MESON Chess Problem Database

Problem Display
PID: 7384 (8/2PPNPP1/2n1k1n1/1Q2N1BB/4b3/8/8/4K3 w - - 0 1)

Morse, Christopher Jeremy

StrateGems, 1999

8/2PPNPP1/2n1k1n1/1Q2N1BB/4b3/8/8/4K3

#2

10 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qd5#
    • 1...Bc2
      • 2.Qd5#
    • 1...Bd3
      • 2.Qd5#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Bf5
      • 2.Qd5#
  • Tries
    • 1.Bg4+?
      • 1...Bf5
        • 2.Qd5#
      • 1...Kd6!
    • 1.Qxc6+?
      • 1...Kxe5
        • 2.Qf6#
      • 1...Bxc6!
  • Keys
    • 1.Sc4!
      • 1...Kxd7
        • 2.c8Q#
      • 1...Kxf7
        • 2.g8Q#
      • 1...Scxe7
        • 2.d8S#
      • 1...Sgxe7
        • 2.f8S#
      • 1...Bb1
        • 2.Qd5#
      • 1...Bh1
        • 2.Qf5#
      • 1...Bc2
        • 2.Qd5#
      • 1...Bg2
        • 2.Qf5#
      • 1...Bd3
        • 2.Qd5#
      • 1...Bf3
        • 2.Qf5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Bf5
        • 2.Qd5#
        • 2.Qxf5#
      • 1...Sb4
        • 2.d8S#
      • 1...Sd4
        • 2.d8S#
      • 1...Sa5
        • 2.d8S#
      • 1...Sce5
        • 2.d8S#
      • 1...Sa7
        • 2.d8S#
      • 1...Sb8
        • 2.d8S#
      • 1...Sd8
        • 2.cxd8S#
      • 1...Sf4
        • 2.f8S#
      • 1...Sh4
        • 2.f8S#
      • 1...Sge5
        • 2.f8S#
      • 1...Sf8
        • 2.gxf8S#
      • 1...Sh8
        • 2.f8S#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 19
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::QAB1(B)
    • B(a);N_GUARD::QAB1(B),XB(a)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • B(a);P_SPINB(a)::QAB1(B)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(B);CHECK,XS(b)
      • Vars
        • K(c);OGATE,P-FLIGHT,XS(C)::QAB1(B)
      • Refutation
        • B(a);XQ(B)
  • Actual
    • S(C);
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT,XP(G)::P=Q
      • K(c);P_SPINS(d),S_FLIGHT,XP(I)::P=Q
      • S(b);N_GUARD,XS(H)::P=S
      • S(d);N_GUARD,XS(H)::P=S
      • B(a);N_GUARD::QAB1(B)
      • B(a);N_GUARD::QAB1(B),XB(a)
      • S(b);N_GUARD::P=S
      • S(b);OGATE::PXS(b)=S
      • S(d);N_GUARD::P=S
      • S(d);OGATE::PXS(d)=S
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