MESON Chess Problem Database

Problem Display
PID: 2282 (2b1N3/6Q1/4k3/3N4/K4P2/8/8/8 w - - 0 1)

Cook, J Jesse

Source?, 0000

2b1N3/6Q1/4k3/3N4/K4P2/8/8/8

#2

5 + 2

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Tries
    • 1.Sb6?
      • threat
        • 2.Qf6#
      • 1...Bd7+
        • 2.Qxd7#
      • 1...Kf5!
    • 1.Sef6?
      • 1...Bd7+
        • 2.Qxd7#
      • 1...Kf5
        • 2.Qg4#
      • 1...Ba6
        • 2.Qd7#
      • 1...Bb7
        • 2.Qd7#
      • 1...Kd6!
    • 1.Qg8+?
      • 1...Kf5
        • 2.Sd6#
      • 1...Kd7!
  • Keys
    • 1.Sdf6!
      • 1...Bd7+
        • 2.Qxd7#
      • 1...Kf5
        • 2.Qg4#
      • 1...Ba6
        • 2.Qd7#
      • 1...Bb7
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(D)
      • Vars
        • B(b);CHECK,N_GUARD::QAB1(D),XB(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • B(b);CHECK,N_GUARD::QAB1(D),XB(b)
        • K(a);S_FLIGHT::QAB1(D)
        • B(b);N_GUARD::QAB1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);S_FLIGHT::S(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • B(b);CHECK,N_GUARD::QAB1(D),XB(b)
      • K(a);S_FLIGHT::QAB1(D)
      • B(b);N_GUARD::QAB1(D)
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