MESON Chess Problem Database

Problem Display
PID: 229362 (B6Q/3pp3/1KnpP3/3k2P1/6P1/P5B1/2N1N3/8 w - - 0 1)

Gray, Henry

The Field, 1896

(First published on Thu Nov 5 1896)

B6Q/3pp3/1KnpP3/3k2P1/6P1/P5B1/2N1N3/8

#2

10 + 5

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Qg8#
    • 1...dxe6
      • 2.Qd4#
  • Tries
    • 1.Kb5?
      • 1...Kxe6
        • 2.Qg8#
      • 1...dxe6
        • 2.Sc3#
        • 2.Bxc6#
        • 2.Qd4#
        • 2.Qh1#
      • 1...Ke4!
    • 1.Se1?
      • 1...Ke4
        • 2.Qd4#
      • 1...Kxe6
        • 2.Qg8#
      • 1...dxe6
        • 2.Qd4#
      • 1...Kc4!
    • 1.Se3+?
      • 1...Kxe6
        • 2.Qg8#
      • 1...Ke4!
    • 1.Sb4+?
      • 1...Kc4
        • 2.Qc3#
      • 1...Kxe6
        • 2.Qg8#
      • 1...Ke4!
    • 1.Sg1?
      • 1...Ke4
        • 2.Qd4#
      • 1...Kxe6
        • 2.Qg8#
      • 1...dxe6
        • 2.Qd4#
      • 1...Kc4!
    • 1.Sc3+?
      • 1...Kxe6
        • 2.Qg8#
      • 1...Kc4!
    • 1.Bxc6+?
      • 1...Kc4
        • 2.Qc3#
      • 1...Kxe6
        • 2.Qg8#
      • 1...dxc6!
    • 1.Qe5+?
      • 1...Kc4
        • 2.Qb5#
      • 1...dxe5!
    • 1.Qh7?
      • 1...Kxe6
        • 2.Qf5#
        • 2.Qg8#
      • 1...dxe6
        • 2.Se3#
        • 2.Qd3#
      • 1...Kc4!
  • Keys
    • 1.Sc1!
      • 1...Kc4
        • 2.Se3#
      • 1...Ke4
        • 2.Qh1#
      • 1...Kxe6
        • 2.Qg8#
      • 1...dxe6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINS(b),OGATEB,S_FLIGHT,XP(H)::QAB(J)
    • P(d);SBLOCK,XP(H)::QAR1(J)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Vars
        • K(a);N_SPINS(b),OGATEB,S_FLIGHT,XP(H)::QAB(J)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(A);
      • Vars
        • K(a);S_FLIGHT::QAR1(J)
        • K(a);N_SPINS(b),OGATEB,S_FLIGHT,XP(H)::QAB(J)
        • P(d);SBLOCK,XP(H)::QAR1(J)
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
    • Try
      • S(A);CHECK
      • Vars
        • K(a);N_SPINS(b),S_FLIGHT,XP(H)::QAB(J)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(A);CHECK
      • Vars
        • K(a);N_SPINS(b),S_FLIGHT::QAR1(J)
        • K(a);N_SPINS(b),S_FLIGHT,XP(H)::QAB(J)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(J)
        • K(a);N_SPINS(b),OGATEB,S_FLIGHT,XP(H)::QAB(J)
        • P(d);SBLOCK,XP(H)::QAR1(J)
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);N_SPINS(b),S_FLIGHT,XP(H)::QAB(J)
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
    • Try
      • B(I);CHECK,XS(b)
      • Vars
        • K(a);S_FLIGHT::QAR1(J)
        • K(a);S_FLIGHT,XP(H)::QAB(J)
      • Refutation
        • P(d);XB(I)
    • Try
      • Q(J);CHECK
      • Vars
        • K(a);N_SPINS(b),OGATE,S_FLIGHT::QAB1(J)
      • Refutation
        • P(c);XQ(J)
    • Try
      • Q(J);
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(a);N_SPINS(b),S_FLIGHT::S(A)
      • K(a);S_FLIGHT::QAB(J)
      • K(a);N_SPINS(b),OGATEB,S_FLIGHT,XP(H)::QAB(J)
      • P(d);SBLOCK,XP(H)::QAR1(J)
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