MESON Chess Problem Database

Problem Display
PID: 223324 (5B2/1nbpP3/3k2n1/N4p1b/1P3Pp1/3K1PQ1/8/1BR5 w - - 0 1)

Cumming, George AW

The Sunny South, 1886

5B2/1nbpP3/3k2n1/N4p1b/1P3Pp1/3K1PQ1/8/1BR5

#2

10 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sxb7+?
      • 1...Kd5
        • 2.Ba2#
      • 1...Ke6!
    • 1.Rc6+?
      • 1...Kd5
        • 2.Ba2#
      • 1...dxc6!
    • 1.e8Q+?
      • 1...Kd5
        • 2.Ba2#
        • 2.Qf7#
      • 1...Sxf8
        • 2.Qe5#
      • 1...Se7!
    • 1.e8S+?
      • 1...Kd5
        • 2.Sxc7#
        • 2.Ba2#
      • 1...Ke6!
  • Keys
    • 1.Ba2!
      • threat
        • 2.Sxb7#
        • 2.e8S#
      • 1...Sxf4+
        • 2.Qxf4#
      • 1...Se5+
        • 2.fxe5#
      • 1...Sc5+
        • 2.bxc5#
      • 1...Bxa5
        • 2.e8S#
      • 1...Sxe7
        • 2.Sxb7#
      • 1...Sxf8
        • 2.exf8Q#
        • 2.exf8B#
      • 1...Sxa5
        • 2.e8S#
      • 1...Sh4
        • 2.Sxb7#
        • 2.e8Q#
        • 2.e8S#
        • 2.e8B#
        • 2.e8R#
      • 1...Sh8
        • 2.Sxb7#
        • 2.e8Q#
        • 2.e8S#
        • 2.e8B#
        • 2.e8R#
      • 1...Sd8
        • 2.e8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);CHECK,XS(f)
      • Vars
        • K(d);P-FLIGHT::B(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(d);P-FLIGHT::B(A)
      • Refutation
        • P(h);XR(B)
    • Try
      • P(I);CHECK
      • Vars
        • S(e);XB(J)::QAB1(I)
      • Refutation
        • S(e);P_SPINS(e)
    • Try
      • P(I);CHECK
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • B(A);
    • Threat
      • DUALS(2)
    • Vars
      • S(e);CHECK,OGATE,P_SPINS(e),XP(G)::QAB(E),XS(e)
      • S(e);CHECK,OGATE::P(G),XS(e)
      • S(f);CHECK,OGATE::P(F),XS(f)
      • B(g);XS(H)::P=S
      • S(e);P_SPINS(e),XP(I)::S(H),XS(f)
      • S(e);OGATE,XB(J)::PXS(e)=Q
      • S(f);XS(H)::P=S
      • S(f);::P=S
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Developed and maintained by Brian Stephenson.
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