(A)::QAR2(E),XS(f)
    • S(f);N_GUARD,N_PINB(F),P_PINB(J)::QAB1(E),XS(f)
  • Tries
    • Try
      • S(C);CHECK,N_SPINB(F),P_SPINB(J)
      • Vars
        • B(c);XS(C)::QAR(E)+B(F),XP(e)
      • Refutation
        • R(b);N_PINB(J),P_PINB(F),XS(C)
  • Actual
    • R(B);P_PINP(h)
    • Threat
      • R(B),XP(h)
    • Vars
      • Q(j);CHECK,OGATE,P_SPINQ(j),XB(J)::QAR2(E),XQ(j)
      • R(b);CHECK,OGATE,P_PINB(J),P_SPINR(b),XB(F)::QAR1(E),XR(b)
      • Q(j);OGATE,XS(H)::R(L)+B(J),XP(h)
      • S(f);OGATE,XP(A)::QAR2(E),XS(f)
      • Q(j);OGATE,SBLOCK::R(L)+B(J),DCHECK
      • Q(j);N_GUARD::S(C),XP(i)
      • Q(j);N_GUARD::S(H),XQ(j)
      • B(c);N_PINB(F),P_PINB(J)::QAR(E)+B(F),XP(e)
      • S(f);N_GUARD,N_PINB(F),P_PINB(J)::QAB1(E),XS(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).