MESON Chess Problem Database

Problem Display
PID: 2210 (3B4/2Pp2p1/6Q1/N2pk3/1P2p3/6P1/4K3/7B w - - 0 1)

Cook, Eugene Beauharnais

Source?, 0000

3B4/2Pp2p1/6Q1/N2pk3/1P2p3/6P1/4K3/7B

#2

8 + 5

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qxg7#
    • 1...d6
      • 2.Sc6#
  • Tries
    • 1.Ke3?
      • 1...d6
        • 2.Sc6#
      • 1...d4+!
    • 1.Be7?
      • 1...Kd4
        • 2.Qxg7#
      • 1...d4
        • 2.Qxe4#
      • 1...d6
        • 2.Sc6#
      • 1...e3!
    • 1.Qxe4+?
      • 1...Kd6
        • 2.Qxd5#
        • 2.Qe7#
        • 2.c8S#
      • 1...dxe4!
    • 1.Qg5+?
      • 1...Kd4
        • 2.Qxg7#
      • 1...Kd6
        • 2.Qe7#
      • 1...Ke6!
    • 1.Qxg7+?
      • 1...Kd6
        • 2.Qf6#
        • 2.Qe7#
      • 1...Ke6
        • 2.Qf6#
      • 1...Kf5!
    • 1.c8S?
      • 1...Kd4
        • 2.Qxg7#
      • 1...d4
        • 2.Qxe4#
      • 1...d6
        • 2.Sc6#
      • 1...e3!
  • Keys
    • 1.Qf7!
      • 1...Kd4
        • 2.Qxg7#
      • 1...Kd6
        • 2.Qe7#
      • 1...e3
        • 2.Qxd5#
      • 1...d4
        • 2.Sc4#
      • 1...d6
        • 2.Sc6#
      • 1...g5
        • 2.Qf6#
      • 1...g6
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB(F),XP(e)
    • P(d);N_GUARD::S(E)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(d);N_GUARD::S(E)
      • Refutation
        • P(b);CHECK
    • Try
      • B(H);
      • Vars
        • K(c);S_FLIGHT::QAB(F),XP(e)
        • P(b);N_GUARD::QAR1(F),XP(a)
        • P(d);N_GUARD::S(E)
      • Refutation
        • P(a);
    • Try
      • Q(F);CHECK,XP(a)
      • Refutation
        • P(b);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(F),XP(e)
        • K(c);S_FLIGHT::QAB1(F)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(F);CHECK,XP(e)
      • Vars
        • K(c);P-FLIGHT::QAR1(F)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • P(G);
      • Vars
        • K(c);S_FLIGHT::QAB(F),XP(e)
        • P(b);N_GUARD::QAR1(F),XP(a)
        • P(d);N_GUARD::S(E)
      • Refutation
        • P(a);
  • Actual
    • Q(F);
    • Vars
      • K(c);S_FLIGHT::QAB(F),XP(e)
      • K(c);S_FLIGHT::QAB1(F)
      • P(a);::QAR1(F),XP(b)
      • P(b);N_GUARD,SBLOCK::S(E)
      • P(d);N_GUARD,SBLOCK::S(E)
      • P(e);N_GUARD::QAB1(F)
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