MESON Chess Problem Database

Problem Display
PID: 2161 (8/6B1/5p2/5PN1/5k2/2K1N3/4P3/Q6R w - - 0 1)

Carpenter, George Edward

Source?, 0000

8/6B1/5p2/5PN1/5k2/2K1N3/4P3/Q6R

#2

8 + 2

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Kxg5
      • 2.Bh6#
  • Tries
    • 1.Kd2?
      • 1...Kxg5
        • 2.Bh6#
      • 1...fxg5
        • 2.Qe5#
      • 1...Kg3!
    • 1.Kd3?
      • 1...Kxg5
        • 2.Bh6#
      • 1...fxg5
        • 2.Be5#
        • 2.Qe5#
      • 1...Kg3!
    • 1.Kd4?
      • 1...Kxg5
        • 2.Bh6#
      • 1...fxg5
        • 2.Be5#
      • 1...Kg3!
    • 1.Rh3?
      • 1...Kxg5
        • 2.Bh6#
      • 1...fxg5
        • 2.Qa4#
      • 1...Ke5!
    • 1.Qf1+?
      • 1...Kxe3
        • 2.Rh3#
        • 2.Qf3#
      • 1...Kg3
        • 2.Se4#
        • 2.Rh3#
        • 2.Qf3#
      • 1...Kxg5
        • 2.Bh6#
      • 1...Ke5!
    • 1.Qg1?
      • 1...Ke5
        • 2.Qh2#
        • 2.Qg3#
      • 1...fxg5!
    • 1.Qa4+?
      • 1...Kg3
        • 2.Qh4#
      • 1...Ke5
        • 2.Sf7#
        • 2.Qd4#
      • 1...Kxg5
        • 2.Bh6#
        • 2.Qg4#
        • 2.Qh4#
      • 1...Kxe3!
  • Keys
    • 1.Qa8!
      • 1...Kxe3
        • 2.Qf3#
      • 1...Kg3
        • 2.Qf3#
      • 1...Ke5
        • 2.Qb8#
      • 1...Kxg5
        • 2.Bh6#
      • 1...fxg5
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,S_FLIGHT,XS(G)::B(H)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(G)::B(H)
        • P(b);N_GUARD,SBLOCK,XS(G)::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(G)::B(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(G)::B(H)
        • P(b);OGATE,SBLOCK,XS(G)::B(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(G)::B(H)
        • P(b);SBLOCK,XS(G)::QAR(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(G)::B(H)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • P(b);XS(G)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT,XS(E)::QAR1(A)
      • K(a);S_FLIGHT::QAR1(A)
      • K(a);P_SPINP(b),S_FLIGHT::QAB(A)
      • K(a);OGATEB,S_FLIGHT,XS(G)::B(H)
      • P(b);SBLOCK,XS(G)::QAR1(A)
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